Hydroelectric power plants may influence profit of company

International Nuclear Information System (INIS)

Regula, E.

2006-01-01

In this interview with divisional manager of the Division of control of operation of hydroelectric power plants of the Slovenske elektrarne, a.s. Mr. Milan Chudy is published. The effectiveness and its optimisation in hydroelectric power plants of the Slovenske elektrarne, a.s. are discussed

Risks in the operation of hydroelectric power plants and nuclear power in Brazil

International Nuclear Information System (INIS)

Goldemberg, J.

1986-01-01

A comparison between the utilization of electrical energy generated by hydroelectric power plant and nuclear power plant is made. The risks from nuclear installations and the environmental effects of hydroelectric power plants and nuclear power plants are presented. (E.G.) [pt

Hydroelectric power utilization of the River Crna Reka

International Nuclear Information System (INIS)

Ivanova-Davidovikj, Jasna

2001-01-01

In the paper several feasibility studies for rational use of the Macedonian River Crna Reka, developed by foreign companies are analysed. The utilization of the hydro-power potential of the River Crna Reka is predicted to be by realization of two hydroelectric power plants with total capacity of 450 MW, as well as annual electric power generation of 600 GWh. This two HPPs will facilitate the development of the Macedonian electric power system

Improvements for conventional clean energies: hydroelectric power

International Nuclear Information System (INIS)

Henry, P.

1991-01-01

Hydro-electric energy offers considerable possibilities and advantages which should be exploited before considering the construction of power which use fossil fuels. In fact: - hydro-electric is the only renewable energy available in very large quantities at competitive prices, - there are still many possibilities for producing it since at present only 14% is exploited, - hydraulic machines have been considerably improved over recent years, - the improvements make it possible to use watercourses in successive stages thus considerably reducing damage to the environment, - hydro-electric installations have a regulating effect, - vast areas of uncultivated land can be irrigated using the water reserves created by the artificial lakes. All these reasons favour intensive exploitation of hydro-electric energy reserves, in spite of the initial investment costs, which are sometimes higher than those for constructing fuel/driven power stations. (author) 9 figs., 1 tab., 3 refs

Small hydroelectric power plants - shelf goods or tailor-made?

International Nuclear Information System (INIS)

Aas, Trond R.

2002-01-01

If small hydroelectric power plants are defined to be hydroelectric power plants of up to a few 1000 kW, they should be shelf goods because of cost considerations. Design of small hydroelectric power plants is a many-sided optimization task, on a level with constructing larger hydro power plants. But the budget for a small hydro power plant does not permit any comprehensive evaluations. The most important costs are the one-time costs in the form of investments and the following annual costs in the form of operation and maintenance, and losses. Financing costs are not considered in this article

Estimation of free-flowingmicro hydroelectric power stations in Krasnoyarsk region

OpenAIRE

Kachina, E.; Botcharova, E.

2010-01-01

The external factors defining expediency of using micro hydroelectric power stations are considered. Exploration of areas of Krasnoyarsk region, which are suitable for usage of micro hydroelectric power stations is carried out. The market of primary real small hydroelectric engineering in Krasnoyarsk region is defined.

Presentation plan of the reconstruction and upgrade hydroelectric power plant 'Zvornik'

Directory of Open Access Journals (Sweden)

Krstić Dušan B.

2016-01-01

Full Text Available By the basic project of the energy utilization of the middle part of the river Drina (from Višegrad to Zvornik building of five large hydroelectric power plants was planned. Hydroelectric power plant near Zvornik had the greatest advantage, and it is the first built. Hydroelectric power plant 'Zvornik' separates the river Drina, about 1 km upstream from Mali Zvornik in Serbia and Zvornik in Bosnia and Herzegovina. In order to extend the work life, by the urban development project was planned modernization of production aggregates and associated equipment, the upgrade of annexes above the aggregate siphons A1 and A2, as well as the upgrade of the annexes of the powerhouse on the right bank of the river in the function of accommodation of electrical equipment. By replacing of the vital parts of turbines with increasing diameter with an increase of efficiency, Bow and power, as well as replacing generators with new generator of higher power with excitation and all the necessary auxiliary equipment, will ensure reliable operation of the hydroelectric power plant and will extend the working life of the next 40 years, creating opportunities for retrofitting additional fifth unit.

Hydroelectricity and sustainable development

International Nuclear Information System (INIS)

Dubeau, D.

1995-01-01

From 1975 to 1992, hydroelectricity helped reduce greenhouse gas emissions in Quebec by 20%. For Hydro-Quebec, energy conservation and hydroelectric development are basic complementary tools for sustainable development. Recent studies show that developing only 50% of economically exploitable hydroelectric potential (30% of the gross theoretical potential) of different regions worldwide would considerably reduce greenhouse gas and SO 2 emissions. However, hydroelectric systems produce environmental and social impacts locally that require mitigative measures. To fulfill its mandate in a sustainable development context, Hydro-Quebec has adopted methods such as integrated resource planning, the assessment of externalities, multi criteria decision tools and public participations

18 CFR 292.209 - Exceptions from requirements for hydroelectric small power production facilities located at a new...

Science.gov (United States)

2010-04-01

... requirements for hydroelectric small power production facilities located at a new dam or diversion. 292.209... Exceptions from requirements for hydroelectric small power production facilities located at a new dam or... the Federal Power Act, at which non-Federal hydroelectric development is permissible; or (2) An...

Increase of hydroelectric power plant operation reliability

International Nuclear Information System (INIS)

Koshumbaev, M.B.

2006-01-01

The new design of the turbine of hydroelectric power plant (HPP) is executed in the form of a pipe with plates. Proposed solution allows increasing the hydroelectric power plant capacity at existing head and water flow. At that time the HPP turbine reliability is increase, its operation performances are improving. Design efficiency is effective mostly for small-scale and micro-HPP due to reliable operation, low-end technology, and harmless ecological application. (author)

Hydroelectric power development and the ice regime of inland waters: A northern community perspective

International Nuclear Information System (INIS)

Gerard, R.

1989-03-01

Inland waters play a vital role in the life of the many small northern communities which depend in large measure on the provisions of the natural environment for their sustenance. These communities are therefore particularly vulnerable to changes in the ice regime of these waters, especially changes that are irregular. However, the north is also the site of much of Canada's hydroelectric power development and potential, developments that have a major influence on the ice regime of effected waters. As a contribution to the background information required for the necessary discussions and negotiations associated with such developments, the various aspects of the natural ice regime, the possible effects of hydroelectric development and operation on this regime, and its consequences, are briefly reviewed. The emphasis has been placed on changes that will likely be of most significance to northern communities in the bedrock-controlled country of the western Canadian Shield. The major direct, and in some circumstances life-threatening, impact of changes to the ice regime is on trafficability of the iceways that play such a vital role in the life of the communities. Hence particular emphasis has been placed on this aspect and on the formation of the slush and thin ice conditions that are the bane of over-ice travel and that are subject to unexpected changes by hydroelectric development and operation. To place these changes and their effects in some perspective, the nature of a hydroelectric development is also briefly described and an effort made to indicate the large costs incurred if these developments are restrained in their operation to avoid or mitigate some of the effects on the ice regime. 31 refs., 57 figs., 1 tab

Present status and perspectives for hydroelectric power in world

International Nuclear Information System (INIS)

Malquori, E.

1991-01-01

In the note a review of the present status and perspectives of hydroelectric power in the world is introduced. The present status regards, in chronological order, the last decade, as to say the works carried out in the 80ies whereas the perspectives regard the next twenty years as to say until 2010. The mentioned electric power potentiality refers to pure generation plants of great, middle and small size and to what could be achieved by already existing plants after changes and/or replacements and improvement of the machinery. Beside the figures regarding powers, great generation and pumping plants whose contribution has been and will be remarkable have been properly mentioned. The Italian contribution - civil works design, construction, and machinery supply - in the last hydroelectric development is briefly mentioned with particular reference to the developing countries

Micro hydroelectric power plant development in the west region of ...

African Journals Online (AJOL)

The objective of the present work is to characterise the state of ten Micro Hydroelectric Power Plants (MHPPs) installed in the west region of Cameroon, in preparation for their modernization. The work was carried out between January 2006 and December 2008. Each site was visited at least once a month. During these ...

Legal obstacles and incentives to the development of small scale hydroelectric power in West Virginia

Energy Technology Data Exchange (ETDEWEB)

None,

1980-05-01

The legal and institutional obstacles to the development of small-scale hydroelectric in West Virginia at the state level are described. The Federal government also exercises extensive regulatory authority in the area. The introductory section examines the dual regulatory system from the standpoint of the appropriate legal doctrine, the law of pre-emption, application of the law to the case of hydroelectric development, and concludes with an inquiry into the practical use of the doctrine by FERC. The development of small-scale hydroelectric energy depends on the selection of a site which will produce sufficient water power capacity to make the project economically attractive to a developer. In West Virginia, the right to use the flowing waters of a stream, creek, or river is appurtenant to the ownership of the lands bordering the watercourse. The lands are known as riparian lands. The water rights are known as riparian rights. Thus, the first obstacle a developer faces involves the acquisition of riparian lands and the subsequent right to the use of the water. The water law in West Virginia is discussed in detail followed by discussions on direct and indirect regulations; continuing obligations; financial considerations; and interstate organizations.

Power market liberalisation: an opportunity for the hydroelectricity?

International Nuclear Information System (INIS)

Loth, P.

2001-01-01

This article discusses the future of hydroelectricity in the light of the ongoing liberalisation of the European power market. Compared to fossil electricity, hydroelectricity is a renewable energy source, has a limited impact on the environment, is able to meet strong variations of power demand, but is a little bit more costly. Hydroelectric companies expect the introduction of a quality label for their product as well as the increasing awareness of consumers for environmental aspects to become strong incentives for them to subscribe on green energy despite its higher cost. The cost difference will also be partly reduced by the introduction of a pollution tax on fossil energy sources. Figures on hydroelectricity capacity production, currently and in the near future, in the countries surrounding the Alps are presented. As an example, the business strategy of a Swiss electricity utility is shortly described

76 FR 46840 - Time Extension To Accept Proposals, Select One Lessee, and Contract for Hydroelectric Power...

Science.gov (United States)

2011-08-03

... Lessee, and Contract for Hydroelectric Power Development at the Pueblo Dam River Outlet, a Feature of the... Lessee, and Contract for Hydroelectric Power Development at the Pueblo Dam River Outlet, a feature of the... considered timely only if it is received in the office of the Lease of Power Privilege Coordinator by or...

Small hydroelectric power development in India: a profile

International Nuclear Information System (INIS)

Bhattacharya, Partha

1993-01-01

Small hydroelectric power plants (SHPs) have a definite role to play in the contemporary energy scenario generally as a source for supplementing the electrical energy production and particularly in remote rural areas in meeting the energy requirements of isolated communities. SHPs practically do not produce any adverse impact.However, their success depends on the ingenuity of the planners and the designers, and more importantly the convection. Another dimension to the success is the participation and involvement of the beneficiaries of the project which are more relevant for the microhydro electric schemes in the remote areas. The major factor that influences the commercial success of the SHP is marketing. It should be given due emphasis. This necessitates the SHP development activities to be more pragmatic and relevant to the society needs; an approach which is programme-based, rather than a project-oriented, is needed. (author). 4 refs

Decentralized planning of hydroelectric power systems

International Nuclear Information System (INIS)

Binato, S.; Pereira, M.V.F.

1995-01-01

This paper discusses the application of marginal cost concepts to the expansion planning of hydroelectric systems. It is shown that the renumeration of hydroelectric plants should not be based on their energy production, as this leads to excessive revenues for the plant owner, and distorts the dimensioning of upstream reservoirs. In order to produce the adequate economic signals, it is necessary to separate the contributions of turbines and reservoirs. Examples from the Brazilian power system are presented and discussed

Development of an HTS hydroelectric power generator for the hirschaid power station

Energy Technology Data Exchange (ETDEWEB)

Fair, Ruben; Lewis, Clive; Eugene, Joseph; Ingles, Martin, E-mail: ruben.fair@converteam.co [Advanced Technology Group, Converteam, Rugby, CV21 1BD (United Kingdom)

2010-06-01

This paper describes the development and manufacture of a 1.7MW, 5.25kV, 28pole, 214rpm hydroelectric power generator consisting of superconducting HTS field coils and a conventional stator. The generator is to be installed at a hydro power station in Hirschaid, Germany and is intended to be a technology demonstrator for the practical application of superconducting technology for sustainable and renewable power generation. The generator is intended to replace and uprate an existing conventional generator and will be connected directly to the German grid. The HTS field winding uses Bi-2223 tape conductor cooled to about 30K using high pressure helium gas which is transferred from static cryocoolers to the rotor via a bespoke rotating coupling. The coils are insulated with multi-layer insulation and positioned over laminated iron rotor poles which are at room temperature. The rotor is enclosed within a vacuum chamber and the complete assembly rotates at 214rpm. The challenges have been significant but have allowed Converteam to develop key technology building blocks which can be applied to future HTS related projects. The design challenges, electromagnetic, mechanical and thermal tests and results are presented and discussed together with applied solutions.

Small scale hydroelectric power potential in Nevada: a preliminary reconnaissance survey

Energy Technology Data Exchange (ETDEWEB)

Cochran, G.F.; Fordham, J.W.; Richard, K.; Loux, R.

1981-04-01

This preliminary reconnaissance survey is intended to: develop a first estimate as to the potential number, location and characteristics of small-scale (50 kW to 15 MW) hydroelectric sites in Nevada; provide a compilation of various Federal and state laws and regulations, including tax and financing regulations, that affect small-scale hydroelectric development and provide information on sources of small-scale hydroelectric generation hardware and consultants/ contractors who do small scale hydroelectric work. The entire survey has been conducted in the office working with various available data bases. The site survey and site evaluation methods used are described, and data are tabulated on the flow, power potential, predicted capital expenditures required, etc. for 61 potential sites with measured flows and for 77 sites with derived flows. A map showing potential site locations is included. (LCL)

Miksova hydro-electric power plant is awaiting the fortieths

International Nuclear Information System (INIS)

Regula, E.

2004-01-01

In this paper the history of cascade of the Miksova hydro-electric power plants (HEPP, in the Slovak Republic) is described. This cascade of power plants consists of the following hydro-electric power plant: Hricov HEPP, Miksova HEPP, Povazska Bystrica HEPP and Nosice HEPP. In the Miksova HEPP are installed three turbo-sets with Kaplan turbine from the CKD Blansko and with synchronous hydro-alternator. Synchronous hydroelectric alternators have maximal output by 31.2 MW. Their installed output is together 93.6 MW and projected production of electric energy is 207 GWh annually. To the end 2003 Miksova HEPP during 40 years has produced together 7,161,342 MWh of electric energy

Hydroelectric power is green, although controversial

International Nuclear Information System (INIS)

Schulp, A.

2003-01-01

Hydroelectric power is worldwide the most important source of renewable energy. Still, it has some controversial aspects, which are briefly discussed in this article, focusing on Belgium and the Netherlands [nl

Report on the development perspectives of the hydroelectric production in France

International Nuclear Information System (INIS)

2006-03-01

This report, presented to the Ministry of the Economy, the Finances and the Industry, has been realized by the high ranking of the sustainable development of the Ministry. It presents the synthesis of the working group study at the second half year 2005 and proposes to the Ministry some practical actions to develop the hydroelectric production in France. After a presentation of the hydro electric-power challenges and potential, the author discusses the regulatory context of the hydroelectric power development, the conditions of this development and proposes some actions. (A.L.B.)

Hydroelectric power: Energy vector for progress and development; Wasserkraft: Energievektor fuer Fortschritt und Entwicklung

Energy Technology Data Exchange (ETDEWEB)

Meclot, B; Dupuy, M; Weis, H; Linari, A; Baril, M; Barlow, M; Cambi, M; Cullen, R; Genier, M; Germeau, J P; Madureira, C; Mellquist, P; Perea, A; Rost, M; Savey, P; Schiller, G; Talhull, A

1997-11-01

Hydroelectric power in the UNIPEDE member states has a share of about 18 percent, i.e. slightly less than the world average of 19 percent. Hydroelectric power has good future prospects: It is a renewable energy source and well suited for storage. (orig) [Deutsch] Wasserkraft ist eine Energie, die im Rahmen der von den Mitgliedslaendern der UNIPEDE genutzten Energieerzeugungsarten eine hohe Bedeutung hat. Sie repraesentiert durchschnittlich 18% der erzeugten elektrischen Energie, leicht unterhalb des weltweiten Durchschnitts (19%). Die Merkmale der Wasserkraft verdienen Aufmerksamkeit: Es handelt sich um eine erneuerbare Energie, die in grossen Mengen gespeichert werden kann und in der Energiewirtschaft eine grosse Rolle spielt. (orig.)

Access to realization of small hydroelectric power station in Republic of Macedonia

International Nuclear Information System (INIS)

Jakimova Filipovska, Nevenka

2001-01-01

In the paper an overview of the small-scale hydroelectric power plants is presented. The categorization groups of small to micro hydroelectric power plants by different countries are given. Also, the evaluation models of the projects for realization the small hydroelectric power plants are analysed. The aim of the paper is to stress the advantages of the small hydro projects and their implementation in Macedonia

improvement of hydroelectric power generation using pumped

African Journals Online (AJOL)

HOD

1, 4 DEPARTMENT OF SYSTEMS ENGINEERING, UNIVERSITY OF LAGOS, AKOKA, YABA, ... pumped storage system for generating hydroelectric power all year round. ... Power supply situation in Nigeria has no doubt ..... (objective functions), criteria for evaluation of control .... adsen H “Para eter esti ation in distributed.

Finland, Sweden and Austria doubled the share of hydroelectric power in EU

International Nuclear Information System (INIS)

Kangas, H.

1996-01-01

New EU countries Finland, Sweden and Austria increased the amount of hydroelectric power produced in EU in 1995 by more than 50 % compared to the year 1994. Especially Sweden and Austria are very dependent on hydroelectric power; the share of hydroelectric power is in Austria more than 70 % and even in Sweden it was nearly 50 %. The share of hydroelectric power in 1995 the EU region was 14 % of the total power demand. Due to the new EU countries the share of hydroelectric power of the total electric power demand, which would have decreased, increased by over 3 %. The increase of the electric power demand in Finland was lowest in the EU region, about 1.0 %, while it was in Greece 5.0 % and in Spain about 4.6 %. The share of nuclear power in the EU region was about 35 % in 1995. The most nuclear power dependent country in the EU was France there the share of nuclear power of the total electric power demand was 89 %. Both Finland and Sweden increased the production of back-pressure power generation in 1995. The share of back-pressure power generation in EU in 1995 was about 50 TWh which corresponds to some 1.5 % of the total electric power demand. About 50 % of the total electric power generation in EU was produced by condensing power generation. This production increased by 10 % compared to 1994. The netimport of electric power of EU increased by 80 % in Finland and Sweden, which are large importers of electric power outside the EU region

The business for power : hydro-electricity in southeastern British Columbia 1897-1997

International Nuclear Information System (INIS)

Mouat, J.

1997-01-01

The evolution and development of the hydroelectric power industry in southeastern British Columbia was chronicled by recounting the first hundred years of the West Kootenay Power and Light Electrical Utility. The utility's first generator produced electricity in the summer of 1898 when hydro-electric companies were a new phenomenon. The factors behind the success of the company, the personalities of the promoters and entrepreneurs that launched the company, the complex interplay of unique events and the social and political context that illustrate a fascinating process in which electricity became an integral part of everyday life, are described. Refs., tabs., figs

Obstacles to hydroelectric power. VDI conference on chances of hydroelectric power - conservation and environmental protection in conflict

International Nuclear Information System (INIS)

Sauer, H.D.

1994-01-01

Hydroelectric power is one of the most efficient energy sources and presents no CO 2 pollution problem, but there are obstacles as was shown at a VDI conference. Regional landscape conservation interests are in conflict with global environmental protection considerations. (orig.) [de

What are the stakes of the hydroelectric power? Supplement: report on the renewable energies

International Nuclear Information System (INIS)

2003-01-01

The document presents the regulation and the stakes concerning the hydroelectricity development in France: contribution to the greenhouse effect fight, the environment preservation, possible uses. It proposes then, a grid of a socio-economical evaluation of the projects. In this framework, the impacts of the little hydroelectric power and the possible corrective measures are described. (A.L.B.)

Environmental consequences of hydroelectric development: the role of facility size and type

International Nuclear Information System (INIS)

Gleick, P.H.

1992-01-01

The development of hydroelectric power throughout the world is receiving renewed attention as the economic, political, and environmental costs of conventional energy production rise. There is currently a perception that hydroelectricity has environmental and economic advantages over electricity produced by conventional energy technologies, but there is a paucity of information about the environmental impacts of hydroelectric facilities as a function of size and type. We characterize the environmental impacts of hydroelectric developments and quantify these impacts as a function of the size and type of project. Several unexpected conclusions arise from our analysis. For most hydroelectric facilities, size, as measured by installed capacity, is not necessarily a good indicator or the severity of environmental costs. For impacts such as land flooded and evaporative water lost, smaller facilities cause greater environmental disruptions per unit of energy produced than do larger facilities. (Author)

micro hydroelectric power plant development in the west region of ...

African Journals Online (AJOL)

DJFLEX

the west region of Cameroon. KEYWORDS: Problems, micro hydroelectric, funds, craftsmen, Cameroon. INTRODUCTION. Energy from Water streaming down the mountains has been exploited since antiquity to replace muscular effort (Bessac, 2000). The perfection of devices used results today in hydroelectric turbines,.

Changes in the state territory, systemic changes, the development of ecological thinking and the issues of the utilisation of hydroelectric power in Hungary

Directory of Open Access Journals (Sweden)

HAJDÚ Zoltán

2012-09-01

Full Text Available Each big river, including the Danube, makes a single system from their spring to their delta or estuary. Wherever we intervene into the system, this will be necessarily affect the whole of that. Thespillover effects are especially striking in the case of the lower reaches, in the Danube River in the Delta area. The utilisation of the hydroelectric power of the Danube River has been continuously on the agenda in the Hungarian areas since the turn of the 19th and 20th centuries, as an economic, planning, development and thenpolitical and environmental issue. The plans made before the World War I featured hydroelectric plants as the carriers of technical and scientific progress. World War I and the subsequent changes of the state borders swept these plans aside. Between the two world wars, the planning of hydroelectric power stations on the Danube wascontinued within the new state borders, two Hungarian governments and prime ministers of the time were fully committed to the construction of three power plants on the Danube River. After World War II, the hydroelectric plant planned on the Hungarian-Czechoslovakian border and its construction became a basic economic and, from the 1980s, an environmental issue. Finally, only a part of the planned hydroelectric power plant system was constructed, and the issue was not finally closed by specific interpretation of the international law. The Danube Strategy of the European Union, the programmes until 2020, the increase of the role of renewable anergies, the nuclear disaster in Japan, and the interests of international navigation filled the debate with new content. Thepossibility of the construction of hydroelectric power plants on the Danube River was “accidentally” put among the official documents of the government in power since 2010. The government declared it had nothing to do with the plans, and the debate has been going on since then.

The hydroelectric power market in the United States

International Nuclear Information System (INIS)

2002-01-01

The second-largest producer of hydroelectric power in the world is the United States, right after Canada. In the United States, 7.1 per cent of net electricity generation was attributed to hydroelectric power in 2000, which totalled 269 terawatt hours (TWh). Aging facilities, outdated technology in some facilities, a cumbersome licensing process, and increasing environmental demands from interest groups for the preservation of river systems and surrounding wildlife challenge the industry. Pacific Coast states, especially California, were faced with electric power shortages during the summer of 2001, due to low market prices, high power usage among consumers and drought. The problems with the deregulation of the electricity market were brought to light by these shortages. Legislation to restructure the electric power industry in 25 states had not been enacted as of January 2002. The purchase of more power from both Canada and the Mexico is being considered by the government of the United States, as is the creation of a national power grid to allow for power transmission throughout the country. The Canada-United States energy trade might be affected by such a move, and result in project construction opportunities for Canadian companies. Renewable energy sources must be responsible for the generation of 10 per cent of power generation levels by 2020, on a gradual basis as mandated by law. By 2005, New York City must purchase 10 per cent of its power from renewable energy sources, reaching 20 per cent by 2010. The repair and replacement of aging dam equipment, the development of advanced turbine technology to protect fish stocks and water quality, dam removal, the construction of power lines are all opportunities open to Canadian companies. 60 refs., 5 tabs

Amplification of Marzagao small scale hydroelectric power plant; Ampliacao da PCH de Marzagao

Energy Technology Data Exchange (ETDEWEB)

Zeller, A.R.; Porto, D.S.; Pinto, F.S. [Leme Engenharia, MG (Brazil); Melo, A.U.; Almeida, A.M.; Pereira, D.R. [Fertiligas Industria e Comercio Ltda., MG (Brazil)

1991-12-31

This work presents the modernization and power augmentation of Marzagao small scale hydroelectric power plant. In order that the costs of the project be compatible to the total of investments in the project, it was necessary the adoption of methodologies and time scales different from those used for large and medium scale hydroelectric power plants 5 figs.

[Hygienic characteristics of work conditions at large Hydroelectric Power Plants with mechanization and automatization].

Science.gov (United States)

Iakimova, L D

1997-01-01

The article touches upon hygienic problems associated with mechanization and automation of major hydroelectric power stations. The authors present criteria to evaluate work conditions of the main occupations participating in the technologic process of hydroelectric power stations.

The little hydro-electricity: the boosting?

International Nuclear Information System (INIS)

Brunier, S.; Najac, C.; Roussel, A.M.; Claustre, R; Baril, D.; Marty, D.; Lefevre, P.; Arnould, M.

2007-01-01

The hydraulic energy could be easily developed in France to reach the objectives of the european directive on the renewable energies. This development can be assured by the construction of power plants perfectly integrated in their environment and respecting the rivers and assured also by the increase of the capacities of existing power plants as it is allowing by the new regulations. This document presents the place and the capacity of the hydro-electricity in France, the implementing of a green electricity, the existing regulation, the river biological continuation, the ecosystems and the little hydro-electricity and the example of the hydro-electric power plant of Scey-sur-Saone. (A.L.B.)

77 FR 38796 - Georgia Power Company; Bartletts Ferry Hydroelectric Project; Notice of Revised Restricted...

Science.gov (United States)

2012-06-29

... Alabama] Georgia Power Company; Bartletts Ferry Hydroelectric Project; Notice of Revised Restricted... by issuance of a new license for the Bartletts Ferry Hydroelectric Project No. 485. The programmatic... Hydroelectric Project. On June 14, 2012, the Kialegee Tribal Town requested a revision to the restricted service...

Improvement of hydroelectric power generation using pumped ...

African Journals Online (AJOL)

By principle, hydroelectric power generation relies on the law of conservation of energy where kinetic energy that resulted from the movement of the mass of water from the river is translated into electr icity, the quantum of which depends on systemic variables viz: plant efficiency, volumetric water flow through the turbine and ...

18 CFR 292.208 - Special requirements for hydroelectric small power production facilities located at a new dam or...

Science.gov (United States)

2010-04-01

... for hydroelectric small power production facilities located at a new dam or diversion. 292.208 Section... requirements for hydroelectric small power production facilities located at a new dam or diversion. (a) A hydroelectric small power production facility that impounds or diverts the water of a natural watercourse by...

77 FR 14516 - Alabama Power Company, Martin Dam Hydroelectric Project; Notice of Proposed Revised Restricted...

Science.gov (United States)

2012-03-12

... Power Company, Martin Dam Hydroelectric Project; Notice of Proposed Revised Restricted Service List for... for inclusion in, the National Register of Historic Places at the Martin Dam Hydroelectric Project...)). The Commission's responsibilities pursuant to section 106 for the Martin Dam Hydroelectric Project...

Hydroelectricity at the crossroad: let us give a new momentum to the first renewable energy. White paper on hydroelectricity

International Nuclear Information System (INIS)

2017-01-01

This publication first indicates some data which illustrate the role, importance and development perspectives of hydroelectricity in terms of energy production and in terms of jobs. It outlines that, due to its high adaptation capacity and flexibility, hydroelectricity is an important factor for territory development, that it has a major role in energy supply safety, in the energy mix, and in decentralised energy production. It proposes an overview of the different types of hydroelectric installations: reservoirs for a flexible production and supply safety, run of river hydro systems for a continuous and renewable energy production, pumped storage power stations for mass storage of electric energy. It proposes an overview of assets of hydroelectric energy: implementation of energy transition on the long term, development of an industrial sector of excellence, a responsible and supportive energy, compatibility between hydroelectricity, biodiversity and water usages. Proposals are then formulated to give electricity a new momentum: a new orientation of national and European policies for a better global consistency, a new orientation of economic choices and tax policy as incentives to maintenance and development of the hydroelectric sector, and a fair compensation of services provided to the electric power system

Feasibility study for Boardman River hydroelectric power. Final report

Energy Technology Data Exchange (ETDEWEB)

None

1979-02-22

The feasibility of generating additional hydroelectric power from five consecutive existing dams located on the Boardman River in Grand Traverse County and Traverse City, Michigan, was investigated. The potential hydropower production capabilities, in terms of base load power and peak load power, the legal-institutional-environmental constraints, and the economic feasibility, including capital investment, operating costs and maintenance costs, were evaluated for each of the five dam sites individually and as a series of co-dependent facilities. The impact of installing fish passages at each site was analyzed separately. The feasibility assessment utilized the present worth analytical method, considering revenue based on thirty mills/kWh for power, 0.4% general economy escalation rate, and a 6% net income to the municipal utility. The sensitivity of fuel costs increasing at a different rate than the general price-escalation was tested by allowing the increase in fuel costs to vary from 3 to 8% per year. Assuming fuel costs increase at the same rate as the general economy, it is feasible to update, retrofit, renovate, and install hydroelectric generating capacity at Sabin, Boardman and Brown Bridge. Rehabilitation of Union Street and Keystone is also feasible but somewhat less attractive. Operating the dams as a co-dependent system has environmental advantages and can provide additional revenue through peak load power rates. A development plan to implement the above is outlined utilizing an ownership arrangement whereby Grand Traverse County provides easements for Sabin and Boardman Dams. The plan calls for operation of the system by Traverse City.

18 CFR 16.19 - Procedures for an existing licensee of a minor hydroelectric power project or of a minor part of...

Science.gov (United States)

2010-04-01

... existing licensee of a minor hydroelectric power project or of a minor part of a hydroelectric power....19 Procedures for an existing licensee of a minor hydroelectric power project or of a minor part of a hydroelectric power project with a license not subject to sections 14 and 15 of the Federal Power Act. (a...

Production costs: U.S. hydroelectric power plants, 4th Edition

International Nuclear Information System (INIS)

Anon.

1993-01-01

The book provides 1991 operation and maintenance expenses for over 800 conventional and pumped-storage hydroelectric power plants. Report shows operator and plant name, plant year-in-service, installed capacity, 1991 net generation, O ampersand M expenses, total production costs and current plant capitalization. Fifty eight percent of the utility-owned hydroelectric plants in the US are covered by this report. Data diskette provides additional capital and production cost accounts and number of employees for each plant

78 FR 62361 - Green Mountain Power Corporation; Vermont; Otter Creek Hydroelectric Project; Notice of Proposed...

Science.gov (United States)

2013-10-21

... Power Corporation; Vermont; Otter Creek Hydroelectric Project; Notice of Proposed Restricted Service... issuance of a new license for the Otter Creek Hydroelectric Project No. 2558. The programmatic agreement... Agreement would be incorporated into any Order issuing a license. Green Mountain Power Corporation, as...

76 FR 72196 - CRD Hydroelectric LLC; Western Minnesota Municipal Power Agency; Notice of Application for...

Science.gov (United States)

2011-11-22

... Hydroelectric LLC; Western Minnesota Municipal Power Agency; Notice of Application for Transfer of License, and Soliciting Comments and Motions To Intervene On October 14, 2011, CRD Hydroelectric LLC (transferor) and... Red Rock Hydroelectric Project, No. 12576, located on the Des Monies River in Marion County, Iowa...

Ecological impact from large constructions of hydroelectric power plants in Parana River, Brazil

International Nuclear Information System (INIS)

Bonetto, Argentino A.

1992-01-01

An analysis over environmental impacts on Parana River as a result of the hydroelectric power plants construction is presented. Hydroelectric dams, also including the planned ones, are showing during the explanation, and biologic aspects are discussed. 30 refs., 4 figs., 2 tabs

Using fire dynamics simulator to reconstruct a hydroelectric power plant fire accident.

Science.gov (United States)

Chi, Jen-Hao; Wu, Sheng-Hung; Shu, Chi-Min

2011-11-01

The location of the hydroelectric power plant poses a high risk to occupants seeking to escape in a fire accident. Calculating the heat release rate of transformer oil as 11.5 MW/m(2), the fire at the Taiwan Dajia-River hydroelectric power plant was reconstructed using the fire dynamics simulator (FDS). The variations at the escape route of the fire hazard factors temperature, radiant heat, carbon monoxide, and oxygen were collected during the simulation to verify the causes of the serious casualties resulting from the fire. The simulated safe escape time when taking temperature changes into account is about 236 sec, 155 sec for radiant heat changes, 260 sec for carbon monoxide changes, and 235-248 sec for oxygen changes. These escape times are far less than the actual escape time of 302 sec. The simulation thus demonstrated the urgent need to improve escape options for people escaping a hydroelectric power plant fire. © 2011 American Academy of Forensic Sciences.

Hydroelectric power plant Irape - viability studies; Usina hidroeletrica Irape - estudos de viabilidade

Energy Technology Data Exchange (ETDEWEB)

Serran, F.P.; Assumpcao, M.G.

1994-06-01

The socio-environmental analysis of the feasibility studies from Irape Hydroelectric Power Plant in Minas Gerais State-Brazil was described including three main questions: the regional insertion mentioning the social conflicts, the social communication program and the basic strategic; the reduction of water volume downstream; the development of programs on the Basic Project Stage.

Production capacity of equipment for medium and large hydroelectric power plant in China

Energy Technology Data Exchange (ETDEWEB)

Huang Shenyang [Ministry of Electric Power, Beijing (China). Bureau of Electric Power Machinery

1995-07-01

This document presents an overview on the production capacity of equipment for medium and large hydroelectric power plant in China. The document approaches general aspects, production capability and testing facilities related to Francis, Kaplan, tubular and impulse hydroelectric generating sets, and the introduction of main manufacturers as well.

New erection program of the hydroelectric power plant Beznau. Das Neubauprojekt des hydraulischen Kraftwerkes Beznau

Energy Technology Data Exchange (ETDEWEB)

Bretscher, B; Hauenstein, W [NOK Nordostschweizerische Kraftwerke AG, Baden (Switzerland)

1992-02-21

The projected hydroelectric power plant at Beznau on the Aare river will produce about 43% more electric power than the present hydroelectric power plant. The water level and the buildings in the Aare will remain unchanged, so that the enviromental impact will be relativley slight. The project is in accordance with the building permit so that no adaptations on modifications will be required. (orig.).

76 FR 51961 - Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility Trust No. 1, Topsham Hydro...

Science.gov (United States)

2011-08-19

... On August 3, 2011, Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility (Trust No. 1... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 4784-082] Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility Trust No. 1, Topsham Hydro Partners Limited Partnership...

What share for hydroelectricity in France?

International Nuclear Information System (INIS)

Bongrand, Th.; Bouvier, E.; Francois, M.; Martin, J.M.; Tardieu, B.; Vogien, M.; Cruchon, Ph.; Miquel, J.; Gariel, A.; Levasseur, L.; Mallet, J.P.

2004-01-01

This document gathers 10 presentations (articles) given at the 2. meeting on hydroelectricity, held at Grenoble on May 2004. The papers present some examples of realizations in the domain of small-hydropower, the R and D in progress and some recent advances in hydraulic engineering, the safety and quality aspects, and the environmental impacts and sustainable development of hydroelectric power: 1 - examples of small hydropower plants in France and in progress at SOGREAH (T. Bongrand); 2 - the pico-power plants implemented on drinkable water networks (E. Bouvier); 3 - MINI-AQUA: the mini-hydro solution (M. Francois); 4 - Grenoble and the Alpine valley, pole of hydraulic and hydroelectric competences (J.M. Martin); 5 - history and R and D (B. Tardieu); 6 - advances in engineering for a forefront industry (M. Vogien); 7 - improvement of hydraulic safety (P. Cruchon); 8 - a ISO 14001 certification experience in the domain of hydroelectricity (A. Gariel); 9 - the Rhone river development, reserved flow rate and sustainable development (L. Levasseur); 10 - small hydropower: impact and integration (J.P. Mallet). (J.S.)

Environmental impact analysis of the hydroelectric power development sheme in the River Grunnaai in Seljord municipality, Telemark

International Nuclear Information System (INIS)

Muniz, I.P.; Bendiksen, E.; Erikstad, L.; Reitan, O.

1997-01-01

This report discusses the possible environmental consequences of a planned hydroelectric power development of the river Grunnaai, Norway. The consequences are found to be small, provided the proper counter measures are taken. Without counter measures, there may be moderate consequences on fish populations and botanical conditions, directly dependent on the changed water flow. The greatest value of the area concerned lies in its unspoiled wilderness character. There are extensive lists of birds and mammals and plant species registered in the river valley. 51 refs., 7 figs., 4 tabs

Feasibility determination of low head hydroelectric power development at existing sites: Mousam River Project

Energy Technology Data Exchange (ETDEWEB)

1979-06-01

The technical and economic feasibility of low head hydroelectric power development at existing sites along the Mousam River in southeastern Maine was studied. The following areas were investigated: determination of available energy; development of restoration concepts; environmental studies; historical and archeological studies; assessment of civil construction requirements; geotechnical and geologic assessment of existing dams; assessment of turbine alternatives; assessment of generator and utility interface alternatives; economic analysis; and restoration concept evaluation and selection. The results of the hydropower evaluation showed that: of the seven sites evaluated, only four can be considered economically feasible for refurbishment at this time; the use of used and/or rebuilt equipment is more economically attractive than new equipment; the cost of equipment at each site was of the same order as the cost of the dam reconstruction; and the cost of fuel prices will be the determining feature of whether the sites should be reconstructed.

Feasibility, Design and Construction of a Small Hydroelectric Power Generation Station as a Student Design Project.

Science.gov (United States)

Peterson, James N.; Hess, Herbert L.

An undergraduate capstone engineering design project now provides hydroelectric power to a remote wilderness location. Students investigated the feasibility of designing, building, and installing a 4kW hydroelectric system to satisfy the need for electric power to support the research and teaching functions of Taylor Ranch, a university facility…

77 FR 38796 - Alabama Power Company; Holt Hydroelectric Project; Notice of Revised Restricted Service List for...

Science.gov (United States)

2012-06-29

... Power Company; Holt Hydroelectric Project; Notice of Revised Restricted Service List for a Programmatic... Hydroelectric Project No. 2203. The programmatic agreement, when executed by the Commission, the Alabama SHPO...

Open system architecture for condition based maintenance applied to a hydroelectric power plant

Energy Technology Data Exchange (ETDEWEB)

Amaya, E.J.; Alvares, A.J. [University of Brasilia (UnB), DF (Brazil). Mechanical and Mechatronic Dept.], Emails: eamaya@unb.br, alvares@AlvaresTech.com; Gudwin, R.R. [State University of Campinas (UNICAMP), SP (Brazil). Computer Engineering and Industrial Automation Dept.], E-mail: gudwin@dca.fee.unicamp.br

2009-07-01

The hydroelectric power plant of Balbina is implementing a condition based maintenance system applying an open, modular and scalable integrated architecture to provide comprehensive solutions and support to the end users like operational and maintenance team. The system called SIMPREBAL (Predictive Maintenance System of Balbina) is advocate of open standards, in particular through collaborative research programmers. In the developing is clearly understands the need for both, industry standards and a simple to use software development tool chain, supporting the development of complex condition based maintenance systems with multiple partners. The Open System Architecture for Condition Based Maintenance (OSA-CBM) is a standard that consider seven hierarchic layers that represent a logic transition or performed data flow from the data acquisition layer, through the intermediates layers as signal processing, condition monitor, health assessment, prognostics and decision support, to arrive to the presentation layer. SIMPREBAL is being implementing as an OSA-CBM software framework and tool set that allows the creation of truly integrated, comprehensive maintenance solutions through the internet. This paper identifies specific benefits of the application of the OSA-CBM in comprehensive solutions of condition based maintenance for a hydroelectric power plant. (author)

Small-scale hydroelectric power in the Pacific Northwest: new impetus for an old energy source

Energy Technology Data Exchange (ETDEWEB)

1980-07-01

Energy supply is one of the most important issues facing Northwestern legislators today. To meet the challenge, state legislatures must address the development of alternative energy sources. The Small-Scale Hydroelectric Power Policy Project of the National Conference of State Legislators (NCSL) was designed to assist state legislators in looking at the benefits of one alternative, small-scale hydro. Because of the need for state legislative support in the development of small-scale hydroelectric, NCSL, as part of its contract with the Department of Energy, conducted the following conference on small-scale hydro in the Pacific Northwest. The conference was designed to identify state obstacles to development and to explore options for change available to policymakers. A summary of the conference proceedings is presented.

A contribution to the methods of determining the optimal exploitation of hydraulically related hydroelectric power plants of different owners

International Nuclear Information System (INIS)

Gievski, Igor

2013-01-01

unique technical-technological entities, has resulted in the emergence of new and complicated problems regarding the exploitation of the electric energy systems. The reason for this is that the different owners of the specific parts of these systems (production, transmittal, distribution) often and naturally have contradictory interests. On the other hand, the power distribution in different countries (as well as in our country) involves the possession of so-called distributive plants, so, in addition to the license for power distribution and supply, the new distributive system owners have obtained a license to produce electricity in the small power plants that are currently directly connected to their distributive systems. They, moreover, use their right to apply for tenders for the construction of small hydroelectric power plants invited by the governments of the relevant countries. Therefore, in many cases, the companies that win the tenders are entitled to constructing new small hydroelectric power plants, whereby they become significant actors in the process of generating renewable electricity in their hydroelectric power plants. This all further complicates the process of producing electricity in the electric power systems. The mathematical modeling of the problems related to the joint work of two or more hydroelectric power plants on the same watercourse has always posed a major problem because this most often boils down to the problem in the area of un linear programing with un linear function of the objective and un linear restrictions both in the form of equations and non-equations. As more attempts are made to make the obtained results more compatible with the reality and of greater use, so does the need increase to make the mathematical model more complicated and thus make its solution more difficult. Therefore, numerous methods based on different models regarding their complexity, depending on the desired outcome, have been developed worldwide. Most authors

Problems of hydroelectric development at existing dams: an analysis of institutional, economic, and environmental restraints in Pennsylvania, New Jersey, and Maryland

Energy Technology Data Exchange (ETDEWEB)

Taylor, R.J.; Green, L.L.

1979-04-01

The methodology that has been developed to analyze the impact of possible government actions on the development of small-scale hydroelectric power in the United States is described. The application of the methodology to a specific region of the United States is also described. Within the Pennsylvania-New Jersey-Maryland (PJM) region, the methodology has been used to evaluate the significance of some of the existing institutional and economic constraints on hydroelectric development at existing dams. The basic process for the analysis and evaluation is estimation of the hydroelectric energy that can be developed for a given price of electricity. Considering the present constraints and a geographical region of interest, one should be able to quantify the potential hydroelectric energy supply versus price. Estimates of how the supply varies with possible changes in governmental policies, regulations, and actions should assist the government in making decisions concerning these governmental functions relative to hydroelectric development. The methodology for estimating the hydroelectric supply at existing dams is included.

An ecological solution in power development strategy: hydroelectric Power

International Nuclear Information System (INIS)

Ionescu, S.; Teodorescu, D.

1994-01-01

One of the fundamental criteria in establishing the power development strategy is represented by the environmental protection. Besides increasing the power efficiency for users, the hydro power stands for a handy alternative to generate thermal power. Comparatively, if hydro power is properly planed and developed, it could allow conservation of fossil fuel resources (as it makes use of a renewable resources) and avoids air and water pollution and in addition would lead to certain positive effects upon the natural and anthropic environment (flood routing, optimizes the power supply-demand relationship, and so on). By making use of the data available in the international specific literature and the information on the power development strategy in Romania the effects incurred by hydro power are both qualitatively and quantitatively emphasized as compared to alternative power generation by fossil fuel combustion. The proposal is made to adopt certain law regulations as well as a methodology to evaluate the general efficiency of various types of power generating devices suiting the particular conditions of Romania and taking into account the social cost as well as environmental effects. Hence a power development strategy could be undertaking at the national level provided it meets the requirements of both power system and environment protection. (Author)

76 FR 25330 - Georgia Power Company; Project No. 485-063-Georgia and Alabama, Bartletts Ferry Hydroelectric...

Science.gov (United States)

2011-05-04

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Georgia Power Company; Project No. 485-063--Georgia and Alabama, Bartletts Ferry Hydroelectric Project; Notice of Proposed Restricted Service... Ferry Hydroelectric Project. The Programmatic Agreement, when executed by the Commission, the Georgia...

EDM - A model for optimising the short-term power operation of a complex hydroelectric network

International Nuclear Information System (INIS)

Tremblay, M.; Guillaud, C.

1996-01-01

In order to optimize the short-term power operation of a complex hydroelectric network, a new model called EDM was added to PROSPER, a water management analysis system developed by SNC-Lavalin. PROSPER is now divided into three parts: an optimization model (DDDP), a simulation model (ESOLIN), and an economic dispatch model (EDM) for the short-term operation. The operation of the KSEB hydroelectric system (located in southern India) with PROSPER was described. The long-term analysis with monthly time steps is assisted by the DDDP, and the daily analysis with hourly or half-hourly time steps is performed with the EDM model. 3 figs

Hydroelectricity: an asset for a successful energy transition in France

International Nuclear Information System (INIS)

Galland, J.C.; Vincent, E.

2013-01-01

France's national debate on energy transition has served as a reminder that hydroelectric power plays a significant role in French electricity production. With installed power totalling 25400 MW at end 2012 (the second largest in Europe), France's hydroelectric plants produced 63.8 TWh last year (the third largest in Europe), almost 12% of total output. It is France's second largest means of producing electricity and it represents more than 80% of production of renewable energy. A source of energy developed a long time ago, thus benefiting from technological maturity, hydroelectricity can be produced in large quantity at the heart of France's regions, while also rendering indispensable service for the equilibrium of the French electricity system by compensating the intermittency of other renewable energy sources. The production costs of hydroelectric power are the lowest among all power generation technologies. (authors)

Measurents of natural radioactivity in an underground hydroelectric power plant

International Nuclear Information System (INIS)

Malvicini, Andrea; Esposito, PierLuigi; Depiesse, Danielle

2008-01-01

In underground working places, especially when ventilation is not properly regulated, large amounts of natural radioactivity can be found. This can give rise to potential exposures of non-negligible magnitude. Direct measurements of gamma radiation and radon were carried out during excavation works for the construction of an hydroelectric plant in the north of Italy. After the construction of the plant, in order to reduce radon concentrations and to improve ventilation effectiveness, the main entry gate was motorized and automated. Then, in order to find the optimal speed for the fans located in the galleries and in the power plant, radon and airflow velocity were measured. Correlation data between airflow and radon concentrations were found. An automatic regulation system has been set up using air velocity detectors and slightly modifying the software for the control and regulation of the power plant. Measurements must be made in order to identify radon sources and evaluate quantitative contributions as a function of ventilation. Underground hydroelectric plants are provided with entry galleries as well as secondary galleries from which radon coming out from the soil and the walls can exhale in quantities that depend on the contents of 226 Ra in the rocks and in the building materials. Other radon sources are the water coming out from the walls of the galleries and the water in the deep well located at the bottom of the power plant. Geological studies and mathematical models are useful means for the analysis of the relative contributions of the main sources as well as for the prediction of the effects deriving from modifications of the hydroelectric plant ventilation system or resulting from other important structural changes. (author)

The impact of climate change on hydro-electricity generation

Energy Technology Data Exchange (ETDEWEB)

Musy, A.; Music, B.; Roy, R. [Ouranos, Montreal, PQ (Canada)

2008-07-01

Hydroelectricity is a clean and renewable energy source for many countries, and is expected to play an important role in future energy supplies. However, the impact of climatic change on hydroelectricity resources is not yet understood. This study provided a critical review of current methods used to determine the potential impacts of climatic change on hydroelectric power production. General circulation models (GCMs) are used to predict future climate conditions under various greenhouse gas (GHG) emissions scenarios. Statistical techniques are then used to down-scale GCM outputs to the appropriate scales needed for hydrological models, which are then used to simulate the effects of climatic change at regional and local scales. Outputs from the models are then used to develop water management models for hydroelectric power production. Observed linear trends in annual precipitation during the twentieth century were provided. The theoretical advantages and disadvantages of various modelling techniques were reviewed. Risk assessment strategies for Hydro-Quebec were also outlined and results of the study will be used to guide research programs for the hydroelectric power industry. refs., tabs., figs.

The impact of climate change on hydro-electricity generation

International Nuclear Information System (INIS)

Musy, A.; Music, B.; Roy, R.

2008-01-01

Hydroelectricity is a clean and renewable energy source for many countries, and is expected to play an important role in future energy supplies. However, the impact of climatic change on hydroelectricity resources is not yet understood. This study provided a critical review of current methods used to determine the potential impacts of climatic change on hydroelectric power production. General circulation models (GCMs) are used to predict future climate conditions under various greenhouse gas (GHG) emissions scenarios. Statistical techniques are then used to down-scale GCM outputs to the appropriate scales needed for hydrological models, which are then used to simulate the effects of climatic change at regional and local scales. Outputs from the models are then used to develop water management models for hydroelectric power production. Observed linear trends in annual precipitation during the twentieth century were provided. The theoretical advantages and disadvantages of various modelling techniques were reviewed. Risk assessment strategies for Hydro-Quebec were also outlined and results of the study will be used to guide research programs for the hydroelectric power industry. refs., tabs., figs

75 FR 62531 - Alabama Power Company; Project No. 349-150-Alabama Martin Dam Hydroelectric Project; Notice of...

Science.gov (United States)

2010-10-12

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Alabama Power Company; Project No. 349-150--Alabama Martin Dam Hydroelectric Project; Notice of Proposed Restricted Service List for a... the Martin Dam Hydroelectric Project. The Programmatic Agreement, when executed by the Commission, the...

Cross currents : hydroelectricity and the engineering of northern Ontario

Energy Technology Data Exchange (ETDEWEB)

Manore, J.L. [Calgary Univ., AB (Canada)

1999-05-01

The history of hydroelectric development in northern Ontario was reviewed and analysed with special emphasis on the developments along the Mattagami and Abitibi Rivers. The objective was to examine the important factors that shaped modern hydroelectric development in Canada. System builders, the privately owned Nesbitt Thomson Company, the publicly owned Hydro Electric Power Corporation of Ontario and the eventual evolution of the single power system under Ontario Hydro are chronicled. Broad historical themes such as the technological impacts, regionalism, indigenous rights, plus environmental and economic issues are examined, in addition to an appreciation of the importance of electricity in the manufacturing sector of Ontario, the impact of hydroelectric development on the northern environment and on the northern First Nations, who rely on rivers for their subsistence. Until fairly recently, government policies and interpretations of law often excluded the recognition of Aboriginal uses of river systems, thereby limiting First Nations` peoples ability to practice traditional ways of life. In essence, the book is an account of how the northeastern power system in Ontario shaped the social, political and natural environments and how the development of northeastern power sources by southern power developers shaped the regional interactions between Ontario`s north and south. refs., figs.

Cross currents : hydroelectricity and the engineering of northern Ontario

International Nuclear Information System (INIS)

Manore, J.L.

1999-01-01

The history of hydroelectric development in northern Ontario was reviewed and analysed with special emphasis on the developments along the Mattagami and Abitibi Rivers. The objective was to examine the important factors that shaped modern hydroelectric development in Canada. System builders, the privately owned Nesbitt Thomson Company, the publicly owned Hydro Electric Power Corporation of Ontario and the eventual evolution of the single power system under Ontario Hydro are chronicled. Broad historical themes such as the technological impacts, regionalism, indigenous rights, plus environmental and economic issues are examined, in addition to an appreciation of the importance of electricity in the manufacturing sector of Ontario, the impact of hydroelectric development on the northern environment and on the northern First Nations, who rely on rivers for their subsistence. Until fairly recently, government policies and interpretations of law often excluded the recognition of Aboriginal uses of river systems, thereby limiting First Nations' peoples ability to practice traditional ways of life. In essence, the book is an account of how the northeastern power system in Ontario shaped the social, political and natural environments and how the development of northeastern power sources by southern power developers shaped the regional interactions between Ontario's north and south. refs., figs

EPRI releases strategic plan for hydroelectric R and D

International Nuclear Information System (INIS)

Fickett, A.P.

1993-01-01

The Electric Power Research Institute has published a report identifying important research needs and issues in the hydroelectric industry. The report is based on results from a survey of representatives of the 1992 North American hydroelectric community. EPRI conducted the survey to expand upon recommendations of the North American Hydroelectric R ampersand D Forum and to develop EPRI's agenda. The report, an EPRI Strategy for Hydropower Research and Development: Rethinking our Water Resource Management Strategies, outlines an agenda for improving the use of water resources and expanding hydroelectric production at existing dams. It also proposes a new, expanded EPRI strategy within the context of the future energy needs of the US and the North American hydro research agenda

Greenhouse gas emissions from hydroelectric reservoirs

International Nuclear Information System (INIS)

Rosa, L.P.; Schaeffer, R.

1994-01-01

In a recent paper, Rudd et al. have suggested that, per unit of electrical energy produced, greenhouse-gas emissions from some hydroelectric reservoirs in northern Canada may be comparable to emissions from fossil-fuelled power plants. The purpose of this comment is to elaborate these issues further so as to understand the potential contribution of hydroelectric reservoirs to the greenhouse effect. More than focusing on the total budget of carbon emissions (be they in the form of CH 4 or be they in the form of CO 2 ), this requires an evaluation of the accumulated greenhouse effect of gas emissions from hydroelectric reservoirs and fossil-fuelled power plants. Two issues will be considered: (a) global warming potential (GWP) for CH 4 ; and (b) how greenhouse-gas emissions from hydroelectric power plants stand against emissions from fossil-fuelled power plants with respect to global warming

Constraints of micro hydroelectric power plants in the west region of ...

African Journals Online (AJOL)

The objective of the present work is to study the constraints of Micro Hydroelectric Power Plants (MHPPs) installed in the West Region of Cameroon. The study was carried out between January 2005 and December 2008 and is related to water conveyance structures, production facilities; transportation and distribution ...

Feasibility study on the demonstrative test on the hybrid mini hydroelectric power generation technology. 2; Hybrid gata mini suiryoku hatsuden gijutsu ni kakawaru jissho shiken kanosei chosa. 2

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

A study was made for the purpose of electrification of unelectrified zones of the mountainous areas in developing countries using extremely small hydroelectric power facilities. The target for this project is a development of a micro hydroelectric power system with a size of about 5kW, which is estimated regarding that 1 village has 80 houses and each house needs electricity of 60W. In the study, the low-head system using a weir of irrigation channels in Subang pref. of West Java state was selected by the evaluation of access, stability of flow rate, natural conditions, etc. The hydroelectric power plant is of a flow-in method in which water is taken from the left bank and is injected/discharged to the downstream of the left bank. As the hybrid complementary power source, hybrid battery with a two-hour charging time at peak and a capacity of 3.5kWh was considered. When estimating the construction cost of the hybrid micro hydroelectric power system and equalizing by durable years, the operational cost per kW is 15 times higher than the benefits which local people receive. It was judged to be difficult to say that the micro hydroelectric power system is economically feasible. It was predicted that the financial profit during the demonstrative test is good, according to a trial calculation of income from power rates and the operational cost. 18 refs., 90 figs., 53 tabs.

76 FR 18747 - Teton Power Funding, LLC; Topsham Hydro Partners Limited Partnership; Topsham Hydroelectric...

Science.gov (United States)

2011-04-05

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 4784-081] Teton Power Funding, LLC; Topsham Hydro Partners Limited Partnership; Topsham Hydroelectric Generating Facility Trust No. 1; Brown Bear Power, LLC; Notice of Application for Partial Transfer of License, and Soliciting...

78 FR 28826 - Lakeport Hydroelectric Associates, Lakeport Hydroelectric Corporation, Lakeport Hydroelectric One...

Science.gov (United States)

2013-05-16

... Hydroelectric Associates, Lakeport Hydroelectric Corporation, Lakeport Hydroelectric One, LLC; Notice of..., Lakeport Hydroelectric Associates and Lakeport Hydroelectric Corporation (transferors) and Lakeport Hydroelectric One, LLC (transferee) filed an application for the transfer of license for the Lakeport Project...

Report on the development perspectives of the hydroelectric production in France; Rapport sur les perspectives de developpement de la production hydroelectrique en France

Energy Technology Data Exchange (ETDEWEB)

NONE

2006-03-15

This report, presented to the Ministry of the Economy, the Finances and the Industry, has been realized by the high ranking of the sustainable development of the Ministry. It presents the synthesis of the working group study at the second half year 2005 and proposes to the Ministry some practical actions to develop the hydroelectric production in France. After a presentation of the hydro electric-power challenges and potential, the author discusses the regulatory context of the hydroelectric power development, the conditions of this development and proposes some actions. (A.L.B.)

To Construction of Expendable Hydroelectric Power Station Characteristics and Their Timely Correction

Directory of Open Access Journals (Sweden)

V. Kh. Nasibov

2006-01-01

Full Text Available The paper provides a technique of analytical construction of expendable characteristics and characteristics of a relative gain of water charge at a hydroelectric power station. Planning method and regression analysis have been applied for the construction of these characteristics.

Fish passage hydroelectric power plant Linne, Netherlands. Didson measurements

International Nuclear Information System (INIS)

Van Keeken, O.A.; Griffioen, A.B.

2011-11-01

The hydroelectric power plant in the Dutch Maas River near Linne has a fish deflection and passage system. For this study, two evenings in the months of August and September 2011 were dedicated to examining the extent to which fish approached and used the fish passage system. To establish the swimming behavior of the fish, a high-resolution sonar (DIDSON) was used, which generates moving images of fish in turbid waters, to study their behavior. [nl

Assessment and statistics of Brazilian hydroelectric power plants: Dam areas versus installed and firm power

International Nuclear Information System (INIS)

Caetano de Souza, Antonio Carlos

2008-01-01

The Brazilian relief, predominantly composed by small mountains and plateaus, contributed to formation of rivers with high amount of falls. With exception to North-eastern Brazil, the climate of this country are rainy, which contributes to maintain water flows high. These elements are essential to a high hydroelectric potential, contributing to the choice of hydroelectric power plants as the main technology of electricity generation in Brazil. Though this is a renewable source, whose utilized resource is free, dams must to be established which generates a high environmental and social impact. The objective of this study is to evaluate the impact caused by these dams through the use of environmental indexes. These indexes are ratio formed by installed power with dam area of a hydro power plant, and ratio formed by firm power with this dam area. In this study, the greatest media values were found in South, Southeast, and Northeast regions respectively, and the smallest media values were found in North and Mid-West regions, respectively. The greatest encountered media indexes were also found in dams established in the 1950s. In the last six decades, the smallest indexes were registered by dams established in the 1980s. These indexes could be utilized as important instruments for environmental impact assessments, and could enable a dam to be established that depletes an ecosystem as less as possible. (author)

Private affairs [Canon del Pato hydroelectric project

International Nuclear Information System (INIS)

Moxon, S.

1997-01-01

The privatisation of the electric power industry in Peru has caused growth in its hydroelectric generation capacity. Increased interest in hydroelectric power, based on economic considerations, had led to decision on upgrading the two main hydropower plants which will provide almost 100 MW of extra capacity over a three year period, and provide competitively priced electric power. (UK)

Case study analysis of legal and institutional obstacles and incentives to the development of the hydroelectric potential at Goose River, Maine

Energy Technology Data Exchange (ETDEWEB)

None,

1980-05-01

The case study is an analysis of the legal, institutional, and financial incentives and obstacles to the development of the hydroelectric potential on the Goose River in Maine. The Goose River project concerns development by a private developer, Maine Hydro-Electric Development Corporation. The project is comprised of a five-dam system, with the first dam located at Swan Lake and the fifth dam about one mile from the sea. It will utilize the 7500 acre-feet of storage capacity of Swan Lake to run the four downstream power stations. The system is designed to generate 430 kWs of total capacity which would be sold to Central Maine Power, the local investor-owned public utility.

Environmental Impact Report from Santa Rita Hydroelectric Power Plant (Minas Gerais State - Brazil): technical strategic for its elaboration

International Nuclear Information System (INIS)

Souza, J.A. de; Marques Neto, F.P.

1989-01-01

The steps for developing the technical strategies used on the elaboration of Environmental Impact Report from Santa Rita Hydroelectric Power Plant, Minas Gerais State, are described, including the influence area, technical requirements, impact identification, technical selection of mitigative measures, impact meaning and strategy for evaluating the identified impacts. (C.G.C.)

Small-scale hydroelectric power plant of Passo do Inferno automation system; Sistema de automatizacao da PCH Passo do Inferno

Energy Technology Data Exchange (ETDEWEB)

Santos, Luiz C. Lisboa; Moralles, Reni; Quadros, Carlos A.D.; Martiny, Raul; Moehlecke, Juarez E.; Costa, Nelson D. da; Cesar, Rogerio L.; Santos, Sergio S.; Basei, Eleu Natal [Companhia Estadual de Energia Eletrica do Estado do Rio Grande do Sul, Porto Alegre, RS (Brazil)

1993-12-31

This work introduces the automation system brought into the 1,7 MVA small-scale hydroelectric power plant of Passo do Inferno, state of Rio Grande do Sul, Brazil. The following systems are presented: supervision, security and generation control, as well as the program and the controller. In this work, it is focused the generation control system, as a new outfitted system in small-scale hydroelectric power plants 3 figs.

Determining generator parameters of Camargos hydroelectric power plant through frequency response measurement

Energy Technology Data Exchange (ETDEWEB)

Oliveira, Sebastiao E.M. de; Padua Guarini, Antonio de [Centro de Pesquisas de Energia Eletrica (CEPEL), Rio de Janeiro, RJ (Brazil); Souza, Joao A. de; Valgas, Helio M; Pinto, Roberto del Giudice R. [Companhia Energetica de Minas Gerais (CEMIG), Belo Horizonte, MG (Brazil)

1994-12-31

This work describes the results of the set frequency response tests performed in the generator number 2, 6.9 kV, 25 MVA, of Camargos hydroelectric power plant, CEMIG, and the parameters relatives to determined structures of model. This tests are unpublished in Brazil. (author) 7 refs., 16 figs., 7 tabs.

Analysis of synchronous and induction generators used at hydroelectric power plant

Science.gov (United States)

Diniş, C. M.; Popa, G. N.; lagăr, A.

2017-01-01

In this paper is presented an analysis of the operating electric generators (synchronous and induction) within a small capacity hydroelectric power plant. Such is treated the problem of monitoring and control hydropower plant using SCADA systems. Have been carried an experimental measurements in small hydropower plant for different levels of water in the lake and various settings of the operating parameters.

Conditions and possibilities for inclusion the hydro-power plants from the 'Shara' hydroelectric system into the power system of the Republic of Macedonia

International Nuclear Information System (INIS)

Rumenova, Evica; Naumoski, Kliment

2001-01-01

At the and of 1998, a study on conditions and possibilities of the 'Shara' hydroelectric system construction was prepared. The study considers an interesting idea for building up three reversible power plants. From electricity point of view the study emphasizes several significant issues that require comprehensive analyses in order to define the conditions and possibilities for their development. This paper attempts to give an overview of one of this issues: Conditions and possibilities for inclusion the hydro-power plants from the 'Shara' - system into the power supply system of Republic of Macedonia. (Original)

An Investigation of Health and Safety Measures in a Hydroelectric Power Plant

Directory of Open Access Journals (Sweden)

Amevi Acakpovi

2016-12-01

Conclusion: The implementation of the proposed recommendations in this paper, would lead to the prevention of work-related injuries and illnesses of employees as well as property damage and incidents in hydroelectric power plants. The recommendations may equally be considered as benchmark for the Safety and Health Management System with international standards.

An Investigation of Health and Safety Measures in a Hydroelectric Power Plant.

Science.gov (United States)

Acakpovi, Amevi; Dzamikumah, Lucky

2016-12-01

Occupational risk management is known as a catalyst in generating superior returns for all stakeholders on a sustainable basis. A number of companies in Ghana implemented health and safety measures adopted from international companies to ensure the safety of their employees. However, there exist great threats to employees' safety in these companies. The purpose of this paper is to investigate the level of compliance of Occupational Health and Safety management systems and standards set by international and local legislation in power producing companies in Ghana. The methodology is conducted by administering questionnaires and in-depth interviews as measuring instruments. A random sampling technique was applied to 60 respondents; only 50 respondents returned their responses. The questionnaire was developed from a literature review and contained questions and items relevant to the initial research problem. A factor analysis was also carried out to investigate the influence of some variables on safety in general. Results showed that the significant factors that influence the safety of employees at the hydroelectric power plant stations are: lack of training and supervision, non-observance of safe work procedures, lack of management commitment, and lack of periodical check on machine operations. The study pointed out the safety loopholes and therefore helped improve the health and safety measures of employees in the selected company by providing effective recommendations. The implementation of the proposed recommendations in this paper, would lead to the prevention of work-related injuries and illnesses of employees as well as property damage and incidents in hydroelectric power plants. The recommendations may equally be considered as benchmark for the Safety and Health Management System with international standards.

Power and dignity: the social consequences of hydro-electric development for the James Bay Cree

International Nuclear Information System (INIS)

Niezen, R.

1993-01-01

The social impact that large-scale hydro-electric development has on the Cree of James Bay following the construction of the La Grande Complex was discussed. Many environmental changes were brought about by dam construction. The project, which also involved the first settlement (the James Bay and Northern Quebec Agreement) directed at extinguishing aboriginal title to land and natural resources in Canada, resulted in several relocations of Cree communities. In addition to compensation, the Agreement included a formal procedure for environmental and social impact assessment for development projects. However, there was little commitment, as a matter of corporate or government policy, to monitoring any of the social impacts. This paper is a preliminary response to an appeal for attention to be focused on the social consequences of hydro-electric development for the Cree in James Bay. Data from social service files indicate that the rapid centralization of the James Bay Cree into structured communities led to social instability in the villages, reflected by high frequencies in suicide, neglect of children, vandalism and drug and alcohol abuse. The material presented here is expected to serve as a warning that in further developing the far North of Quebec the pace of social change in Cree society will have to be slowed down to avoid social destruction of the native communities. 15 refs., 2 tabs

Power and dignity: the social consequences of hydro-electric development for the James Bay Cree

Energy Technology Data Exchange (ETDEWEB)

Niezen, R [Harvard Univ., Boston, MA (United States)

1993-11-01

The social impact that large-scale hydro-electric development has on the Cree of James Bay following the construction of the La Grande Complex was discussed. Many environmental changes were brought about by dam construction. The project, which also involved the first settlement (the James Bay and Northern Quebec Agreement) directed at extinguishing aboriginal title to land and natural resources in Canada, resulted in several relocations of Cree communities. In addition to compensation, the Agreement included a formal procedure for environmental and social impact assessment for development projects. However, there was little commitment, as a matter of corporate or government policy, to monitoring any of the social impacts. This paper is a preliminary response to an appeal for attention to be focused on the social consequences of hydro-electric development for the Cree in James Bay. Data from social service files indicate that the rapid centralization of the James Bay Cree into structured communities led to social instability in the villages, reflected by high frequencies in suicide, neglect of children, vandalism and drug and alcohol abuse. The material presented here is expected to serve as a warning that in further developing the far North of Quebec the pace of social change in Cree society will have to be slowed down to avoid social destruction of the native communities. 15 refs., 2 tabs.

National hydroelectric power resources study. Preliminary inventory of hydropower resources. Volume 3. Mid-Continent region

Energy Technology Data Exchange (ETDEWEB)

None

1979-07-01

The US Corps of Engineers' assessment of the nation's hydroelectric resources provides a current and comprehensive estimate of the potential for incremental or new generation at existing dams and other water resource projects, as well as for undeveloped sites in the US. The demand for hydroelectric power is addressed and various related policy and technical considerations are investigated to determine the incentives, constraints, and impacts of developing hydropower to meet a portion of the future energy demands. The comprehensive data represent the effort of the Corps of Engineers based on site-specific analysis and evaluation. Summary tables include estimates of the potential capacity and energy at each site in the inventory. The number of sites and potential capacity in each state are identified, but specific detailed information is included for sites in Colorado, Kansas, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Wyoming.

Hydroelectric power in Switzerland: large growth potential by increasing the installed power

International Nuclear Information System (INIS)

Schleiss, A.

2007-01-01

Due to its important hydroelectric power generation facilities (about 525 plants with a total power of 13,314 MW producing about 35.3 TWh annually) Switzerland plays an important role in the interconnected European power system. Large artificial storage lakes in the Swiss Alps can generate peak power during hours of highest demand: 9700 MW are available from accumulated energy and the total power of pumped-storage facilities amounts to 1700 MW. The latter allow refilling the reservoirs at periods of low power demand and generating power at periods of peak demand. In the case of favorable conditions, the yearly average power production could be increased by 6% and the production during the winter period (October to March) by 20% by the year 2020. However, looking forward to the year 2050, the annual production is expected to decrease by 3% despite a possible extension of hydropower. This decrease is due to the enforcement of the minimum residual water flow rates required by a new legislation to protect the rivers. The enforcement is due at latest when the present licenses for water utilization expire. On the other hand, the installed (peak) power might be further increased by 50% by retrofitting the existing installations and constructing the pumped-storage plants currently at the planning stage

The further environmental development of Polyphyto Hydroelectric Project reservoir in Kozani prefecture and its contribution to the life quality improvement

Science.gov (United States)

Saounatsou, Chara; Georgi, Julia

2014-08-01

The Polyphyto Hydroelectric Project was constructed in 1974 and it has been operating since on the Aliakmonas River, Kozani prefecture, by the Greek Public Power Corporation. The construction of the Ilarion Hydroelectric Project, upstream from the Polyphyto Reservoir, has been recently completed and will start operating in the near future. Apart from hydroelectric power production, the Polyphyto reservoir provides flood control to the areas below the Polyphyto dam. It is also used to manage water provision to the city of Thessaloniki and adjacent agricultural plain, providing at the same time cooling water to the Thermo Electric Projects in Ptolemaida. The Polyphyto reservoir has potential for further development as an economic fulcrum to the region in which is located. The Kozani and Servia-Velvendos Municipalities have proceeded to the construction of several touristic, nautical - athletic and fishing projects. In order to promote such developments, while preserving the artificial wetland, flora and fauna of the Polyphyto Reservoir, it is important to reduce the fluctuation of the reservoir elevation which according to its technical characteristics is 21m. The aim of this paper is to propose the combined operation of the two Hydroelectric Project reservoirs to satisfy all the present Polyphyto Hydroelectric Project functions and to reduce the annual fluctuation of the Polyphyto Reservoir. The HEC-5, Version 8 / 1998 computer model was used in our calculations, as developed by the Hydrologic Engineering Center (HEC) of the US Army Corps of Engineers for reservoir operation simulation. Five possible operation scenarios are tested in this paper to show that the present fluctuation of the Polyphyto Reservoir can be reduced, with some limitations, except during dry weather periods.

Optimization of the weekly operation of a multipurpose hydroelectric development, including a pumped storage plant

International Nuclear Information System (INIS)

Popa, R; Popa, B; Popa, F; Zachia-Zlatea, D

2010-01-01

It is presented an optimization model based on genetic algorithms for the operation of a multipurpose hydroelectric power development consisting in a pumped storage plant (PSP) with weekly operation cycle. The lower reservoir of the PSP is supplied upstream from a peak hydropower plant (HPP) with a large reservoir and supplies the own HPP which provides the required discharges towards downstream. Under these conditions, the optimum operation of the assembly consisting in 3 reservoirs and hydropower plants becomes a difficult problem if there are considered the restrictions as regards: the gradients allowed for the reservoirs filling/emptying, compliance with of a long-term policy of the upper reservoir from the hydroelectric development and of the weekly cycle for the PSP upper reservoir, correspondence between the power output/consumption in the weekly load schedule, turning to account of the water resource at maximum overall efficiencies, etc. Maximization of the net energy value (generated minus consumed) was selected as performance function of the model, considering the differentiated price of the electric energy over the week (working or weekend days, peak, half-peak or base hours). The analysis time step was required to be of 3 hours, resulting a weekly horizon of 56 steps and 168 decision variables, respectively, for the 3 HPPs of the system. These were allowed to be the flows turbined at the HPP and the number of working hydrounits at PSP, on each time step. The numerical application has considered the guiding data of Fantanele-Tarnita-Lapustesti hydroelectric development. Results of various simulations carried out proved the qualities of the proposed optimization model, which will allow its use within a decisional support program for such a development.

Optimization of the weekly operation of a multipurpose hydroelectric development, including a pumped storage plant

Energy Technology Data Exchange (ETDEWEB)

Popa, R; Popa, B [Faculty of Power Engineering, University Politehnica of Bucharest, 313 Spl. Independentei, sect. 6, Bucharest, 060042 (Romania); Popa, F [Institute for Hydropower Studies and Design, 5-7 Vasile Lascar, sect. 2, Bucharest, 020491 (Romania); Zachia-Zlatea, D, E-mail: bogdan.popa@rosha.r [Hidroelectrica S.A., 3 Constantin Nacu, sect. 2, Bucharest, 020995 (Romania)

2010-08-15

It is presented an optimization model based on genetic algorithms for the operation of a multipurpose hydroelectric power development consisting in a pumped storage plant (PSP) with weekly operation cycle. The lower reservoir of the PSP is supplied upstream from a peak hydropower plant (HPP) with a large reservoir and supplies the own HPP which provides the required discharges towards downstream. Under these conditions, the optimum operation of the assembly consisting in 3 reservoirs and hydropower plants becomes a difficult problem if there are considered the restrictions as regards: the gradients allowed for the reservoirs filling/emptying, compliance with of a long-term policy of the upper reservoir from the hydroelectric development and of the weekly cycle for the PSP upper reservoir, correspondence between the power output/consumption in the weekly load schedule, turning to account of the water resource at maximum overall efficiencies, etc. Maximization of the net energy value (generated minus consumed) was selected as performance function of the model, considering the differentiated price of the electric energy over the week (working or weekend days, peak, half-peak or base hours). The analysis time step was required to be of 3 hours, resulting a weekly horizon of 56 steps and 168 decision variables, respectively, for the 3 HPPs of the system. These were allowed to be the flows turbined at the HPP and the number of working hydrounits at PSP, on each time step. The numerical application has considered the guiding data of Fantanele-Tarnita-Lapustesti hydroelectric development. Results of various simulations carried out proved the qualities of the proposed optimization model, which will allow its use within a decisional support program for such a development.

Cost analysis of small hydroelectric power plants components and preliminary estimation of global cost

International Nuclear Information System (INIS)

Basta, C.; Olive, W.J.; Antunes, J.S.

1990-01-01

An analysis of cost for each components of Small Hydroelectric Power Plant, taking into account the real costs of these projects is shown. It also presents a global equation which allows a preliminary estimation of cost for each construction. (author)

Social and environmental impacts of the James Bay hydroelectric project

International Nuclear Information System (INIS)

Hornig, J.F.

1999-01-01

The book, which is an analysis and not an advocacy, examines the anatomy of the controversy that has swirled around the James Bay project - the La Grande and Great Whale projects combined - from the 1970s to the 1990s, and seeks, in the process, to determine whether there are lessons that can be learned from such an analysis that are applicable to other cases as well as to James Bay itself. The contributors are interested, at one and the same time, in finding ways to integrate the knowledge of natural scientists and social scientists to deepen the understanding of human/environment relations and to link science and policy to encourage a productive dialogue between practitioners and scholars in this increasingly important area of inquiry. The contributor's papers include the following: introduction to the issues; hydroelectric power development at James Bay: establishing a frame of reference; James Bay: environmental considerations for building large hydroelectric dams and reservoirs in Quebec; elevated mercury in fish as a result of the James Bay hydroelectric power development: perception and reality; the Cree people of James Bay: assessing the social impacts of hydroelectric dams and reservoirs; culture, social change, and Cree opposition to the James Bay hydroelectric development; and the impact of James Bay hydroelectric development on the art and craft of the James Bay Cree. The authors of the volume have attempted to stand back and examine just a few of these issues from the perspective of a variety of disciplines, and their purpose is to inform and stimulate thoughtful consideration by providing an overall perspective that might might serve to broaden the context in which specific issues can be debated. refs., 3 tabs., 5 figs

Herpetofauna, Espora Hydroelectric Power Plant, state of Goiás, Brazil.

Directory of Open Access Journals (Sweden)

Vaz-Silva, W.

2007-01-01

Full Text Available We provide a checklist of the herpetofaunal assemblage from Espora Hydroelectric Power Plant region(UHE Espora, southwestern of the state of Goiás, Brazil. Representatives of 32 amphibian and 71 reptile species wereobtained during faunal monitoring and faunal rescue programs carried out in the study area. The obtained species listand distribution records are here discussed in an attempt to improve the still limited knowledge on Cerradoherpetofaunal assemblages.

Project final report: Energetic planning focusing small scale hydroelectric power plants; Relatorio final. Projeto planejamento energetico com enfase em pequenas centrais hidreletricas

Energy Technology Data Exchange (ETDEWEB)

Costa, Yara dos Santos

1994-12-31

Considering the increasing need for a better utilization of the Brazilian hydric resources, a deeper analysis of small scale hydroelectric power plants has been demanding. This work presents a case study of energetic planning based upon small scale hydroelectric power plants in a district of Amazon state - North Brazil 8 refs., 11 figs., 19 tabs.

MODELING AND STUDY OF HYDROELECTRIC GENERATING SETS OF SMALL HYDRO POWER PLANTS WITH FREQUENCY-CONTROLLED PERMANENT MAGNET SYNCHRONOUS GENERATORS

Directory of Open Access Journals (Sweden)

R. I. Mustafayev

2016-01-01

Full Text Available Currently, the hydroelectric generating sets of small HPPs with Pelton turbines employ as their generating units conventional synchronous generators with electromagnetic excitation. To deal with the torque pulsatile behaviour, they generally install a supplementary flywheel on the system shaft that levels the pulsations. The Pelton turbine power output is adjusted by the needle changing water flow in the nozzle, whose advancement modifies the nozzle area and eventually – the flow. They limit the needle full stroke time to 20–40 sec. since quick shutting the nozzle for swift water flow reduction may result in pressure surges. For quick power adjustment so-called deflectors are employed, whose task is retraction of water jets from the Pelton turbine buckets. Thus, the mechanical method of power output regulation requires agreement between the needle stroke inside the turbine nozzles and the deflector. The paper offers employing frequency-controlled synchronous machines with permanent magnets qua generating units for the hydroelectric generating sets of small HPPs with Pelton turbines. The developed computer model reveals that this provides a higher level of adjustability towards rapid-changing loads in the grid. Furthermore, this will replace the power output mechanical control involving the valuable deflector drive and the turbine nozzle needles with electrical revolution rate and power output regulation by a frequency converter located in the generator stator circuit. Via frequency start, the controllable synchronous machine ensures stable operation of the hydroelectric generating set with negligibly small amount of water (energy carrier. Finally, in complete absence of water, the frequency-relay start facilitates shifting the generator operation to the synchronous capacitor mode, which the system operating parameter fluctograms obtained through computer modeling prove. 

Power improvement and modernization of small scale hydroelectric power plants in Brazil; Recapacitacao e modernizacao de PCH`s no Brasil

Energy Technology Data Exchange (ETDEWEB)

Nascimento, Jose Guilherme Antioga do [Departamento Nacional de Aguas e Energia Eletrica (DNAEE), Brasilia, DF (Brazil); Amaral, Cristiano Abijaode [Companhia Energetica de Minas Gerais (CEMIG), Belo Horizonte, MG (Brazil)

1995-12-31

Several small scale hydroelectric power plants existing in Brazil have been abandoned due to recent projects of large scale units, however, some of than still present workable conditions. Due to that fact, several Brazilian electric power companies have been considering the possibility of modernizing such old units as an alternative for regional electric power generation. This work discusses the above mentioned issues 3 refs., 5 figs., 9 tabs.

Emissions from hydroelectric reservoirs and comparison of hydroelectricity, natural gas and oil

International Nuclear Information System (INIS)

Gagnon, L.; Chamberland, A.

1993-01-01

When reservoirs are created, a small fraction of the flooded organic matter decomposes into humic acids, carbon dioxide (CO 2 ), methane (CH 4 ), nitrogen, phosphorus, and other elements. The major greenhouse gases produced are CO 2 and CH 4 . For northern projects, Canadian studies on emissions from hydroelectric reservoirs have reached similar conclusions: Emissions, including methane, are less than 35 kg CO 2 equivalent per MWh. Using a typical project in northern Quebec as the basis for analysis, none of the studies dispute the considerable advantages of hydroelectricity regarding greenhouse gas emissions. Taking into account all components of energy systems, emissions of greenhouse gases from natural-gas power plants are 24 to 26 times greater than emissions from hydroelectric plants. The Freshwater Institute, in an article published in Ambio suggests that emissions from hydroelectric plants could be a significant source of greenhouse gases. This conclusion does not apply to most hydroelectric projects for two reasons: First, the Freshwater Institute's studies concerned flooded peatlands and shallow reservoirs that are not typical of most hydro projects; and second, the Institute analyzed a hydro project with a ratio of flooded area to energy production that is 6 to 10 times higher than typical projects in Canada. 7 refs, 4 tabs

Mitigative measures for the Laforge-2 hydroelectric development

International Nuclear Information System (INIS)

Faucher, O.; Gagnon, R.

1995-01-01

Corrective, preventive and enhancement measures undertaken as part of the development of the Laforge-2 Hydroelectric Power Plant, were described. The environment into which the project has been integrated was also described. General background information and technical characteristics of the Laforge-2 and Caniapiscau-Laforge diversion were provided. The Laforge-2 Mitigative Master Plan's measures for improving wildlife potential, cleaning-up of tributaries, protecting wildlife habitats, seeding around ponds and humid zones, installing platforms to encourage and facilitate the nesting of ospreys, and promoting proper harvesting of the territory, were described as corrective measures that will promote sustainable development. Contractual obligations to protect the environment were outlined. Enhancement measures described included reclamation of areas disturbed during construction, landscaping around main structures and construction of scenic lookouts. It was fully expected that the mitigative measures described for the Laforge-2 project will minimize negative impacts of the project and will maximize positive ones by improving wildlife potential in areas near the reservoir. 5 figs

76 FR 28024 - Swan Falls Hydroelectric Project, Idaho Power Company; Notice of Teleconference

Science.gov (United States)

2011-05-13

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 503-048-ID] Swan Falls Hydroelectric Project, Idaho Power Company; Notice of Teleconference a. Date and Time of Meeting: Tuesday, May 24, 2011 at 10 a.m. (Mountain Time). b. Place: By copy of this notice we are inviting all interested parties to attend a teleconference from...

National hydroelectric power resources study. Preliminary inventory of hydropower resources. Volume 6. Northeast region

Energy Technology Data Exchange (ETDEWEB)

None

1979-07-01

In the Northeast region, the physical potential for all sites exceeds 33,000 MW of capacity with an estimated average annual energy of some 153,000 GWH. By comparison, the available data represent about 6% of the total capacity and 11% of the hydroelectric energy potential estimated for the entire US. Of the total capacity estimated for the region, 6100 MW has been installed. The remainder (27,200 MW, excluding the undeveloped capacity in the New England States) is the maximum which could be developed by upgrading and expanding existing projects (18,700 MW), and by installing new hydroelectric power capacity at all potentially feasible, undeveloped sites (8500 MW). Small-scale facilities account for about 15% of the region's total installed capacity, but another 1800 MW could be added to these and other small water-resource projects. In addition, 500 MW could be installed at potentially feasible, undeveloped small-scale sites. The small-scale resource varies considerably, with the states of New York, Maine, and New Hampshire having the largest potential for incremental development at existing projects in the Northeast region. West Virginia, Maryland, Delaware, New Jersey, Pennsylvania, New York, Connecticut, Massachusetts, Rhode Island, New Hampshire, Vermont, and Maine comprise the Northeast region.

Pollution and power generation: environmental implications Small Hydroelectric Plants of Sao Paulo

Directory of Open Access Journals (Sweden)

Giorgia Limnios

2015-06-01

Full Text Available The current situation of water scarcity of of São Paulo State, manifested as imminent risk of shortages in major urban areas, has led not only to issues concerning preservation of water resources, but also problems related to energy availability, identified in a series of expeditions field carried out under the project " Electricity History of the State of Sao Paulo (1890-1960: Industrial Heritage , Landscape and Environment – Electromemory II”. The objective of this project is to study an extremely representative set of power plants and small hydroelectric power plants built during the initial period of electrification of the State of São Paulo – Brazil (1890-1960, along with its evolution within the social, historical and geographical aspects, to highlight the landscape changes resulting from the electrification process, as well as beneficiaries and impacts on landscape during the study period. In all visits, in addition to the problem of water scarcity, we verified that the power plants face generation constraints related to severe water pollution, either by diffuse or point sources. Some studies conducted in Brazil have analyzed the interference of pollution in power generation , highlighting the role of diffuse sources such as solid waste, sediments from areas with strong erosion, lubricant oils from vehicles or the development of invasive species, particularly as macrophytes, causative agents of biochemical changes that promote the formation of chemical compounds able to erode the electromechanical equipment of the plants or even prevent the flow of water intake into the same. The power plants covered by Electromemory II Project scope have these same problems, which prompted the need to establish a relationship between pollution in its various forms and the generation of electricity. To establish this bridge, the survey of publications and technical reports was necessary as well asresearches inenvironmental legislation

Hydro-electric power project on the Toulnustouc River

International Nuclear Information System (INIS)

Rochon, Y.; Morneau, J.; Lefebvre, G.

2001-01-01

Hydro-Quebec has proposed the development of a hydro-electric power project on the Toulnustouc River, located between Saint-Anne Lake and Manic Reservoir. The work would involve the construction of a power generation plant of 526 MW, construction of a 77 m dam on the Toulnustouc River, 14 km downstream from the existing Lac-Saint-Anne dam, the creation of a new water expanse covering 22 square kilometers, the construction of an embankment, the strengthening of the existing Saint-Anne embankment, digging a 9.8 km gallery, and the construction of a flood spillway. This work would have consequences for three different sectors of the river: between the existing and the proposed dam, between the dam and the projected power plant, and between the power plant and the limit of the influence of the reservoir Manic-2. Hydro-Quebec would like the work to begin in July 2001, with the aim of having the plant in operation in 2005. The overall cost of the project is estimated at 600 million dollars. It is expected that the economic benefits for the region would be in the 211 million dollar range. An environmental assessment of the entire project was performed by Quebec Ministere de l'Environnement. The authors determined that the project was recognized as justified by the Ministere des Ressources Naturelles (Natural Resources Ministry) and concluded that the project was acceptable from an environmental point of view as long as six conditions were met. They touched on the construction of a flood spillway capable of evacuating 19 cubic meters per second at any time during the year, that water be evacuated downstream following a pre-determined debit that varies according to the time of year, monitoring of the brook trout population and its habitat, and environmental monitoring. 46 refs., 7 tabs., 2 figs., 1 annex

Design of an Adaptive Power Regulation Mechanism and a Nozzle for a Hydroelectric Power Plant Turbine Test Rig

Science.gov (United States)

Mert, Burak; Aytac, Zeynep; Tascioglu, Yigit; Celebioglu, Kutay; Aradag, Selin; ETU Hydro Research Center Team

2014-11-01

This study deals with the design of a power regulation mechanism for a Hydroelectric Power Plant (HEPP) model turbine test system which is designed to test Francis type hydroturbines up to 2 MW power with varying head and flow(discharge) values. Unlike the tailor made regulation mechanisms of full-sized, functional HEPPs; the design for the test system must be easily adapted to various turbines that are to be tested. In order to achieve this adaptability, a dynamic simulation model is constructed in MATLAB/Simulink SimMechanics. This model acquires geometric data and hydraulic loading data of the regulation system from Autodesk Inventor CAD models and Computational Fluid Dynamics (CFD) analysis respectively. The dynamic model is explained and case studies of two different HEPPs are performed for validation. CFD aided design of the turbine guide vanes, which is used as input for the dynamic model, is also presented. This research is financially supported by Turkish Ministry of Development.

Hydroelectric power and global environmental problems: benefits and environmental impacts

International Nuclear Information System (INIS)

Chabot, B.

1992-01-01

The risk of global warming is one of the most serious global environmental problems. It is due to the increase of greenhouse gases emissions, mainly because of the use of fossil fuels in the energy sector, particularly for electricity generation. At an international level, experts now agree that measures are to be taken to reduce this risk. In the energy sector, an improvement of energy efficiency and an increase of nuclear electricity generation are often presented as the best available solutions. Renewable energy sources are often presented as a solution with a negligible potential impact, and sometimes, hydro power is even forgotten, or its coasts and its potential impacts on local environment are presented as an obstacle to its positive contribution to the reduction of global warming risk. Without denying the positive impacts of other solutions, this paper explains the possibilities and the benefits of an increased use of hydroelectric power, when implemented with a minimum impact on local environment and with a synergistic effect with the rational use of generated energy, in order to have access to a sustainable development. 19 refs., 6 figs

Hydroelectric power plant project on the Coulonge River: Report of inquiry and public hearing

International Nuclear Information System (INIS)

1992-01-01

A hydroelectric power plant is proposed for the Coulonge River, a tributary of the Ottawa River in Quebec. Water would be taken from the river through a 609 m tunnel to the plant, which would contain two Francis turbines with a total installed power of 16.2 MW operating under a net head of 43 m and a water flow rate of 21.5 m 3 /s. Other works would be necessary upstream for controlling flow and protecting the intake. Total cost for the two-year construction project is estimated at $28 million and annual revenues are forecast at $6 million. An inquiry and public hearing were held to consider the biophysical, social, economic, and cultural impacts of the proposed hydroelectric project. Results of the hearing are summarized in such areas as legal aspects, environmental quality, water rights, land use, job creation, effects on tourism and recreation, effects on wildlife, water level fluctuations, water quality, and safety. The economic justification for the project is discussed with reference to electricity demand, economic viability, utilization factors, and policies that favor construction of small-scale hydroelectric plants. The project was not found to bring sufficient benefits to the region in which it was to be situated and would not be authorized unless Hydro-Quebec tariff policy with respect to small hydro plants was modified and unless the project sponsor compensates the regional municipality. 13 refs., 11 figs., 4 tabs

Have Norwegian producers of hydroelectric power wasted the water?

International Nuclear Information System (INIS)

2003-01-01

Norwegian producers of hydroelectric power have been criticized for having exported power to Sweden during the autumn and winter 2003/2004. As this analysis shows, although the reservoir level in Norway was below normal in October already, the negative deviation from the normal reservoir level was even greater in Sweden till the end of the year. Also when the magnitude of the reserve is measured relative to the number of weeks with normal winter production for which it lasts, the situation was worse in Sweden than in Norway. After New Year the deviation from the normal reservoir level has been much the same in the two countries and has changed in parallel. During this period the exchange between the two countries has approximately balanced and the power flow from Sweden to Norway has grown gradually. With this as a background, there is no basis for asserting that the Norwegian producers have managed the water resources in an irresponsible way. In general, the power flow and the water resource management in the two countries appear reasonable considering the water influx and the prices. Different market imperfections may nevertheless have rendered the water resource management socially less then optimal.

Analysis of the spontaneous variations in wind power and necessary continuous regulation of hydro-electric and thermal power, related to a future Swedish power system

Energy Technology Data Exchange (ETDEWEB)

Holm, J O; Lindstrom, P O

1982-09-01

Wind power is unlike conventional electric power generation, since the output fluctuates uncontrollably. These fluctuations must be balanced by controlled generation from other power sources. This will create new and interesting demands on the reserves in the power system. The short-term fluctuations have a low simultaneity factor and must be balanced by an automatic frequency control reserve. In Sweden, this consists of automatically controlled hydro-electric power. The report contains calculations of the amount by which the demand on reserves will increase when wind power is introduced.

Testing of an acoustic smolt deflection system, Blantyre hydroelectric power scheme

International Nuclear Information System (INIS)

1996-01-01

The aim of this study was to test the effectiveness of an underwater acoustic barrier as a means of preventing the entry of salmon (Salmo salar) and sea trout (Salmo trutta) smolts and other fish into the water intake of a hydro-electric power (HEP) station. A secondary objective was to measure the injury rate of fish passed through the turbine, so that the risk to any fish that penetrated the acoustic barrier could also be determined. The test site, which was a 575kW Kaplan plant located at Blantyre on the R. Clyde, Lanarkshire, was selected as being representative of run-of-river sites currently being developed under the Government's NFFO (Non-Fossil Fuel Obligation) and SRO (Scottish Renewables Order) schemes. A further objective was to disseminate information arising from the project to the scientific and HEP community. (author)

Environmental impact analysis of the hydroelectric power development sheme in the River Grunnaai in Seljord municipality, Telemark; Konsekvensutredning av kraftutbyggingsprosjekt i Grunnaai i Seljord, Telemark

Energy Technology Data Exchange (ETDEWEB)

Muniz, I.P.; Bendiksen, E.; Erikstad, L.; Reitan, O.

1997-12-31

This report discusses the possible environmental consequences of a planned hydroelectric power development of the river Grunnaai, Norway. The consequences are found to be small, provided the proper counter measures are taken. Without counter measures, there may be moderate consequences on fish populations and botanical conditions, directly dependent on the changed water flow. The greatest value of the area concerned lies in its unspoiled wilderness character. There are extensive lists of birds and mammals and plant species registered in the river valley. 51 refs., 7 figs., 4 tabs.

The evolving policy regime for pumped storage hydroelectricity in China: A key support for low-carbon energy

International Nuclear Information System (INIS)

Zhang, Sufang; Andrews-Speed, Philip; Perera, Pradeep

2015-01-01

Highlights: • Highlights the role of pumped storage hydroelectricity in renewable energy integration. • Examines the development of pumped storage hydroelectricity in China. • Reviews the regulatory policies on pumped storage hydroelectricity in China. • Analyzes the operation and pricing regime for pumped storage hydroelectricity in China. • Makes policy recommendations for promoting pumped storage hydroelectricity in China. - Abstract: As part of its energy transition strategy, China has set ambitious targets for increasing the contribution of renewable energy and, in particular, of wind power. However, the Chinese power sector has not undergone the necessary reforms to facilitate the integration and absorption of a larger share of variable renewable energy. This is evident from the difficulties in absorbing wind power from already commissioned wind farms and the resultant curtailment of wind power. Pumped storage hydroelectricity (PSH) is a flexible power source that can facilitate higher penetration levels of wind power as well as complement China’s growing nuclear power capacity. However, regulatory policy constraints have restricted the effective utilization of existing PSH capacity and discouraged investment in new PSH capacity. This paper examines these constraints and assesses the likely impact of new policies designed to address them. Finally, policy recommendations and concluding remarks are provided. This paper contributes to the literature on renewable energy integration from a new perspective. The lessons from China are relevant to other countries going through the energy transition

Proposed Dunvegan hydroelectric project

International Nuclear Information System (INIS)

Houston, M.

2001-01-01

A new hydroelectric project is being proposed on the Peace River in the vicinity of Dunvegan, Alberta, by Glacier Power. The proposal calls for a low head, run-of-the-river hydroelectric power plant which would comprise a powerhouse containing 40 Kaplan turbines, a weir section, two fishways and a boat lock. The capacity of the generating plant would be 80 MW. As per established guidelines, the review process was initiated in July 1999 and is ongoing. Stakeholders, government agencies, both at the federal and provincial levels, are involved in the review process. The potential effects on the ice regime, fish passage and fish mortality and bank stability are the issues that have warranted the most attention to date. Scheduled to begin on October 2, 2001, a public hearing on the project has been arranged by the Alberta Energy and Utilities Board. The objective sought by Glacier Power is to have the project certified as being a green-power plant. Green power is defined as power produced from renewable sources with low environmental impact. The production of power with minimal environmental impacts is being encouraged in Alberta by Glacier Power, which sells power for a premium. 6 refs., 4 figs

West Kootenay Power Ltd. : Application to sell its hydroelectric generation assets : Decision

International Nuclear Information System (INIS)

Ostergaard, P.; Bradley, P.G.; Clemenhagen, B.L.

2001-01-01

An investor-owned electric utility providing wholesale and retail service in the West Kootenay and South Okanagan regions of British Columbia, West Kootenay Power Ltd. (WKP) sought the approval from the British Columbia Utilities Commission to sell the four hydroelectric power plants and related facilities to Kootenay River Power Corporation (KRP), and for the purchase by WKP of the output of these plants under a 60-year power purchase agreement. The four hydroelectric plants have a combined rated capacity of approximately 214 MW. Most of the energy and capacity needs of WKP are met via power purchase contracts and agreements, as winter peak loads approach 700 MW. As a result of share purchases, KRP would be 50 per cent owned by each of a provincial Crown Corporation, Columbia Power Corporation (CPC) and a wholly-owned subsidiary of the Columbia Basin Trust (CBT), CBT Energy Inc., if the transactions are allowed to proceed. Three principal agreements are of interest: the Asset Transfer Agreement (ATA), the Share Purchase Agreement (SPA), and the Power Purchase Agreement (PPA). During the review process, two main issues warranted special consideration: the treatment of the proceeds of the sale of assets, and the statutory parameters used by the Commission for the adjudication of the Application. The Application was submitted March 22, 2001, and the public hearing process began May 29, 2001. This Application is unique, in that it contains three agreements that would each require a separate review, but WKP requested that the agreements be considered in their aggregate. The Commission complied, and decided to deny the Application. Unless the terms of the sale are restructured, the transfer of assets to Kootenay River Power Corporation will not be approved by the Commission. Within one month of the date of this decision, WKP is to notify the Commission of its intentions, since it had signified that it would not proceed with the sale unless WKP shareholder receives 100

Feasibility determination of hydroelectric power generation at Patillas Reservoir, Puerto Rico. Final report

Energy Technology Data Exchange (ETDEWEB)

Huetter, J.J. Jr.

1979-02-01

The overall feasibility of retrofit for hydroelectric power generation at the Patillas Reservoir, an existing impoundment located near the town of Patillas, Puerto Rico, was studied. The scope of work and project intent is limited to establishing valid acceptance or non-acceptance criteria for this specific site as an example of power generation potential at existing dams of relatively low head (less than or equal to 20 m) in the United States. Information is included on hydrologic conditions at the site, retrofit plant design, economic analysis, environmental, legal, social and institutional aspects, and availability of plant equipment. It is concluded that generation of hydropower at Patillas is entirely practical and uncomplicated from an engineering viewpoint, has no adverse environmental effects and is economically justifiable for the island of Puerto Rico. The final agency or contractor roles for development are reasonably well-established. There are no prohibitory laws or regulations concerning this development. In fact, according to Puerto Rico legislation, such hydropower developments appear to be mandated. The installed capacity of the site ranges from 665 kW to approximately 1500 kW depending on extent of development of the available options. (LCL)

National hydroelectric power resources study. Preliminary inventory of hydropower resources. Volume 2. Pacific Southwest region

Energy Technology Data Exchange (ETDEWEB)

None

1979-07-01

The estimates of existing, incremental, and the undeveloped hydropower potential for all states in the various regions of the country are presented. In the Pacific Southwest region, the maximum physical potential for all sites exceeds 33,000 MW of capacity with an estimated average annual energy greater than 85,000 GWH. By comparison, these values represent about 6% of the total potential capacity and hydroelectric energy generation estimated for the entire US. Of the total capacity estimated for the region, 9900 MW has been installed. The remainder (23,200 MW) is the maximum which could be developed by upgrading and expanding existing projects (6000 MW) and by installing new hydroelectric power capacity at all potentially feasible, undeveloped sites (17,200 MW). Small-scale facilities account for less than 4% of the region's total installed capacity, but another 600 MW could be added to these and other small water resource projects. In addition, 600 MW could be installed at potentially feasible, undeveloped small-scale sites. The small-scale resource varies considerably, with the states of California and Utah having the largest potential for incremental development at existing projects in the Pacific Southwest region. States comprising the Southwest are Arizona, California, Hawaii, Nevada, and Utah.

Monitoring of surge tanks in hydroelectric power plants using fuzzy control; Ueberwachung von Wasserschloessern in Wasserkraftwerken mit Fuzzy-Control

Energy Technology Data Exchange (ETDEWEB)

Lin, J.C.

2000-07-01

Surge tanks are used to reduce pressure variations caused by fluid transients in high-head hydroelectric power plants. Occasionally load increases have to be limited to prevent the surge tank from draining due to excessive demands of flow. A control concept based on fuzzy logic was developed for governing the load changes of hydroelectric power plants. In order to achieve an optimal control behaviour and simultaneously to avoid the draining of surge tanks, the speed of load increases is automatically adjusted by a fuzzy conclusion depending on the height and the gradient of the water level in the surge tank, the reservoir level and the sum of load increases. The hydroelectric power plant Achensee of Tiroler Wasserkraftwerke AG in Austria is taken as an example to demonstrate the characteristics of the control concept. In comparison with a conventional control concept, the operation of load increases using the fuzzy concept proves to be more flexible and unrestricted. (orig.) [German] Ein Wasserschloss dient zur Verminderung von Druckschwankungen im Wasserfuehrungssystem von Hochdruckanlagen. Gelegentlich muss man die Lastaufnahme so beschraenken, dass das Wasserschloss nicht durch uebermaessige Wasserentnahme leerlaeuft. Fuer die Leistungsregelung eines Wasserkraftwerks wurde ein Konzept entwickelt, das auf der Fuzzy-Control in Verbindung mit der klassischen Regelung beruht. Um ein optimales Regelverhalten zu erhalten und gleichzeitig das Leerlaufen des Wasserschlosses zu vermeiden, wird die Geschwindigkeit der Lastaufnahme in Abhaengigkeit von der Hoehenkote und dem Gradienten des Wasserschlosspegels, dem Pegel des Oberwassers und der Groesse der geforderten Lasterhoehung automatisch eingestellt. Die Untersuchung erfolgt am Beispiel des Achenseekraftwerkes der Tiroler Wasserkraftwerke AG, Oesterreich. Im Vergleich mit einer konventionellen Regelung ergibt sich mit dem Fuzzy-Konzept eine flexiblere und freizuegigere Lastaufnahme. (orig.)

Hydroelectric development project of the Magpie dam on the Magpie River: Investigation and public hearing report

International Nuclear Information System (INIS)

Harvey, A.; Journault, C.

2004-08-01

Public hearings were held by Quebec's Bureau d'audiences publiques sur l'environnement (BAPE) concerning a proposed hydroelectric development project on the Magpie River in Quebec's Minganie Region. The proposed hydroelectric power plant is to be developed and managed by Hydromega Services Inc. and constructed by Aecon Group Ltd. The project consists of reconstructing a power plant and dam at an existing site that was constructed in 1961 but which has been decommissioned since 1989. The installed capacity of the proposed power plant is 40.6 MW. The drop height for the dam is 21.25 metres. The issues that were addressed during the hearings included the opinions and suggestion of the participants regarding energy provisions, regional development and ecological protection. One of the main concerns facing this project is the loss of spectacular rapids currently used by rafters. The Commission noted that the rapids cannot be saved without significant modification to the design of the project. However, the flooding associated with the project would facilitate fishermen, canoeists and kayakers, thereby preserving the recreational and tourism attributes of the Magpie River. The Commission also noted that the local economic repercussions of the project would benefit the population of the Minganie Region which has a high unemployment rate. Any ecological impacts may be controlled by relevant attenuation measures and follow-up. It was concluded that the proposed project could contribute modestly to meeting the anticipated growth in energy demand in Quebec. refs., figs

Fish population genetic structure shaped by hydroelectric power plants in the upper Rhine catchment.

Science.gov (United States)

Gouskov, Alexandre; Reyes, Marta; Wirthner-Bitterlin, Lisa; Vorburger, Christoph

2016-02-01

The Rhine catchment in Switzerland has been transformed by a chain of hydroelectric power stations. We addressed the impact of fragmentation on the genetic structure of fish populations by focusing on the European chub (Squalius cephalus). This fish species is not stocked and copes well with altered habitats, enabling an assessment of the effects of fragmentation per se. Using microsatellites, we genotyped 2133 chub from 47 sites within the catchment fragmented by 37 hydroelectric power stations, two weirs and the Rhine Falls. The shallow genetic population structure reflected drainage topology and was affected significantly by barriers to migration. The effect of power stations equipped with fishpasses on genetic differentiation was detectable, albeit weaker than that of man-made barriers without fishpasses. The Rhine Falls as the only long-standing natural obstacle (formed 14 000 to 17 000 years ago) also had a strong effect. Man-made barriers also exacerbated the upstream decrease in allelic diversity in the catchment, particularly when lacking fishpasses. Thus, existing fishpasses do have the desired effect of mitigating fragmentation, but barriers still reduce population connectivity in a fish that traverses fishpasses better than many other species. Less mobile species are likely to be affected more severely.

Report of the joint review panel : Glacier Power Ltd Dunvegan Hydroelectric Project, Fairview, Alberta

Energy Technology Data Exchange (ETDEWEB)

NONE

2008-12-19

This paper presented the results of a review of the Dunvegan hydroelectric project proposed for development on Alberta's Peace River. In addition to stating the project's purpose, viability, and benefits, the review examined the potential environmental and socio-economic impacts of the hydroelectric project and outlined conclusions developed through consultation with participants of public hearings. The review included a study of transmission lines needed for the project, and the likely impact of the hydroelectric plant on the Peace River fishery and ice regimes. Geotechnical issues related to slope stability, sedimentation and channel morphology, seismicity, and sedimentation in the region were analyzed. The impact of the project on wildlife, vegetation and forest resources was also examined. The study also examined impacts related to health and safety. Potential cumulative effects were reviewed, and First Nations and Metis concerns were outlined. It was concluded that impacts related to the construction, operation, and decommissioning of the project are not likely to be significant. tabs., figs.

Evaluation of the Life Cycle Greenhouse Gas Emissions from Hydroelectricity Generation Systems

Directory of Open Access Journals (Sweden)

Akhil Kadiyala

2016-06-01

Full Text Available This study evaluated the life cycle greenhouse gas (GHG emissions from different hydroelectricity generation systems by first performing a comprehensive review of the hydroelectricity generation system life cycle assessment (LCA studies and then subsequent computation of statistical metrics to quantify the life cycle GHG emissions (expressed in grams of carbon dioxide equivalent per kilowatt hour, gCO2e/kWh. A categorization index (with unique category codes, formatted as “facility type-electric power generation capacity” was developed and used in this study to evaluate the life cycle GHG emissions from the reviewed hydroelectricity generation systems. The unique category codes were labeled by integrating the names of the two hydro power sub-classifications, i.e., the facility type (impoundment (I, diversion (D, pumped storage (PS, miscellaneous hydropower works (MHPW and the electric power generation capacity (micro (µ, small (S, large (L. The characterized hydroelectricity generation systems were statistically evaluated to determine the reduction in corresponding life cycle GHG emissions. A total of eight unique categorization codes (I-S, I-L, D-µ, D-S, D-L, PS-L, MHPW-µ, MHPW-S were designated to the 19 hydroelectricity generation LCA studies (representing 178 hydropower cases using the proposed categorization index. The mean life cycle GHG emissions resulting from the use of I-S (N = 24, I-L (N = 8, D-µ (N = 3, D-S (N = 133, D-L (N = 3, PS-L (N = 3, MHPW-µ (N = 3, and MHPW-S (N = 1 hydroelectricity generation systems are 21.05 gCO2e/kWh, 40.63 gCO2e/kWh, 47.82 gCO2e/kWh, 27.18 gCO2e/kWh, 3.45 gCO2e/kWh, 256.63 gCO2e/kWh, 19.73 gCO2e/kWh, and 2.78 gCO2e/kWh, respectively. D-L hydroelectricity generation systems produced the minimum life cycle GHGs (considering the hydroelectricity generation system categories with a representation of at least two cases.

Fish and hydroelectricity

International Nuclear Information System (INIS)

Zorpette, G.

1990-01-01

This paper reports on the problems that hydroelectric plants have regarding fish populations. The utilities that operate these plants are finding that accommodating migrating fish presents unique engineering challenges, not the least of which involves designing and building systems to protect fish species whose migratory behavior remains something of a mystery. Where such systems cannot be built, the status of hydroelectric dams may be in doubt, as is now the case with several dams in the United States. A further twist in some regions in the possibility that certain migratory fish will be declared threatened or endangered-a development that could wreak havoc on the hydroelectric energy supply in those regions

'Matka 2' Hydroelectric Power Plant slip in the chain hydro energetic objects of the Treska River

International Nuclear Information System (INIS)

Danevski, Stavre

2004-01-01

The paper deals with the project for rational use of the Treska River. The concept of this project is utilization of the hydro-power potential of the Treska River through the subsystem 'Kozjak-Matka' which encompasses realization of three cascade hydroelectric power plants. The proposed and accepted design concepts of the machine hall and plant facilities in HPP 'St. Petka' (formerly named HPP Matka 2) are presented

Hydroelectric project EA's [environmental assessments]: The Magpie development in northern Ontario

International Nuclear Information System (INIS)

Ashwood, K.

1992-01-01

Great Lakes Power recently constructed a hydroelectric plant on the Magpie River near Wawa, Ontario. The project involved three main elements: construction of a 33 m high dam, a 15.5 MW power station, and a spillway at Steephill Falls; construction of a 3.5 m high overflow weir just above the crest of scenic Magpie Falls, creating a head pond to supply a 15 MW power plant; and construction of a weir and 15 MW power plant at Mission Falls. Although this was a private development and therefore not automatically subject to Ontario's Environmental Assessment Act, Great Lakes Power decided to conform with the act's requirements and undertook a comprehensive environmental assessment (EA). Environmental issues were focused on changes in hydrology and water quality, impacts on fisheries and natural resources, slope stability and erosion, socioeconomic impacts, impacts on heritage resources, and impacts on tourism and recreation. The project was approved subject to conditions which included implementation of mitigation and monitoring requirements outlined in the EA document. Environmental specialists worked closely with the engineers at the detailed design stage of the project, resulting in modifications to the preliminary design to minimize environmental impacts

Watermill and Small-Scale Hydroelectric Power Plant Landscapes Assessed According to Ecological Aspects

Directory of Open Access Journals (Sweden)

Lilita Lazdāne

2013-10-01

Full Text Available Research of watermill and small-scale hydroelectric power plant (HPP landscapes in Latvia according to ecological aspects is a part of a more complex research. The aim of this research is to examine the existing situation of watermill and small-scale HPP landscapes in Latvia by applying the ecological assessment criteria, and then try to formulate a definition of common tendencies of the landscape character. This paper provides a landscape inventory matrix for research in the field stu­dies of landscape identification at the local planning level. The duration of the research was from 2010 to 2012. The research includes 42 territories starting with the three most densely developed areas in Latvia: in Latgale, Kurzeme and Vidzeme uplands distribution ranges. The research results reflect tendencies of the landscape features assessed according to the previously developed criteria of ecological aspects.

Proceedings on the seminar on small hydroelectric installations: Practice report and current development; Beitraege zum Seminar Kleinwasserkraft: Praxis und aktuelle Entwicklung

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-12-31

This seminar on small hydroelectric installations informs on aspects of construction and administrative aspects. But above all, questions of machinery are dealt with. The book gives an overview of turbine types, topical recent developments in the sector of small hydroelectric power stations, and modern opportunities for fast and inexpensive design of power station components. Beyond the discussion of technical issues, the seminar wants to further contacts between science, turbine manufacturers, consultants and plant operators. (orig.) [Deutsch] Das Seminar Kleinwasserkraft gibt eine Uebersicht ueber bauliche Gestaltung und behoerdliche Aspekte. Vorallem behandelt es aber maschinenbauliche Problemstellungen. Es zeigt einen Ueberblick ueber Turbinentypen, aktuelle Neuentwicklungen im Kleinwassersektor, sowie moderne Moeglichkeiten zum schnellen und preiswerten Design von Kraftwerkskomponenten. Neben dem technischen Teil dient das Seminar auch der Foerderung des Kontakts zwischen Wissenschaft, Turbinenherstellern, Consultants und Anlagenbetreibern. (orig.)

Influence of the Amazon Hydrological Regime on Eutrophication Indicators of a Hydroelectric Power Plant Reservoir.

Science.gov (United States)

Freire, Jean Carlos A; Hauser-Davis, Rachel Ann; da Costa Lobato, Tarcísio; de Morais, Jefferson M; de Oliveira, Terezinha F; F Saraiva, Augusto Cesar

2017-05-01

Dam constructions in the Amazon have increased exponentially in the last decades, causing several environmental impacts and serious anthropogenic impacts in certain hydroelectric power plant reservoirs in the region have been identified. The assessment of the trophic status of these reservoirs is of interest to indicate man-made changes in the environment, but must take into account the hydrological cycle of the area. This can be relevant for environmental management actions, aiding in the identification of the ecological status of water bodies. In this context, physico-chemical parameters and eutrophication indicators were determined in a hydroelectric power plant reservoir in the Brazilian Amazon to assess trophic variations during the regional hydrological regime phases on the reservoir, namely dry, filling, full and emptying stages. The local hydrological regimes were shown to significantly influence TSS and turbidity, as well as NH 4 , NO 3 , PO 4 , with higher values consistently observed during the filling stage of the reservoir. In addition, differences among the sampling stations regarding land use, population and anthropogenic activities were reflected in the PO 4 3- values during the different hydrological phases.

The winning cards of small-scale hydroelectric power in the prevention of greenhouse effect

International Nuclear Information System (INIS)

Chabot, B.

1991-01-01

Among global environment problems, the risk of global warming is one of the most important. This risk and the associated climatic or socio-economic disorders are in relationships with the growth of greenhouse gases content in the atmosphere, connected with massive fossil fuels uses. This paper presents the advantages of small-scale hydroelectric power, often ignored, which can be a substitution energy source. 14 refs., 4 figs

Environment and hydroelectricity colloquium - Synthesis

International Nuclear Information System (INIS)

Aelbrecht, Denis; Abadie, Marc; Baril, Dominique; Delacoux, Jean-Yves; Delaunay, Alexis; Loudiere, Daniel; Penalba, Anne; Pont, Didier; Rocq, Sylvie; Roult, Didier; Sheibani, Neda; Thevenet, Regis; Weisrock, Ghislain

2010-10-01

This document proposes a synthesis of a colloquium dedicated to the interactions between hydroelectric installations and the environment. The four sessions respectively addressed the impacts of hydroelectric installations on ecosystems and more particularly on pisciculture populations (strategies for migration restoration, development of fish-friendly turbines), the sedimentary management of hydroelectric installations, the implementation of the Water Framework European Directive (Austrian experience, biological assessment criteria), and examples of environmental integration of existing or projected installations

Energy harvesting from hydroelectric systems for remote sensors

Directory of Open Access Journals (Sweden)

Joaquim Azevedo

2016-10-01

Full Text Available Hydroelectric systems are well-known for large scale power generation. However, there are virtually no studies on energy harvesting with these systems to produce tens or hundreds of milliwatts. The goal of this work was to study which design parameters from large-scale systems can be applied to small-scale systems. Two types of hydro turbines were evaluated. The first one was a Pelton turbine which is suitable for high heads and low flow rates. The second one was a propeller turbine used for low heads and high flow rates. Several turbine geometries and nozzle diameters were tested for the Pelton system. For the propeller, a three-bladed turbine was tested for different heads and draft tubes. The mechanical power provided by these turbines was measured to evaluate the range of efficiencies of these systems. A small three-phase generator was developed for coupling with the turbines in order to evaluate the generated electric power. Selected turbines were used to test battery charging with hydroelectric systems and a comparison between several efficiencies of the systems was made.

The development of electric power/energy trading in Norway

International Nuclear Information System (INIS)

Engebretsen, J.D.

1992-01-01

One of the main aims of the Norwegian government is to make the electric power market more effective. A new energy law has been passed and other initiatives have been taken which have altered the framework of the conditions for electricity production and sales in Norway. The proposition for trading electric power and the development of new policies for calculating transmission tariffs has been dealt with in addition to plans for the extent of the development of hydroelectric power. Norway is the world's sixth largest producer of hydroelectricity. The domestic supply of electricity is described as well as the nature of the reorganization of the transmission of electricity and Norwegian foreign trade proposals within this area. The government is interested in taxing with regard to production instead of on the power itself in order to stimulate better energy economy. It is important that this will have a neutral effect between export and domestic consumption when contract sales to abroad are initiated. A more efficient electric power market will profit Norwegian society. Statistical data are included. (AB)

Economic aspects of hydroelectric power scheme rehabilitation

International Nuclear Information System (INIS)

Dupuy, M.

1991-01-01

As part of the management of a utility, it is necessary to check, beyond the technical aspect, the economic suitability of deciding whether to perform the maintenance or rehabilitation of an installation. The decision criteria involved are to be found within the framework of the utility's management system itself. After having set out the decision-making process of hydroelectric power station maintenance or rehabilitation, the document goes on to give a description of the economic advantage of such an operation. The latter is determined after having properly defined the overall cost of maintenance or rehabilitation: direct expenses and induced costs, and expected savings: economic performance, short and medium-term reduction of expenses as a result of the profitability and productivity of the rehabilitation. The profitability is calculated as the ratio between the economic balance and the amount of the operation. Productivity means the improvement of the utility's management indicators. The random aspect of savings and a simple method making it possible to integrate them into a calculation is mentioned, as well as the classification and aggregation of various operations of a similar nature that have to come into the budget requirements of the utility. (Author)

76 FR 76156 - Grand Coulee Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted...

Science.gov (United States)

2011-12-06

... Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted for Filing and... Federal Power Act (FPA), proposing to study the feasibility of the Scooteney Outlet Drop Hydroelectric..., Grand Coulee Project Hydroelectric Authority, P.O. Box 219, Ephrata, WA 98823; phone: (509) 754-2227...

Fiscal 2000 report on the international joint verification of photovoltaic power generation system. Verification of hybrid system comprising photovoltaic power generation system and micro-hydroelectric power generation systems; 2000 nendo taiyoko hatsuden system kokusai kyodo jissho kaihatsu hokokusho. Taiyoko micro suiryoku hybrid system jissho kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-06-01

Research was conducted in Vietnam for the development of a hybrid system comprising a photovoltaic power generation system and a micro-hydroelectric power generation system. In verification test operation, data measurement had been under way for approximately 18 months since it was started in September 1999. The rate of days on which effective data were obtained throughout this period was 93.4%. Power generated by the micro-hydroelectric power generation system was 19.4kWh/d with so small a capacity factor of 3.2%. The capacity factor of the photovoltaic power generation system was again very small at 4.5% since the amount consumed by the load was as small as 131.0kWh/d. Weather data of solar radiation and precipitation were being collected smoothly. In the study of hybrid system optimization, the effect of inductor generator activation upon the inverter was taken up. In the study of capacity balance optimization between the constituent elements of the hybrid system, methodology was established and verified, and calculations were carried out. (NEDO)

Study of the regional potential for the development of small hydroelectricity - Final report

International Nuclear Information System (INIS)

Ruillet, Mathieu; Buchet, Eric

2005-01-01

Whereas the potential of small hydroelectric plants in the eastern part of the PACA region, and more generally in the whole region appears to be promising to support energy supply safety, to reduce greenhouse gas emissions, and for local development, this study aimed at making an inventory of existing hydraulic plants (to be renewed or developed for a higher production), of existing weirs to be equipped, and of new sites to be possibly developed (non classified rives, irrigation canals, drinkable water networks). Another objective of this study was to propose a selection among the most promising sites or works. Moreover, the power for these existing or possible installations ranges from 100 kW to 10 MW. After a presentation of the adopted methodology, lists of sites are provided, as well as more detailed presentations of selected sites

Basic strategical principles regarding Romanian power development after the year 2000

International Nuclear Information System (INIS)

Hotopeleanu, S.; Petrescu, C.

1996-01-01

This study deals with the the basic strategies for long term power planning in Romanian economy taking into account socio-economic factors, refurbishment and restructuring, having in view the requirements of free market economy transition. The main directions of this strategy refer to the development of the present power capacities based on fossil fuel burning and hydroelectric power and also to the development of nuclear power plants based on CANDU type reactors. (author) 3 tabs

Impacts of the operation of existing hydroelectric developments on fishery resources in British Columbia

International Nuclear Information System (INIS)

Hirst, S.M.

1991-01-01

The main features of 46 hydroelectric dams and diversions in British Columbia are reviewed, and available information on the inland sport fish resources within and below the impoundments are summarized. The projects are collectively responsible for ca 95% of the electrical power used in the province. The characteristics detailed include water license and operational constraints, electrical generation, enhancement facilities, operational regime, physical and chemical environment, downstream system, sportfish populations, and recreational fishery. All the hydroelectric impoundments reviewed, with the possible exceptions of some small headponds, support sport fish populations. Recreational angling quality is considered good for about one quarter of impoundments for which information is available. Low population density is the dominant reason for poor angling quality. Drawdowns exceeding 10 m annually and/or low water retention times are significant impediments to sport fish stock densities. Recommended measures to improve sport fishery resources in and below hydroelectric impoundments include evaluation of the efficiency of ongoing compensation programs, improvement to impact assessment procedures to ensure adequate documentation of pre- and post-impoundment conditions, and enhancement of several systems through stock or nutritional supplementation. 161 refs., 95 figs., 9 tabs

Romanian achievement in hydro-power plants

International Nuclear Information System (INIS)

Cardu, M.; Bara, T.

1998-01-01

This paper briefly deals with the achievements relating to Hydro-electric Power Plants within the process of development of the National Power System in Romania. Also presented is the Romanian industry contribution to hydro-electrical power plant equipment manufacturing. (author)

The Hydroelectric Business Unit of Ontario Power Generation Inc

International Nuclear Information System (INIS)

Gaboury, J.

2001-01-01

The focus of this presentation was on the generation and sale of electricity. Prior to deregulation, companies that generated electricity had a readily available customer base to whom the electricity could be sold. The author discussed some of the changes affecting the industry as a result of deregulation of the electricity market in Ontario: the increasing number of companies, as well as the increased number of generators supplying power within the province. Currently 85 per cent of the generation in Ontario is met by Ontario Power Generation (OPG) and this percentage will decrease through de-control. De-control can be achieved in a variety of ways, either through the sale of assets, leases, asset swaps. The market rules dictate that OPG not control in excess of 35 per cent of the generation supply in Ontario, OPG is examining the situation. New supply being constructed or new interconnections with neighboring markets could affect the total assets that would have to be de-controlled. OPG has a mix of generation that includes hydroelectric, fossil, and nuclear, as well as a single wind turbine. Green power, defined as electricity generation deemed less intrusive environmentally than most traditional generation, includes wind, water, landfill gas, solar and others, and could affect the mix of generation. It is expected that there will be a niche market for green power, especially when one considers the reduction in emissions. It could represent a viable option for smaller startup companies, as less capital is required. The options for selling the power, either to the spot market or by entering into a bilateral contract with another customer, were explained

Synanthropy of mosquitoes and sand flies near the Aimorés hydroelectric power plant, Brazil.

Science.gov (United States)

Barata, R A; Ursine, R L; Nunes, F P; Morais, D H; Araújo, H S

2012-12-01

The environmental changes resulting from the construction of hydroelectric dams may affect the fauna of insect vectors and consequently the epidemiology of the diseases they transmit. This work examined the mosquito and sand fly fauna in the area of the Aimorés hydroelectric power plant, analyzing the seasonal distribution and the degree of species synanthropy in different ecotopes. Between November, 2008 and September, 2009, entomological captures were performed with the help of HP light traps in the rural, urban, and forest areas of Aimorés, Ituêta, Resplendor, and Baixo Guandu counties. The fauna proved to be quite diversified. Twenty-two species of mosquitoes and 11 species of sand flies were found. Culex quinquefasciatus was predominant among mosquitoes (76.7%), while Lutzomyia intermedia prevailed among sand flies (34.5%). Some of the captured species have medical interest. Supported by the high degree of synanthropy, those species reinforce the need for epidemiological surveillance. © 2012 The Society for Vector Ecology.

[The mosquito fauna (Diptera: Culicidae) of the environs of the Sayan-Shushenskoe hydroelectric power station].

Science.gov (United States)

Gornostaeva, R M

1999-01-01

Among females and larvae of mosquitoes collected in 1969, 1981-1984 in the area of the Sayan-Shushenskoe hydroelectric power station (140 km up the Yenisei River from the Abakan city) 5 genera and 30 species were recorded. Based on recent collections and reference data (Gornostaeva e. a., 1969; Gornostaeva, Danilov, 1986) the fauna of the region in question includes 31 species of mosquitoes (Anopheles--1, Culiseta--2, Coquillettidia--1, Aedes--22, Culex--5).

The stakes of the hydroelectric power in the integrated management of the Basins. Which place for the EPTB; Les enjeux de l'hydroelectricite dans la gestion integree des bassins versants. Quelle place pour les EPTB

Energy Technology Data Exchange (ETDEWEB)

NONE

2003-12-01

In the framework of a sustainable development, the EPTB (Public, Territorial Institutions of Basins) need an evolution of the regulations concerning the management of the hydroelectric power (areas of the Adour, Dordogne, Garonne and Lot). This document presents in two parts the context and the stakes of the hydroelectric concession: the concessions specifications and the analysis of the main articles, the tariffs, taxes and the environment constraints. (A.L.B.)

Central hydroelectric of Santa Ana

International Nuclear Information System (INIS)

Pardo A, German

2000-01-01

The paper is related to the construction of an alternating tunnel of conduction to take advantage of the available hydraulic load among the Wiesner Plant and Santa Ana's tanks and of Suba, works required to build a hydroelectric power station with a generation capacity of approximately of 12 MW

[Space-time water monitoring system at the Iriklinsk hydroelectric power station].

Science.gov (United States)

Deriabin, D G; Poliakov, E G; Priakhina, A A; Karimov, I F

2002-01-01

The Microbiosensor B 17677 F test system was applied to make a space-time monitoring of the biotoxicity of water used for production and everyday purposes at the Iriklinsk hydroelectric power station (IHEPS) and to identify the leading causes determining the biotoxicity of tested samples. There were seasonal variations in the biotoxicity with the maximum in spring and with minimum in winter and spring and a relationship of the spring rise in the biotoxicity to water pH changes. There was also an association of the certain values of the biotoxicity of industrial water with the concentration of petroleum products that are major pollutants at the IHEPS. The datum points that characterize the maximum level of technogenic exposure were identified.

The environment and the hydroelectric in Amazonia

International Nuclear Information System (INIS)

La Rovere, E.L.

1992-01-01

Some aspects about social and environmental impacts due to the hydroelectric power plants constructed in Amazonia region are presented, including considerations of energy planning and management with international example. (C.G.C.)

Cumulative impacts of hydroelectric development on the fresh water balance in Hudson Bay

International Nuclear Information System (INIS)

Anctil, F.; Couture, R.

1994-01-01

A study is presented of the impacts of hydroelectric development on the surface water layer of Hudson Bay, including James Bay and the Foxe Basin. These impacts are directly related to the modifications in the fresh water balance of Hudson Bay and originate from the management of hydroelectric complexes. The fresh water balance is determined by identifying, at different scales, the modifications caused by each complex. The main inputs are the freezing and thawing of the ice cover, runoff water, and mass exchange at the air-water interface. Three spatial scales were used to obtain the resolution required to document the cumulative effects of fresh water balance modifications on the water surface layer, one each for Hudson Bay, Hudson Strait, and the Labrador Sea. Finally, the addition of the proposed Great Whale hydroelectric complex is examined from the available information and forecasts. 18 refs,. 6 figs., 1 tab

Turbulence at Hydroelectric Power Plants and its Potential Effects on Fish.

Energy Technology Data Exchange (ETDEWEB)

Cada, Glenn F.; Odeh, Mufeed

2001-01-01

The fundamental influence of fluid dynamics on aquatic organisms is receiving increasing attention among aquatic ecologists. For example, the importance of turbulence to ocean plankton has long been a subject of investigation (Peters and Redondo 1997). More recently, studies have begun to emerge that explicitly consider the effects of shear and turbulence on freshwater invertebrates (Statzner et al. 1988; Hart et al. 1996) and fishes (Pavlov et al. 1994, 1995). Hydraulic shear stress and turbulence are interdependent natural fluid phenomena that are important to fish, and consequently it is important to develop an understanding of how fish sense, react to, and perhaps utilize these phenomena under normal river flows. The appropriate reaction to turbulence may promote movement of migratory fish or prevent displacement of resident fish. It has been suggested that one of the adverse effects of flow regulation by hydroelectric projects is the reduction of normal turbulence, particularly in the headwaters of reservoirs, which can lead to disorientation and slowing of migration (Williams et al. 1996; Coutant et al. 1997; Coutant 1998). On the other hand, greatly elevated levels of shear and turbulence may be injurious to fish; injuries can range from removal of the mucous layer on the body surface to descaling to torn opercula, popped eyes, and decapitation (Neitzel et al. 2000a,b). Damaging levels of fluid stress can occur in a variety of circumstances in both natural and man-made environments. This paper discusses the effects of shear stress and turbulence on fish, with an emphasis on potentially damaging levels in man-made environments. It defines these phenomena, describes studies that have been conducted to understand their effects, and identifies gaps in our knowledge. In particular, this report reviews the available information on the levels of turbulence that can occur within hydroelectric power plants, and the associated biological effects. The final section

The stakes of the hydroelectric power in the integrated management of the Basins. Which place for the EPTB; Les enjeux de l'hydroelectricite dans la gestion integree des bassins versants. Quelle place pour les EPTB

Energy Technology Data Exchange (ETDEWEB)

NONE

2003-12-01

In the framework of a sustainable development, the EPTB (Public, Territorial Institutions of Basins) need an evolution of the regulations concerning the management of the hydroelectric power (areas of the Adour, Dordogne, Garonne and Lot). This document presents in two parts the context and the stakes of the hydroelectric concession: the concessions specifications and the analysis of the main articles, the tariffs, taxes and the environment constraints. (A.L.B.)

Operator training for the Yacyreta binational hydroelectric power plant; Formacion de operadores para la Central Hidroelectrica de Yacireta

Energy Technology Data Exchange (ETDEWEB)

Dure, Francisco; Tachella, Heriberto [Entidad Binacional Yacyreta, Isla Yacireta (Paraguay). Central Hidroelectrica Yacyreta]. E-mail: yacyreta@internet.siscotel.com

1998-07-01

This work is oriented to the power plant operators, by exposing the criteria and methods adopted for operators selection, training and incorporation to the Yacyreta Hydroelectric Power Plant. The used criteria considered some aspects, as follows: the operation staff should be consisted of equal numbers of Argentine and Paraguayan nationalities, viewing the both systems operation; experience of the shift supervisors in operating a plant for a minimum of 10 years; the supervisors should participate training the auxiliary operators.

Policy for rekindling and re-powering of small scale hydroelectric power plants; Politica de rejuvenescimento e repotenciacao de PCH`s

Energy Technology Data Exchange (ETDEWEB)

Souza, Wanderley I. de [Companhia Paulista de Forca e Luz (CPFL), Campinas, SP (Brazil). Div. de Geracao

1997-12-31

The demand of electric energy comes increasing gradually and the offer of energy with of growth of the market, becomes a product, a great concern. In this matter Small Hydroelectric Power Plant SHP`s can be fundamental to offer support to the electric section, but these small sources of energy need to be adapting rekindling and repowering, being used of new market technologies and of economic studies that can give reliability and speed in the evaluations of the processes. (author)

The performance study of a small hydroelectric power system

International Nuclear Information System (INIS)

Al-Jumaily, Khalil E. J.; Tawfi, Sinan Samir

2006-01-01

A small hydroelectric power system of an undershot waterwheel was designed, constructed and experimented in the hydraulic channel which has a sluice gate as a small dam. The constructed waterwheel diameter could be changed from 0.4 m to 0.6 m at interval steps of 0.04 m. The number of blades of the constructed waterwheel could be changed from 9 to 12 to 18 and to 36 blades. By increasing the water mass flow rate from 0.341 to 1.765 kg/s at channel cross sectional area (12.75 cm 2 ), the undershot waterwheel generated power which increased to 0.201 Watt, the mechanical efficiency increased to more than 10.8%, and the electrical efficiency increased to more than 80.6%. But the channel efficiency was decreased to 10.9%. while the volumetric efficiency was fixed at 72.9%. The waterwheel efficiency 17.25 m 2 at fixed water mass flow rate (1.765kg/s), the undershot waterwheel generated power system decreased in the following. The generator output power from 0.201 to 0.067 Watt, the mechanical efficiency reduced to 26.7% and the electrical efficiency reduced 94.4% and increased the channel efficiency from 8.6% to 100%, the volumetric efficiency from 70.9% to 75.5%, and the waterwheel efficiency from 85.7%( to 91.3%. The transitional efficiency was fixed at 97.9%. The maximum overall efficiency of the small generated power system was 6.69% at the water head 15.45 cm. The output power was 0.18 Watt. these values obtained when the number of blades 36, number of revolutions per minute 57 rpm, waterwheel diameter 0.44 m, water mass flow rate 1.765 kg/s, and channel cross sectional area 12.75 cm 2 . The theoretical extrapolation of the waterwheel diameter to 2 m with water head of 5 m gives an output generated power of 675 Watt.(Author)

The Feasibility of Small Hydro-Electric Generation in a Large Urban Area

OpenAIRE

Benson Y. Zhang; Adam Taylor

2012-01-01

The possibilities of generating electric power from relatively small hydro-electric sources in a large urban area is investigated. Two different aspects of hydro-electric sources have been studied: storm/waste water pipes in large multi-tenanted residential buildings and urban storm water discharge area (CSI area). The potential to generate from these sources has been investigated using a micro-turbine. The potential electric power which could be extracted from the sources was estimated using...

The Amazon Hydroelectric Dams, an Internal Geopolitical Issue in Brazil

International Nuclear Information System (INIS)

Broggio, Celine; Droulers, Martine; Pallamar, Juan-Pablo

2017-01-01

This paper develops a geopolitical analysis of dams and hydroelectric plants in the Brazilian Amazon since the mid-2000's. The implementation of these projects has provoked tensions within the federal government under the presidency of the Workers' Party and accelerated the erosion of the ideological and political platform called 'socio-environmentalism', a situation that has led to the break-up of the coalition leading to the political crisis of 2016 and the impeachment of President Dilma Rousseff. From a regional point of view, the dispute occurred in very different terms in the case of the Madeira hydroelectric power stations (Santo Antonio and Jirau in Rondonia) and in the case of the Xingu dam (Belo Monte in Para), worldwide covered by the media

Economic performance of small scale hydroelectric power plants: `Results center`; Desempenho economico de PCH`s: centro de resultados

Energy Technology Data Exchange (ETDEWEB)

Cipoli, Jose Adolfo; Silva, Jose Paulo Mendes [Companhia Paulista de Forca e Luz (CPFL), Campinas, SP (Brazil)

1995-12-31

This work presents the experience concerning the creation of an imaginary company named `CPFL Generator`, composed by 20 small scale hydroelectric power plants. The main idea of the project is to analyse the economic performance of each unit individually and the group as a company, enabling to a better quality management 3 refs., 1 fig., 7 tabs.

Short term hydroelectric power system scheduling with wind turbine generators using the multi-pass iteration particle swarm optimization approach

International Nuclear Information System (INIS)

Lee, T.-Y.

2008-01-01

This paper uses multi-pass iteration particle swarm optimization (MIPSO) to solve short term hydroelectric generation scheduling of a power system with wind turbine generators. MIPSO is a new algorithm for solving nonlinear optimal scheduling problems. A new index called iteration best (IB) is incorporated into particle swarm optimization (PSO) to improve solution quality. The concept of multi-pass dynamic programming is applied to modify PSO further and improve computation efficiency. The feasible operational regions of the hydro units and pumped storage plants over the whole scheduling time range must be determined before applying MIPSO to the problem. Wind turbine power generation then shaves the power system load curves. Next, MIPSO calculates hydroelectric generation scheduling. It begins with a coarse time stage and searching space and refines the time interval between two time stages and the search spacing pass by pass (iteration). With the cooperation of agents called particles, the near optimal solution of the scheduling problem can be effectively reached. The effects of wind speed uncertainty were also considered in this paper. The feasibility of the new algorithm is demonstrated by a numerical example, and MIPSO solution quality and computation efficiency are compared to those of other algorithms

Standardization of electric projects of small hydroelectric power plants; Padronizacao de projetos eletricos de pequenas centrais hidreletricas

Energy Technology Data Exchange (ETDEWEB)

Lima, Roberth dos Santos

2002-07-01

This work presents a standardizing proposal for Electrical Projects of small hydroelectric central and it has as objective to optimize some solutions for the most cases, considering the great diversity of options. The development of the dissertation is the result of several real cases of projects of hydroelectric centrals. Besides the projects, several bibliographies about the case which is being studied were researched, taking into consideration the entire proposal presented to the respective authors and, finally, as synthesis to all observations made in that study, the presentation of an optimized solution for the job of the electrical components and a proposal for the estimate of costs of those components. The conclusions of this work present a favorable result because they offer an initial proposal for the standardizing of information considered extremely important for the carrying out of a project of hydroelectric central. (author)

Systematic Sustainability Assessment (SSA) Tool for Hydroelectric Project in Malaysia

Science.gov (United States)

Turan, Faiz Mohd; Johan, Kartina

2017-08-01

Sustainably developed and managed hydropower has enormous potential to contribute to global sustainability goals. It is known that hydroelectricity contributing small amounts to greenhouse gas emissions and other atmospheric pollutants. However, developing the remaining hydroelectric potential offers many challenges, and public pressure and expectations on the environmental and social performance of hydroelectric tend to increase over time. This paper aims to develop Systematic Sustainability Assessment (SSA) Tool that promotes and guides more sustainable hydroelectric projects in the context of Malaysia. The proposed SSA tool which not only provide a quality and quantitative report of sustainability performance but also act as Self-Assessment Report (SAR) to provide roadmap to achieve greater level of sustainability in project management for continuous improvement. It is expected to provide a common language that allow government, civil society, financial institutions and the hydroelectric sector to talk about and evaluate sustainability issues. The advantage of SSA tool is it can be used at any stage of hydroelectric development, from the earliest planning stages right through to operation.

Hydroelectric dams in Amazon as source of GHG

International Nuclear Information System (INIS)

Rosa, L.P.; Schaeffer, R.; Santos, M.A.

1996-01-01

A recent paper by Fearnside points out that hydroelectric development in Amazonia is a significant source of greenhouse gases (GHG) emissions. This conclusion is in contrast to the common belief that hydroelectric dams are better than fossil fuel use in electric power generation, from the view point of GHG emissions. The authors have considered both CH 4 and CO 2 emissions taking into account the instantaneous radiative forcing due to a unit increase in the concentration of gases, the decay times of gases in the atmosphere and the emissions patterns of emissions vary depending on biomass density and type of the forest area flooded, as well as on depth of flooding. As the Fearnside paper is more concerned with CO 2 emissions from the above water biomass, the authors' focus will be restricted to the formulae for calculating the cumulative effect of CO 2

The hydrogen economy urgently needs environmentally sustainable hydroelectricity

International Nuclear Information System (INIS)

Goodland, R.

1995-01-01

Only two sources of energy were said to have the capacity to bridge the transition to fully sustainable and renewable energy, namely natural gas and hydro. The argument was made that because of this advantage, both forms will have to be promoted fast, since the transition to sustainable energy is urgent. In so far as natural gas supplies are concerned, it was estimated that they will last for perhaps the next 50 years, whereas hydroelectric potential is practically unlimited. Developing nations could vastly accelerate their development, reduce poverty and approach sustainability by exporting hydro to industrial countries. Similarly, industrial nations switching from fossil fuels to hydrogen could move up the environmental ranking, and significantly help alleviating global pollution and climate risks. Environmental ranking of new energy sources, world reservoirs of hydroelectric power, environmental and social ranking of hydro sites, the environmental impacts of hydro projects, and the concept of environmental sustainability in hydro reservoirs, were summarized. Greater acceptance of the need for sustainable development by the hydro industry was urged, along with more care in selecting hydro development sites with sustainability as a prime objective. 23 refs., 6 figs

Daily storage management of hydroelectric facilities

NARCIS (Netherlands)

Chappin, E.J.L.; Ferrero, M.; Lazzeroni, P.; Lukszo, Z.; Olivero, M.; Repetto, M.

2012-01-01

This work presents a management procedure for hydroelectric facilities with daily storage. The water storage gives an additional degree of freedom allowing to shift in time power production when it is more convenient and to work at the maximum efficiency of hydraulic turbine. The management is

Environmental Impact Assessment: Uri hydroelectric power project on River Jhelum in Kashmir, India

International Nuclear Information System (INIS)

Nyman, L.

1995-09-01

This report is an Initial Aquatic Environmental Impact Assessment of the Uri Hydroelectric Power Project on River Jhelum in Kashmir, India. It includes the Terms of Reference of the assessment, a discussion on biodiversity and threats to it, the environmental indicators used to monitor and predict the impacts, a description of the physical, chemical and biological prerequisites of the River Jhelum ecosystem, a description of the survey sites chosen, and an overview of the present fish and bottom fauna. Finally, there are sections on the potential impacts on biota of the Uri Project and a list of proposals for how mitigating and enhancing measures could be enforced

Development of water demand coefficients for power generation from renewable energy technologies

International Nuclear Information System (INIS)

Ali, Babkir; Kumar, Amit

2017-01-01

Highlights: • Water consumption and withdrawals coefficients for renewable power generation were developed. • Six renewable energy sources (biomass, nuclear, solar, wind, hydroelectricity, and geothermal) were studied. • Life cycle water footprints for 60 electricity generation pathways were considered. • Impact of cooling systems for some power generation pathways was assessed. - Abstract: Renewable energy technology-based power generation is considered to be environmentally friendly and to have a low life cycle greenhouse gas emissions footprint. However, the life cycle water footprint of renewable energy technology-based power generation needs to be assessed. The objective of this study is to develop life cycle water footprints for renewable energy technology-based power generation pathways. Water demand is evaluated through consumption and withdrawals coefficients developed in this study. Sixty renewable energy technology-based power generation pathways were developed for a comprehensive comparative assessment of water footprints. The pathways were based on the use of biomass, nuclear, solar, wind, hydroelectricity, and geothermal as the source of energy. During the complete life cycle, power generation from bio-oil extracted from wood chips, a biomass source, was found to have the highest water demand footprint and wind power the lowest. During the complete life cycle, the water demand coefficients for biomass-based power generation pathways range from 260 to 1289 l of water per kilowatt hour and for nuclear energy pathways from 0.48 to 179 l of water per kilowatt hour. The water demand for power generation from solar energy-based pathways ranges from 0.02 to 4.39 l of water per kilowatt hour, for geothermal pathways from 0.04 to 1.94 l of water per kilowatt hour, and for wind from 0.005 to 0.104 l of water per kilowatt hour. A sensitivity analysis was conducted with varying conversion efficiencies to evaluate the impact of power plant performance on

ORSIM, Nuclear Fuel, Fossil Fuel Hydroelectric Power Plant Cost and Economics

International Nuclear Information System (INIS)

Prince, B.E.; Turnage, J.C.

1984-01-01

1 - Description of problem or function: ORSIM is an electric power generating system integration model which simulates the multi-year operation of a mixed power system consisting of fossil, nuclear, hydroelectric, and pumped-storage units. For any specified refueling schedule for nuclear units and future load forecast, the model determines a plan of operation for the system which attempts to minimize the total discounted operating cost over a specified study period. The analysis considers the effects of forced outages, spinning reserve operating constraints, and scheduled introduction and retirement of generating stations. The model determines a maintenance schedule for the non-nuclear stations (nuclear stations are maintained during refueling outages) and the optimum allocation of energy-fixed nuclear and hydroelectric resources. It calculates the expected energy generated by each station in the system, by period over the planning horizon, based on input or calculated incremental operating cost. It also calculates the expected loss-of- load probability and un-served energy demand for each period in the planning horizon. An optimum operating plan, designed to minimize the discounted total production cost, is then calculated, as are the costs of operating each station in the system and the discounted total production cost for the derived plan of operation. 2 - Method of solution: ORSIM searches for a particular mode of operation which, over a multi-year planning horizon, will minimize the total system operating cost of a particular electric power generation system discounted to the beginning of the planning horizon. It does this by: (a) calculating the planned maintenance outages for all units; (b) estimating the incremental discounted cost of energy produced by each station in the system for every subinterval of the planning horizon; (c) utilizing the incremental discounted costs of energy generation to calculate, via probabilistic simulation, the economic optimum

Actual state and perspectives of the small hydroelectric plants in Colombia

International Nuclear Information System (INIS)

Torres Q, E.; Castillo C, J.J.

1995-01-01

In this article, the actual state of the small-scale hydroelectric power plants (PCHs, abbreviations in Spanish) in Colombia in aspects as: Statistic of the water in Colombia, a brief historical review and the characteristics of the PCHs in Colombia, is present. The development PCHs, the executing projects and the actions that has been develop by the INEA (Institute of Nuclear Sciences and the Alternative Energies) is described

Final Technical Report. Upgrades to Alabama Power Company Hydroelectric Developments

Energy Technology Data Exchange (ETDEWEB)

Crew, James F. [Southern Company Generation, Birmingham, AL (United States). Hydro Services; Johnson, Herbie N. [Southern Company Generation, Birmingham, AL (United States). Hydro Services

2015-03-31

From 2010 to 2014, Alabama Power Company (“Alabama Power”) performed upgrades on four units at three of the hydropower developments it operates in east-central Alabama under licenses issued by the Federal Energy Regulatory Commission (“FERC”). These three hydropower developments are located on the Coosa River in Coosa, Chilton, and Elmore counties in east-central Alabama.

Framework of systematic sustainability assessment strategy (FSSAS) for hydroelectric power industry in Malaysia

Science.gov (United States)

Johan, Kartina; Turan, Faiz Mohd

2017-08-01

Hydroelectric power is an alternative power resource in Malaysia and always associated with negative impact on environmental, social and economy of the surrounding site. The dispute over environmental, societal and economic issues can be minimised if compliance to sustainability development requirement is included in the project as part of the project premises during planning phase. This paper suggests a framework targeted for decision-makers in charge of implementing the projects to produce hydropower the sustainable way in Malaysian context which can mitigate the risks in social, environment and economy. The framework is strategic in nature and based on project management methodology with objective to provide a ‘common language’ by having a project value as measureable for stakeholders to state their mutual agreement of what a sustainable hydropower project in the context of Malaysia and in line with the United Nations (UN) 17 Sustainable Development Goals (SDGs). The paper discusses how the proposed systematic sustainability assessment strategy (FSSAS) framework support the call for Malaysia to promote meaningful public participation in ensuring land and natural resource decisions and to address citizens’ interests which is the core idea of Environmental Democracy Index established in 2014. The paper argues that, even though it is at present impossible to define precision status of sustainability development with respect to the nature of the multi stakeholders and the lack of systematic assessment the proposed FSSAS framework can be a valuable tool because it tracks the project value as a quantitative deliverable to determine the status of the journey in sustainable development towards accomplishing the SDG under a consensus in hydropower industry of any scale over time.

Evaluation of our hydroelectric resources

International Nuclear Information System (INIS)

Unsal, Istemi; Onoz, Bihrat

2006-01-01

regulate the regimes of the rivers in our country are not yet constructed; the definitions of primary and secondary energy we have been using are not suiting the country's conditions. Other than that, it has been seen that no change in unit prices of primary and secondary energies and that of peak power contribution has been made by DSI and significant differences with EIEI (General Directorate of Electrical Power Resources Survey and Development Administration) unit prices have been detected. In the study, additionally, resources occupying the agenda while planning and diversifying energy have been compared from the point of view of different characteristics, total costs and harmony with the country's conditions. Other than that, an evaluation of 2005-2020 period planning by ETKB has been made. 2 scenarios thought of for the need increase have been taken as main issues for the analysis. From time to time some interpretations using 2005 data have been made as there is excess energy in our country and as old scenarios are exaggerated. According to 2005 data, it seems that there is an excess of 20% in our existing production capacity and 36.9% in our peak power capacity.Along with this the concepts of excess and sparing should not be confused. In scenarios prepared by ETKB the annual electrical energy demand increase is assumed to be 7.9% and 6.4%. However, it is seen above that in average it was 8.21% in 1980-2000 period and in average 7.33% in 2001-2005 period. Under these conditions the low increase scenario foreseen by ETKB is far below both of the realized increases and it does not seem probable to explain why it is selected that low. On the other hand, though the high scenario remains relatively higher than the demand increase within the years just after the economic crisis in 2000-2001, it remains lower than the previous 20-year average. That is why it is difficult to accept that the suggested solutions will be sufficient. ETKB does not seem very consistent in groups

Canton hydroelectric project: feasibility study. Final report, appendices

Energy Technology Data Exchange (ETDEWEB)

1979-05-01

These appendices contain legal, environmental, regulatory, technical and economic information used in evaluating the feasibility of redeveloping the hydroelectric power generating facilities at the Upper and Lower Dams of the Farmington River at Collinsville, CT. (LCL)

Neural network based inspection of voids and karst conduits in hydro-electric power station tunnels using GPR

Science.gov (United States)

Kilic, Gokhan; Eren, Levent

2018-04-01

This paper reports on the fundamental role played by Ground Penetrating Radar (GPR), alongside advanced processing and presentation methods, during the tunnel boring project at a Dam and Hydro-Electric Power Station. It identifies from collected GPR data such issues as incomplete grouting and the presence of karst conduits and voids and provides full details of the procedures adopted. In particular, the application of collected GPR data to the Neural Network (NN) method is discussed.

Feasibility assessment, Lowell Hydroelectric Project

Energy Technology Data Exchange (ETDEWEB)

1979-04-01

The results are presented of a feasibility analysis for hydroelectric generating facilities on the Merrimack River at Lowell, Massachusetts. The projected facility would utilize the existing Pawtucket Dam and a portion of the existing Northern Canal. The project was examined for economic, engineering, and environmental viability, and the results are favorable. The owners intend to proceed to the next step of negotiating a firm power purchase agreement.

Which hydroelectric potential in your region?

International Nuclear Information System (INIS)

2011-01-01

Illustrated by photos, maps, figures and graphs, this Power Point presentation outlines the important remaining potential of hydroelectricity in France: 10.6 TWh. It indicates how this potential has been assessed and calculated. Even if possibilities exist everywhere (either by building new dams or by exploiting existing weirs), four regions present a higher potential for new works: Rhone-Alpes, Midi-Pyrenees, Auvergne, and Provence-Alpes-Cote d'Azur. Maps indicate the concerned rivers and locations in some regions. Such projects which could boost economic local, regional and national development must be designed while taking planning tools into account (notably the climate-air-energy regional schemes), and rules related to river preservation

Formation of a local Abramis brama orientalis (BERG) population in the zone of hot effluent from the Konakovo hydroelectric power plant

Energy Technology Data Exchange (ETDEWEB)

Sappo, G B

1976-01-01

Bream (Abramis brama orientalis) inhabitating the part of the Ivan'kovo Reservoir directly exposed to effluent from the Konakovo Hydroelectric Power Plant are smaller and become sexually mature sooner than elsewhere in the reservoir. Moreover, they have longer tail peduncles and anal, thoracic, and dorsal fins than other bream. And, in contrast with the latter, many (20 percent) have two rows of pharyngeal teeth. Thus, the differences in ecological (growth rate, condition factor, spawning times, etc.) and meristic and plastic characters (branched rays, enlarged fins, etc.) as well as in composition of parasites point to the development of an isolated bream population.

The political economy of Canadian hydro-electricity : between old provincial hydros and neoliberal regional energy regimes

International Nuclear Information System (INIS)

Netherton, A.

2007-01-01

In economic terms, hydro-electricity is considered as a quasi-staple, as it prone to the classic staples problem of excess capacity. However, neither water nor hydroelectricity in Canada is produced primarily for export markets. Hydroelectric systems are often thought of as politicized monopolies. This paper discussed changes that have occurred in hydroelectric organizations over time, as they have been governed by a formative mixed regime; postwar provincial hydro systems; a megaprojects regime; and an emerging sustainability regionalization regime. The origins of electricity generation and transmission in Canada were discussed, as well as the ecological footprint of large mega-projects on rivers. The development of provincial hydro monopolies during the mid- to late- twentieth century was also outlined, as well as the sustainability and regionalization regime that developed after 1990. During the mature staples period of the mid-century, rents in hydro-electric organizations were distributed through cheap rates to subsidize and facilitate the development of mass production and mass consumption. However, post-staples consumption has now replaced mass consumption, and demand side management is replacing earlier cheap power policies. Nonetheless, the lack of systematic integration of networks has led to inefficiencies. Provincial grids are now being integrated into interconnected North American regional networks regulated by the United States. It was concluded that the Canadian electricity regime is increasingly influenced by the the supranational role that the United States is playing in structuring markets. 83 refs

Mitigation measures for the La Grande 1 hydroelectric development

International Nuclear Information System (INIS)

Faucher, O.; Gagnon, R.

1992-01-01

Measures to mitigate environmental impacts of the La Grande 1 hydroelectric development are described. An overview is presented of the La Grande 1 project, its surrounding environment, and the principle environmental repercussions of the reservoir, hydrological changes between the dam and river mouth, construction activities and permanent and temporary structures, and presence of workers. Mitigation measures including compensation, corrective measures (deforestation, selective cutting, fish populations, wildlife populations, land rehabilitation, access roads, fisheries, and erosion control), protective measures, enhancement measures, and contract and employment opportunities for the Cree population are described. 10 refs., 2 figs

The Innavik hydroelectric project

Energy Technology Data Exchange (ETDEWEB)

St-Pierre, S.; McNeil, E.; Gacek, J. [RSW Inc., Montreal, PQ (Canada); Atagotaaluk, E. [Pituvik Landholding Corp., Nunavik, PQ (Canada); Henderson, C. [Lumos Energy, Ottawa, ON (Canada)

2009-07-01

The village of Inukjuak in northern Quebec is not connected to the main electrical grid. This remote village is one of 14 Inuit communities in the Nunavik administrative region where electricity is generated by diesel thermal power plants under the direction of Hydro-Quebec Distribution's Isolated Grid subdivision. The heating of water and buildings is supplied by heavy fuel-oil. A compensation program for the price of fuel-oil is applied in the community. This presentation discussed the need for developing renewable energy sources in order to respond to the energy demands of isolated grids. The community of Inukjuak plans on developing the water resources of the Inukjuak River in order to produce hydroelectricity and reduce the use of diesel fuel. Several possible development sites were identified. The project will contribute to a reduction in energy costs while reducing greenhouse gas emissions. Revenues generated from the power plant will help the village in their economic development by enabling the completion of various community projects. The sustainable development approach taken for the project was discussed and the project's main technical, environmental and social issues were identified. The project is expected to reduce the production of an estimated 8 tons of carbon dioxide emissions by 2011 and nearly 15 tons after 10 years of operation.

BLUE GOLD: HYDRO-ELECTRIC RENT IN CANADA

OpenAIRE

Glenn Jenkins; RICHARD ZUKER

1984-01-01

In this study, an attempt is made to develop estimates of the value of economic rent from production of hydro-electricity. These estimates are made for the year 1979, which is the latest period for which a comprehensive set of data was available at the time this work was undertaken. The estimates are developed for the hydro-electricity generated (or used) by electric utilities in four provinces: Quebec (including Churchill Falls), Ontario, Manitoba and British Columbia. These electric systems...

78 FR 62616 - Salmon Creek Hydroelectric Company, Salmon Creek Hydroelectric Company, LLC; Notice of Transfer...

Science.gov (United States)

2013-10-22

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 3730-005] Salmon Creek Hydroelectric Company, Salmon Creek Hydroelectric Company, LLC; Notice of Transfer of Exemption 1. By letter filed September 23, 2013, Salmon Creek Hydroelectric Company informed the Commission that they have...

RECOVERY OF AN OXISOL DEGRADED BY THE CONSTRUCTION OF A HYDROELECTRIC POWER PLANT

Directory of Open Access Journals (Sweden)

Joseane Carina Borges de Carvalho

2015-12-01

Full Text Available ABSTRACT The removal of thick layers of soil under native scrubland (Cerrado on the right bank of the Paraná River in Selvíria (State of Mato Grosso do Sul, Brazil for construction of the Ilha Solteira Hydroelectric Power Plant caused environmental damage, affecting the revegetation process of the stripped soil. Over the years, various kinds of land use and management systems have been tried, and the aim of this study was to assess the effects of these attempts to restore the structural quality of the soil. The experiment was conducted considering five treatments and thirty replications. The following treatments were applied: stripped soil without anthropic intervention and total absence of plant cover; stripped soil treated with sewage sludge and planted to eucalyptus and grass a year ago; stripped soil developing natural secondary vegetation (capoeira since 1969; pastureland since 1978, replacing the native vegetation; and soil under native vegetation (Cerrado. In the 0.00-0.20 m layer, the soil was chemically characterized for each experimental treatment. A 30-point sampling grid was used to assess soil porosity and bulk density, and to assess aggregate stability in terms of mean weight diameter (MWD and geometric mean diameter (GMD. Aggregate stability was also determined using simulated rainfall. The results show that using sewage sludge incorporated with a rotary hoe improved the chemical fertility of the soil and produced more uniform soil pore size distribution. Leaving the land to develop secondary vegetation or turning it over to pastureland produced an intermediate level of structural soil quality, and these two treatments produced similar results. Stripped soil without anthropic intervention was of the lowest quality, with the lowest values for cation exchange capacity (CEC and macroporosity, as well as the highest values of soil bulk density and percentage of aggregates with diameter size <0.50 mm, corroborated by its lower

Mission: Partnerships - A Socially Responsible Approach for New Hydro-electric Developments

Energy Technology Data Exchange (ETDEWEB)

Wojczynski, Ed; Cole, Victoria; Pachal, Shawna; Goulet, Richard

2010-09-15

Worldwide there is a desire for clean, secure and renewable energy developed in an environmentally and socially responsible manner. In the Canadian province of Manitoba, where water is an abundant resource, efforts are being undertaken by Manitoba Hydro to achieve this goal through the development of new hydro-electric generating stations in partnership with Aboriginal (indigenous) communities. This paper focuses on the lessons learned by Manitoba Hydro in developing and implementing partnership agreements with northern Aboriginal communities on two new generation projects - the Wuskwatim Generation Project and the Keeyask Generation Project.

Development of a method to assess regional effects of developing small hydroelectric power plants in the county of Nordland; Utvikling av metodikk for analyse av sumvirkninger for utbygging av smaa kraftverk i Nordland. Forprosjekt naturmiljoe

Energy Technology Data Exchange (ETDEWEB)

Erikstad, L.; Hagen, D.; Evju, M.; Bakkestuen, V.

2009-09-15

Small hydroelectric power plants are defined as power plants with maximum effect of 10MV, normally without the need for water reservoirs. It is an increasing interest in developing small power plants. The development is regarded as environmental friendly mainly because it is renewable and non-polluting. Building of power plants do, however, impact nature through technical encroachment. In some areas there is a high density of suggested projects. This raises the need to assess effects on a larger scale than one and each project alone. The report contains an analysis of how series of projects can affect the natural environment. It is based on a defined resource specification on 1432 objects in the county of Nordland. These are compared with the modeled distribution on selected and relevant nature types where steep river beds, gorges and northerly wooded hill slopes are the most important. The analysis focuses on the sum of effects on local natural values. Values of regional and national importance are dealt with according to national procedures and is not the issue of this report. The developed method has five stages: Scoping; Analysis of natural values and vulnerability; Local and regional effects of small power plants; Assessment of mitigation possibilities; How the result can improve the planning procedure for small power plants. Development of small power plants in Nordland affects nature types that are important to the natural character of Nordland. The largest potential for negative effects is linked to additional technical encroachments (roads etc.) in untouched valley- and fjord landscapes. A greater focus on mitigation and alternative technical solutions are important to avoid these problems. (Author)

Small hydro-electric potential: west Poverty Bay region

Energy Technology Data Exchange (ETDEWEB)

1981-07-01

This study has identified six schemes in the Bay of Plenty Electric Power Board area and two in the Poverty Bay Electric Power Board area, of which five and one, respectively, are below the economic limit of $2400/kW suggested by the Ministry of Works and Development as of December 1979. Of these, only three appear both economically and environmentally acceptable. The Takaputahi and Torere schemes are not likely to proceed if the Ministry of Works and Development continue with their plans to develop the Motu River. Furthermore, the Motu Falls scheme is unlikely to proceed for environmental reasons. The schemes identified are not very attractive on the national scale and could not be justified on local terms. However, a detailed feasibility study of the Takaputahi/Torere diversion should be undertaken prior to a decision being made to proceed with the Motu development, or if the proposals are dropped. The present low load and slow growth of the area is such that prior to a small hydro-electric scheme being built, there would need to be an established demand for power.

Hydroelectric power generation assessment for Russia: Cooperation in a mutual transfer of technology

Energy Technology Data Exchange (ETDEWEB)

Rogers, M.F. [Harza Engineering Co., Chicago, IL (United States); Meloy, G.R. [Army Corps of Engineers, Lake Oswego, OR (United States); Semenkov, A.V. [Energopromtechnika Group Ltd., Moscow (Russian Federation)

1995-12-31

In September 1993, Russian Federation Prime Minister Chernomyrdin and United States Vice President Gore agreed on a joint study to examine options for Russia`s energy future. The objective of the study would be to develop a long-term, comprehensive program for the Russian power sector. A joint Russian-American program was established by the United States government. This program was charged to assess all aspects of the Russian energy sector, including conservation, thermal energy, nuclear energy, transmission line systems, and hydropower energy. The objective of the hydropower energy assessment aspect of the study was to prepare a time-phased investment plan for the period 1995 to 2000 for expansion of the existing hydroelectric energy production. The Hydropower Assessment Project required a close working relationship between engineers from the United States and the Russian Federation. The Project Team was given unprecedented access to design and economic data of existing and planned hydropower projects in the Russian Federation. This paper presents the methodology of the hydropower generation assessment for Russia, focusing on the partnering of American and Russian engineers, which led to a mutual transfer of technology and a successful project.

Aspects of the relations between the hydroelectric constructions and environment

International Nuclear Information System (INIS)

Michael, I.

1993-01-01

By their dimensions hydroelectric constructions constitute one of the evident examples of man's action upon nature, with favorable as well as unfavorable effects. By using past experience, such effects can be correctly establish and evaluated both by specialists from different fields and by representatives of the local population. The paper proposes several criteria for qualitative characterization of such effects. Some favorable and unfavorable effects of dams, lakes, secondary catchment and derivations are discussed. Also, having in view the water flow distribution which would allow a normal insertion of such construction in the environment, despite of some power production diminish diminishing, two proposals are made concerning possible solutions for secondary catchment and the hydroelectric power stations situated in the upper zones of the rivers. (author). 5 refs

assessment of slope stability around gilgel gibe-ii hydroelectric

African Journals Online (AJOL)

preferred customer

1 Gilgel-Gibe II Hydroelectric Project, Fofa Town, Ethiopia ... Key words/phrases: Factor of safety, plane failure, slope design, slope .... condition of potential unstable slopes along the road between Fofa town and Gilgel-Gibe Hydro- power II.

Hoopa Valley Small Scale Hydroelectric Feasibility Project

Energy Technology Data Exchange (ETDEWEB)

Curtis Miller

2009-03-22

This study considered assessing the feasibility of developing small scale hydro-electric power from seven major tributaries within the Hoopa Valley Indian Reservation of Northern California (http://www.hoopa-nsn.gov/). This study pursued the assessment of seven major tributaries of the Reservation that flow into the Trinity River. The feasibility of hydropower on the Hoopa Valley Indian Reservation has real potential for development and many alternative options for project locations, designs, operations and financing. In order to realize this opportunity further will require at least 2-3 years of intense data collection focusing on stream flow measurements at multiple locations in order to quantify real power potential. This also includes on the ground stream gradient surveys, road access planning and grid connectivity to PG&E for sale of electricity. Imperative to this effort is the need for negotiations between the Hoopa Tribal Council and PG&E to take place in order to finalize the power rate the Tribe will receive through any wholesale agreement that utilizes the alternative energy generated on the Reservation.

Counter rotating type hydroelectric unit suitable for tidal power station

International Nuclear Information System (INIS)

Kanemoto, T; Suzuki, T

2010-01-01

The counter rotating type hydroelectric unit, which is composed of the axial flow type tandem runners and the peculiar generator with double rotational armatures,was proposed to utilize effectively the tidal power. In the unit, the front and the rear runners counter drive the inner and the outer armatures of the generator, respectively. Besides, the flow direction at the rear runner outlet must coincide with the flow direction at the front runner inlet, because the angular momentum through the rear runner must coincides with that through the front runner. That is, the flow runs in the axial direction at the rear runner outlet while the axial inflow at the front runner inlet. Such operations are suitable for working at the seashore with rising and falling tidal flows, and the unit may be able to take place of the traditional bulb type turbines. The tandem runners were operated at the on-cam conditions, in keeping the induced frequency constant. The output and the hydraulic efficiency are affected by the adjustment of the front and the blade setting angles. The both optimum angles giving the maximum output and/or efficiency were presented at the various discharges/heads. To promote more the tidal power generation by this type unit, the runners were also modified so as to be suitable for both rising and falling flows. The hydraulic performances are acceptable while the output is determined mainly by the trailing edge profiles of the runner blades.

Hydroelectric developments in Nunavik : update on impact benefit agreements

Energy Technology Data Exchange (ETDEWEB)

Aatami, P. [Makivik Corp., Makivik, NF (Canada)

2004-07-01

The Partnership Agreement on Economic and Community Development in Nunavik is intended to accelerate development of natural resources in Nunavik and promote autonomy of the Inuit regional organizations. This can be accomplished through hydroelectric projects, mining, sport hunting, outfitting and tourism. In recent years, activities in these domains have raised fundamental questions pertaining to the advantages and disadvantages of resource development. The role that the Impact Benefit Agreement has on business opportunities has been examined more closely. The results of the Impact Benefit Agreement and its implication for the Cree Nation and hydro development in untapped regions of northern Quebec were described along with the role of the parties in financing future projects. An overview of the costs, benefits and considerations for hydro opportunities in northern Quebec was presented with reference to the electricity grid and the incentives for large investment. 1 fig.

Impacts of nuclear and hydroelectric great projects: economical, technological, environmental and social aspects

International Nuclear Information System (INIS)

Rosa, L.P.; Sigaud, L.; Mielnik, O.

1988-01-01

Some studies about the Great Impacts of Energy Sources, mainly nuclear power plant and hydroelectric power plant, in Brazil are presented. The technological, economical, social and environmental aspects are described [pt

Inventory studies of hydroelectric power plants: the methodological differences for small and large power plants; Estudos de inventario de usinas hidreletricas: as diferencas metodologicas para pequenas e grandes centrais

Energy Technology Data Exchange (ETDEWEB)

Bajay, Sergio Valdir [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Dept. de Energia; Martinez, Carlos Barreira [Faculdade de Engenharia Civil de Itajuba, MG (Brazil)

1992-12-31

The hydroelectric potential handbook produced by ELETROBRAS provides procedures to guides the hydro power studies of river sites. In this paper, a critical analysis of these procedures is carried out, for both large and small hydro power plants, pin pointing the plant`s planning/design interface there, several proposals are put forward in the order to adapt these procedures to small hydro plants, optimizing their planning and design for the several situation, found in Brazilian reality. (author) 5 refs.

Use of mediation to resolve the dispute over low-head hydroelectric development at Swan Lake

Energy Technology Data Exchange (ETDEWEB)

O' Connor, D.

1980-08-01

In 1978, the Maine Hydroelectric Development Corporation announced that the company planned to renovate five dams on the Goose River near Belfast, Maine to generate electricity. The most important part of the plan involved the use of the first of the dams, at the lower end of Swan Lake, to regulate the flow of water to the downstream dams. For Maine Hydro, management of the Swan Lake dam could make an otherwise marginal proposal lucrative. However, Swan Lake is vitally important to the residents of Swanville. The town was so concerned about the impact of this proposed hydroelectric project that it petitioned the Federal Energy Regulatory Commission (FERC) to deny Maine Hydro's application on the grounds that it would damage the environment, reduce property values and eliminate recreational opportunities for its citizens. This report was written by the mediator of the dispute and represents the views and behavior of the parties as the mediator understood them. It is intended to present the mediator's observations in a way which will inform and assist others who may someday face a difficult situation like the one the Town of Swanville and Maine Hydroelectric Development Corporation faced, and successfully resolved, in the spring and summer of 1979.

The obtention of high reliability levels to the increasing of power in hydroelectric generators of modern power plants; A obtencao de altos indices de confiabilidade no aumento de potencia em hidrogeradores de usinas modernizadas

Energy Technology Data Exchange (ETDEWEB)

Goncalves, Octavio A.; Uemori, Mauro K.I.; Spiridon, Michel W. [Asea Brown Boveri Ltda., Osasco, SP (Brazil)

1993-12-31

The increase in the power capacity of the generators of existing hydroelectric power plants is presented as an alternative technically feasible and economically advantageous to the increase of the power generation capacity of the Brazilian electric power system. This work presents the need of a global analysis of each case in order to optimize this process and also presents a methodology which may be applied to electric power generators, turbines, transformers and other electrical equipment. 2 refs., 8 figs.

Results of the 77th meeting of the council on power resource development and adjustment

International Nuclear Information System (INIS)

Sasaki, Koichi

1979-01-01

On December 27, 1978, the 77th meeting of the Council on Power Resource Development and Adjustment was held, and the discussion on the revision of the basic plan of power resource development in 1978 fiscal year was carried out. As a result of the discussion, the recommendation to the government was submitted. Based on the recommendation, on January 20, the revised plan as recommended by the Council was decided and officially announced. The following is the brief summary of the revised plan of power resource development in 1978 fiscal year and the points of power resource development where the construction will be newly started. According to the revised plan, as the long-term target, it is scheduled to achieve power resource development of about 71 million kW during 8 years from 1978 fiscal year. In addition, this plan prescribes the construction of power stations amounting to about 47.2 million kW (including about 5.92 million kW, the construction of which is newly started in 1978 fiscal year) and the financing of 3,085.8 billion yen for power resource development (including transmission, transformation and distribution sections) as the projects in 1978 fiscal year. The revision of the power resource development plan includes addition of 6 new points for power resource development, equivalent to about 2.4 million kW, including 3 hydroelectric power points (about 40 thousand kW), 2 thermal-power points (1.2 million kW) and 1 atomic power point (1.16 million kW). As a result, new power resource development points in 1978 fiscal year are made up of 10 hydroelectric power points, 22 thermal-power points and 4 atomic power points. (Suzuki, T.)

Proceedings of a workshop on dealing with uncertainties in the hydroelectric energy business. CD-ROM ed.

International Nuclear Information System (INIS)

2004-01-01

This workshop was attended by experts in Canadian and international hydroelectric utilities to exchange information on current practices and opportunities for improvement or future cooperation. The discussions focused on reducing the uncertainties associated with hydroelectric power production. Although significant improvements have been made in the efficiency, reliability and safety of hydroelectric power production, the sector is still challenged by the uncertainty of water supply which depends greatly on weather conditions. Energy markets pose another challenge to power producers in terms of energy supply, energy demand and energy prices. The workshop focused on 3 themes: (1) weather and hydrologic uncertainty, (2) market uncertainty, and (3) decision making models using uncertainty principles surrounding water resource planning and operation. The workshop featured 22 presentations of which 11 have been indexed separately for inclusion in this database. refs., tabs., figs

constraints of micro hydroelectric power plants in the west region of ...

African Journals Online (AJOL)

DJFLEX

KEYWORDS: Constraints; craftsmen; funds; highlands; hydroelectric. INTRODUCTION ... MATERIAL AND METHODS. 1.1 Physical ... (Bamougoum; Bapi; Batotcha) are due to the use ... water very often escapes from the air vent because of its .... The funds raised will remedy ... Graw-Hill Book Company New York,. USA.

Sustainable energy development as an integral part of hydroelectric business management

International Nuclear Information System (INIS)

Lee, W.; Yu, M.; Young, C.

1996-01-01

Elements of Ontario Hydro's strategy for sustainable energy development were discussed, highlighting key developments in the business management practices in Ontario Hydro's Hydroelectric Business Unit. Sustainable development considerations are now integral part of any business case analysis; management of the environment also has been integrated into the Utilities' business management process. Several environmental management practices intended to enhance sustainability have been introduced, including a full-fledged environmental management system based on ISO 14001 standards. Energy efficiency opportunities are aggressively pursued, including turbine upgrades, and energy efficient lighting. Experience to date indicates that business performance and progress towards sustainable energy development need not be mutually exclusive

Climate change impact on operation of dams and hydroelectricity generation in the Northeastern United States

Science.gov (United States)

Ehsani, N.; Vorosmarty, C. J.; Fekete, B. M.

2016-12-01

We are using a large-scale, high-resolution, fully integrated hydrological/reservoir/hydroelectricity model to investigate the impact of climate change on the operation of 11037 dams and generation of electricity from 375 hydroelectric power plants in the Northeastern United States. Moreover, we estimate the hydropower potential of the region by energizing the existing non-powered dams and then studying the impact of climate change on the hydropower potential. We show that climate change increases the impact of dams on the hydrology of the region. Warmer temperatures produce shorter frozen periods, earlier snowmelt and elevated evapotranspiration rates, which when combined with changes in precipitation, are projected to increase water availability in winter but reduce it during summer. As a result, the water that is stored by dams will be more than ever a necessary part of the routine water systems operations to compensate for these seasonal imbalances. The function of dams as emergency water storage for creating drought resiliency will mostly diminish in the future. Building more dams to cope with the local impacts of climate change on water resources and to offset the increased drought vulnerability may thus be inevitable. Annual hydroelectricity generation in the region is 41 Twh. Our estimate of the annual hydropower potential of non-powered dams adds up to 350 Twh. Climate change may reduce hydropower potential from non-powered dams by up to 13% and reduce current hydroelectricity generation by up to 8% annually. Hydroelectricity generation and hydropower potential may increase in winter months and decline in months of summer and fall. These changes call for recalibration of dam operations and may raise conflict of interests in multipurpose dams.

78 FR 26358 - Eagle Mountain Pumped Storage Hydroelectric Project, Eagle Crest Energy; Notice of Meeting With...

Science.gov (United States)

2013-05-06

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [P-13123-002-CA] Eagle Mountain Pumped Storage Hydroelectric Project, Eagle Crest Energy; Notice of Meeting With the Bureau of Land Management a... Policy and Management Act and the Federal Power Act), on the Eagle Mountain Pumped Storage Hydroelectric...

Environmental Impact Report from Santa Rita Hydroelectric Power Plant (Minas Gerais State - Brazil): technical strategic for its elaboration; Relatorio de Impacto Ambiental da Usina Hidreletrica da Santa Rita (MG): estrategica tecnica para sua elaboracao

Energy Technology Data Exchange (ETDEWEB)

Souza, J.A. de; Marques Neto, F P [Companhia Energetica de Minas Gerais (CEMIG), Belo Horizonte, MG (Brazil)

1990-12-31

The steps for developing the technical strategies used on the elaboration of Environmental Impact Report from Santa Rita Hydroelectric Power Plant, Minas Gerais State, are described, including the influence area, technical requirements, impact identification, technical selection of mitigative measures, impact meaning and strategy for evaluating the identified impacts. (C.G.C.).

76 FR 61689 - Sutton Hydroelectric Company, LLC

Science.gov (United States)

2011-10-05

... Hydroelectric Company, LLC Notice of Site Visit On February 6, 2008, Sutton Hydroelectric Company, LLC (Sutton Hydroelectric) filed a notice of intent and a preliminary application document to license its proposed Sutton Hydroelectric Project No. 12693. The project would be located at the U.S. Army Corps of Engineers' (Corps...

[Experience in organization of joint actions of expert divisions during the accident at P.S. Podporozniy Sayano-Shushenskaya hydroelectric power station].

Science.gov (United States)

Kolkutin, V V; Ivanov, P L; Fetisov, V A; Afanas'ev, S A; Dorozhkin, O A; Vognerubov, R N; Kuznetsov, T L

2010-01-01

The authors illustrate positive experience in organization and coordination of joint actions of expert divisions of different sectors during the accident at P.S. Podporozniy Sayano-Shushenskaya hydroelectric power station in August 2009. Special emphasis is laid on the participation of experts of quick-reaction teams formed by territorial forensic medical bureaus, mobile and supporting forces from the adjacent regions.

Small hydroelectric engineering practice

CERN Document Server

Leyland, Bryan

2014-01-01

Small Hydroelectric Engineering Practice is a comprehensive reference book covering all aspects of identifying, building, and operating hydroelectric schemes between 500 kW and 50 MW. In this range of outputs there are many options for all aspects of the scheme and it is very important that the best options are chosen.As small hydroelectric schemes are usually built against a limited budget it is extremely important that the concept design is optimum and every component is designed to maximise the benefi t and minimise the cost. As operating costs are often a high proportion of the income it i

Hydroelectricity and ecological considerations. Falsification of the environmental reality by the opponents of hydropower

Directory of Open Access Journals (Sweden)

Andrzej Giziński

2013-09-01

Full Text Available Opponents of hydroelectricity claim falsely that hydrotechnical development of the Lower Vistula River constitutes implementation of Edward Gierek’s concept of bringing only environmental damage1. Statements on the negative environmental impact of constructing small hydroelectric power stations (SHPS are equally groundless. Permanent protests against the construction of dams and river damming, regardless of the motivations and will of protesters, increase energy dependence on Russia, and preserves the poor, post-Bierut hydrological situation2. The main fallacy made by hydropower opponents is the alternative treatment of power and environmental purposes. Environmental errors consist in continuous omission of even the most obvious positive ecological effects of constructing river dams and – what is especially reprehensible – inventing non-existent threats, e.g. lethal concentration of toxic heavy metals in deposits of the Włocławek Reservoir or the detrimental impact of warming up water in stage of falls on the fish population below the dam.

National hydroelectric power resources study. Preliminary inventory of hydropower resources. Volume 1. Pacific Northwest region

Energy Technology Data Exchange (ETDEWEB)

None

1979-07-01

The preliminary inventory and analysis procedures provide a comprehensive assessment of the undeveloped hydroelectric power potential in the US and determines which sites merit more thorough investigation. Over 5400 existing structures have been identified as having the physical potential to add hydropower plants or increase hydropower output thereby increasing our present hydropower capacity from a total of 64,000 MW to 158,000 MW and our energy from 280,000 GWH to 503,000 GWH. While the physical potential for this increase is clearly available, some of these projects will undoubtedly not satisfy more-detailed economic analysis as well as the institutional and environmental criteria which will be imposed upon them. Summary tables include estimates of the potential capacity and energy at each site in the inventory. In some cases, individual projects may be site alternatives to others in the same general location, when only one can be considered for hydropower development. The number of sites per state is identified, but specific information is included for only the sites in Alaska, Idaho, Oregon, and Washington in this first volume.

Cost basis for hydroelectric power plants. Price level of 01.01.1995; Kostnadsgrunnlag for vannkraftanlegg. Prisnivaa pr 01.01.1995

Energy Technology Data Exchange (ETDEWEB)

Stensby, H.; Slapgaard, J.

1995-08-01

This publication provides a basis for calculation of expected average construction costs and equipment costs for large hydroelectric power plants in Norway. The publication is not intended to be a tool for projecting with regard to optimization or choice of construction types, but should be useful at an early stage of planning. There is a supplementary publication (Publication no. 20/1995) for small plants. 80 figs., 12 tabs.

Hydroacoustic modelling and numerical simulation of unsteady operation of hydroelectric systems[Dissertation 3713

Energy Technology Data Exchange (ETDEWEB)

Nicolet, Ch.

2007-03-15

Hydropower represented in 1999 19% of the world electricity production and the absolute production is expected to grow considerably during the next 30 years. Francis turbines play a major role in the hydroelectric production due to their extended range of application. Due to the deregulated energy market, hydroelectric power plants are increasingly subjecting to off design operation, start-up and shutdown and new control strategies. Consequently, the operation of Francis turbine power plants leads to transients phenomena, risk of resonance or instabilities. The understanding of these propagation phenomena is therefore paramount. This work is a contribution to the hydroacoustic modelling of Francis turbine power plants for the investigation of the aforementioned problematic. The first part of the document presents the modelling of the dynamic behavior and the transient analysis of hydroelectric power plants. Therefore, the one-dimensional model of an elementary pipe is derived from the governing equations, i.e. momentum and continuity equations. The use of appropriate numerical schemes leads to a discrete model of the pipe consisting of a T-shaped equivalent electrical circuit. The accuracy in the frequency domain of the discrete model of the pipe is determined by comparison with the analytical solution of the governing equations. The modelling approach is extended to hydraulic components such as valve, surge tanks, surge shaft, air vessels, cavitation development, etc. Then, the modelling of the Francis, Pelton and Kaplan turbines for transient analysis purposes is presented. This modelling is based on the use of the static characteristic of the turbines. The hydraulic components models are implemented in the EPFL software SIMSEN developed for the simulation of electrical installations. After validation of the hydraulic models, transient phenomena in hydroelectric power plants are investigated. It appears that standard separate studies of either the hydraulic or of

Refurbishment and upgrading of Iron Gates I Hydroelectric and Navigation System on the Danube River

International Nuclear Information System (INIS)

Scvortov, F.; Vasiliu, A.; Rosca, N.

1996-01-01

This work shows the problems of the refurbishing the hydroelectric units of the Iron Gates 1 Hydroelectric and Navigation System, operating since 1970. Their long and intensive utilization leads to the necessity of their refurbishment. One is demonstrated by detailed studies that it is sensible and efficient to perform both rehabilitation of the existent hydroelectric units and their power increasing from 175 MW to 190 MW, and prior to all these, as a first step, to install an additional hydroelectric unit (G7) for each system with a capacity of 190 MW. Complex technical and energetic-economical problems appear in realizing this objective due to the necessity of analysing a great volume of data in view of taking a correct decision. (author). 7 figs

Emergetic analysis of the electrolytic hydrogen production using the secondary energy from the Itaipu Hydroelectric Power Plant; Analise emergetica da producao de hidrogenio eletrolitico aproveitando a energia vertida nao turbinada da Usina Hidroeletrica de Itaipu

Energy Technology Data Exchange (ETDEWEB)

Agarussi, Maria Alessandra Silva Nunes; Espinola, Michel Osvaldo Galeano [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Planejamento de Sistemas Energeticos

2006-07-01

Due to the possibility of increase in the energy market in a few years and awareness of the necessity of using the secondary energy in hydroelectric power plants and also concerned about the environmental problems related to energy enterprises, the present paper develops the emergy analyses of electrolytic hydrogen production in the Itaipu Power Plant located in the countries of Brazil and Paraguay. The emergy analyses despite being unknown by the major people and technicians responsible for the development of Environmental Impacts Studies, named EIA/RIMAS in Brazil, represents a way to fulfill all requirements imposed by law and government and also an important manner to internalize externalities in the evaluation of all variables involved in the execution and maintenance of natural and artificial processes. Afterwards, this database can be used to be compared with other actual processes of producing and supplying energy, guiding stake holders when deciding where and how to implement and take advantage of available energy sources. This work aims to evaluate with emergetic criteria the research done by Antonio Carlos Fonseca Santos Jr.: Analysis of the Economic Feasibility of Hydrogen Production in Hydroelectric Power Plants: A Case Study at Itaipu. (author)

Modernization of Henry Borden hydroelectric power plant: The ELETROPAULO`s, The Electric Power Company of Sao Paulo State, experience in no.1 generator power improvement; Modernizacao da Usina Henry Borden (a experiencia da ELETROPAULO na repotenciacao do gerador nr. 1)

Energy Technology Data Exchange (ETDEWEB)

Delbone, Edval; Matos, Jose Alberto da S.; Grassi, Marco A; Oliveira, Robinson C; Sertori, Sergio R [Eletricidade de Sao Paulo SA, SP (Brazil); Duarte, F I; Pires, Nilo Ramos; Yamagushi, Luiz Massao [Asea Brown Boveri (ABB) (Brazil)

1996-12-31

The need for the substitution of several the generating equipment of Henry Borden hydroelectric power plant due to the end of their service life, in addition to the difficult economic situation and specific characteristics of the unit, leaded ELETROPAULO company to decide for the power improvement of some equipment. This work presents this experience giving special emphasis to the procedure adopted and results obtained 2 tabs.

Hydroelectric power generation in an Alpine basin: future water-energy scenarios in a run-of-the-river plant

Science.gov (United States)

Bongio, Marco; Avanzi, Francesco; De Michele, Carlo

2016-08-01

We investigate scenarios of hydroelectric power generation for an Alpine run-of-the-river plant in 2050. To this end, we include a conversion from streamflow to energy in a hydrological model of the basin, and we introduce a set of benchmark climate scenarios to evaluate expected future production. These are a "future-like-present" scenario assuming future precipitation and temperature inputs to be statistically equivalent to those observed during the recent past at the same location, a "warmer-future" scenario, which considers an additional increase in temperature, and a "liquid-only" scenario where only liquid precipitation is admitted. In addition, two IPCC-like climatic scenarios (RCP 4.5 and RCP 8.5) are considered. Uncertainty in glaciers' volume is accounted by initializing the hydrological model with two different inventories of glaciers. Ensemble results reveal that 1) an average decrease between -40% and -19% of hydroelectric power generation in 2050 is predicted at the plant considered (with respect to present condition); 2) an average decrease between -20% and -38% of cumulative incoming streamflow volume at the plant is also predicted, again with respect to present condition; 3) these effects are associated with a strong average decrease of the volume of glaciers (between -76% and -96%, depending on the initial value considered). However, Monte Carlo simulations show that results are also prone to high uncertainties. Implications of these results for run-of-the-river plants are discussed.

Potential hydroelectric power. Vertical turbine: spillway combine Broadwater Dam. Final report

Energy Technology Data Exchange (ETDEWEB)

Willer, D.C.

1979-04-23

A feasibility study was made of the hydroelectric power potential at Broadwater Dam in western Montana. Two alternative configurations for the potential project were evaluated and the economics of four possible sources of project funding were assessed. The configurations analyzed were an apron-mounted configuration, in which the turbine-generator units are located on the downstream apron of the existing dam, and a conventional configuration, in which the units are located in a new powerhouse adjacent to the existing dam. The funding sources considered were the Department of Energy loan program, the United States Bureau of Reclamation PL-984 loan program and conventional revenue bonds, both taxable and tax-exempt. The optimal project alternative was determined to be the apron-mounted configuration. The final choice of funding would be dependent on the power purchaser. It was shown that, regardless of the configuraton or funding source selected, the project would be feasible. The cost of the apron-mounted configuration, which would consist of four turbine-generator units for a total installed capacity of 9.76 MW, was estimated as $13,250,000 with financing provided by either a PL-984 loan or tax-exempt bonds. The cost per installed kilowatt was therefore $1,350, and the cost per kilowatt-hour was 19.6 mills. The average annual energy was estimated to be 56.44 million kWh, the equivalent of approximately 87,000 barrels of oil per y. It is therefore recommended that the Montana Department of Natural Resources and Conservation proceed with the project and that discussions be initiated with potential power purchasers as soon as possible.

Experience of Minas Gerais Energetic Company (CEMIG) in feasibility studies from hydroelectric power plants: energetic-economic studies

International Nuclear Information System (INIS)

Ramos, O.C.; Bras, A.J.F.; Batista Neto, R.P.; Salles Filho, M.P.

1989-01-01

The experience of Minas Gerais Energetic Company (CEMIG) - Brazil, on the use of dimensioning methodology for hydroelectric power plant from the Coordinated Group of Planning System was described, showing the problems with its use and the solutions, mainly the reservoir and the dimension of installed potential. It was concluded that the calculation procedures of the marginal costs for dimensioning, so as to become these costs more representative in future structure of the Brazilian generator park and less dependent to the oscillation due to conjuncture problems, must be re-evaluated. (C.G.C.). 7 refs, 3 figs, 1 tab

Environment and hydroelectricity colloquium - Synthesis; Colloque Environnement et Hydro-electricite - Synthese

Energy Technology Data Exchange (ETDEWEB)

Aelbrecht, Denis; Abadie, Marc; Baril, Dominique; Delacoux, Jean-Yves; Delaunay, Alexis; Loudiere, Daniel; Penalba, Anne; Pont, Didier; Rocq, Sylvie; Roult, Didier; Sheibani, Neda; Thevenet, Regis; Weisrock, Ghislain

2010-10-15

This document proposes a synthesis of a colloquium dedicated to the interactions between hydroelectric installations and the environment. The four sessions respectively addressed the impacts of hydroelectric installations on ecosystems and more particularly on pisciculture populations (strategies for migration restoration, development of fish-friendly turbines), the sedimentary management of hydroelectric installations, the implementation of the Water Framework European Directive (Austrian experience, biological assessment criteria), and examples of environmental integration of existing or projected installations

Perceptions of the Quebec population regarding the development of the electric power industry in Quebec

International Nuclear Information System (INIS)

Lefebvre, M.; Deland, I.

2000-04-01

In March 2000 the Association de l'industrie electrique du Quebec hired the strategic marketing firm of Leger and Leger to conduct a survey of the Quebec population with the following three objectives in mind: (1) to evaluate the general opinion of the Quebec population regarding the development of new hydroelectric projects, (2) to determine the public opinion regarding the exportation of electricity, and (3) to evaluate the public opinion regarding certain hydroelectric projects that were already underway. 1000 adults were polled. It was determined that a large majority (84.2 per cent) of Quebecers are in favour of new hydroelectric development in the province as long as certain conditions are respected, such as maintaining jobs and not incurring an increase in the price of electricity. It was also determined that Quebecers are under the impression that the province exports much more electricity than it actually does. 66 per cent of the population believe that the province is exporting more than 20 per cent of its electric power production outside of the province. In reality, the province exports on average 10 per cent of its production. 71.5 per cent of Quebecers agree to new projects of exportation as long as the projects do not decrease the capacity for the province to fulfill its own power needs. In terms of environmental perceptions, hydroelectric power is considered to be the second least polluting source of energy both from an air pollution and visual pollution point of view. 72.6 per cent of the people said that hydro produces less greenhouse gases than electricity produced by natural gas or coal. Also 83.4 per cent recognized that hydro is a renewable resource. In general, the people surveyed were also in agreement with the development of new transmission lines. 86.8 per cent agreed with the construction of a transmission line between the Laurentians and the Outaouais. The polls are accurate to 3.1 per cent precision 19 times out of 20. tabs., figs

Project authorization process in the thermal power stations vs in the hydroelectric power stations: two weights, two measurements?

International Nuclear Information System (INIS)

Comtois, Y.

2004-01-01

Key topics include the long tendering process, a comparison of two projects: thermal station vs. hydroelectrical station, and the solutions towards reducing the delay in obtaining authorization. (author)

Electric power development in the USSR

International Nuclear Information System (INIS)

Rudenko, Y.N.

1993-01-01

The generation of electric power in the USSR is based on the Unified Electric Power System (UEPS) whose network cover most of the habitable territory of the country. Therefore, the development of the UEPS governs the overall evolution of the electric power generation in the country. At present, eleven out of thirteen joint electric power systems, which supply electricity to most of the USSR, are operating within the UEPS. The total electric power generation in the country reached 1728 billion kWh in 1990, of which the UEPS supplied approximately 90%. About 70% of installed capacity of the UEPS is fossil-fuelled power plants, about 12 % is nuclear power plants, and about 18% is hydroelectric power plants. The system-forming grid of the UEPS is made up of transmission lines of 220, 330, 500 and 750 kV. The on-line supervisory control of the UEPS is achieved by four-level automated system of dispatch control (UEPS, joint electric power systems, regional electric power systems, electric power plants, substations,electric grid regions). The development and extension of the UEPS in the USSR ensure higher reliability and quality of electric power supply to end-users, combined with higher efficiency. The principal problem facing the UEPS are as follows: the need to ensure environmental protection and efficiency of the steam power plants; to improve the safety and efficiency of nuclear power plants. The solution to these problems will define the conditions of the UEPS development, as well as electric power systems of other countries, at least for the coming two decades. This paper characterizes the peculiarities of the UEPS development over the last 20 years, including the installed capacity structure and the system-forming electric power grid. Special attention is paid to the environmental problems related to functioning and development of the UEPS and to the means of their solution. (author)

Herpetofauna, Santa Edwiges I and II hydroelectric power plants, state of Goiás, Brazil

Directory of Open Access Journals (Sweden)

Cintra, C. E. D.

2009-01-01

Full Text Available This paper presents a check list of amphibians and reptiles of the area under the influence of Santa Edwiges I and IIsmall hydroelectric power plants on Rio Buritis, state of Goiás, Brazil. The list was the result of faunal rescueoperations carried out between 31 August and 29 September 2005 (Santa Edwiges II and between 30 July and 12September 2006 (Santa Edwiges I. The list comprises 30 species of amphibians belonging to 16 genera and 8 families(Caeciliidae, Bufonidae, Cycloramphidae, Hylidae, Brachycephalidae, Leiuperidae, Leptodactylidae, andMicrohylidae, and 45 species of reptiles belonging to 38 genera and 16 families (Amphisbaenidae, Anguidae,Gekkonidae, Gymnophtalmidae, Polychrotidae, Scincidae, Teiidae, Tropiduridae, Anomalepididae, Leptotyphlopidae,Typhlopidae, Boidae, Colubridae, Dipsadidae, Elapidae, and Viperidae.

Balance: Hydroelectricity impacts on energy systems

International Nuclear Information System (INIS)

Baptista, V.; Baia, L.; Azevedo, H.

1997-01-01

The VALORAGUA (Value of Water in Portuguese) computer model was developed by Electricidade de Portugal (EDP) in order to determine the optimal operation strategy of a mixed hydro-thermal power system with an important share of hydroelectricity generation such as the one of Portugal. The model has become the main tool used by EDP for planning the development and operation of its power system. In recent years, EDP has acquired the ENPEP package and has become acquainted with its use for integrated energy and electricity planning. The main goal of this effort has been to incorporate in EDP's planning procedure an integrated approach for determining the possible role of electricity in meeting the overall requirements for energy of the country, with due account to the impacts (resource requirements and environmental emissions) of alternative energy and electricity systems. This paper concentrates on a comparison of the results of the BALANCE module of ENPEP for the electricity sector against the simulation results provided by VALORAGUA. Suggested improvements to the methodologies in order to overcome the divergences in results from these two models are also advanced in the paper. (author). 15 figs

Balance: Hydroelectricity impacts on energy systems

Energy Technology Data Exchange (ETDEWEB)

Baptista, V; Baia, L; Azevedo, H [Electricidade de Portugal, Porto (Portugal)

1997-09-01

The VALORAGUA (Value of Water in Portuguese) computer model was developed by Electricidade de Portugal (EDP) in order to determine the optimal operation strategy of a mixed hydro-thermal power system with an important share of hydroelectricity generation such as the one of Portugal. The model has become the main tool used by EDP for planning the development and operation of its power system. In recent years, EDP has acquired the ENPEP package and has become acquainted with its use for integrated energy and electricity planning. The main goal of this effort has been to incorporate in EDP`s planning procedure an integrated approach for determining the possible role of electricity in meeting the overall requirements for energy of the country, with due account to the impacts (resource requirements and environmental emissions) of alternative energy and electricity systems. This paper concentrates on a comparison of the results of the BALANCE module of ENPEP for the electricity sector against the simulation results provided by VALORAGUA. Suggested improvements to the methodologies in order to overcome the divergences in results from these two models are also advanced in the paper. (author). 15 figs.

Culinary and pressure irrigation water system hydroelectric generation

Energy Technology Data Exchange (ETDEWEB)

Christiansen, Cory [Water Works Engineers, Pleasant Grove City, UT (United States)

2016-01-29

Pleasant Grove City owns and operates a drinking water system that included pressure reducing stations (PRVs) in various locations and flow conditions. Several of these station are suitable for power generation. The City evaluated their system to identify opportunities for power generation that can be implemented based on the analysis of costs and prediction of power generation and associated revenue. The evaluation led to the selection of the Battle Creek site for development of a hydro-electric power generating system. The Battle Creek site includes a pipeline that carries spring water to storage tanks. The system utilizes a PRV to reduce pressure before the water is introduced into the tanks. The evaluation recommended that the PRV at this location be replaced with a turbine for the generation of electricity. The system will be connected to the utility power grid for use in the community. A pelton turbine was selected for the site, and a turbine building and piping system were constructed to complete a fully functional power generation system. It is anticipated that the system will generate approximately 440,000 kW-hr per year resulting in $40,000 of annual revenue.

[Impacts of hydroelectric cascade exploitation on river ecosystem and landscape: a review].

Science.gov (United States)

Yang, Kun; Deng, Xi; Li, Xue-Ling; Wen, Ping

2011-05-01

Hydroelectric cascade exploitation, one of the major ways for exploiting water resources and developing hydropower, not only satisfies the needs of various national economic sectors, but also promotes the socio-economic sustainable development of river basin. unavoidable anthropogenic impacts on the entire basin ecosystem. Based on the process of hydroelectric cascade exploitation and the ecological characteristics of river basins, this paper reviewed the major impacts of hydroelectric cascade exploitation on dam-area ecosystems, river reservoirs micro-climate, riparian ecosystems, river aquatic ecosystems, wetlands, and river landscapes. Some prospects for future research were offered, e.g., strengthening the research of chain reactions and cumulative effects of ecological factors affected by hydroelectric cascade exploitation, intensifying the study of positive and negative ecological effects under the dam networks and their joint operations, and improving the research of successional development and stability of basin ecosystems at different temporal and spatial scales.

Model for analysis and definition of the governor constants in hydroelectric power; Modelo para analise e definicao das constantes do regulador em usinas hidreletricas

Energy Technology Data Exchange (ETDEWEB)

Andrade, Jose Geraldo Pena de; Koelle, Edmundo; Luvizotto Junior, Edevar [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Civil. Dept. de Hidraulica e Saneamento

1997-07-01

This paper presents a complete mathematical and computer model which allows simulating a generic hydroelectric power plant under steady state and transitory regimes, in the extensive time, and also the analysis of the oscillating flows resulting from excitation sources present in the installation, such as vortices in the suction pipe during partial load operation.

Environmental study of the Wairakei Power Plant. [Effects of hydroelectric power plant on ecology of Waikato River Basin, New Zealand

Energy Technology Data Exchange (ETDEWEB)

Axtmann, R C

1974-12-01

Physical, chemical, biological, ecological, and aesthetic aspects of the Wairakei Power Plant are examined, in varying detail, but with primary emphasis on the chemical and thermal effluents. When flows are average or higher in the Waikato River, the Plant's environmental effects are not overly severe. However, operating requirements for the Waikato Hydro-electric System are such that the Plant sporadically produces wastes that may affect the human and natural environment adversely. These adverse effects are not presently too serious, but suggestions are made for improving the Plant's overall environmental performance. Although the point is not discussed in detail, it is clear from the results of the study that any additional thermal plants on the Waikato could strain the river's absorptive capacities severely, unless alternative disposal techniques are used for the various effluents.

The process of granting of the authorization-registration of small-scale hydroelectric power plant; O processo de outorga de autorizacao-registro de PCHs

Energy Technology Data Exchange (ETDEWEB)

Lago, Rosangela; Nobrega, Andre Pepitone da [Agencia Nacional de Energia Eletrica (ANEEL), Brasilia, DF (Brazil). Superintendencia de Concessoes e Autorizacoes de Geracao

2002-07-15

Small hydroelectric power plant represent a fast and efficient way of promoting the expansion of electricity supply in order to meet the growing demand in the market place. Due to its characteristics, this type of enterprises operated enables better meet the needs of potential in small urban centers and rural regions, since, in most cases, complements the provision made by the interconnected system.

Hydroelectric power plant operation procedures: more than a necessity, a competitive advantage; Procedimentos de operacao de usinas hidreletricas: mais que uma necessidade uma vantagem competitiva

Energy Technology Data Exchange (ETDEWEB)

Winck, Joao Carlos Candal; Marques, Jorge Luiz Giulian; Lovatto, Hedio Bitencourt; Lindau, Joao Carlos [Companhia Estadual de Energia Eletrica do Estado do Rio Grande do Sul, Porto Alegre, RS (Brazil)]. E-mails: jwinck@ceee.com.br; jorgem@ceee.com.br; hediol@ceee.com.br; joaol@ceee.com.br

2000-07-01

This paper report the reasons, the advantages, the phases, the methodology and the difficulties faced by the CEEE (Electric Energy Company of the State of Rio Grande do Sul - Brazil), when elaborating the 125 operation procedures, referred to the 13 from 15 hydroelectric power plants, during a 30 months work period.

Hydroelectricity and territories; L'hydroelectricite et les territoires

Energy Technology Data Exchange (ETDEWEB)

Rocq, Sylvie [Syndicat Mixte d' Etude et d' Amenagement de la Garonne, 61, rue Pierre Cazeneuve 31200 Toulouse (France); Moor, Jean-Francois; Comeau, Aline [Agence de l' eau Adour-Garonne, 90 rue de Feretra 31078 Toulouse Cedex 4 (France); Thomas, Michael [Etablissement Public Territorial du Bassin de la Dordogne - Epidor, Le Tournepique, 24250 Castelnaud-la-Chapelle (France)

2012-01-15

On our river territories, the development of renewable energy and the restoration of the quality of the aquatic ecosystems both illustrate the need to reconcile the different usages of water resources while still guaranteeing proper functioning of the ecosystems. Hydroelectricity is the crux of the problem. Because of its mountainous hydrographic network and its favourable hydrology, the Adour-Garonne basin witnessed large-scale development of its hydroelectric potential throughout the 20. century. Approaching the question of hydroelectricity from the point of view of the river territories puts all the challenges facing them into their true perspective. Two distinct examples in the Adour-Garonne basin illustrate the partnership between the Water Agency and the local authorities in the Garonne and Dordogne basins: on the Garonne River, reconciling water usages with the maintenance of adequate water levels at times of drought; on the Dordogne River, reducing the impact of the hydro-peaking. (authors)

Prediction of Francis Turbine Prototype Part Load Pressure and Output Power Fluctuations with Hydroelectric Model

Science.gov (United States)

Alligné, S.; Nicolet, C.; Béguin, A.; Landry, C.; Gomes, J.; Avellan, F.

2017-04-01

The prediction of pressure and output power fluctuations amplitudes on Francis turbine prototype is a challenge for hydro-equipment industry since it is subjected to guarantees to ensure smooth and reliable operation of the hydro units. The European FP7 research project Hyperbole aims to setup a methodology to transpose the pressure fluctuations induced by the cavitation vortex rope from the reduced scale model to the prototype generating units. A Francis turbine unit of 444MW with a specific speed value of ν = 0.29, is considered as case study. A SIMSEN model of the power station including electrical system, controllers, rotating train and hydraulic system with transposed draft tube excitation sources is setup. Based on this model, a frequency analysis of the hydroelectric system is performed for all technologies to analyse potential interactions between hydraulic excitation sources and electrical components. Three technologies have been compared: the classical fixed speed configuration with Synchronous Machine (SM) and the two variable speed technologies which are Doubly Fed Induction Machine (DFIM) and Full Size Frequency Converter (FSFC).

Ticks (Acari: Ixodidae) on wild animals from the Porto-Primavera Hydroelectric power station area, Brazil.

Science.gov (United States)

Labruna, Marcelo B; de Paula, Cátia D; Lima, Thiago F; Sana, Dênis A

2002-12-01

From June 2000 to June 2001, a total of 741 ticks were collected from 51 free-living wild animals captured at the Porto-Primavera Hydroelectric power station area, located alongside an approximately 180 km course of the Paran river, between the states of S o Paulo and Mato Grosso do Sul, comprising 9 species of 3 genera: Ambly-omma (7 species), Boophilus (1) and Anocentor (1). A total of 421 immature Amblyomma ticks were reared in laboratory until the adult stage, allowing identification of the species. A. cajennense was the most frequent tick species (mostly immature stages) collected on 9 host species: Myrmecophaga tridactyla, Tamandua tetradactyla,Cerdocyon thous, Puma concolor,Tayassu tajacu, Mazama gouazoubira,Hydrochaeris hydrochaeris,Alouatta caraya, Cebus apella. Other tick species were less common, generally restricted to certain host taxa.

Fish passage mitigation of impacts from hydroelectric power projects in the United States

International Nuclear Information System (INIS)

Cada, G.F.

1996-01-01

Obstruction of fish movements by dams continues to be the major environmental issue facing the hydropower industry in the US. Dams block upstream migrations, which can cut off adult fish form their historical spawning grounds and severely curtail reproduction. Conversely, downstream-migrating fish may be entrained into the turbine intake flow and suffer turbine-passage injury or mortality. Hydroelectric projects can interfere with the migrations of a wide variety of fish. Maintenance, restoration or enhancement of populations of these species may require the construction of facilities to allow for upstream and downstream fish passage. The Federal Energy Regulatory Commission (FERC), by law, must give fish and wildlife resources equal consideration with power production in its licensing decisions, must be satisfied that a project is consistent with comprehensive plans for a waterway (including fisheries management plans), and must consider all federal and state resource agency terms and conditions for the protection of fish and wildlife. As a consequence, FERC often requires fish passage mitigation measures as a condition of the hydropower license when such measures are deemed necessary for the protection of fish. Much of the recent research and development efforts of the US Department of Energy's Hydropower Program have focused on the mitigation of impacts to upstream and downstream fish passage. This paper descries three components of that effort: (1) a survey of environmental mitigation measures at hydropower sites across the country; (2) a critical review of the effectiveness of fish passage mitigation measures at 16 case study sites; and (3) ongoing efforts to develop new turbine designs that minimize turbine-passage mortality

Hydroelectric power plant with variable flow on drinking water adduction

Science.gov (United States)

Deaconu, S. I.; Babău, R.; Popa, G. N.; Gherman, P. L.

2018-01-01

The water feeding system of the urban and rural localities is mainly collected with feed pipes which can have different lengths and different levels. Before using, water must be treated. Since the treatment take place in the tanks, the pressure in the inlet of the station must be diminished. Many times the pressure must be reduced with 5-15 Barr and this is possible using valves, cavils, and so on. The flow capacity of the water consumption is highly fluctuating during one day, depending on the season, etc. This paper presents a method to use the hydroelectric potential of the feed pipes using a hydraulic turbine instead of the classical methods for decreasing the pressure. To avoid the dissipation of water and a good behavior of the power parameters it is used an asynchronous generator (AG) which is coupled at the electrical distribution network through a static frequency converter (SFC). The turbine has a simple structure without the classical devices (used to regulate the turbine blades). The speed of rotation is variable, depending on the necessary flow capacity in the outlet of the treatment station. The most important element of the automation is the static frequency converter (SFC) which allows speeds between 0 and 1.5 of the rated speed of rotation and the flow capacity varies accordingly with it.

Technical and economical studies on the modernization of small-scale hydroelectric power plants: difficulties and proposals; Estudo tecnico-economicos de mordernizacao de PCH`s: Dificuldades e propostas

Energy Technology Data Exchange (ETDEWEB)

Almeida, Antonio Tadeu Lyrio de; Beltrame, Eduardo; Santos, Afonso Henriques Moreira; Souza, Zulcy [Escola Federal de Engenharia de Itajuba, MG (Brazil)

1989-12-31

This work describes and analyses some technical alternatives to be used in re-designing or reforming small-scale hydroelectric power plants. In addition, some criteria are also presented in order to proceed a comparative evaluation based on economic feasibility 7 refs. 5 figs. 1 tab.

Technical and economical studies on the modernization of small-scale hydroelectric power plants: difficulties and proposals; Estudo tecnico-economicos de mordernizacao de PCH`s: Dificuldades e propostas

Energy Technology Data Exchange (ETDEWEB)

Almeida, Antonio Tadeu Lyrio de; Beltrame, Eduardo; Santos, Afonso Henriques Moreira; Souza, Zulcy [Escola Federal de Engenharia de Itajuba, MG (Brazil)

1990-12-31

This work describes and analyses some technical alternatives to be used in re-designing or reforming small-scale hydroelectric power plants. In addition, some criteria are also presented in order to proceed a comparative evaluation based on economic feasibility 7 refs. 5 figs. 1 tab.

Fish passage hydroelectric power plant Linne, Netherlands. Didson measurements; Vispassage waterkrachtcentrale Linne. Didson metingen

Energy Technology Data Exchange (ETDEWEB)

Van Keeken, O.A.; Griffioen, A.B. [Institute for Marine Resources and Ecosystem Studies IMARES, Wageningen UR, IJmuiden (Netherlands)

2011-11-15

The hydroelectric power plant in the Dutch Maas River near Linne has a fish deflection and passage system. For this study, two evenings in the months of August and September 2011 were dedicated to examining the extent to which fish approached and used the fish passage system. To establish the swimming behavior of the fish, a high-resolution sonar (DIDSON) was used, which generates moving images of fish in turbid waters, to study their behavior. [Dutch] Bij de waterkrachtcentrale in de Maas bij Linne is een visafweer- en geleidingssysteem aangelegd. In deze studie werd op twee avonden verdeeld over de maanden augustus en september 2011 gekeken in hoeverre vissen het visgeleidingssysteem benaderden en gebruikten. Voor het vaststellen van het zwemgedrag van de vissen is gebruik gemaakt van de DIDSON, een hoge resolutie sonar waarmee bewegende beelden kunnen worden gemaakt van vis in troebel water om het gedrag te bestuderen.

Evaluation of Hydraulic Potentiality for Small Scale Hydroelectric Power Systems. Base for formulation of plans for the municipal development

International Nuclear Information System (INIS)

Torres Q, E.

1997-01-01

Colombia has been recognized as the fourth country in the world with high hydraulic resources, the best way to exploit this potential is by talking use of as a main hydroelectric alternative on isolated areas of the country. At the beginnings there was an study the Potential Hydraulic Assessment was performed at the Chicamocha Deep Valley, due to this area count with a good hydrologic and meteorological network enough, to investigate the hydro climate behavior

Hydroelectric project at Angliers : Investigation and public hearing report

International Nuclear Information System (INIS)

Girard, S.; Bouchard, B.

2003-08-01

Public hearings were held by the Bureau d'audiences publiques sur l'environnement concerning a proposed hydroelectric development project at Angliers, Quebec. The proposed hydroelectric plant is to be located at the outlet of the Des Quinze reservoir in the Temiscamingue region (northwest of the province). The site is within the municipality of Angliers, approximately 130 kilometres south of Rouyn-Noranda. The project will exploit the hydroelectric potential of the Ottawa River through a dam at Des Quinze reservoir, which is currently the property of the federal government. During the hearings, several issues were raised, and various topics examined. The political and administrative framework was reviewed, as well as the integration of the project within the community. The impacts, environmental as well as economic, were discussed. After careful examination of all the information, the Commission concluded that the hydroelectric project at Angliers was justified and acceptable from an environmental perspective. The expected economic impact on the community was an essential aspect in determining if the project was acceptable. refs., 4 figs

The Dokka delta - consequences of water power development in the River Dokka

International Nuclear Information System (INIS)

Halvorsen, Gunnar; Sloreid, Svein-Erik; Walseng, Bjoern

1997-11-01

The report concerns an investigation done in Norway on environmental consequences of hydroelectric power development in the Dokka river. This development has reduced the water flow through the Dokka delta to about 50% of its natural level. The biological effect of the reduction has been studied in the period from 1987 to 1990, comprising two years before and two years after the reduction. Sedimentation, water chemistry, planktonic and littoral crustaceans and bottom fauna have been studied. 223 refs., 58 figs., 9 tabs

The emergence of small hydroelectric plants and the urbanization process in the hinterland of São Paulo state (1890-1930

Directory of Open Access Journals (Sweden)

Débora Marques de Almeida Nogueira Mortati

2011-06-01

Full Text Available The period focused in this paper is from 1890 to 1930, when São Paulo state began its industrialization process, the coffee economy was booming and, in that context, it was founded the first hydroelectric power company in the state. This panorama advanced till 1930, when the coffee economy began in crisis, the industry was already established and the construction of hydroelectric plants after 1930 takes on another course: the large dams, closing the cycle of small hydroelectric plants. The electricity generation in Brazil follows the paths of the railroad; and it was drawing newborders between rural and urban, rural and industry. The cities aspect was changing as the “improvements” were availability, many powered by electricity. The nascent industries were also occupying the space between the railroad and energy; what created new districts and centralities. Thispaper analyzes the processes that hydroelectric energy sets off in São Paulo state; and focuses on itsconsequences.

Ticks (Acari: Ixodidae on wild animals from the Porto-Primavera Hydroelectric power station area, Brazil

Directory of Open Access Journals (Sweden)

Marcelo B Labruna

2002-12-01

Full Text Available From June 2000 to June 2001, a total of 741 ticks were collected from 51 free-living wild animals captured at the Porto-Primavera Hydroelectric power station area, located alongside an approximately 180 km course of the Paraná river, between the states of São Paulo and Mato Grosso do Sul, comprising 9 species of 3 genera: Ambly-omma (7 species, Boophilus (1 and Anocentor (1. A total of 421 immature Amblyomma ticks were reared in laboratory until the adult stage, allowing identification of the species. A. cajennense was the most frequent tick species (mostly immature stages collected on 9 host species: Myrmecophaga tridactyla, Tamandua tetradactyla,Cerdocyon thous, Puma concolor,Tayassu tajacu, Mazama gouazoubira,Hydrochaeris hydrochaeris,Alouatta caraya, Cebus apella. Other tick species were less common, generally restricted to certain host taxa.

A summary of water chemistry changes following hydroelectric development in northern Manitoba, Canada

International Nuclear Information System (INIS)

Williamson, D.A.; Ralley, W.E.

1993-01-01

A detailed summary is provided from five major water quality studies undertaken in northern Manitoba to assess the effects of hydroelectric projects on water quality. Physical changes occurring with the area affected by both the Churchill River diversion and Lake Winnipeg regulation have led to water quality changes in many cases. Phosphorus appeared to increase at some sites while decreasing at others, reflecting a new balance between erosion of new P sources and later uptake or deposition. Color declined at all sites except at Red Head Rapids. Turbidity increased in Southern Indian Lake and in the Burntwood River at Thompson in response to the Churchill diversion, but turbidity has historically exceeded drinking water quality objectives. It is unclear whether the observed changes in water chemistry may have the potential to directly impact aquatic life and wildlife. A major limitation of the water quality data set is the lack of pre-development data for many of the trace elements analyzed. Relative to an upstream reference site, concentrations of Cu, Pb, and Zn were slightly higher at some sites affected by hydroelectric development, but it is not known whether this condition existed prior to development. Exceedances of water quality objectives for some trace elements occurred intermittently at some sites but it is not possible to determine whether these exceedances occurred infrequently historically as a result of natural variability. 34 refs., 1 fig., 13 tabs

Potential of Micro Hydroelectric Generator Embedded at 30,000 PE Effluent Discharge of Sewerage Treatment Plant

Science.gov (United States)

Che Munaaim, M. A.; Razali, N.; Ayob, A.; Hamidin, N.; Othuman Mydin, M. A.

2018-03-01

A micro hydroelectric generator is an energy conversion approach to generate electricity from potential (motion) energy to an electrical energy. In this research, it is desired to be implemented by using a micro hydroelectric generator which is desired to be embedded at the continuous flow of effluent discharge point of domestic sewerage treatment plant (STP). This research evaluates the potential of electricity generation from micro hydroelectric generator attached to 30,000 PE sewerage treatment plant. The power output obtained from calculation of electrical power conversion is used to identify the possibility of this system and its ability to provide electrical energy, which can minimize the cost of electric bill especially for the pumping system. The overview of this system on the practical application with the consideration of payback period is summarized. The ultimate aim of the whole application is to have a self-ecosystem electrical power generated for the internal use of STP by using its own flowing water in supporting the sustainable engineering towards renewable energy and energy efficient approach. The results shows that the output power obtained is lower than expected output power (12 kW) and fall beyond of the range of a micro hydro power (5kW - 100kW) since it is only generating 1.58 kW energy by calculation. It is also observed that the estimated payback period is longer which i.e 7 years to recoup the return of investment. A range of head from 4.5 m and above for the case where the flow shall at least have maintained at 0.05 m3/s in the selected plant in order to achieved a feasible power output. In conclusion, wastewater treatment process involves the flowing water (potential energy) especially at the effluent discharge point of STP is possibly harvested for electricity generation by embedding the micro hydroelectric generator. However, the selection of STP needs to have minimum 4.5 meter head with 0.05 m3/s of continuously flowing water to make

Potential of Micro Hydroelectric Generator Embedded at 30,000 PE Effluent Discharge of Sewerage Treatment Plant

Directory of Open Access Journals (Sweden)

Che Munaaim M.A.

2018-01-01

Full Text Available A micro hydroelectric generator is an energy conversion approach to generate electricity from potential (motion energy to an electrical energy. In this research, it is desired to be implemented by using a micro hydroelectric generator which is desired to be embedded at the continuous flow of effluent discharge point of domestic sewerage treatment plant (STP. This research evaluates the potential of electricity generation from micro hydroelectric generator attached to 30,000 PE sewerage treatment plant. The power output obtained from calculation of electrical power conversion is used to identify the possibility of this system and its ability to provide electrical energy, which can minimize the cost of electric bill especially for the pumping system. The overview of this system on the practical application with the consideration of payback period is summarized. The ultimate aim of the whole application is to have a self-ecosystem electrical power generated for the internal use of STP by using its own flowing water in supporting the sustainable engineering towards renewable energy and energy efficient approach. The results shows that the output power obtained is lower than expected output power (12 kW and fall beyond of the range of a micro hydro power (5kW - 100kW since it is only generating 1.58 kW energy by calculation. It is also observed that the estimated payback period is longer which i.e 7 years to recoup the return of investment. A range of head from 4.5 m and above for the case where the flow shall at least have maintained at 0.05 m3/s in the selected plant in order to achieved a feasible power output. In conclusion, wastewater treatment process involves the flowing water (potential energy especially at the effluent discharge point of STP is possibly harvested for electricity generation by embedding the micro hydroelectric generator. However, the selection of STP needs to have minimum 4.5 meter head with 0.05 m3/s of continuously flowing

Analysis of environmental issues related to small-scale hydroelectric development. III. Water level fluctuation

Energy Technology Data Exchange (ETDEWEB)

Hildebrand, S.G. (ed.)

1980-10-01

Potential environmental impacts in reservoirs and downstream river reaches below dams that may be caused by the water level fluctuation resulting from development and operation of small scale (under 25MW) hydroelectric projects are identified. The impacts discussed will be of potential concern at only those small-scale hydroelectric projects that are operated in a store and release (peaking) mode. Potential impacts on physical and chemical characteristics in reservoirs resulting from water level fluctuation include resuspension and redistribution of bank and bed sediment; leaching of soluble organic matter from sediment in the littoral zone; and changes in water quality resulting from changes in sediment and nutrient trap efficiency. Potential impacts on reservoir biota as a result of water level fluctuation include habitat destruction and the resulting partial or total loss of aquatic species; changes in habitat quality, which result in reduced standing crop and production of aquatic biota; and possible shifts in species diversity. The potential physical effects of water level fluctuation on downstream systems below dams are streambed and bank erosion and water quality problems related to resuspension and redistribution of these materials. Potential biological impacts of water level fluctuation on downstream systems below dams result from changes in current velocity, habitat reduction, and alteration in food supply. These alterations, either singly or in combination, can adversely affect aquatic populations below dams. The nature and potential significance of adverse impacts resulting from water level fluctuation are discussed. Recommendations for site-specific evaluation of water level fluctuation at small-scale hydroelectric projects are presented.

Some aspects of nuclear power development in Czechoslovakia

International Nuclear Information System (INIS)

Simandl, S.; Stefec, V.

1986-01-01

Some technical and economic aspects of the development of nuclear power in Czechoslovakia are discussed. Specific conditions include the high population density of the territory and related factors as well as the shortage of raw materials for the construction of technological equipment and for the construction of buildings. It is stated that projects of future nuclear power plants should use reserves, such as are available in the standard project of a WWER-1000 nuclear power plant now being used in Temelin, as against foreign nuclear power plants. This mainly includes a bigger built-up area per installed megawatt of power and a greater number of personnel for operation and maintenance. Also discussed is the world-wide growth of capital costs, of construction time and of the number of workers needed for the construction of nuclear power plants. With the exception of the V-2 nuclear power plant the construction time of Czechoslovak nuclear power plants does not exceed world average. The maximum number of workers required for construction, however, compares unfavourably with advanced capitalist countries. Operating costs in Czechoslovakia are more favourable for nuclear power plants than for coal burning power plants and pumped-storage hydroelectric plants. (Z.M.)

Ecological improvements to hydroelectric power plants under EEG. Guidance to environmental verifiers and water rights authorities

International Nuclear Information System (INIS)

Meyr, Christoph; Pfeifer, Hansjoerg; Schnell, Johannes; Hanfland, Sebastian

2011-11-01

The use of hydropower as a renewable form of energy is experiencing a renaissance due to the energy transition in Bavaria. The fishery evaluate not uncritically this development, because hydroelectric plants generally normally represent a considerable intervention in water and therefore in the habitat of the fish. In this case it should be noted that just often not even the minimum requirements of ecology are fulfilled at existing plants according to the Federal Water Act. [de

Analysis of the Level-Release Polynomial from a Hydroelectric Plant

Directory of Open Access Journals (Sweden)

Ieda Hidalgo

2012-02-01

Full Text Available The mathematic representation of the tailrace elevation as function of the water release can be modified, for example, by the geomorphologic impact of large floods. The level-release polynomial from a hydroelectric plant is important information to computational models used for optimization and simulation of the power generation systems operation. They depend on data quality to provide reliable results. Therefore, this paper presents a method for adjusting of the tailrace polynomial based on operation data recorded by the plant’s owner or company. The proposed method uses a non-linear regression tool, such as Trendline in Excel. A case study has been applied to the data from a large Brazilian hydroelectric plant whose operation is under the coordination of the Electric System ational Operator. The benefits of the data correction are analyzed using a simulation model for the hydroelectric plants operation. This simulator is used to reproduce the past operation of the plant, first with official data and second with adjusted data. The results show significant improvements in terms of quality of the data, contributing to bring the real and simulated operation closer.

An overview of renewable energy in Spain. The small hydro-power case

International Nuclear Information System (INIS)

Montes, G.M.; Lopez, M. del Mar Serrano; Gamez, M. del Carmen Rubio; Ondina, A.M.

2005-01-01

Development of hydroelectric energy, a renewable source of power, is guaranteed and maintained by the Plan of Promotion of the Renewable Energies 1999-2010 (PLAFER). This is arrived at by means of a definition and establishment of a series of power objectives in which an increase in the hydroelectric sector in anticipated. This study corresponds to a revision of the present situation of the mini-hydraulic energy, it is expected of evolution, and development in Spain. (author)

An overview of renewable energy in Spain. The small hydro-power case

Energy Technology Data Exchange (ETDEWEB)

Montes, G.M. [Universidad de Granada (Spain). Departamento de Ingenieria Civil; Lopez, M. del Mar Serrano [Institute for the Diversification and Saving of the Energy, Madrid (Spain). Hydroelectric Department; Gamez, M. del Carmen Rubio; Ondina, A.M. [Universidad de Granada (Spain). Departamento de Ingenieria Civil, Ingenieria de la Construccion

2005-10-01

Development of hydroelectric energy, a renewable source of power, is guaranteed and maintained by the Plan of Promotion of the Renewable Energies 1999-2010 (PLAFER). This is arrived at by means of a definition and establishment of a series of power objectives in which an increase in the hydroelectric sector in anticipated. This study corresponds to a revision of the present situation of the mini-hydraulic energy, it is expected of evolution, and development in Spain. (author)

Generating electric power for export from Atlantic Canada to the U.S

International Nuclear Information System (INIS)

Valentine, H.

2009-01-01

Hydroelectric power from Newfoundland-Labrador and Quebec has been imported to the northeastern United States for many years. Newfoundland's government has recently declared its intention to develop a Lower Churchill Falls hydroelectric power project. Electricity from the new project will be transported using an undersea power cable placed under the Strait of Belle Isle from Labrador to Newfoundland. A second undersea cable will transport power into Nova Scotia, New Brunswick, and the United States. The cable may also support the development of several other hydroelectric projects in New Brunswick and Nova Scotia. Studies have shown that the construction of 2 trans-isthmus power canals will reduce the extreme tidal height and raise the mass of water flowing into the Bay of Fundy. Kinetic turbines placed beneath the ocean surface across the entrances to the Bay of Fundy, Chignecto Bay, and the Minas Basin will generate up to 500 MW of power. Power generation from off-peak periods can be stored using pumped hydraulic storage installations. It was concluded that the projects may become viable within 10 to 30 years. 4 figs

Strenner Canyon project owes much to Lester Pelton. [Use of Pelton turbine in hydroelectric project

Energy Technology Data Exchange (ETDEWEB)

Townsend, C.

1985-09-01

The development of the Stenner Canyon Hydroelectric Project involving 14 miles of pipeline in the hills of California and using the Pelton turbine originally designed in 1883 is described. The city of San Luis Obispo generates dollar 300,000 in revenues by selling the power produced. Four million kWh per annum is fed into the local grid which is sufficient to service about 750 householders for the entire year. (U.K.).

The emergence of small hydroelectric plants and the urbanization process in the hinterland of São Paulo state (1890-1930)

OpenAIRE

Mortati, Débora Marques de Almeida Nogueira; Argollo Ferrão, André Munhoz de

2011-01-01

The period focused in this paper is from 1890 to 1930, when São Paulo state began its industrialization process, the coffee economy was booming and, in that context, it was founded the first hydroelectric power company in the state. This panorama advanced till 1930, when the coffee economy began in crisis, the industry was already established and the construction of hydroelectric plants after 1930 takes on another course: the large dams, closing the cycle of small hydroelectric plants. The el...

Nuclear power in developing countries

International Nuclear Information System (INIS)

Lane, J.A.; Covarrubias, A.J.; Csik, B.J.; Fattah, A.; Woite, G.

1977-01-01

This paper is intended to be a companion to similar papers by OECD/NEA and CMEA and will summarize the nuclear power system plans of developing Member States most likely to have nuclear programmes before the year 2000. The information that is presented is derived from various sources such as the Agency 1974 study of the market for nuclear power in developing countries, the annual publication, ''Power Reactors in Member States - 1976 Edition'', various nuclear power planning studies carried out by the Agency during the period 1975 and 1976, direct correspondence with selected Member States and published information in the open literature. A preliminary survey of the prospects for nuclear power in Member States not belonging to the OECD or having centrally planned economies indicates that about 27 of these countries may have operating nuclear power plants by the end of the century. In the 1974 Edition of the ''Market Survey'' it was estimated that the installed nuclear capacity in these countries might reach 24 GW by 1980, 157 GW by 1190 and 490 GW by the year 2000. It now appears that these figures are too high for a number of reasons. These include 1) the diminished growth in electrical demand which has occurred in many Member States during the last several years, 2) the extremely high cost of nuclear plant construction which has placed financial burdens on countries with existing nuclear programmes, 3) the present lack of commercially available small and medium power reactors which many of the smaller Member States would need in order to expand their electric power systems and 4) the growing awareness of Member States that more attention should be paid to exploitation of indigenous energy sources such as hydroelectric power, coal and lignite

An environmental overview of the Cat Arm hydroelectric development

International Nuclear Information System (INIS)

Barnes, J.L.

1987-01-01

The Cat Arm Dam hydroelectric development in Newfoundland comprises 10 dams, three tunnels, two canals and a 127 MW powerhouse. The scheme develops 127 MW from 380.5 m of head and comprises: ten dams of varying heights up to 53 m; a bathtub type overflow spillway 330 m in length; a 230 m long inverted U-shaped diversion tunnel; an 800 m long, inverted U-shaped low pressure forebay tunnel; two bog and rock cut tunnels leading to and from the forebay tunnels; a surface powerhouse containing two Pelton turbines; and a 178 km long, 230 kV transmission line. An overview is provided of the environmental assessment, project impacts, and cost of environmental protection associated with the project. Impacts were centered around fish and aquatic life in the created reservoir and downstream of the powerhouse, loss of ungulate (moose and caribou) habitat due to flooding, loss of forestry resources due to flooding, and the disturbance of land during construction. The overall cost of environmental protection was $7,977,000, only 2% of the total project cost. 17 refs., 1 tab

A model optimization for pre-dispatch among the hydroelectric generator unities; Um modelo de otimizacao para pre-despacho entre as unidades geradoras de hidreletricas

Energy Technology Data Exchange (ETDEWEB)

Colnago, Glauber R.; Correia, Paulo B. [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil). Faculdade de Engenharia Mecanica]. E-mails: grcolnago@fem.unicamp.br; pcorreia@fem.unicamp.br

2006-07-01

This work proposes a mixed integer nonlinear programming model to pre-dispatch of a hydroelectric power plant. In the model we want to minimize the losses in the electricity generation with conditions of electricity demand, operational prohibited zones and units' efficiency data. The Xingo Hydroelectric Power Plant was utilized in the mode tests. The solver used was Lingo 8.0. (author)

Public choice in water resource management: two case studies of the small-scale hydroelectric controversy

Energy Technology Data Exchange (ETDEWEB)

Soden, D.L.

1985-01-01

Hydroelectric issues have a long history in the Pacific Northwest, and more recently have come to focus on developing environmentally less-obtrusive means of hydroelectric generation. Small-scale hydroelectric represents perhaps the most important of these means of developing new sources of renewable resources to lessen the nation's dependence on foreign sources of energy. Each potential small-scale hydroelectric project, however, manifests a unique history which provides a highly useful opportunity to study the process of collective social choice in the area of new energy uses of water resources. Utilizing the basic concepts of public choice theory, a highly developed and increasingly widely accepted approach in the social sciences, the politicalization of small-scale hydroelectric proposals is analyzed. Through the use of secondary analysis of archival public opinion data collected from residents of the State of Idaho, and through the development of the two case studies - one on the Palouse River in Eastern Washington and the other at Elk Creek Falls in Northern Idaho, the policy relevant behavior and influence of major actors is assessed. Results provide a useful test of the utility of public-choice theory for the study of cases of natural-resources development when public involvement is high.

Advanced, Environmentally Friendly Hydroelectric Turbines for the Restoration of Fish and Water Quality

International Nuclear Information System (INIS)

Brookshier, P.A.; Cada, G.F.; Flynn, J.V.; Rinehart, B.N.; Sale, M.J.; Sommers, G.L.

1999-01-01

Hydroelectric power contributes about 10 percent of the electrical energy generated in the United States, and nearly 20 percent of the worlds electrical energy. The contribution of hydroelectric generation has declined in recent years, often as a consequence of environmental concerns centering around (1) restriction of upstream and downstream fish passage by the dam, and (2) alteration of water quality and river flows by the impoundment. The Advanced Hydropower Turbine System (AHTS) Program of the U.S. Department of Energy is developing turbine technology which would help to maximize global hydropower resources while minimizing adverse environmental effects. Major technical goals for the Program are (1) the reduction of mortality among turbine-passed fish to 2 percent or less, compared to current levels ranging up to 30 percent or greater; and (2) development of aerating turbines that would ensure that water discharged from reservoirs has a dissolved oxygen concentration of at least 6 mg/L. These advanced, environmentally friendly turbines would be suitable both for new hydropower installations and for retrofitting at existing dams. Several new turbine designs that have been he AHTS program are described

Battle looms over hydroelectric dam relicensing

International Nuclear Information System (INIS)

Simpson, J.

1993-01-01

Environmental groups, buoyed by support from influential lawmakers, are vowing to change the Federal Energy Regulatory Commission's (FERC's) hydroelectric relicensing procedures. For too long, the groups say, the hydroelectric industry has benefitted from a cozy relationship with the FERC, which has emphasized economic over environmental considerations. The success or failure of the environmentalists agenda will likely prove critical to the hydroelectric industry. With 237 hydroelectric licenses up for renewal this year - the most ever considered by the FERC in one year - and four vacant seats at the Commission, FERC hydro policy appears poised for upheaval. The groups have proposed a multipoint program to address perceived shortcomings in the FERC's hydroelectric relicensing procedures. The program includes recommendations to: Shorten dam licenses (which currently stretch 30 to 50 years) and require the FERC to periodically reevaluate the terms of hydropower licenses; Increase Congressional oversight of the FERC to assure adherence to environmental laws, including the National Environmental Policy Act, which mandates the preparation of environmental impact statements where appropriate; Mandate facilities for upstream and downstream fish passage; Establish a mitigation fund, collectable from dam owners, for river conservation and restoration programs; Promote all alternatives to relicensing projects, including denial of project licenses; and Reassign the FERC's hydropower jurisdiction to another federal agency, such as the Environmental Protection Agency or the Department of the Interior

[The social hygiene problems in the operator work of hydroelectric power station workers and the means for enhancing work capacity].

Science.gov (United States)

Karakashian, A N; Lepeshkina, T R; Ratushnaia, A N; Glushchenko, S S; Zakharenko, M I; Lastovchenko, V B; Diordichuk, T I

1993-01-01

Weight, tension and harmfulness of professional activity, peculiarities of labour conditions and characteristics of work, shift dynamics of operative personnel's working capacity were studied in the course of 8-hour working day currently accepted at hydroelectric power stations (HEPS) and experimental 12-hour schedule. Working conditions classified as "admissible", positive dynamics of operators' state, their social and material contentment were a basis for 12-hour two-shift schedule to be recommended as more appropriate. At the same time, problem of optimal shift schedules for operative personnel of HEPS remains unsolved and needs to be further explored.

New social movements and political process: The politics of hydroelectric power in Switzerland

Science.gov (United States)

Lehmann, Luzia M.

This dissertation analyzes the mobilization and impact of the ecology movement mobilizing against and challenging hydroelectric power plants in the Alps. It argues that the political process model is the most fruitful framework for such a study, linking a political system's structural constraints and opportunities to movement action via organizational resources. The mobilization process resulting in movement impact is conceived as an interactive process among social movements, authorities, other opponents, and potential counter movements. The case study method is then used to analyze three action campaigns launched against hydro power plants in Graubunden since the 1970s: Ilanz I and II, Greina, and Curciusa. In terms of the movement's narrow goal of preventing a plant, Ilanz I and II is a failure, Greina a success, and Curciusa ambiguous. Yet the author defines movement impact more broadly, including procedural, reactive and proactive substantive impact, and structural impact, changes in the alliance/conflict system, and social learning. Based on the evidence from the case studies, these factors affect movement outcome positively: visibility in the media and framing the debate, adjusting the target level and movement repertoire to the opportunity structure and the spatial concentration of the issue, proactivity, and organizational resources with a well developed division of labor, internal communication, and a non-partisan alliance system at all levels. There are two main conceptual contributions. First, the author analyzes the political opportunity structure at all levels of the federal polity--the national, cantonal, and communal--as well as the interplay among the levels. The fact that the cantonal and communal levels exhibit more elements of closure than the national level helps explain differences in movements' organizational resources, movement repertoire, targeting of movement action, and thus movement impact. Second, the author develops the spatial

A UK guide to intake fish-screening regulations, policy and best practice with particular reference to hydroelectric power schemes

Energy Technology Data Exchange (ETDEWEB)

Turnpenny, A W.H.; Struthers, G; Hanson, P

1998-07-01

A review of fish screening regulations in England, Wales, Scotland, and Northern Ireland is presented, and a summary of findings on screening legislation is given. The views of hydroelectric scheme developers, owners and operators are considered, and recommendations including the development of a risk assessment procedure are discussed. Fish screening technology, bypasses and other escape routes, and common fault in screen design and operation are examined, and guidance to Best Practice is given. (UK)

Wind as a feasible alternative source for improving the deficiency of hydroelectricity in Tanzania

International Nuclear Information System (INIS)

Kainkwa, R. M.

2006-01-01

Hydroelectricity is the main source of electricity in Tanzania since about 86% of the electricity generated is from this source. During the dry season there is normally a storage of water in the dams and as such the electricity generated is below the demand. In 2004 a natural gas power plant was inaugurated to alleviate this shortage of electricity. When generating electricity from natural gas, exotic gases are emitted which pollute our environment. This source of energy also cannot regenerate itself within the human life scale. Wind is a renewable source that can be used to supplement the shortage of hydroelectricity in Tanzania. Wind speed data collected from a location with high wind energy potential shows that electricity can be generated from the wind to alleviate this shortage of hydroelectricity. Wind and rainfall data demonstrate further that the windy season, which is from July to November coincide with the dry season in which the use of wind energy in electric generation can help to fill the gap of the hydroelectricity that prevails during that season. The use of wind instead of natural gas will reduce the environmental pollution that results from extracting energy from the fossil fuel source.(Author)

Status Review of Wildlife Mitigation at 14 of 27 Major Hydroelectric Projects in Idaho, 1983-1984 Final Report.

Energy Technology Data Exchange (ETDEWEB)

Martin, Robert C.; Mehrhoff, L.A.

1985-01-01

The Pacific Northwest Electric Power Planning and Conservation Act and wildlife and their habitats in the Columbia River Basin and to compliance with the Program, the wildlife mitigation status reports coordination with resource agencies and Indian Tribes. developed the Columbia River Basin Fish and Wildlife Program development, operation, and maintenance of hydroelectric projects on existing agreements; and past, current, and proposed wildlife factual review and documentation of existing information on wildlife meet the requirements of Measure 1004(b)(l) of the Program. The mitigation, enhancement, and protection activities were considered. In mitigate for the losses to those resources resulting from the purpose of these wildlife mitigation status reports is to provide a resources at some of the Columbia River Basin hydroelectric projects the river and its tributaries. To accomplish this goal, the Council were written with the cooperation of project operators, and in within Idaho.

Report on the workshop examining the potential effects of hydroelectric development on Beluga of the Nelson River Estuary, Winnipeg, Manitoba, November 6 and 7, 1990

International Nuclear Information System (INIS)

Lawrence, M.J.; Paterson, M.; Baker, R.F.; Schmidt, R.

1992-01-01

A summary is presented of discussions and conclusions at a workshop held to examine the potential effects of hydroelectric development on beluga whales of the Nelson River estuary in Manitoba. Background information is provided on the estuary, beluga whales and their use of arctic and subarctic estuaries, and hydroelectric development on the Nelson River. Potential impacts of such development on the whales are reviewed in the categories of direct effects of changes in physical-chemical conditions (temperature and discharge), indirect effects of disturbances mediated through the food chain, and effects on socioeconomic conditions that may affect beluga whales. Since the biology of beluga whales and other phenomena of interest in this study are poorly known, recommendations are made for research and monitoring activities in the Nelson River estuary. In general, the workshop participants felt that changes in the estuary due to hydroelectric development would not be large enough to affect beluga whales strongly. 34 refs., 1 fig

Using computational fluid dynamics to address fish passage concerns at the Grand Falls-Windsor hydroelectric development

International Nuclear Information System (INIS)

Woolgar, R.; Eddy, W.

2006-01-01

As a result of replacing the penstocks used to divert water to the generating station with a power canal, the study of out-migration survival of Atlantic salmon at Abitibi-Consolidated Company of Canada's (Abitibi) Grand Falls-Windsor Hydroelectric Development began in 1997. Using a behavioral louvre system, a fish bypass diversion system was implemented within the power canal. When the power canal first commenced operation in 1997 and after a new 30 MW Unit was installed in 2003, the efficiency of the system to divert the migrating smolt was low. In order to test improvements to the system, physical modeling was conducted at the University of Waterloo between 1997 and 2002. This led to increased efficiencies of fish passage before the new unit was installed. However, recent results of the physical modeling, including the new unit, did not detail the extent of changes required to the system to increase fish bypass efficiency. Abitibi then engaged SGE Acres Limited in the winter of 2004 to investigate alternatives for increasing the effectiveness of the Grand Falls Power Canal Fish Bypass Diversion System. Abitibi then re-engaged SGE Acres in July 2005 for follow-up work after the collection of physical data in the power canal by Environment Canada in June 2005. This paper presented documentation on the original analysis conducted in 2004 and 2005, and the follow-up work conducted in 2005 and 2006. Specifically, the paper discussed the development of a computational fluid dynamics model (FLOW-3D) to represent the existing condition of the power canal; simulations of the existing condition for various flows; review of model results to confirm if the model is representing overall canal hydraulics; simulation of various alternatives to increase fish bypass efficiency; and, selection of a preferred alternative. As part of the follow-up work, the paper presented a review of Environment Canada measurements and comparison with FLOW-3D model results, and additional

Analysis of Environmental Issues Related to Small-Scale Hydroelectric Development IV: Fish Mortality Resulting From Turbine Passage

Energy Technology Data Exchange (ETDEWEB)

Turbak, Susan C. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Reichle, Donna R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shriner, Carole R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

1981-01-01

The purpose of this report is to provide summary information for use by potential developers and regulators of small-scale hydroelectric projects (defined as existing dams that can be retrofitted to a total site capacity of ≤30 MW), where turbine-related mortality of fish is a potential issue affecting site-specific development. Mitigation techniques for turbine-related mortality are not covered in this report.

Robust Optimisation for Hydroelectric System Operation under Uncertainty

OpenAIRE

Apostolopoulou, D.; De Greve, Z.; McCulloch, M.

2018-01-01

In this paper, we propose an optimal dispatch scheme for a cascade hydroelectric power system that maximises the head levels of each dam, and minimises the spillage effects taking into account uncertainty in the net load variations, i.e., the difference between the load and the renewable resources, and inflows to the cascade. By maximising the head levels of each dam the volume of water stored, which is a metric of system resiliency, is maximised. In this regard, the operation of the cascade ...

Hydraulic potential evaluation for micro - scale hydroelectric generation at Chicamocha River Basin - micro - scale hydroelectric plants

International Nuclear Information System (INIS)

Pacheco P, C.M.; Parga C, G.M.

1995-01-01

In development of technical and scientific cooperation treaty carried out between INEA (today Ingeominas) and Catholic University of Colombia, was elaborated the program: Potential Evaluation Hydraulic for Small hydroelectric plants; whose purpose is to carry electrical energy service to smaller populations and rural zones to all municipalities of country. To begin the program was selected the corresponding area to Chicamocha River Basin, the one which corresponds to 72 Municipalities of Boyaca and Santander Departments, due to the fact that is had good information area originating from diagnostic elaborated by INDERENA with the objective of formulating the Classification Plan and the Basin Managing. This Thesis consists of: 1. To identify all micro-basins; 2. To analyze energy demand on part of kernels of population seated in the study area; 3. To evaluate energy generating capacity of water currents and 4. As of the obtained results, to propose alternative for small hydroelectric plants design (PCH) according to defined needs

Indian areas threatened by hydroelectric projects in Brazil

Energy Technology Data Exchange (ETDEWEB)

Aspelin, P L; Santos, S.C. dos

1981-10-01

In Brazil, as elsewhere, high priority is being given to developing domestic energy sources due to the spectacular increase in the cost of imported petroleum in recent years. This paper discusses the present situation of the thirty-two to thirty-four various Indian areas presently known to be threatened by seven major hydro-electric projects and one flood-control project, either planned or underway, in or directly involving Brazil. A total of at least 100,000 hectares of Indian land (or nearly one hectare for each remaining Brazilian Indian) will be flooded or otherwise expropriated by these projects. Past efforts by the Brazilian National Indian Foundation (FUNAI) to protect the Indians from the pressure of ''national development'' have not been sufficient. Research, planning, publicity, and political pressure are necessary to ensure that their efforts regarding these hydroelectric projects are more successful.

Evaluation of environmental impacts caused by hydroelectric power plants in native forest areas and mitigation measures

International Nuclear Information System (INIS)

Ramalho, Cyro Pinheiro

1992-01-01

The following work has the intention of demonstrating the importance of native forest to the human life, not only through its inherent qualities as something to preserve, but also as a source of great resources, and in particular hydroelectric resource that, by today's necessities are bounded to be explored. The negative effects caused by the implementation of a hydroelectric plant are shown together with the necessity of adoption of measures that would soften the environment impact of it. For the adoption of those measures, many forest studies were proposed in the search for its complete characterization. Each of these studies are duly defined and presented in their general and specific goals. The most adequate methodology is finally recommended. (author). 14 refs

Impact of the construction of a hydroelectric power plant on the land cover and use: study of the basin Lajeado Bonito - RS

International Nuclear Information System (INIS)

Tramontina, Juliana; Breunig, Fabio Marcelo

2015-01-01

This work aims to analyze the impact of the construction of a hydroelectric power plant on land cover and use in Lajeado Bonito-RS watershed. The study evaluated the temporal evolution of land cover and use in the watershed for the period before and after to installation of hydroelectric plant Foz do Chapeco (2009 to 2010). For temporal analysis, two images were interpreted, one orbital image of High Resolution Camera (HRC) onboard of the CBERS-2B, acquired in December 29, 2009. And a high-resolution image obtained from Google Earth application, acquired at December 26, 2010. The land cover and use maps were generated by vector editing SPRING software. We found that the predominant land use related to agriculture and livestock, including bare soil. In 2009 this class accounted for 70.23% of the total area, while it come to represent 61.8% in 2010. At the same time, there was increase of areas with native forest cover, from 27.49% covered by forest in 2009, to 31% in 2010. The results showed that in both 2009 and 2010 years, approximately 49% of permanent preservation area were used inappropriately. (author)

Cooperation of nuclear, thermal and hydroelectric power plants in the power system

International Nuclear Information System (INIS)

1984-01-01

The conference heard 36 papers of which 23 were incorporated in INIS. The subjects discussed were: the development of power industry in Czechoslovakia, methods of statistical analysis of data regarding nuclear power plant operation, the incorporation of WWER nuclear power plants in the power supply system, the standardization of nuclear power plants, the service life of components, use of nuclear energy sources, performance of the reactor accident protection system, the use of nuclear power and heating plants in Hungary, risk analysis, optimization of nuclear power plants, accidents caused by leakage of the primary and secondary circuit. (J.P.)

The Use of Advanced Hydroelectric Turbines to Improve Water Quality and Fish Populations

International Nuclear Information System (INIS)

Brookshier, P.A.; Cada, G.F.; Flynn, J.V.; Rinehart, B.N.; Sale, M.J.; Sommers, G.L.

1999-01-01

Hydroelectric power contributes about 10 percent of the electrical energy generated in the United States, and nearly 20 percent of the worlds electrical energy. It is a renewable energy source that can contribute significantly to reduction of greenhouse gases by offsetting conventional carbon-based electricity generation. However, rather than growing in importance, hydroelectric generation has actually declined in recent years, often as a consequence of environmental concerns centering around (1) restriction of upstream and downstream fish passage by the dam, and (2) alteration of water quality and river flows by the impoundment. The Advanced Hydropower Turbine System (AHTS) Program of the U.S. Department of Energy is developing turbine technology which would help to maximize global hydropower resources while minimizing adverse environmental effects. Major technical goals for the Program are (1) the reduction of mortality among turbine-passed fish to 2 percent or less, compared to current levels ranging up to 30 percent or greater; and (2) development of aerating turbines that would ensure that water discharged from reservoirs has a dissolved oxygen concentration of at least 6 mg/L. These advanced, environmentally friendly turbines would be suitable both for new hydropower installations and for retrofitting at existing dams. Several new turbine designs that have been developed in the initial phases of the AHTS program are described

THE SIGNIFICANCE OF STRUCTURAL AND GEOLOGICAL RELATIONSHIP ASSESSMENT IN THE CONSTRUCTION OF THE OMBLA UNDERGROUND HYDROELECTRIC POWER PLANT

Directory of Open Access Journals (Sweden)

Renato Buljan

1997-12-01

Full Text Available The construction design of the underground hydroelectric plant Ombla required geological and structural investigations to he carried out. Due to past earthquakes in the area permanent tectonic movements were inferred. Therefore, in the wider and adjacent surroundings of the Ombla spring it was necessary to analyze the structural fabric and the geodynamic characteristics of the area. The most active zone encountered is the front part of a thrust fault belonging to the Dinaricum regional structural unit. The compressive regime is maintained as a response to the regional stress of an approximately S-N orientation. Different displacements of various parts of the Dinaricum unit are present. Along the rim of the structural blocks, the Hum-Om-bla fault zone extends, accompanied by left transcurrent faults, Through this zone the main groundwater drainage occurs supplying the Ombla spring. In the local Ombla spring area this zone is characterized by three sub-blocks and three major faults. The most important fault for the vital facilities of the Ombla hydroelectric power plant is the Pločice fault which divides the structural sub-blocks. Along this fault zone there are four mutually connected. The lowest two arc active groundwater draining systems supplying the Ombla spring. The data on local stress implies the following deformation of sub-blocks: sub-blocks 2c and 2f are displaced along normal faults from 20° to 30° to the left, downwards, while the sub-block 2 d is displaced along the Pločice thrust fault of 100° to 130° to the left, upwards. The structural data confirmed that the building of an underground dam with a height from 100 to 130 m was feasible. The connection between the caverns and the fault zone was determined. The unfavorable position of the active Pločice fault zone imposes the construction of vital Ombla power plant facilities underground.

Optimal control of hydroelectric facility incorporating pump storage

International Nuclear Information System (INIS)

Zhao, Guangzhi; Davison, Matt

2009-01-01

We consider a simple model of a pump-assisted hydroelectric facility operating in a market with time-varying but deterministic power prices and constant water inflows. The engineering details of the facility are described by a model containing several parameters. We present an algorithm for optimizing first the energy and then the profit produced by these plants. This algorithm allows us to describe the relationships between control trajectory and time, and between inflow and price. Remarkably, we see that under some reasonable choices of facility parameters and for power prices that are not extremely variable, the optimal profit operation of these facilities is not too different from their optimal energy operation, and the control is less affected by the price as the inflow rate increases. (author)

Categorization of the trophic status of a hydroelectric power plant reservoir in the Brazilian Amazon by statistical analyses and fuzzy approaches.

Science.gov (United States)

da Costa Lobato, Tarcísio; Hauser-Davis, Rachel Ann; de Oliveira, Terezinha Ferreira; Maciel, Marinalva Cardoso; Tavares, Maria Regina Madruga; da Silveira, Antônio Morais; Saraiva, Augusto Cesar Fonseca

2015-02-15

The Amazon area has been increasingly suffering from anthropogenic impacts, especially due to the construction of hydroelectric power plant reservoirs. The analysis and categorization of the trophic status of these reservoirs are of interest to indicate man-made changes in the environment. In this context, the present study aimed to categorize the trophic status of a hydroelectric power plant reservoir located in the Brazilian Amazon by constructing a novel Water Quality Index (WQI) and Trophic State Index (TSI) for the reservoir using major ion concentrations and physico-chemical water parameters determined in the area and taking into account the sampling locations and the local hydrological regimes. After applying statistical analyses (factor analysis and cluster analysis) and establishing a rule base of a fuzzy system to these indicators, the results obtained by the proposed method were then compared to the generally applied Carlson and a modified Lamparelli trophic state index (TSI), specific for trophic regions. The categorization of the trophic status by the proposed fuzzy method was shown to be more reliable, since it takes into account the specificities of the study area, while the Carlson and Lamparelli TSI do not, and, thus, tend to over or underestimate the trophic status of these ecosystems. The statistical techniques proposed and applied in the present study, are, therefore, relevant in cases of environmental management and policy decision-making processes, aiding in the identification of the ecological status of water bodies. With this, it is possible to identify which factors should be further investigated and/or adjusted in order to attempt the recovery of degraded water bodies. Copyright © 2014 Elsevier B.V. All rights reserved.

The using of alternative energy sources: the case of Small Hydroelectric Power Plants and the natural gas fuelled thermal electric power plants; O uso de fontes alternativas de energia: o caso das Pequenas Centrais Hidreletricas (PCHs) e das termoeletricas movidas a gas natural

Energy Technology Data Exchange (ETDEWEB)

Souza, Patricia Aparecida Pereira; Mauad, Frederico Fabio [Sao Paulo Univ., Sao Carlos, SP (Brazil). Escola de Engenharia. Centro de Recursos Hidricos e Ecologia Aplicada; Leme, Alessandro Andre [Sao Carlos Univ., SP (Brazil). Programa de Pos-graduacao em Ciencias Sociais; Valencio, Norma Felicidade Lopes da Silva [Sao Carlos Univ., SP (Brazil). Dept. de Ciencias Sociais

2002-07-01

This paper emphasizes the modifications occurred in the brazilian electric sector at the end of the twenty century. The work also highlight the alternative sources (Small hydroelectric and thermoelectric power plants) as the most feasible in the political and institutional scenery for the complementation of the generator park.

New data on species of Demidospermus (Dactylogyridae: Monogenea) parasitizing fishes from the reservoir of the Itaipu Hydroelectric Power Station, Paraná State, Brazil, with new synonymies.

Science.gov (United States)

Cohen, Simone C; Kohn, Anna

2008-01-01

Eight known species of Demidospermus (Dactylogyridae, Monogenea) were collected from siluriform fishes from reservoir of the Itaipu Hydroelectric Power Station, Paraná, Brazil. Four of them are recorded for the first time in Brazil, enlarging their geographical distribution: Demidospermus armostus, Demidospermus anus, Demidospermus bidiverticulatum and Demidospermus valenciennesi. Demidospermus labrosi is synonymized with Demidospermus cornicinus and Demidospermus mandi with Demidospermus leptosynophallus and reported from two new hosts. Demidospermus paravalenciennesi and Demidospermus uncusvalidus were also collected.

78 FR 6319 - Eastern Hydroelectric Corporation; Notice Rejecting Request for Rehearing

Science.gov (United States)

2013-01-30

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 7019-068] Eastern... an order amending license Article 401 for Eastern Hydroelectric Corporation's (Eastern Hydroelectric....\\1\\ On January 11, 2013, Eastern Hydroelectric filed a request for rehearing of Commission staff's...

Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility

Energy Technology Data Exchange (ETDEWEB)

Jack Q. Richardson

2012-06-28

Final Technical Report for the Recovery Act Project for the Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility. The Abiquiu hydroelectric facility existed with two each 6.9 MW vertical flow Francis turbine-generators. This project installed a new 3.1 MW horizontal flow low flow turbine-generator. The total plant flow range to capture energy and generate power increased from between 250 and 1,300 cfs to between 75 and 1,550 cfs. Fifty full time equivalent (FTE) construction jobs were created for this project - 50% (or 25 FTE) were credited to ARRA funding due to the ARRA 50% project cost match. The Abiquiu facility has increased capacity, increased efficiency and provides for an improved aquatic environment owing to installed dissolved oxygen capabilities during traditional low flow periods in the Rio Chama. A new powerhouse addition was constructed to house the new turbine-generator equipment.

Mathematical Modeling in Systems for Operational Evaluation of the Stress-Strain State of the Arch-Gravity Dam at the Sayano-Shushenskaya Hydroelectric Power Plant

Energy Technology Data Exchange (ETDEWEB)

Bellendir, E. N.; Gordon, L. A., E-mail: lev-gordon@mail.ru; Khrapkov, A. A.; Skvortsova, A. E., E-mail: SkvortsovaAE@vniig.ru [B. E. Vedeneev All-Russia Research Institute of Hydraulic Engineering (VNIIG) (Russian Federation)

2017-01-15

Current studies of the stress-strain state of the dam at the Sayano-Shushenskaya Hydroelectric Power Plant at VNIIG based on mathematical modeling including full scale and experimental data are described. Applications and programs intended for automatic operational evaluation of the stress-strain state of the dam for optimizing control of the upper race level in the course of the annual filling-drawdown cycle and during seismic events are examined. Improvements in systems for monitoring the stress-strain state of concrete dams are proposed.

Implantation of hydroelectric power plants and the environmental licensing: the importance of the articulation among the electrical and environment sectors in Brazil; A implantacao de usinas hidreletricas e o processo de licenciamento ambiental: a importancia da articulacao entre os setores eletrico e de meio ambiente no Brasil

Energy Technology Data Exchange (ETDEWEB)

Facuri, Micheline Ferreira

2004-07-01

Hydroelectric power plants stand for the main generation source in Brazil. The basis of the national generator park installed capacity is the exploration of hydraulic potency when the Brazilian energetic die is observed. The atmosphere that the Brazilian electric sector is found now asks for new generator units. In this sense, it would decrease energy offer deficit risk, which collaborates to the electric energy offer expansion effort. This research aims to join and to comment on a group of data and information regarding to the process of implantation of hydroelectric power plants already bid. It includes up to date data on hydroelectric power plants bid since 1996. This data describe the main implications found in the enterprises that are late in their schedules. It shows that the greater the environmental management instruments incorporation in hydroelectric projects planning process, the greater the possibility of new hydraulic generation enterprises with better quality of environmental studies implantation. In this way, it makes even better the process of environmental licensing that could occur in a more adequate deadline. As a result, 28 - out of 54 - enterprises bid are found with environmental problems, which represent 43.30% of bestowed potency. It is possible to infer, thus, that there is a need of more interaction between the electric and the environmental sectors. After analyzing the results, it is concluded that the generation enterprises environmental licensing has been worrying the electric sector agents. This happens due to the need of refinement on environmental studies or due to the need of bureaucracy to get licenses - mainly regarding to judicial actions and environmental issues. Finally, the adequate identification of environmental licensing drags allows a more efficient process to hydroelectric power plants implantation, which generates more consistent and faster results. (author)

Productivity and efficiency analysis of privatized hydroelectric generation with a sometimes free input

Science.gov (United States)

Halabi, Claudia Elizabeth

2000-10-01

In this paper I use a stochastic distance frontier approach to assess the performance of Chile's hydroelectric industry, which operates within a regulatory framework designed to achieve a competitive outcome. An occasionally free input, water, is the sole energy input. The econometric analysis indicates substantial technical and allocative inefficiencies as well as volatile productivity scores, due presumably to the volatility of the energy input. Some allocative inefficiencies have diminished dramatically as the time under deregulation has grown. The Lerner index suggests that firms in the industry enjoy some degree of market power, reflected by prices that exceed marginal costs. This market power is consistent with operation within a centralized dispatch center, as predicted by a strategic bidding model. I also find that run-of-river plants exhibit increasing returns to scale, while plants relying on dams show slightly diminishing returns. The shadow marginal cost for run-of-river plants is found to be close to zero. Substantial cost savings could be realized if firms in Chile's hydro-electric generation industry were to operate efficiently.

Deep geothermal resources in Quebec and in Colombia: an area that may develop based on French experience on geothermal power plants

International Nuclear Information System (INIS)

Blessent, D.; Raymond, J.; Dezayes, C.

2016-01-01

Because of an increasing demand in electricity and a necessity of reducing greenhouse gas emissions, several countries envisage the development of the renewable energies. The geothermal energy is a particularly interesting alternative because it allows a production of electricity which is not influenced by weather conditions and it requires relatively restricted surface areas compared, for example, to the area required by a hydroelectric power plant. The literature review presented here summarizes the main characteristics of the geothermal potential in Quebec, in sedimentary basins, and in Colombia, in the area of the Nevado del Ruiz volcanic complex. Currently, in these two regions, the hydro-electric power dominates the electricity production, but there is a similar interest to the development of geothermal power plants. The French sites of Soultz-sous-Forets in Alsace and Boiling in Guadeloupe are respectively presented as an example of exploitation of geothermal improved systems (Enhanced Geothermal System; EGS) and geothermal resources in volcanic regions. The first site constitutes a model for the future development of the deep geothermal exploitation in Quebec, whereas the second is an example for Colombia. A description of environmental impacts related to the exploitation of deep geothermal resources is presented at the end of this paper. (authors)

Occupational allergy after exposure to caddis flies at a hydroelectric power plant.

Science.gov (United States)

Kraut, A; Sloan, J; Silviu-Dan, F; Peng, Z; Gagnon, D; Warrington, R

1994-01-01

A cross sectional survey was conducted in a hydroelectric power plant in which the workforce was exposed to large numbers of caddis flies. 28 of 57 employees participated. About 50% of the participants reported work related eye, nose, and sinus symptoms and wheezing. Working in locations with greater exposure to caddis flies was significantly associated with work related symptoms. 17 workers (61%) were skin prick positive to a laboratory prepared caddis fly antigen (LCFA) made from the remains of caddis flies present in the plant and 11 (39%) had positive reactions to a commercial caddis fly antigen (CCFA). Workers stationed in heavily exposed areas were 3.7 times as likely to have a positive response to the LCFA (p = 0.009) and 5.3 times as likely to have a positive response to the CCFA (p = 0.036). 13 (46%) of survey respondents reported three or more work related symptoms. 10 (91%) CCFA positive workers reported three or more work related symptoms. Pulmonary function studies revealed slight, but not significantly decreased forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and FEV1/FVC ratios in workers who were skin test positive to either caddis fly preparation when compared with those who were negative. One worker who was skin test positive to both antigens had a cross shift fall in FEV1 of 20% predicted. Occupational allergy to caddis flies proved to be a significant health problem at this work site. PMID:8044233

75 FR 35020 - Wilkesboro Hydroelectric Company, LLC; Notice Soliciting Scoping Comments

Science.gov (United States)

2010-06-21

... Hydroelectric Company, LLC; Notice Soliciting Scoping Comments June 15, 2010 Take notice that the following hydroelectric application has been filed with the Commission and is available for public inspection. a. Type of.... Applicant: Wilkesboro Hydroelectric Company, LLC. e. Name of Project: W. Kerr Scott Hydropower Project. f...

33 CFR 209.141 - Coordination of hydroelectric power operations with power marketing agencies.

Science.gov (United States)

2010-07-01

... Commanders will develop, in coordination with their respective power marketing agency, a system for exchanging operating information. The system will include general operating information and information on... power operations with power marketing agencies. 209.141 Section 209.141 Navigation and Navigable Waters...

Monitoring marginal erosion in hydroelectric reservoirs with terrestrial mobile laser scanner

Directory of Open Access Journals (Sweden)

A. M. G. Tommaselli

2014-06-01

Full Text Available Marginal erosions in reservoirs of hydroelectric plants have caused economic and environmental problems concerning hydroelectric power generation, reduction of productive areas and devaluing land parcels. The real extension and dynamics of these erosion processes are not well known for Brazilian reservoirs. To objectively assess these problems Unesp (Univ Estadual Paulista and Duke Energy are developing a joint project which aims at the monitoring the progression of some erosive processes and understanding the causes and the dynamics of this phenomenon. Mobile LASER scanning was considered the most suitable alternative for the challenges established in the project requirements. A MDL DynaScan Mobile LASER M150 scanner was selected which uses RTK for real time positioning integrated to an IMU, enabling instantaneous generation of georeferenced point clouds. Two different reservoirs were choose for monitoring: Chavantes (storage plant and Rosana (run-of-river plant, both in the Paranapanema River, border of São Paulo and Paraná States, Brazil. The monitoring areas are scanned quarterly and analysed with base on the point cloud, meshes, contours and cross sections. Cross sections are used to visualize and compute the rate and the dynamics of erosion. Some examples and quantitative results are presented along with an analysis of the proposed technique. Some recommendations to improve the field work and latter data processing are also introduced.

Hydroelectricity - An Answer To Energy Needs

Energy Technology Data Exchange (ETDEWEB)

Francois-Xausa, Maryse; Havard, David; Czerwinski, Francois; Teller, Olivier

2010-09-15

The energy challenges of the next 30 years appear daunting and, in certain cases, in conflict with one another. Their complexity is such that one solution alone cannot provide a full answer. It is nevertheless equally clear that hydro-electricity, being renewable, proven, highly efficient, storable and with still very significant resource potential, possesses a unique combination of attributes which will aid decision-makers to plan and execute energy development with confidence.

Financing future exports of Canada's electrical power equipment industry

International Nuclear Information System (INIS)

Hay, K.A.J.; Saravanamuttoo, C.A.

1992-01-01

The economic impact on the Canadian power sector of continued constraints on the availability of concessionary export financing is examined. An overview of the structure of the Canadian electrical power equipment industry is provided, followed by a discussion of its competitiveness and performance. Export prospects are outlined and separate reviews are presented of hydroelectric and thermal expansion. A global market of US $17 billion for hydroelectric power in the 1990s is forecast, and a market of US $300 billion for all forms of power generation in developing Asia. The export strategies of international competitive bidding, forming a consortium within an international multinational enterprise, co-financing with Japanese aid agencies, and direct negotiation are discussed. The costs and benefits of concessional financing are assessed and shown to bring net fiscal benefits. 12 refs., 2 tabs

Cordova Lake dam hydroelectric generating station case study

International Nuclear Information System (INIS)

Kerr, D.; Huxley, J.

1993-01-01

The Ontario Ministry of Natural Resources released a Crown owned site to the private water power industry as part of the small hydro site release program initiated by the Ontario Government in the mid 1980's. The Cordova Lake Dam Hydroelectric Generating Station, built on this site, has been in operation since the first week of October, 1992. Since that time, the plant has been operating with less than 1 % down time and has generated over 2,400 MWh of electricity. Algonquin Power Systems is responsible for the management and operations of the plant which includes full time monitoring from the company's Mississauga office and a part time employee at Cordova Lake. Cordova Lake Dam is located on the Crowe River at the outlet of Cordova Lake, approximately 125 kilometers east of Toronto, Ontario. The total cost of the Cordova Lake Dam project was $1.6 million. Algonquin Power contributed 20% equity to the project. Algonquin Power was also responsible for all engineering and geotechnical work and for completing the construction and equipment contracts. 1 tab., 2 figs

Environmental analysis report for the hydroelectric project on the Sheldrake River in the Courbe du Sault section in the municipality of Riviere-au-Tonnerre by the Societe d'energie riviere Sheldrake Inc

International Nuclear Information System (INIS)

Michaud, A.; Paul, M.; Brunet, G.

2010-01-01

The Societe d'energie riviere Sheldrake Inc. (SERS Inc.) is planning to exploit the hydroelectric potential of the Sheldrake River in the Quebec municipality of Riviere au Tonnere. The proposed project will involve building a hydroelectric power station with a maximum capacity of 25 MW on the Sheldrake River, in the Courbe du Sault section. The project will also comprise a dam, a water reservoir and an overflow spillway. The project meets the province's 2006-2015 energy strategy to develop small-scale hydroelectric facilities. The project was subject to an environmental assessment as required by the province of Quebec. This environmental analysis addressed the major challenges facing the hydroelectric development at the Courbe du Sault section of the River, notably the impact on fish habitat, wetlands and the local and regional economic benefits. The environmental assessment did not indicate any habitat destruction for trout or salmon in the forebay. The Quebec Ministry of Sustainable Development, Environment and Parks has deemed the project to be acceptable given that certain conditions are met, including thresholds to stabilize the water level and the construction of a downstream fish passage facility to allow for safe fish migration. 22 refs., 2 tabs., 5 figs., 3 appendices.

Turning to account the implicit side effects of hydroelectric projects implying reservoirs

International Nuclear Information System (INIS)

Ionescu, S.

1996-01-01

Operation of the hydroelectric projects including relatively important water reservoirs provides implicitly side effects favorable to water management (increase of minimum provided flows, flood routing, etc) and to related fields (additional facilities for water supply, extension of the public utility networks as: road, telecommunication, electric lines, favoring the tourism and recreative activities). The paper suggests methodologies for economic and financial assessment of these effects, the turning to account of which, may increase the efficiency of the hydroelectric development and may stimulate the interest for new investments in the field.(author). 3 figs., 5 refs

Optimal control of hydroelectric facilities

Science.gov (United States)

Zhao, Guangzhi

This thesis considers a simple yet realistic model of pump-assisted hydroelectric facilities operating in a market with time-varying but deterministic power prices. Both deterministic and stochastic water inflows are considered. The fluid mechanical and engineering details of the facility are described by a model containing several parameters. We present a dynamic programming algorithm for optimizing either the total energy produced or the total cash generated by these plants. The algorithm allows us to give the optimal control strategy as a function of time and to see how this strategy, and the associated plant value, varies with water inflow and electricity price. We investigate various cases. For a single pumped storage facility experiencing deterministic power prices and water inflows, we investigate the varying behaviour for an oversimplified constant turbine- and pump-efficiency model with simple reservoir geometries. We then generalize this simple model to include more realistic turbine efficiencies, situations with more complicated reservoir geometry, and the introduction of dissipative switching costs between various control states. We find many results which reinforce our physical intuition about this complicated system as well as results which initially challenge, though later deepen, this intuition. One major lesson of this work is that the optimal control strategy does not differ much between two differing objectives of maximizing energy production and maximizing its cash value. We then turn our attention to the case of stochastic water inflows. We present a stochastic dynamic programming algorithm which can find an on-average optimal control in the face of this randomness. As the operator of a facility must be more cautious when inflows are random, the randomness destroys facility value. Following this insight we quantify exactly how much a perfect hydrological inflow forecast would be worth to a dam operator. In our final chapter we discuss the

Fuzzy logic approach for energetic and economic evaluation of hydroelectric projects

International Nuclear Information System (INIS)

Iliev, Atanas M.

2003-01-01

A mathematical model for energetic and economic evaluation of hydroelectric projects is developed. The main advantage of the proposed methodology is that the model considers uncertainty and vagueness which appears during the decision making process. Due to modeling of variables that are non statistical in their character, fuzzy logic approach is fully incorporated in the model. The first step in energetic evaluation of the hydro power projects is determination of the characteristic of the efficiency of the units to be installed in hydro power plants. For this purpose the model which uses the best characteristics of Artificial Network Fuzzy Inference System (ANFIS) is applied. The method is tested on real systems: HPP Tikves- the power plant in operation and HPP Kozjak - the power plant in construction. The results obtained from practical implementation show that the proposed approach gives superior results than classical polynomial approximation. The model for determining the consumption characteristic of hydro power plant is developed by Sugeno Fuzzy Logic System with polynomials in the consequent part of the rules. Model takes into account the variable gross head of HPP, as well as, the number of units which will be in operation for given output. Modeling of the gross head and power output are performed by expert's design membership functions. This model is practically applied on HPP Tikves for determination of the consumption characteristic for several gross head. The plausible yearly production of electricity from hydro power project, which is important for estimation of the benefit from the project, is calculated by mixed fuzzy-statistical model. hi this approach fuzzy set of the inflow is constructed according to the statistical parameters. The calculation of the production of electricity is realized for a several hydrological conditions which are described by linguistic variables. Finally, Mamdani Fuzzy Inference System with fuzzy number in consequent part

Hydro-electric power - potential and limitations

Energy Technology Data Exchange (ETDEWEB)

Amundsen, T.

1995-12-31

This paper focuses on efficiency improvement in electric power production by matching the different characteristics for thermal power and hydropower. The paper introduces secondary hydropower defined as available power stored as hydro-energy in water reservoirs as a key element to achieve this goal. The iron-locked connection between GDP (Gross Domestic Product) and power consumption is discussed. As it also is a general understanding that GDP has to increase to accommodate the world`s growing population, the unavoidable conclusion is that more power is to be produced. 3 figs.

Hydro-electric power - potential and limitations

International Nuclear Information System (INIS)

Amundsen, T.

1995-01-01

This paper focuses on efficiency improvement in electric power production by matching the different characteristics for thermal power and hydropower. The paper introduces secondary hydropower defined as available power stored as hydro-energy in water reservoirs as a key element to achieve this goal. The iron-locked connection between GDP (Gross Domestic Product) and power consumption is discussed. As it also is a general understanding that GDP has to increase to accommodate the world's growing population, the unavoidable conclusion is that more power is to be produced. 3 figs

The hydroelectric power plant of the Widemann cotton mill (San Germano Chisone, Turin: perspectives of knowledge, conservation and enhancement.

Directory of Open Access Journals (Sweden)

Riccardo Rudiero

2017-12-01

Full Text Available Alpine valleys Pellice, Chisone and Germanasca, at whose feet lies the town of Pinerolo (TO, were among the first most industrialized areas of the Savoy state, vocation still spotted in the wide network of material evidences, such as production complexes, social facilities built for the working class, water channeling, electrification system. About the latter, there are still many active structures in the production of electricity. Some of them are dismantling, others are in operation, others are in the process of being transformed. This contribution will be focused on the case of the hydroelectric power plant of Widemann cotton mill in San Germano Chisone (TO, where the analysis of the existing structures and a diachronic reading of the archive documents has allowed to reconstruct its history and has provided the basis for some suggestions related to its conservation and enhancement.

Reflections on hydroelectric dams in the Amazon: water, energy and development

Directory of Open Access Journals (Sweden)

Bertha Koiffmann Becker

2012-12-01

Full Text Available The essay discusses the deployment of hydroelectric dams in the Amazon having as a starting point the relations between water and hydropower consumption at different scales of analyses. So, if all parts of the world are affected by global processes, they are not in the same way. The global scale is dominated by the apocalyptic discourse of increasing water scarcity and global warming, requiring the reduction of emissions of greenhouse gases through the use of renewable energy and new technologies. On a Brazilian national scale, the problems are, rather, how to manage the abundance of water with social and territorial justice, and how to stop the loss of 20% of the electricity produced. Finally, it is at the regional scale - in the Amazon - that major problems arise: i the biggest paradox between the abundance of water and social inaccessibility to this resource; ii most of the dams planned for the country will be built there, with the risk of negative impacts already known; iii the obligation of building sluices at all the proposed dams, suggested by the industrial sector in name of the rivers navigation, will serve, in fact, to export commodities produced in the Brazilian central region. An ethical question is, therefore, posed to society and to Brazilian government: are really needed so many hydroelectric dams in the Amazon?

Analysis of Environmental Issues Related to Small-Scale Hydroelectric Development II: Design Consideration for Passing Fish Upstream Around Dams

Energy Technology Data Exchange (ETDEWEB)

Hildebrandt, S. G. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bell, M. C. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Anderson, J. J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Richey, E. P. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Parkhurst, Z. E. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

1980-08-01

The purpose of this report is to provide general information for use by potential developers of small scale hydroelectric projects that will include facilities to pass migrating fish upstream around dams. The document is not intended to be a textbook on design of fish passage facilities, but rather to be a general guide to some factors that are important when designing such facilities.

Short-term cascaded hydroelectric system scheduling based on chaotic particle swarm optimization using improved logistic map

Science.gov (United States)

He, Yaoyao; Yang, Shanlin; Xu, Qifa

2013-07-01

In order to solve the model of short-term cascaded hydroelectric system scheduling, a novel chaotic particle swarm optimization (CPSO) algorithm using improved logistic map is introduced, which uses the water discharge as the decision variables combined with the death penalty function. According to the principle of maximum power generation, the proposed approach makes use of the ergodicity, symmetry and stochastic property of improved logistic chaotic map for enhancing the performance of particle swarm optimization (PSO) algorithm. The new hybrid method has been examined and tested on two test functions and a practical cascaded hydroelectric system. The experimental results show that the effectiveness and robustness of the proposed CPSO algorithm in comparison with other traditional algorithms.

Grid-connected in-stream hydroelectric generation based on the doubly fed induction machine

Science.gov (United States)

Lenberg, Timothy J.

Within the United States, there is a growing demand for new environmentally friendly power generation. This has led to a surge in wind turbine development. Unfortunately, wind is not a stable prime mover, but water is. Why not apply the advances made for wind to in-stream hydroelectric generation? One important advancement is the creation of the Doubly Fed Induction Machine (DFIM). This thesis covers the application of a gearless DFIM topology for hydrokinetic generation. After providing background, this thesis presents many of the options available for the mechanical portion of the design. A mechanical turbine is then specified. Next, a method is presented for designing a DFIM including the actual design for this application. In Chapter 4, a simulation model of the system is presented, complete with a control system that maximizes power generation based on water speed. This section then goes on to present simulation results demonstrating proper operation.

Dataset of long-term monitoring of ground-dwelling ants (Hymenoptera: Formicidae) in the influence areas of a hydroelectric power plant on the Madeira River in the Amazon Basin.

Science.gov (United States)

Fernandes, Itanna O; de Souza, Jorge L P

2018-01-01

Biodiversity loss is accelerating rapidly in response to increasing human influence on the Earth's natural ecosystems. One way to overcome this problem is by focusing on places of human interest and monitoring the changes and impacts on the biodiversity. This study was conducted at six sites within the influence area of the Santo Antônio Hydroelectric Power Plant in the margins of the Madeira River in Rondônia State. The sites cover a latitudinal gradient of approximately 100 km in the Brazilian Amazon Basin. The sampling design included six sampling modules with six plots (transects) each, totaling 30 sampling plots. The transects were distributed with 0 km, 0.5 km, 1 km, 2 km, 3 km and 4 km, measured perpendicularly from the river margin towards the interior of the forest. For sampling the ground-dwelling ants, the study used the ALL (ants of the leaf litter) protocol, which is standardized globally in the inventories of ant fauna. For the purpose of impact indicators, the first two campaigns (September 2011 to November 2011) were carried out in the pre-filling period, while campaigns 3 to 10 (February 2012 to November 2014) were carried out during and after the filling of the hydroelectric reservoir. A total of 253 events with a total of 9,165 occurrences were accounted during the monitoring. The ants were distributed in 10 subfamilies, 68 genera and 324 species/morphospecies. The impact on ant biodiversity during the periods before and after filling was measured by ecological indicators and by the presence and absence of some species/morphospecies. This is the first study, as far as we know, including taxonomic and ecological treatment to monitor the impact of a hydroelectric power plant on ant fauna. Until recently, most studies conducted on hydroelectric plants, located in the Amazon Basin, were carried out after the implementation of dams in order to assess their impacts on the environment and biodiversity (Benchimol and Peres 2015, Latrubesse et al. 2017

Electric power engineering in the Taiwan Chinese Republic

International Nuclear Information System (INIS)

Kozlov, V.B.

1992-01-01

The data charaterizing the status and prospects of development of electric power engineering in the Taiwan Chenese Republic are given. The Tainwan electric power consumptions are covered by operation of 56 large electric power plants (nuclear, thermal, hydroelectric ones). The marginal majority (58.1%) of the registered power is generated at thermal power plants. Electric power generation in 1991 amounted to 89639 million kWxh. At that 33878 million kWxh or about 37.9% were produced at NPPs

Instream flow needs below peaking hydroelectric projects

International Nuclear Information System (INIS)

Milhous, R.T.

1991-01-01

This paper reports on a method developed to assist in the determination of instream flow needs below hydroelectric projects operated in a peaking mode. Peaking hydroelectric projects significantly change streamflow over a short period of time; consequently, any instream flow methodology must consider the dual flows associated with peaking projects. The dual flows are the lowest flow and the maximum generation flow of a peaking cycle. The methodology is based on elements of the Physical Habitat Simulation System of the U.S. Fish and Wildlife Service and uses habitat, rather than fish numbers or biomas, as at basic response variable. All aquatic animals are subject to the rapid changes in streamflow which cause rapid swings in habitat quality. Some aquatic organisms are relatively fixed in location in the stream while others can move when flows change. The habitat available from a project operated in peaking mode is considered to be the minimum habitat occurring during a cycle of habitat change. The methodology takes in to consideration that some aquatic animals can move and others cannot move during a peaking cycle

Comparison of Gross Greenhouse Gas Fluxes from Hydroelectric Reservoirs in Brazil with Thermopower Generation

Science.gov (United States)

Rogerio, J. P.; Dos Santos, M. A.; Matvienko, B.; dos Santos, E.; Rocha, C. H.; Sikar, E.; Junior, A. M.

2013-05-01

Widespread interest in human impacts on the Earth has prompted much questioning in fields of concern to the general public. One of these issues is the extent of the impacts on the environment caused by hydro-based power generation, once viewed as a clean energy source. From the early 1990s onwards, papers and studies have been challenging this assumption through claims that hydroelectric dams also emit greenhouse gases, generated by the decomposition of biomass flooded by filling these reservoirs. Like as other freshwater bodies, hydroelectric reservoirs produce gases underwater by biology decomposition of organic matter. Some of these biogenic gases are effective in terms of Global Warming. The decomposition is mainly due by anaerobically regime, emitting methane (CH4), nitrogen (N2) and carbon dioxide (CO2). This paper compare results obtained from gross greenhouse fluxes in Brazilian hydropower reservoirs with thermo power plants using different types of fuels and technology. Measurements were carried in the Manso, Serra da Mesa, Corumbá, Itumbiara, Estreito, Furnas and Peixoto reservoirs, located in Cerrado biome and in Funil reservoir located at Atlantic forest biome with well defined climatologically regimes. Fluxes of carbon dioxide and methane in each of the reservoirs selected, whether through bubbles and/or diffusive exchange between water and atmosphere, were assessed by sampling. The intensity of emissions has a great variability and some environmental factors could be responsible for these variations. Factors that influence the emissions could be the water and air temperature, depth, wind velocity, sunlight, physical and chemical parameters of water, the composition of underwater biomass and the operational regime of the reservoir. Based in this calculations is possible to conclude that the large amount of hydro-power studied is better than thermopower source in terms of atmospheric greenhouse emissions. The comparisons between the reservoirs studied

An evaluation pattern for antimacrofouling procedures: Limnoperna fortunei larvae study in a hydroelectric power plant in South America.

Science.gov (United States)

Darrigran, Gustavo; Damborenea, Cristina; Greco, Nancy

2007-11-01

The effects of global change and globalization of trade on the biosphere spur an increase in bioinvasions and their subsequent impact on ecosystems. Continental invading bivalves are important because of their impact on artificially-constructed structures. Limnoperna fortunei was first found in the Neotropical region in 1991. Since then it has dispersed upstream in the Plata and Guaíba basins at a rate of 240 km y(-1). This species causes macrofouling in a manner similar to that caused by Dreissena polymorpha. This paper describes the biology of L. fortunei larvae from a hydroelectric power plant in South America. We suggest the importance of knowing the biology of the invading species and the need to consider the settlement patterns and densities of larvae in each of the sectors of the facility in order to achieve a sustainable prevention/control of macrofouling. This study acquires a global significance under the assumption that L. fortunei will eventually invade North America and Europe.

Downstream impacts of a Central Amazonian hydroelectric dam on tree growth and mortality in floodplain forests

Science.gov (United States)

Resende, A. F. D.; Silva, T. S. F.; Silva, J. D. S.; Piedade, M. T. F.; Streher, A. S.; Ferreira-Ferreira, J.; Schongart, J.

2017-12-01

The flood pulse of large Amazonian Rivers is characterized by predictable high- and low-water periods during the annual cycle, and is the main driving force in the floodplains regulating decomposition, nutrient cycles, productivity, life cycles and growth rhythms of floodplains' biota. Over at least 20 millions of years, tree species in these ecosystems developed complex adaptative mechanisms to tolerate flooding, such as the tree species Macrolobium acaciifolium (Fabaceae) and Eschweilera tenuifolia (Lecythidaceae) occupying the lower topographic positions in the floodplain forests along the oligothrophic black-water rivers. Tree growth occurs mainly during terrestrial phase, while during the aquatic phase the anoxic conditions result into a cambial dormancy and formation of annual tree rings. The hydroelectric dam Balbina which was installed in the Uatumã River (central Amazonia) during the 1980s altered significantly the flood pulse regime resulting into higher minimum and lower maximum annual water levels. The suppression of the terrestrial phase caused large-scale mortality of flood-adapted trees growing on the lower topographic positions, as evidenced by radiocarbon dating and cross-dating techniques (dendrochronology). In this study we estimated the extension of dead forests using high resolution ALOS/PALSAR radar images, for their detection along a fluvial distance of more than 280 km downstream of the power plant. Further we analyzed tree growth of 60 living individuals of E. tenuifolia by tree-ring analyses comparing the post- and pre-dam periods. We evaluated the impacts of the altered hydrological regime on tree growth considering ontogenetic effects and the fluvial distance of the trees to the dam. Since the Balbina power plant started operating the associated igapó forests lost about 11% of its cover. We found a significant reduction of tree growth of E. tenuifolia during the post-dam period as a consequence of the increasing aquatic phase duration

Combined solar photovoltaic and hydroelectric pumped storage power plant

International Nuclear Information System (INIS)

Gzraryan, R.V.

2009-01-01

Combined model of solar photovoltaic and pumped storage stations aimed at power supply for 40 rural houses are considered. The electric circuits of station and their acting regularities are developed and submitted. The both generation curve of photovoltaic station and load curve of electrical customer are considered. The power of hydraulic unit, pumping unit and photovoltaic station are calculated

An estimation of the capacity to produce hydrogen by wasted hydroelectric energy for the three largest Brazilian hydroelectric

Energy Technology Data Exchange (ETDEWEB)

Padilha, Janine C.; Trindade, Leticia G. da; Souza, Roberto F. de [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Inst. of Chemistry], Email: janine@iq.ufrgs.br; Miguel, Marcelo [Itaipu Binacional, Foz do Iguacu, PR (Brazil)

2010-07-01

The use of water wasted in hydroelectric plants as normalization dam excess, which constitute a hydrodynamic potential useful to generate electric energy which can be subsequently used to produce hydrogen and its subsequent consumption in fuel cells has been considered as an alternative for hydraulic energy-rich countries like Brazil. The case is examined in which all the water wasted in the hydroelectric plants, spilled by dam gates to maintain acceptable water levels, from the 3 largest Brazilian hydroelectric plants was used to produce hydrogen. During the year of 2008, the electric energy produced from this utilization would have been equivalent to 52.8 TWh, an amount that corresponds to an increase of ca. 15% of the total electric energy produced in the country. Furthermore, if this amount of hydrogen was used in the replacement of internal combustion vehicles by fuel cells, this would have prevented the production of 2.26 x 10{sup 7} ton of Co{sub 2} per year. This plan would also significantly decrease production and release of greenhouse gases. (author)

Benefits of fish passage and protection measures at hydroelectric projects

International Nuclear Information System (INIS)

Cada, G.F.; Jones, D.W.

1993-01-01

The US Department of Energy's Hydropower Program is engaged in a multi-year study of the costs and benefits of environmental mitigation measures at nonfederal hydroelectric power plants. An initial report (Volume 1) reviewed and surveyed the status of mitigation methods for fish passage, instream flows, and water quality; this paper focuses on the fish passage/protection aspects of the study. Fish ladders were found to be the most common means of passing fish upstream; elevators/lifts were less common, but their use appears to be increasing. A variety of mitigative measures is employed to prevent fish from being drawn into turbine intakes, including spill flows, narrow-mesh intake screens, angled bar racks, and lightor sound-based guidance measures. Performance monitoring and detailed, quantifiable performance criteria were frequently lacking at non-federal hydroelectric projects. Volume 2 considers the benefits and costs of fish passage and protection measures, as illustrated by case studies for which performance monitoring has been conducted. The report estimates the effectiveness of particular measures, the consequent impacts on the fish populations that are being maintained or restored, and the resulting use and non-use values of the maintained or restored fish populations

The adventure of hydroelectricity must continue

International Nuclear Information System (INIS)

Gravel, C.

1997-01-01

An interview with Andre Caille, president and CEO of Hydro-Quebec was presented. The interview focussed on the hydroelectric potential of Hydro-Quebec and open access to the American wholesale market. Hydro-Quebec has the capability to produce 160 to 170 terawatt hours of energy per year which is enough to meet all of Quebec''s needs and to export 12 to 15 per cent. According to M. Caille, research in the field of superconductivity would significantly benefit Hydro-Quebec, since the utility is responsible for 107,000 kilometers of transmission lines. If transmission line losses along those lines could be reduced, power stations could be built even farther from markets. With respect to pricing, Hydro-Quebec continues to sell electricity at regulated prices in Quebec, however, export prices to the U.S. are market driven

75 FR 4058 - CRD Hydroelectric, LLC; Notice of Application Ready for Environmental Analysis and Soliciting...

Science.gov (United States)

2010-01-26

... Hydroelectric, LLC; Notice of Application Ready for Environmental Analysis and Soliciting Comments... hydroelectric application has been filed with the Commission and is available for public inspection. a. Type of.... Applicant: CRD Hydroelectric, LLC. e. Name of Project: Red Rock Hydroelectric Project. f. Location: On the...

75 FR 71102 - White Mountain Hydroelectric Corp.; Notice of Application for Amendment of License, and...

Science.gov (United States)

2010-11-22

... Hydroelectric Corp.; Notice of Application for Amendment of License, and Soliciting Comments, Motions To Intervene, and Protests November 12, 2010. Take notice that the following hydroelectric application has been... Hydroelectric Corp. e. Name of Project: Apthorp Hydroelectric Project. f. Location: The project is located on...

Combining the Power of Wind and Water in Quebec

Energy Technology Data Exchange (ETDEWEB)

Richard, D.

2007-07-01

Wind varies and is impossible to store, major factors that have curbed and continue to curb the development of wind power. Hydroelectric generating stations with reservoirs, on the other hand, are quite capable of adjusting their output and can thus buffer fluctuations in consumption or in the output of other generating facilities on the grid. Combining wind power and hydropower thus involves using hydroelectric generating stations to offset the intermittent nature of wind power. The consumer, however, does not automatically reap the benefits of this complementarity. To achieve this, Quebec has implemented a 1,000-MW balancing agreement between the hydropower producer and the electricity distributor, which has signed wind power purchase agreements. The balancing agreement establishes two charges: one based on firming capacity provided by the producer and another linked to errors in the forecast of wind power generation that the distributor makes each day. This structure compensates the producer for the reduced margin of flexibility it has to engage in energy trading. (auth)

76 FR 62802 - Fairlawn Hydroelectric Company, LLC; Notice of Availability of Environmental Assessment

Science.gov (United States)

2011-10-11

... Hydroelectric Company, LLC; Notice of Availability of Environmental Assessment In accordance with the National...,000-kilowatt (kW) Jennings Randolph Hydroelectric Project located on the North Branch Potomac River in..., Washington, DC 20426. Please affix ``Jennings Randolph Hydroelectric Project No. 12715-003'' to all comments...

76 FR 46793 - Jordan Hydroelectric Limited Partnership; Notice of Availability of Environmental Assessment

Science.gov (United States)

2011-08-03

... Hydroelectric Limited Partnership; Notice of Availability of Environmental Assessment In accordance with the... for an original license for the 3.0-megawatt (MW) Flannagan Hydroelectric Project located on the Pound..., NE., Room 1-A, Washington, DC 20426. Please affix ``Flannagan Hydroelectric Project No. 12740-003...

Final Technical Report - Modernization of the Boulder Canyon Hydroelectric Project

Energy Technology Data Exchange (ETDEWEB)

Taddeucci, Joe [Dept. of Public Works, Boulder, CO (United States). Utilities Division

2013-03-29

The Boulder Canyon Hydroelectric Project (BCH) was purchased by the City of Boulder, CO (the city) in 2001. Project facilities were originally constructed in 1910 and upgraded in the 1930s and 1940s. By 2009, the two 10 MW turbine/generators had reached or were nearing the end of their useful lives. One generator had grounded out and was beyond repair, reducing plant capacity to 10 MW. The remaining 10 MW unit was expected to fail at any time. When the BCH power plant was originally constructed, a sizeable water supply was available for the sole purpose of hydroelectric power generation. Between 1950 and 2001, that water supply had gradually been converted to municipal water supply by the city. By 2001, the water available for hydroelectric power generation at BCH could not support even one 10 MW unit. Boulder lacked the financial resources to modernize the facilities, and Boulder anticipated that when the single, operational historical unit failed, the project would cease operation. In 2009, the City of Boulder applied for and received a U.S. Department of Energy (DOE) grant for $1.18 million toward a total estimated project cost of $5.155 million to modernize BCH. The federal funding allowed Boulder to move forward with plant modifications that would ensure BCH would continue operation. Federal funding was made available through the American Recovery and Reinvestment Act (ARRA) of 2009. Boulder determined that a single 5 MW turbine/generator would be the most appropriate capacity, given the reduced water supply to the plant. Average annual BCH generation with the old 10 MW unit had been about 8,500 MW-hr, whereas annual generation with a new, efficient turbine could average 11,000 to 12,000 MW-hr. The incremental change in annual generation represents a 30% increase in generation over pre-project conditions. The old turbine/generator was a single nozzle Pelton turbine with a 5-to-1 flow turndown and a maximum turbine/generator efficiency of 82%. The new unit is a

Small hydroelectricity at the low point?

International Nuclear Information System (INIS)

Mary, Olivier

2015-01-01

Small hydroelectricity displays an interesting potential in France (about 1.000 MW), but, as outlined in this article and despite technological advances, this sector is not growing significantly, notably for regulatory reasons: there is no consensus on the impact of these constructions on the environment. The article also outlines that development costs are always higher. These environmental and economic issues result in a transformation of the sector: old and ageing plants owned by individuals are sold to other actors, forms of deregulation are appearing to support the development. In parallel, the article notices that installations depend on their geographical context, and that it is also possible to produce electricity in plains

The renewal of hydroelectric concessions in competitive call

International Nuclear Information System (INIS)

2013-01-01

This document discusses various issues associated with the planned competitive call on the French hydraulic power plants. The principles of this competitive call for hydroelectric concessions are first addressed: administrative regime of concessions, competitive call process, criteria of selection of the concession holder, case of 'concession of valleys', potential competitors. It outlines and discusses the difficulties of this competitive call: France is the single country to implement this procedure; it concerns a national asset; it questions the guarantee of a future use of equipment at best for the energy benefits of French consumers; the competitive call is a nice idea indeed but extremely complex. A note discusses the profitability aspects of Plants for Transfer of Energy by Pumping

Active tectonics and Holocene versus modern catchment erosion rates at 300 MW Baspa II hydroelectric power plant (NW Himalaya, India)

Science.gov (United States)

Draganits, Erich; Grasemann, Bernhard; Gier, Susanne; Hofmann, Christa-Charlotte; Janda, Christoph; Bookhagen, Bodo; Preh, Alexander

2015-04-01

The Baspa River is one of the most important tributaries to the Sutlej River in the NW Himalaya (India). Its catchment is 1116 km2 in size, ranges from c. 6400 m asl to 1770 m asl and contains India's largest private hydroelectric facility, the 300 MW Baspa II. Geologically, the hydroelectric installation is located in the Higher Himalayan Crystalline, just above the active Karcham Normal Fault, which is reactivating the Early Miocene Main Central Thrust, one of the principal Himalayan faults. The area is seismically active and mass-movements are common. Around 8200 yrs BP the Baspa was dammed by a rock-avalanche dam, leading to the formation of the originally c. 260 m deep palaeo-lake Sangla palaeo-lake. Detailed sedimentological investigations and radiocarbon dating indicate that the palaeo-lake was completely filled with sediments until c. 5100 yrs BP. This makes the Sangla palaeo-lake to a very rare example of a mass-movement dam with very long duration and its lacustrine sediments represent a valuable archive for geological processes and environmental proxies within the Baspa catchment during the c. 3100 years of its existence - which are the aim of our study. At least 5 levels of soft-sediment deformation have been recorded in the exposed part of the lacustrine sediments of Sangla palaeo-lake, including brecciated laminae, overturned laminae, folds, faults and deformation bands, separated by undeformed deposits. They are interpreted as seismites, indicating at least 5 earthquakes within 2500 years strong enough to cause liquefaction. The 300 MW Baspa II hydro-electric power plant has been built exactly on top of this palaeo-lake. This special location represents a very rare possibility to evaluate the short-term, river load and hydrological parameters measured during the planning and operational stages of Baspa II with the long-term parameters gained from the palaeo-lake sediments from the catchment. This data show that the Mid-Holocene erosion rates of the

Prospects for power plant technology

International Nuclear Information System (INIS)

Schilling, H.D.

1993-01-01

Careful conservation of resources in the enlarged context of the rational utilization of energy, the environment and capital will determine future power plant technology. The mainstays will be the further development of power plant concepts based on fossil (predominantly coal) and nuclear fuels; world-wide, also regenerative and CO 2 -free hydro-electric power will play a role. Rapid conversion of the available potential requires clear, long-term stable and reliable political framework conditions for the release of the necessary entrepreneurial forces. (orig.) [de

A modelling methodology for assessing the impact of climate variability and climatic change on hydroelectric generation

International Nuclear Information System (INIS)

Munoz, J.R.; Sailor, D.J.

1998-01-01

A new methodology relating basic climatic variables to hydroelectric generation was developed. The methodology can be implemented in large or small basins with any number of hydro plants. The method was applied to the Sacramento, Eel and Russian river basins in northern California where more than 100 hydroelectric plants are located. The final model predicts the availability of hydroelectric generation for the entire basin provided present and near past climate conditions, with about 90% accuracy. The results can be used for water management purposes or for analyzing the effect of climate variability on hydrogeneration availability in the basin. A wide range of results can be obtained depending on the climate change scenario used. (Author)

Spatial and temporal abundance of three sylvatic yellow fever vectors in the influence area of the Manso hydroelectric power plant, Mato Grosso, Brazil.

Science.gov (United States)

Ribeiro, A L M; Miyazaki, R D; Silva, M; Zeilhofer, P

2012-01-01

Human biting catches of sylvatic yellow fever (SYF) vectors were conducted at eight stations in the influence area of the Manso hydroelectric power plant (Central Brazil) in sampling campaigns every 2 mo from July 2000 to November 2001. In total, 206 individuals were captured and classified as one of three species important for the transmission of SYF in Mato Grosso state: Haemagogus (Haemagogus) janthinomys (Dyar, 1921); Haemagogus (Conopostegus) leucocelaenus (Dyar & Shannon, 1924); and Sabethes (Sabethoides) chloropterus (Humboldt, 1819). The highest vector abundance was observed during the rainy season (November through March) and SYF vectors were present in all sampling points throughout the year, mainly in riparian and shadowed transitional forests at shadowed ramps.

State Models to Incentivize and Streamline Small Hydropower Development

Energy Technology Data Exchange (ETDEWEB)

Curtis, Taylor [National Renewable Energy Lab. (NREL), Golden, CO (United States); Levine, Aaron [National Renewable Energy Lab. (NREL), Golden, CO (United States); Johnson, Kurt [National Renewable Energy Lab. (NREL), Golden, CO (United States)

2017-10-31

In 2016, the hydropower fleet in the United States produced more than 6 percent (approximately 265,829 gigawatt-hours [GWh]) of the total net electricity generation. The median-size hydroelectric facility in the United States is 1.6 MW and 75 percent of total facilities have a nameplate capacity of 10 MW or less. Moreover, the U.S. Department of Energy's Hydropower Vision study identified approximately 79 GW hydroelectric potential beyond what is already developed. Much of the potential identified is at low-impact new stream-reaches, existing conduits, and non-powered dams with a median project size of 10 MW or less. To optimize the potential and value of small hydropower development, state governments are crafting policies that provide financial assistance and expedite state and federal review processes for small hydroelectric projects. This report analyzes state-led initiatives and programs that incentivize and streamline small hydroelectric development.

77 FR 41980 - Uniontown Hydro, LLC, Project No. 12958-001-Kentucky and Indiana, Uniontown Hydroelectric Project...

Science.gov (United States)

2012-07-17

...-001-Kentucky and Indiana, Uniontown Hydroelectric Project; Newburgh Hydro, LLC, Project No. 12962-001-Kentucky and Indiana, Newburgh Hydroelectric Project; Notice of Revised Restricted Service List for a... licenses for the proposed Uniontown Hydroelectric Project and Newburgh Hydroelectric Project. The...

75 FR 38800 - Jordan Hydroelectric Limited Partnership; Notice of Application Ready for Environmental Analysis...

Science.gov (United States)

2010-07-06

... Hydroelectric Limited Partnership; Notice of Application Ready for Environmental Analysis and Soliciting... following hydroelectric application has been filed with the Commission and is available for public... 13, 2009. d. Applicant: Jordan Hydroelectric Limited Partnership. e. Name of Project: Flannagan...

Concept of underground nuclear power plant

International Nuclear Information System (INIS)

Onishi, Sotoaki

1976-01-01

The concept of constructing nuclear power plants on the sea or underground as the future sitting is based on moving the present power plants on the ground with actual results to the sea or underground without changing the design. The underground nuclear power plants have many similar points to underground hydro-electric power stations with many achievements in the construction viewpoint, though they have their proper difficult problems. Of course, it requires to excavate larger underground caves than the case of underground hydro-electric power plants. The maximum dimensions of the caves have been determined through experience in practice. Therefore the developments of design theory and construction technique are desirable in this field. In discussing underground construction, two evaluating methods are considered for the shielding effect of base rocks. The minimum vertical distance up to ground surface from the center of the cave differs depending upon the in-cave pressure, and the conditions of base rock, soil and underground water in case of the accident assumed in the design, and is approximately 60m, if the cave is assumed to be an indefinite cylindrical shape, by the safer side calculation in the above two evaluations. (Wakatsuki, Y.)

75 FR 30805 - Gibson Dam Hydroelectric Company, LLC; Notice Soliciting Comments, and Final Terms and Conditions...

Science.gov (United States)

2010-06-02

... Hydroelectric Company, LLC; Notice Soliciting Comments, and Final Terms and Conditions, Recommendations, and Prescriptions May 26, 2010. Take notice that the following hydroelectric application and applicant-prepared..., 2009. d. Applicant: Gibson Dam Hydroelectric Company, LLC. e. Name of Project: Gibson Dam Hydroelectric...

Frequency Response Analysis of Hydroelectric Power Plants with Influence From a Non-Linearized Frictional Damping and the Turbine Characteristics

Directory of Open Access Journals (Sweden)

H. Brekke

1985-01-01

Full Text Available The main purpose of the dissertation has been to establish a complete stability analysis of a hydroelectric power plant. The most important part in this study has been to establish a theory for the damping of oscillatory flow in tunnels and pipes. The influence of the turbine characteristics is also important and has been included by differentiation of the turbine equation. The partial derivative values can be found by means of the characteristic diagram of the turbine. Special attention is paid to establishing an empirical friction function for tunnels with rough walls. The author has based his theory on experimental tests carried out for damping of sea waves on rough beds, and the friction factor is a function of both frequency, amplitudes, cross section area and roughness of the wall (Jonsson 1978. Further, the damping of oscillations in shafts leading to tunnels taking into account the mean velocity in the tunnel has been established.

75 FR 63450 - Wilkesboro Hydroelectric Company; Notice of Application Ready for Environmental Analysis and...

Science.gov (United States)

2010-10-15

... Hydroelectric Company; Notice of Application Ready for Environmental Analysis and Soliciting Comments... hydroelectric application has been filed with the Commission and is available for public inspection. a. Type of.... Applicant: Wilkesboro Hydroelectric Company. e. Name of Project: W. Kerr Scott Hydropower Project. f...

The impact of a hydroelectric power plant on the sediment load in downstream water bodies, Svartisen, northern Norway.

Science.gov (United States)

Bogen, J; Bønsnes, T E

2001-02-05

When the Svartisen hydroelectric power plant was put into operation, extensive sediment pollution was observed in the downstream fjord area. This paper discusses the impact of the power plant and the contribution from various sources of sediment. Computation of the sediment load was based on samples collected one to four times per day. Grain size distribution analyses of suspended sediments were carried out and used as input in a routing model to study the movement of sediments through the system. Suspended sediment delivered to the fjord before the power station was constructed was measured as 8360 metric tons as an annual mean for a 12-year period. During the years 1995-1996 when the power plant was operating, the total suspended load through the power station was measured as 32609 and 30254 metric tons, respectively. Grain size distribution analyses indicate a major change in the composition of the sediments from 9% clay before the power plant was operative to 50-60% clay afterwards. This change, together with the increase in sediment load, is believed to be one of the main causes of the drastic reduction in secchi depths in the fjord. The effect of the suspended sediment load on the fjord water turbidity was evaluated by co-plotting secchi depth and power station water discharge. Measurements during 1995 and 1996 showed that at the innermost of these locations the water failed to attain the minimum requirement of 2 m secchi depth. In later years secchi depths were above the specified level. In 1997 and 1998 the conditions improved. At the more distal locality, the conditions were acceptable with only a few exceptions. A routing model was applied to data acquired at a location 2 km from the power station in order to calculate the contributions from various sediment sources. This model indicated that the contribution from reservoir bed erosion dominated in 1994 but decreased significantly in 1995. Future operation of the power station will mostly take place with

Hydroelectric resources. Inventory of the hydroelectric resources of the Atlantic Coast

International Nuclear Information System (INIS)

Arrieta, R.M.; Insignares R, G.

1987-01-01

Basically this report gives a clear vision of the possibilities of energy development in the Colombian Atlantic Coast, projects that contemplate a wide range as soon as it refers that is to say to generation ranges, they have been identified at level macro in the Sierra Nevada region and the Peasant with a profitable hydroelectric potential of 631 MW; in the Sinu region, 3 projects were identified with a profitable potential of 1186 MW and in the Magdalena region, was also identified 3 projects whose profitable potential is of 475 MW. At level micro, the carried out studies defined in the same previous regions a series of projects that they necessarily reach the megawatt. The report contains a description of each one of the identified projects and its current situation. It also presents a review of the makers of turbines that exist at the moment in the country

77 FR 7574 - Grand Coulee Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted...

Science.gov (United States)

2012-02-13

... Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments and Motions To Intervene On January 13, 2012, the Grand Coulee Project Hydroelectric... study the feasibility of the P.E. Scooteney Wasteway Hydroelectric Project, to be located on the P.E...

75 FR 352 - Enloe Hydroelectric Project; Notice of Application Ready for Environmental Analysis and...

Science.gov (United States)

2010-01-05

... Hydroelectric Project; Notice of Application Ready for Environmental Analysis and Soliciting Comments... hydroelectric application has been filed with the Commission and is available for public inspection. a. Type of... Utility District No. 1 of Okanogan County. e. Name of Project: Enloe Hydroelectric Project. f. Location...

The Dokka delta - consequences of water power development in the River Dokka; Dokka-deltaet - ferskvannsbiologiske konsekvenser av kraftutbyggingen i Dokka-vassdraget

Energy Technology Data Exchange (ETDEWEB)

Halvorsen, Gunnar; Sloreid, Svein-Erik; Walseng, Bjoern

1997-11-01

The report concerns an investigation done in Norway on environmental consequences of hydroelectric power development in the Dokka river. This development has reduced the water flow through the Dokka delta to about 50% of its natural level. The biological effect of the reduction has been studied in the period from 1987 to 1990, comprising two years before and two years after the reduction. Sedimentation, water chemistry, planktonic and littoral crustaceans and bottom fauna have been studied. 223 refs., 58 figs., 9 tabs.

75 FR 6371 - Jordan Hydroelectric Limited Partnership; Notice of Application Accepted for Filing and...

Science.gov (United States)

2010-02-09

... Hydroelectric Limited Partnership; Notice of Application Accepted for Filing and Soliciting Motions To Intervene and Protests February 2, 2010. Take notice that the following hydroelectric application has been filed... License b. Project No.: P-12740-003 c. Date filed: July 13, 2009 d. Applicant: Jordan Hydroelectric...

76 FR 76153 - Grand Coulee Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted...

Science.gov (United States)

2011-12-06

... Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted for Filing and... Hydroelectric Project (Scooteney Inlet Project or project) to be located on the Potholes East Canal, which is an..., Grand Coulee Project Hydroelectric Authority, P.O. Box 219, Ephrata, WA 98823; phone: (509) 754-2227...

Impacts of the Garafiri hydroelectric dam on the Konkoure estuary

International Nuclear Information System (INIS)

Samoura, K.; Waaub, J.P.

2008-01-01

This article described the environmental impacts caused by the exploitation of one or several dams in tropical coastal basins. In particular, it proposed a methodological approach for analyzing the vulnerability of ecosystems to modifications caused by the exploitation of the Garafiri hydroelectric dam in Guinea. With an installed power capacity of 75 MW, this dam has been operational since 1999 and has supplied electricity to coastal and mid Guinea since 2000. Since then, the ecosystem of the Konkoure River has undergone important changes. This study focused primarily on impacts during the dry season. Data was collected at different hydroelectric stations along the Konkoure Basin to estimate changes in water flow in the estuary. The study showed several changes, including noticeable impacts on the soil salt content. In addition, changes in vegetation were attributed to changes in soil content. The study revealed that rice production has increased 65 per cent since 2000, while salt exploitation has been completely discontinued. It was concluded that the hydraulic management of the dam can have a significant impact on the region's ecosystem which can in turn influence ecological and social economic functions. It was concluded that the vulnerability of the ecosystem can be worsened in the context of climate change. 25 refs., 9 figs

77 FR 7143 - Grand Coulee Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted...

Science.gov (United States)

2012-02-10

... Project Hydroelectric Authority; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments and Motions To Intervene On January 13, 2012, the Grand Coulee Project Hydroelectric... study the feasibility of the P.E. 46A Wasteway Hydroelectric Project, to be located on the P.E. 46A...

Microbial diversity of an anoxic zone of a hydroelectric power station reservoir in Brazilian Amazonia.

Science.gov (United States)

Graças, Diego A; Miranda, Paulo R; Baraúna, Rafael A; McCulloch, John A; Ghilardi, Rubens; Schneider, Maria Paula C; Silva, Artur

2011-11-01

Microbial diversity was evaluated in an anoxic zone of Tucuruí Hydroelectric Power Station reservoir in Brazilian Amazonia using a culture-independent approach by amplifying and sequencing fragments of the 16S rRNA gene using metagenomic DNA as a template. Samples obtained from the photic, aphotic (40 m) and sediment (60 m) layers were used to construct six 16S rDNA libraries containing a total of 1,152 clones. The sediment, aphotic and photic layers presented 64, 33 and 35 unique archaeal operational taxonomic units (OTUs). The estimated richness of these layers was evaluated to be 153, 106 and 79 archaeal OTUs, respectively, using the abundance-based coverage estimator (ACE) and 114, 83 and 77 OTUs using the Chao1 estimator. For bacterial sequences, 114, 69 and 57 OTUs were found in the sediment, aphotic and photic layers, which presented estimated richnesses of 1,414, 522 and 197 OTUs (ACE) and 1,059, 1,014 and 148 OTUs (Chao1), respectively. Phylogenetic analyses of the sequences obtained revealed a high richness of microorganisms which participate in the carbon cycle, namely, methanogenic archaea and methanotrophic proteobacteria. Most sequences obtained belong to non-culturable prokaryotes. The present study offers the first glimpse of the huge microbial diversity of an anoxic area of a man-made lacustrine environment in the tropics.

Examining the cost efficiency of Chinese hydroelectric companies using a finite mixture model

International Nuclear Information System (INIS)

Barros, Carlos Pestana; Chen, Zhongfei; Managi, Shunsuke; Antunes, Olinda Sequeira

2013-01-01

This paper evaluates the operational activities of Chinese hydroelectric power companies over the period 2000–2010 using a finite mixture model that controls for unobserved heterogeneity. In so doing, a stochastic frontier latent class model, which allows for the existence of different technologies, is adopted to estimate cost frontiers. This procedure not only enables us to identify different groups among the hydro-power companies analysed, but also permits the analysis of their cost efficiency. The main result is that three groups are identified in the sample, each equipped with different technologies, suggesting that distinct business strategies need to be adapted to the characteristics of China's hydro-power companies. Some managerial implications are developed. - Highlights: ► This paper evaluates the operational activities of Chinese electricity hydric companies. ► This study uses data from 2000 to 2010 using a finite mixture model. ► The model procedure identifies different groups of Chinese hydric companies analysed. ► Three groups are identified in the sample, each equipped with completely different “technologies”. ► This suggests that distinct business strategies need to be adapted to the characteristics of the hydric companies

Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil.

Science.gov (United States)

Rodrigures, Moreno S; Batista, Elis P; Silva, Alexandre A; Costa, Fábio M; Neto, Verissimo A S; Gil, Luiz Herman S

2017-02-22

Anopheles mosquitoes are the only vectors of human malaria. Anopheles species use standing water as breeding sites. Human activities, like the creation of an artificial lake during the implementation of hydroelectric power plants, lead to changes in environmental characteristics and, therefore, may changes the species richness and composition of Anopheles mosquitoes. The aim of the present study was to verify whether or not there is an association between the artificial flooding resulting from the construction of the Jirau hydroelectric power plant, and the richness and composition of anophelines. Mosquitoes samples were obtained monthly from the Jirau hydroelectric power plant area located at Porto Velho, Rondônia State, using Human Landing Catch (06:00-10:00 PM). Mosquitoes collected were transported to Laboratório de Entomologia Médica FIOCRUZ-RO where they were identified until species using dichotomous key. A total of 6347 anophelines belonging to eight different species were collected. The anophelines species richness was significantly lower during the first flooding stage. Differences in anophelines species composition were found when comparing the first flooding stage with the other stages. Furthermore, the mean number of Anopheles darlingi, the main vector of malaria in the region, increases during the first and the third flooding stages. The continual monitoring of these vectors during the late operational phase may be useful in order to understand how anophelines will behave in this area.

Comparative studies between nuclear power plants and hydroelectric power plants

International Nuclear Information System (INIS)

Menegassi, J.

1984-01-01

This paper shows the quantitative evolution of the power plants in the main countries of the world. The Brazilian situation is analysed, with emphasys in the technical and economical aspects related to power production by hidroelectric or nuclear power plants. The conclusion is that the electricity produced by hidro power plants becomes not economics when is intended to be produced at large distances from the demand centers. (Author) [pt

Pingston hydroelectric project - stage 2 project report : volume 1 of 2

International Nuclear Information System (INIS)

1999-01-01

The British Columbia Environmental Assessment Office has reviewed an application by Canadian Hydro Developers (B.C.) Inc., to develop the Pingston Hydroelectric Project, a run-of-river facility, located 60 km south of Revelstoke, British Columbia. The review includes an evaluation of any social and environmental impacts, including the effects on migratory birds, small mammals, amphibians, fish, wildlife, water quality, noise and visual aspects, that would be associated with the project. One consideration in selecting the project site was its ease of access along existing roadways and close proximity to power lines, another, the absence of any potential effects on fish and fish habitat. The project is also expected to have a negligible effect on water quality- related matters such as sediment transport, nutrient trapping in the headpond, and movement of large organic debris through the system. The project will not impact on archaeological resources, offers a renewable supply of energy and represents an overall positive effect on air quality for British Columbia. BC Hydro has committed to providing electrical interconnection to the main grid. 9 refs., 5 tabs., 14 figs., 9 appendices

Application of total quality tools in the operational process modernization and optimization of large hydroelectric power plants; Aplicacao de ferramentas da qualidade total na modernizacao e otimizacao de processos operacionais de grandes usinas hidreletricas

Energy Technology Data Exchange (ETDEWEB)

Potenza, Luiz Frederico; Kassem, Faisal Ali; Medlo, Gerson Ricardo; Santos, Valdemir Chalito dos [Companhia Paranaense de Energia (COPEL), Capitao Leonidas Marques, PR (Brazil). Superintendencia de Gerencia da Manutencao. Area de Operacao e Manutencao Salto Caxias]. E-mail: potenza@mail.copel.br

1998-07-01

This work highlights a practical example of Total Quality tools application, and as the institutional changes advances, the necessity of being better and more competitive becomes evident. By using Total Quality Control tools in the modernization and optimization of operational processes for large hydroelectric power plants of the COPEL-Brazil this work contributes for the continuous increasing of the customers satisfaction and the profitability of the company.

Mitigation and recovery of methane emissions from tropical hydroelectric dams

Energy Technology Data Exchange (ETDEWEB)

Bambace, L.A.W.; Ramos, F.M.; Lima, I.B.T.; Rosa, R.R. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos (Brazil)

2007-06-15

Tropical hydroelectric reservoirs generally constitute an appreciable source of methane to the atmosphere. This paper proposes simple mitigation and recovery procedures to substantially reduce atmospheric methane emissions from hydroelectric reservoirs. We aim at transforming existing methane stocks of tropical reservoirs into a clean, renewable energy source. The recovered gas methane may be pumped to large consuming centers, stocked locally and burned in gas turbines to generate electricity during high demand periods, or even purified for transport applications. Our simulations show that the use of biogenic methane may increase considerably the energy supply in countries like Brazil. As a result, it would be possible to reduce the need of additional hydroelectric dams, protecting important pristine biomes, and avoiding the resettlement of villages and indigenous reserves. (author)

The long term plan for the integration of nuclear power plants into the Turkish Electrical Power System

International Nuclear Information System (INIS)

Kutukcuoglu, A.

1974-03-01

The report covers in detail the study of the expansion of the Turkish Electric Power System for the period 1980-1987. Load forecast is done by sectors and regions and inter-regions power balances gave the basis for the high voltage network configurations. Expansion alternatives are defined giving priority to hydroelectric projects, to local resources and nuclear power plants concurrently with conventional plants (lignite and oil). Several reactor strategies are analysed with LWR, HWR, FBR and HTGR power plants. Present worth value method is used for comparison of alternatives and sensitivity analysis is done for those ranked in the first places. Load flow, transient stability and frequency deviation studies of the power system are studied carefully by means of A.C. calculator and digital computer codes in order to see the influence of the introduction of large-sized power plants (600-750MW(e)) and their location in the power system. A 600MW(e) nuclear plant in 1983 and a second one of 750MW(e) in 1987 should, it is found, be commissioned into the system. The economic optimization was done with two computer programmes developed by KFA (Juelich): IACO for fuelling nuclear plant and RESTRAPO for power system with high hydroelectric component. The report is bound in three volumes: Volume I: Summary and Conclusions; Volume II: System Planning; Volume III: Electrical Survey

University-Company Cooperation in a Hydroelectric Plant: Cooperation Study in Environmental Management

Directory of Open Access Journals (Sweden)

Fabricio Mussi

2017-05-01

Full Text Available Hydroelectric power plants are considered strategic for the country when considering their relevance and impact on other sectors of the economy. However, the dynamics of the operation of a plant, its support structure and power generation activities can cause impacts on the environment, which must be constantly monitored in order to mitigate any environmental risks. The purpose of this study is to examine the partnership relations between a plant by menas of the creation of a department within the environmental management and universities and research institutes to identify specific partnerships in environmental management and hydroelectric plants. Six projects have been selected for analysis, four of them related to projects with universities and two related to cooperation with research institutes. The focus of the analysis was restricted to the main points observed in the management of these partnerships, which are: (a motivation for establishing partnerships, (b the composition of the estimated costs for implementing these partnerships, (c the difficulties of reconciling technical management and financial management, and (d the measurement of results and contributions from these interactions. Administrative practices of management of partnerships were also analyzed in the stages preceding cooperation for cooperation and further cooperation. Although other such studies are needed to strengthen the findings presented, one can conclude that the purposes of the establishment of cooperation in environmental management differ from those observed in other fields of knowledge such as engineering and biotechnology, for example.

76 FR 75543 - Castle Creek Hydroelectric Project; Notice of Preliminary Permit Application Accepted for Filing...

Science.gov (United States)

2011-12-02

... Hydroelectric Project; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments... (FPA), proposing to study the feasibility of the Castle Creek Hydroelectric Project to be located on... be located adjacent to the original hydroelectric plant, with a single shaft Pelton turbine...

Power distribution in complex environmental negotiations: Does balance matter?

Science.gov (United States)

Burkardt, N.; Lamb, B.L.; Taylor, J.G.

1997-01-01

We studied six interagency negotiations covering Federal Energy Regulatory Commission (FERC) hydroelectric power licenses. Negotiations occurred between state and federal resource agencies and developers over project operations and natural resource mitigation. We postulated that a balance of power among parties was necessary for successful negotiations. We found a complex relationship between balanced power and success and conclude that a balance of power was associated with success in these negotiations. Power played a dynamic role in the bargaining and illuminates important considerations for regulatory design.

The impacts of wind power integration on sub-daily variation in river flows downstream of hydroelectric dams.

Science.gov (United States)

Kern, Jordan D; Patino-Echeverri, Dalia; Characklis, Gregory W

2014-08-19

Due to their operational flexibility, hydroelectric dams are ideal candidates to compensate for the intermittency and unpredictability of wind energy production. However, more coordinated use of wind and hydropower resources may exacerbate the impacts dams have on downstream environmental flows, that is, the timing and magnitude of water flows needed to sustain river ecosystems. In this paper, we examine the effects of increased (i.e., 5%, 15%, and 25%) wind market penetration on prices for electricity and reserves, and assess the potential for altered price dynamics to disrupt reservoir release schedules at a hydroelectric dam and cause more variable and unpredictable hourly flow patterns (measured in terms of the Richards-Baker Flashiness (RBF) index). Results show that the greatest potential for wind energy to impact downstream flows occurs at high (∼25%) wind market penetration, when the dam sells more reserves in order to exploit spikes in real-time electricity prices caused by negative wind forecast errors. Nonetheless, compared to the initial impacts of dam construction (and the dam's subsequent operation as a peaking resource under baseline conditions) the marginal effects of any increased wind market penetration on downstream flows are found to be relatively minor.

Study on the technical and economical viability in the using of the spilled turbinable energy from the Itaipu Hydroelectric Power Plant for the ammonia synthesis of the nitrogen fertilizers; Estudo da viabilidade tecnica e economica do aproveitamento da energia vertida turbinavel da usina hidreletrica de Itaipu para sintese de amonia para fertilizantes nitrogenados

Energy Technology Data Exchange (ETDEWEB)

Espinola, Michel Osvaldo Galeano [Universidade Nacional de Assuncao (Paraguay). Faculdade de Ciencias Quimicas]. E-mail: michelosvaldo@qui.una.py

2008-07-01

In many hydroelectric power plants, when the inflows are greater than the demand for energy, a portion of the water that could be used to generate energy is diverted to the spillway and literally wasted. This energy, designated as 'Spilled Turbinable Energy', could be used advantageously to generate other products or an energy vector that could be stored for later use, since in these occasions the dam is full. The present work studies the feasibility of using the spilled turbinable energy of the Itaipu Hydroelectric Power Plant to produce electrolytic hydrogen that, together with the nitrogen from air, is an important feedstock for the ammonia synthesis, used to produce nitrogen fertilizers. The minimum production cost of electrolytic hydrogen was estimated in US$ 0,246/m3 or US$ 2,750/kg, for a plant with capacity of 55 mil m3/h, which correspond to 247,5 MW of electrical power deriving from 82% of spilled turbinable energy and 18% of guaranteed energy. Next to that hydrogen plant it is possible to install an ammonia plant of approximately 500 t/day, operating 350 days/year, with a production cost of approximately US$ 562,81/t. This capacity is enough to supply 38,5% of the ammonia demand estimated for the region focused in the project, 1.300 t/day. Nowadays, ammonia is commercialized in the Brazilian market by approximately US$ 525,60/t. For that reason, it can be concluded that ammonia production through the association of spilled turbinable and guaranteed energy next to Itaipu Hydroelectric Power Plant is not economically feasible by the moment, mainly due to the high cost of imported electrolysers. Nevertheless, with the installation of an ammonia plant based on water electrolysis next to Itaipu Hydroelectric Power Plant, it could be avoided an annual carbon emission of 234 thousand tons, even considering methane and carbon dioxide emissions of the Itaipu's reservoir. If such project were approved by the Clean Development Mechanism, that

75 FR 19989 - Final Environmental Impact Statement for Drought Management Planning at the Kerr Hydroelectric...

Science.gov (United States)

2010-04-16

... Drought Management Planning at the Kerr Hydroelectric Project, Flathead Lake, MT AGENCY: Bureau of Indian... Impact Statement (FEIS) for Drought Management Planning at the Kerr Hydroelectric Project, Flathead Lake... drought management planning at the Kerr Hydroelectric Project no sooner than 30 days following the...

78 FR 35630 - Martin Dam Hydroelectric Project; Notice of Availability of the Draft Environmental Impact...

Science.gov (United States)

2013-06-13

... Hydroelectric Project; Notice of Availability of the Draft Environmental Impact Statement for the Martin Dam Hydroelectric Project and Intention To Hold Public Meetings In accordance with the National Environmental Policy... the Martin Dam Hydroelectric Project (FERC No. 349), located on the Tallapoosa River in Tallapoosa...

76 FR 57729 - Boundary Hydroelectric Project; Sullivan Creek Project; Notice of Availability of the Final...

Science.gov (United States)

2011-09-16

...-015] Boundary Hydroelectric Project; Sullivan Creek Project; Notice of Availability of the Final Environmental Impact Statement for the Relicensing of the Boundary Hydroelectric Project and the Surrender of... reviewed the applications for license for the Boundary Hydroelectric Project (FERC No. 2144-38), and the...

Natural infection by Paramphistomoidea Stiles and Goldberger, 1910 trematodes in wild Marsh Deer (Blastocerus dichotomus Illiger, 1815) from Sérgio Mottas's hydroelectric power station flooding area.

Science.gov (United States)

do Nascimento, Cristiano G; do Nascimento, Adjair A; Mapeli, Elaine B; Tebaldi, José H; Duarte, José M B; Hoppe, Estevam G Lux

2006-01-01

Studies on helminthfauna of marsh deer Blastocerus dichotomus Illiger, 1815 are rare, although helminthic diseases are an important cause of mortality in these animals. Fifteen male and female adult marsh deer from Sergio Motta's hydroelectric power station flooding area at Paraná River which died during the capture and quarantine procedures, between 1998 and 1999, were necropsied. Three trematodes species, Paramphistomum cervi, Balanorchis anastrofus and Zygocotyle lunatum, all belonging to superfamily Paramphistomoidea, were identified. The obtained trematodes were identified, counted and their respectives descriptors of infection were determined. All necropsied animals were infected by helminths. Paramphistomum cervi was the most prevalent species, while Zygocotyle lunatum was found in only one animal.

Atmospheric emissions : hydro-electricity versus other options

International Nuclear Information System (INIS)

Chamberland, A.; Belanger, C.; Gagnon, L.

1996-01-01

One of the great environmental advantage offered by hydro-electricity in northern or temperate climates includes reduced atmospheric emissions. While natural gas plants, from an environmental viewpoint, are thought to be the best fossil fuel option, they emit 18 times more greenhouse gases, at least 60 times more sulfur dioxide and hundreds of times more nitrogen oxides than do hydro-electric systems. The relative SO 2 and greenhouse gas emissions from energy systems in Canada were outlined, and their environmental impacts were described. At the same time, mention was made of other environmental pollutants, such as acid rain, photochemical smog, and particulates that continue to have major impacts on the environment, but were displaced as the focus of attention by greenhouse gases. A study was conducted to determine the effects of extreme biomass decomposition and greenhouse gas emissions from reservoirs. The study showed that at depths of more than 10 centimeters below water surface, organic matter does not contribute to greenhouse gas production, even at 20 degrees C. It was demonstrated that even when maximum biomass decomposition is assumed, a modern natural gas plant would emit 14 times more green house gases than a hydroelectric plant of comparable capacity. 13 refs., 4 tabs., 3 figs

From the world and asian energy demand and environmental requirement to foresee the prospect of Guangdong nuclear power development

International Nuclear Information System (INIS)

Qiu Wenfeng

1999-01-01

The world economy development depends on the development of energy resource. The general energy resource which is mainly fossil fuel will bring damage to the global environment. To stop the global environment becoming worse, cleaner energy will be used in the twenty-first century. The situation which the Guangdong economic growth rate is higher than that of inland average will not change in short period. Economic development requires the suitable electric power supply. The foreground of Guangdong electric power development will be hopeful. To develop electric power is to develop coal, oil, gas, nuclear, hydroelectric and the other renewable power. As to Guangdong, because the environmental pollution is quite serious, it is impossible to develop much more coal-fired power plants. Our country is oil net importer, oil-fired power plants are also restricted. It is acceptable to import natural gas in appropriate degree to generate electricity in the near future to improve environment. To develop hydraulic power is more and more difficult in Guangdong. The hydraulic power from the southwest of China is only as the complement of the Guangdong energy resource, and it is impossible to primarily solve the energy shortage problem. Sunlight, wind, ocean power and terrestrial heat etc. are clean renewable energy, but they can't be used as the wholesale stable industry power. So to develop nuclear power is the certain selection to solve the energy shortage problem and reduce the environmental pollution in Guangdong. (author)

78 FR 48670 - Rivermill Hydroelectric, Inc., New Hampshire Hydro Associates; Notice of Transfer of Exemption

Science.gov (United States)

2013-08-09

... Hydroelectric, Inc., New Hampshire Hydro Associates; Notice of Transfer of Exemption August 5, 2013. 1. By letter filed July 19, 2013, Rivermill Hydroelectric, Inc. and New Hampshire Hydro Associates informed the... Project, FERC No. 9403. All correspondence should be forwarded to Rivermill Hydroelectric, Inc., c/o Essex...

Hydroelectric plant turbine, stream and spillway flow measurement

Energy Technology Data Exchange (ETDEWEB)

Lampa, J.; Lemon, D.; Buermans, J. [ASL AQ Flow Inc., Sidney, BC (Canada)

2004-07-01

This presentation provided schematics of the turbine flow measurements and typical bulb installations at the Kootenay Canal and Wells hydroelectric power facilities in British Columbia. A typical arrangement for measuring stream flow using acoustic scintillation was also illustrated. Acoustic scintillation is portable, non-intrusive, suitable for short intakes, requires minimal maintenance and is cost effective and accurate. A comparison between current meters and acoustic scintillation was also presented. Stream flow measurement is valuable in evaluating downstream areas that are environmentally important for fish habitat. Stream flow measurement makes it possible to define circulation. The effects of any changes can be assessed by combining field measurements and numerical modelling. The presentation also demonstrated that computational fluid dynamics modelling appears promising in determining stream flow and turbulent flow at spillways. tabs., figs.

Hydroelectric Generating Facilities General Permit ...

Science.gov (United States)

2017-08-28

The Notice of Availability of the Final NPDES General Permits (HYDROGP) for Discharges at Hydroelectric Generating Facilities in Massachusetts (MAG360000) and New Hampshire (NHG360000) and Tribal Lands in the State of Massachusetts was published in the Federal Register on December 7, 2009 (see 74 Fed. Reg. No. 233, pages 64074 - 64075).

Brighter for small power plants

International Nuclear Information System (INIS)

Haaland, Leif

2003-01-01

The article presents a small tunnel drilling machine aimed at using for the construction of small hydroelectric power plants and mentions briefly some advantages economically and environmentally of both the machine and the power production solution

Simulation of the transient processes of load rejection under different accident conditions in a hydroelectric generating set

Science.gov (United States)

Guo, W. C.; Yang, J. D.; Chen, J. P.; Peng, Z. Y.; Zhang, Y.; Chen, C. C.

2016-11-01

Load rejection test is one of the essential tests that carried out before the hydroelectric generating set is put into operation formally. The test aims at inspecting the rationality of the design of the water diversion and power generation system of hydropower station, reliability of the equipment of generating set and the dynamic characteristics of hydroturbine governing system. Proceeding from different accident conditions of hydroelectric generating set, this paper presents the transient processes of load rejection corresponding to different accident conditions, and elaborates the characteristics of different types of load rejection. Then the numerical simulation method of different types of load rejection is established. An engineering project is calculated to verify the validity of the method. Finally, based on the numerical simulation results, the relationship among the different types of load rejection and their functions on the design of hydropower station and the operation of load rejection test are pointed out. The results indicate that: The load rejection caused by the accident within the hydroelectric generating set is realized by emergency distributing valve, and it is the basis of the optimization for the closing law of guide vane and the calculation of regulation and guarantee. The load rejection caused by the accident outside the hydroelectric generating set is realized by the governor. It is the most efficient measure to inspect the dynamic characteristics of hydro-turbine governing system, and its closure rate of guide vane set in the governor depends on the optimization result in the former type load rejection.

Nuclear power: the achievements, the problems and the myths. [United Kingdom

Energy Technology Data Exchange (ETDEWEB)

Hill, J [UKAEA

1976-02-01

The total energy requirements of the UK and problems associated with various energy sources including wind, tide, solar, geothermal, hydroelectric, and fossil fuels are reveiwed and their future contribution considered. Nuclear power is discussed with emphasis on costs, technical problems, and future developments.

The hydroelectric power plant as a project of private investment; La central hidroelectrica como proyecto de inversion privada

Energy Technology Data Exchange (ETDEWEB)

Guerra, Eduardo [Industrias Metalurgicas Pescarmona S.A. (IMPSA), Mendoza (Argentina)]. E-mail: guerra@impsa.com.ar

2001-07-01

The paper describes the process to be followed for the performance, construction and operation of a hydroelectric investment from the view point of a private investor. The paper demonstrates that it is possible to finance the project through the 'project finance', where the finance has as guarantee the own assets and the fund fluxes of the investment.

Role of nuclear power in Romania's sustainable development

International Nuclear Information System (INIS)

Popescu, Anca; Lavrov, George; Costea, Diana; Vasile, Camelia

2002-01-01

The role of nuclear power in Romania can be assessed by taking into account the present situation of Romania electro-power systems, the socio-economic and technological evolution, of Romania as well as world wide evolution of the unique power market according the 'Green Card - Towards an European strategy for power securement' endorsed by the European Commission in November 2000. The Romanian electro-power systems is currently undergoing a restructuring process aiming at efficiency improvement, cost reduction, private investment encouraging, efficient use of available national resources. The energy demand in Romania decreased in the period 1989-2000 by an annual rate of 3.8% due to the new trends in the Romanian economy. A thorough analysis for the 2002-2020 showed the necessity for installing a capacity of about 9,000 MW what implies: - achievement of about 1935 MW in hydroelectric plants and 2,100 MW from the Cernavoda NPP; - construction of new condensation groups operating with domestic lignite and pitcoal from import; - new groups with combined cycle based on natural gas; - new nuclear units with 700 MW CANDU type reactors. Achievement of the nuclear program will reduce the Romania's dependences on fossil fuel import enhance will secure the fulfilment of the provisions of European Union's Green Card. It will require important investments what will entailed a rice in cost of the electric energy for end consumers. Although a moderate nuclear power realization is a viable solution for Romania ensuring both the levelling of prices and taxes for fuel and energy to those of European countries and the fulfilment of the Kyoto protocol requirements. Decision for the proper sizing of nuclear program will be made according to many factors implied in the Romanian electro-power system development, as well as by using the experience acquired from the Cernavoda NPP Unit 1 operation

Economic valuation of the downstream hydrological effects of land use change: Large hydroelectric reservoirs

Science.gov (United States)

Aylward, Bruce Allan

1998-12-01

Land use change that accompanies economic development and population growth is intended to raise the economic productivity of land. An inevitable by product of this process is the alteration of natural vegetation and downstream hydrological function. This dissertation explores hydrological externalities of land use change in detail, particularly with regard to their economic impact on large hydroelectric reservoirs (LHRs). A review of the linkages between land use, hydrological function and downstream economic activity suggests that on theoretical grounds the net welfare effect of land use change on hydrological function will be indeterminate. Review of the literature suggests that, though the effects of downstream sedimentation will typically be negative, they may often be of little practical significance. The literature on water quantity impacts is sparse at best. This is most surprising in the case of the literature on LHRs where the potentially important and positive effects of increased water yield are typically ignored in favor of simplistic efforts to document the negative effects of reservoir sedimentation. In order to improve the methodological basis for the economic valuation of hydrological externalities, the dissertation considers existing techniques for the evaluation of non-marketed goods and services, clarifying the manner in which they have been and, in the future, may be applied to the topic at hand. A deterministic simulation model is then constructed for the case of LHRs. The model incorporates the effect of changes in water yield, the seasonal pattern of water yield and sedimentation of live and dead storage volumes as they affect reservoir operation and the production of hydroelectricity. The welfare effects of changes in the productivity of the LHR in the short run and changes to the power system expansion plan in the long run are evaluated using the marginal opportunity costs of alternative power sources and power plants, respectively. A case

Climate change and hydroelectric production

International Nuclear Information System (INIS)

Raban, R.R.

1991-01-01

Manitoba Hydro is planning for the possibility of climate change, which has the potential to adversely effect its hydroelectric generating potential. Theoretical and physical evidence for a global warming are reviewed, and it is shown that some of Manitoba Hydro's own measurements support a warming hypothesis. The most significant effect on the hydraulic generating system would be associated with diminished river flows. Winter hydraulic generation capability would be reduced if the magnitude of the change were sufficient to cause several freeze-ups and break-ups within a given season. Incidence of transmission line icing would probably increase, permafrost recession may undermine tower foundations, and conductor resistance may increase to increase energy loss. Ice crossings and winter roads would be adversely affected, and a restriction on fossil fuel consumption could limit thermal generation and increase demand for hydroelectric or nuclear energy. Manitoba Hydro is examining a number of no-cost or low-cost options to accomodate potential climate change, using probable maximum precipitation hydrologic technology, research into conductor galloping, line icing detection, and hydrological investigations

Energy operation optimization of Rio Paranapanema power plants; Otimizacao da operacao energetica das usinas do Rio Paranapanema

Energy Technology Data Exchange (ETDEWEB)

Soares Filho, Secundino; Cicogna, Marcelo Augusto [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Eletrica e Computacao; Carneiro, Adriano Alber de Franca Mendes; Silva Filho, Donato da [Sao Paulo Univ., Sao Carlos, SP (Brazil). Escola de Engenharia; Lopes, Joao Eduardo Goncalves [Sao Paulo Univ., SP (Brazil). Escola Politecnica; Born, Paulo Henrique S.; Chaves, Jose Roberto de A.; Laudanna, Paulo Ricardo [Duke Energy International Geracao Paranapanema, PR (Brazil)

2000-07-01

This work presents the developed nonlinear optimization model and verify the results for the hydroelectric power plants cascade on the Paranapanema river. The power plants optimized operation is checked out under the average hydrological conditions and the represented by the known flow history ones.

Wind power projects in the CDM: Methodologies and tools for baselines, carbon financing and substainability analysis[CDM=Clean Development Mechanism

Energy Technology Data Exchange (ETDEWEB)

Ringius, L.; Grohnheit, P.E.; Nielsen, L.H.; Olivier, A.L.; Painuly, J.; Villavicencio, A.

2002-12-01

The report is intended to be a guidance document for project developers, investors, lenders, and CDM host countries involved in wind power projects in the CDM. The report explores in particular those issues that are important in CDM project assessment and development - that is, baseline development, carbon financing, and environmental sustainability. It does not deal in detail with those issues that are routinely covered in a standard wind power project assessment. The report tests, compares, and recommends methodologies for and approaches to baseline development. To present the application and implications of the various methodologies and approaches in a concrete context, Africa's largest wind farm-namely the 60 MW wind farm located in Zafarana, Egypt- is examined as a hypothetical CDM wind power project The report shows that for the present case example there is a difference of about 25% between the lowest (0.5496 tCO2/MWh) and the highest emission rate (0.6868 tCO{sub 2}/MWh) estimated in accordance with these three standardized approaches to baseline development according to the Marrakesh Accord. This difference in emission factors comes about partly as a result of including hydroelectric power in the baseline scenario. Hydroelectric resources constitute around 21% of the generation capacity in Egypt, and, if excluding hydropower, the difference between the lowest and the highest baseline is reduced to 18%. Furthermore, since the two variations of the 'historical' baseline option examined result in the highest and the lowest baselines, by disregarding this baseline option altogether the difference between the lowest and the highest is reduced to 16%. The ES3-model, which the Systems Analysis Department at Risoe National Laboratory has developed, makes it possible for this report to explore the project-specific approach to baseline development in some detail. Based on quite disaggregated data on the Egyptian electricity system, including the wind

Expanding the functional significance of automated control systems for the production process at hydroelectric plants

International Nuclear Information System (INIS)

Vasil'ev, Yu.S.; Kononova, M.Yu.

1993-01-01

Automated control systems for the production process (ACS PP) have been successfully implemented in a number of hydroelectric plants in the Russian Federation. The circle of problems that can be solved using ACS PP can be conditionally divided into two classes: on-line/technological control, and production-technological control. This article describes successes and future directions for the solution of these two classes of problems. From the discussion, it is concluded (1) that the data base for existing ACS PP at hydroelectric plants can be successfully employed as points for monitoring the conservation of an environment of local significance; (2) that is is expedient to discuss the problem with organizations, including local control groups interested in the development of territorial-basin systems for ecological monitoring; and (3) that the initiative in creating local territorial-basin support points for monitoring should emanate from guidelines for hydroelectric plants with ACS PP. 3 refs., 2 figs

The effects of run-of-river hydroelectric power schemes on invertebrate community composition in temperate streams and rivers.

Science.gov (United States)

Bilotta, Gary S; Burnside, Niall G; Turley, Matthew D; Gray, Jeremy C; Orr, Harriet G

2017-01-01

Run-of-river (ROR) hydroelectric power (HEP) schemes are often presumed to be less ecologically damaging than large-scale storage HEP schemes. However, there is currently limited scientific evidence on their ecological impact. The aim of this article is to investigate the effects of ROR HEP schemes on communities of invertebrates in temperate streams and rivers, using a multi-site Before-After, Control-Impact (BACI) study design. The study makes use of routine environmental surveillance data collected as part of long-term national and international monitoring programmes at 22 systematically-selected ROR HEP schemes and 22 systematically-selected paired control sites. Five widely-used family-level invertebrate metrics (richness, evenness, LIFE, E-PSI, WHPT) were analysed using a linear mixed effects model. The analyses showed that there was a statistically significant effect (p<0.05) of ROR HEP construction and operation on the evenness of the invertebrate community. However, no statistically significant effects were detected on the four other metrics of community composition. The implications of these findings are discussed in this article and recommendations are made for best-practice study design for future invertebrate community impact studies.

Micro and mini hydroelectric power assessment in Uruguay

International Nuclear Information System (INIS)

Nunes, V.; Genta, J.L.

1996-01-01

The School of Engineering in Montevideo, Uruguay, within the framework of Agreements made with the National Utility, has carried out an assessment of the potential and studies of the feasibility of the use of renewable energy for the generation of electrical power, both at the industrial level and the autonomous level for rural electrification. Original assessment methodologies were developed, including calculation tools which allow, for example, to analyze historical meteorological data, to calculate the available energy in different kinds of energy generators and also to stimulate the operation and design of autonomous systems with established load requirements and service quality. At the micro and mini hydropower assessment, the main role was placed on the census of potential users and the preliminary analysis of the representative places for the different technical solutions adequate to the variety of topographic conditions and load requirements. For power above 1 MW and up to 5 MW, the generating potential was assessed all over the country. If power lower than 1 MW or lower than 100kW (mini and micro) is considered, the information available in maps with contour lines, including in those of a 1:50,000 scale, is not enough to identify the most adequate places. Instead, knowledge of the place is indispensable in these cases. A preliminary plan of several installations was worked out. (Author)

Climate change impacts on high-elevation hydroelectricity in California

Science.gov (United States)

Madani, Kaveh; Guégan, Marion; Uvo, Cintia B.

2014-03-01

While only about 30% of California's usable water storage capacity lies at higher elevations, high-elevation (above 300 m) hydropower units generate, on average, 74% of California's in-state hydroelectricity. In general, high-elevation plants have small man-made reservoirs and rely mainly on snowpack. Their low built-in storage capacity is a concern with regard to climate warming. Snowmelt is expected to shift to earlier in the year, and the system may not be able to store sufficient water for release in high-demand periods. Previous studies have explored the climate warming effects on California's high-elevation hydropower by focusing on the supply side (exploring the effects of hydrological changes on generation and revenues) ignoring the warming effects on hydroelectricity demand and pricing. This study extends the previous work by simultaneous consideration of climate change effects on high-elevation hydropower supply and pricing in California. The California's Energy-Based Hydropower Optimization Model (EBHOM 2.0) is applied to evaluate the adaptability of California's high-elevation hydropower system to climate warming, considering the warming effects on hydroelectricity supply and pricing. The model's results relative to energy generation, energy spills, reservoir energy storage, and average shadow prices of energy generation and storage capacity expansion are examined and discussed. These results are compared with previous studies to emphasize the need to consider climate change effects on hydroelectricity demand and pricing when exploring the effects of climate change on hydropower operations.

Advanced methods on the evaluation of design earthquake motions for important power constructions

International Nuclear Information System (INIS)

Higashi, Sadanori; Shiba, Yoshiaki; Sato, Hiroaki; Sato, Yusuke; Nakajima, Masato; Sakai, Michiya; Sato, Kiyotaka

2009-01-01

In this report, we compiled advanced methods on the evaluation of design earthquake motions for important power constructions such as nuclear power, thermal power, and hydroelectric power facilities. For the nuclear and hydroelectric power facilities, we developed an inversion method of broad-band (0.1-5Hz) source process and obtained valid results from applying the method to the 2007 Niigata-ken Chuetsu-oki earthquake (M6.8). We have also improved our modeling techniques of thick sedimentary layered structure such as the S-wave velocity modeling by using microtremor array measurement and the frequency dependent damping factor with a lower limit. For seismic isolation design for nuclear power facilities, we proposed a design pseudo-velocity response spectrum. For the thermal power facilities, we performed three-dimensional numerical simulation of Kanto Basin for a prediction relation of long-period ground motion. We also proposed the introduction of probabilistic approach into the deterministic evaluation flow of design earthquake motions and evaluated the effect of a great earthquake with a short return period on the seismic hazard in Miyagi Prefecture, Japan. (author)

Project finance of hydroelectric power plants in Brazil; 'Project finance' de usinas hidroeletricas no Brasil

Energy Technology Data Exchange (ETDEWEB)

Ribeiro Filho, Valfredo de Assis; Ramos, Maria Olivia de Souza [Universidade Salvador (UNIFACS), BA (Brazil)

2008-07-01

The aim of this paper is to discuss the modality of project finance of financing of enterprises, which is the main modality of structuring of hydroelectric projects in Brazil. In the discussion will be highlighted the importance of contracts EPC (Engineering, Search and Construction) in the structuring of project finances. This financing model has particular characteristics related to risk sharing and financial flexibility that enable the financing of projects with long-term capital, however, due to participation of various actors and the nature of the structure of project finance, the negotiation and drafting of contracts are always very complex.

78 FR 5798 - Ceresco Hydroelectric Dam, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

Science.gov (United States)

2013-01-28

... Hydroelectric Dam, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On October 19, 2012, Ceresco Hydroelectric Dam, LLC...), proposing to study the feasibility of the Ceresco Hydroelectric Project (Ceresco Project or project) to be...

76 FR 49462 - Newfound Hydroelectric Company, KTZ Hydro, LLC; Notice of Application for Transfer of License...

Science.gov (United States)

2011-08-10

... Hydroelectric Company, KTZ Hydro, LLC; Notice of Application for Transfer of License, and Soliciting Comments and Motions To Intervene On July 25, 2011, Newfound Hydroelectric Company (transferor) and KTZ Hydro, LLC (transferee) filed an application for transfer of license for the Newfound Hydroelectric Project...

78 FR 39725 - Grenada Lake Hydroelectric Project; Notice Of Proposed Restricted Service List for a Programmatic...

Science.gov (United States)

2013-07-02

...-001--Mississippi] Grenada Lake Hydroelectric Project; Notice Of Proposed Restricted Service List for a... license for the proposed Grenada Lake Hydroelectric Project No. 13702. The Programmatic Agreement, when... Grenada Lake Hydroelectric Project, the U.S. Army Corps of Engineers, the Choctaw Nation of Oklahoma, the...

Renewable energy finance and project ownership. The impact of alternative development structures on the cost of wind power

International Nuclear Information System (INIS)

Wiser, R.H.

1997-01-01

This paper uses traditional financial cash flow techniques to examine the impact of different ownership and financing structures on the cost of renewable energy, specifically wind power. Most large, non-hydroelectric, renewable energy projects are developed, owned and financed by private non-utility generators. Recently, however, US utilities have begun to consider owning and financing their own wind power facilities rather than purchasing power from independent renewable energy suppliers. Utilities in other countries have also expressed interest in direct renewable energy investments. A primary justification for utility ownership of wind turbine power plants is that utility self-financing and ownership is cheaper than purchasing wind energy from non-utility renewable energy suppliers. The results presented in this paper support that justification, although some of the estimated cost savings associated with utility ownership are a result of suboptimal utility analysis procedures and implicit risk shifting. Financing terms and variables are shown to significantly impact wind power costs. (author)

Analysis of Environmental Issues Related to Small-Scale Hydroelectric Development V: Instream Flow Needs for Fishery Resources

Energy Technology Data Exchange (ETDEWEB)

Loar, James M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Sale, Michael J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

1981-10-01

The purpose of this document is to provide guidance to developers of small-scale hydroelectric projects on the assessment of instream flow needs. While numerous methods have been developed to assess the effects of stream flow regulation on aquatic biota in coldwater streams in the West, no consensus has been reached regarding their general applicability, especially to streams in the eastern United States. This report presents and reviews these methods (Section 2.0), which is intended to provide the reader with general background information that is the basis for the critical evaluation of the methods (Section 3.0). The strategy for instream flow assessment presented in Section 4.0 is, in turn, based on the implicit assumptions, data needs, costs, and decision-making capabilities of the various methods as discussed in Section 3.0.

Methane and CO2 emissions from China's hydroelectric reservoirs: a new quantitative synthesis.

Science.gov (United States)

Li, Siyue; Zhang, Quanfa; Bush, Richard T; Sullivan, Leigh A

2015-04-01

Controversy surrounds the green credentials of hydroelectricity because of the potentially large emission of greenhouse gases (GHG) from associated reservoirs. However, limited and patchy data particularly for China is constraining the current global assessment of GHG releases from hydroelectric reservoirs. This study provides the first evaluation of the CO2 and CH4 emissions from China's hydroelectric reservoirs by considering the reservoir water surface and drawdown areas, and downstream sources (including spillways and turbines, as well as river downstream). The total emission of 29.6 Tg CO2/year and 0.47 Tg CH4/year from hydroelectric reservoirs in China, expressed as CO2 equivalents (eq), corresponds to 45.6 Tg CO2eq/year, which is 2-fold higher than the current GHG emission (ca. 23 Tg CO2eq/year) from global temperate hydropower reservoirs. China's average emission of 70 g CO2eq/kWh from hydropower amounts to 7% of the emissions from coal-fired plant alternatives. China's hydroelectric reservoirs thus currently mitigate GHG emission when compared to the main alternative source of electricity with potentially far great reductions in GHG emissions and benefits possible through relatively minor changes to reservoir management and design. On average, the sum of drawdown and downstream emission including river reaches below dams and turbines, which is overlooked by most studies, represents the equivalent of 42% of the CO2 and 92% of CH4 that emit from hydroelectric reservoirs in China. Main drivers on GHG emission rates are summarized and highlight that water depth and stratification control CH4 flux, and CO2 flux shows significant negative relationships with pH, DO, and Chl-a. Based on our finding, a substantial revision of the global carbon emissions from hydroelectric reservoirs is warranted.

75 FR 77862 - FFP Missouri 16, LLC, Solia 9 Hydroelectric, LLC; Notice of Competing Preliminary Permit...

Science.gov (United States)

2010-12-14

... Missouri 16, LLC, Solia 9 Hydroelectric, LLC; Notice of Competing Preliminary Permit Applications Accepted.... On August 6, 2010, FFP Missouri 16, LLC (FFP) and Solia 9 Hydroelectric, LLC filed preliminary permit...-2822. Solia 9 Hydroelectric's proposed Lock and Dam 15 Hydropower Project (Project No. 13827-000) would...

75 FR 37790 - Mahoning Creek Hydroelectric Company, LLC; Notice of Intent To Issue a Supplemental Environmental...

Science.gov (United States)

2010-06-30

... Hydroelectric Company, LLC; Notice of Intent To Issue a Supplemental Environmental Assessment for the Proposed Mahoning Creek Hydroelectric Project June 23, 2010. On March 23, 2010, Commission staff issued an Environmental Assessment (EA) for the proposed Mahoning Creek Hydroelectric Project. On April 22, 2010, the U.S...

Benefits and applications of modular hydroelectric pumped storage

International Nuclear Information System (INIS)

Koebbe, R.S.

1991-01-01

This paper reports on hydroelectric pumped storage which is the only proven and most efficient technology available for energy storage. It is used by utilities to provide peak and intermediate power and to optimize overall system performance. Because of increased environmental and regulatory constraints, few acceptable sites, long schedules, and huge financial commitments, large conventional pumped storage plants, are now virtually impossible to build. As an alternative, small modular pumped storage, with project sizes ranging from 25 MW to 200 MW, was created to overcome the difficulties of conventional projects. The modular approach involves standardizing the elements of a pumped storage plant by utilizing specialized siting techniques and optimizing design, equipment, and construction. Compared with conventional pumped storage, the modular design can reduce cost and expedite schedule; reduce environmental concerns and permitting obstacles; and expand applications of energy storage on a utility's system

Overview of electric power industry of main countries in the world

International Nuclear Information System (INIS)

2013-01-01

The electric power supply system, power producer, regulation system, electricity liberalization, power demand and supply, electricity rate, development of electric power sources, nuclear power generation and renewable energy of six countries such as USA, England, German, France, Russia and China are reported. On USA, 3,754 x 10 9 kWh of total electric energy, 104 of nuclear reactors are running and giving careful consideration to safety of the plant. Shale gas production is increasing, and new technology of electric car, smart grid and demand response is developing. On England, 368 x 10 9 kWh of total electric energy, which consisted of 70.4% thermal power, 18.8% nuclear power and 10.8% renewable energy, 18 nuclear reactors are running, but almost nuclear power plants will be closed until 2023. Biomass and wind power have been developed. On German, 609 x 10 9 kWh of total electric energy, 9 nuclear reactors are running but closed till 2022, the renewable energy such as wind power and photovoltaic is introduced. On France, 542 x 10 9 kWh total electric energy, which consisted of 9% hydroelectricity, 9% thermal power, 78% nuclear power and 4% renewable energy. The renewable energy plan is formulated. On Russia, 1,052 x 10 9 kWh total electric energy consisted of 67.8% thermal power, 15.7% hydroelectricity and 16.4% nuclear power, 32 nuclear power plants are running and 9 nuclear reactors building. On China, 4,693 x 10 9 kWh power consumption, 6 nuclear power plants are running to generate 1.85% electric energy, the objects of nuclear power generation and renewable energy were announced. (S.Y.)

Innovation of power management structure in Czechoslovakia and nuclear power

Energy Technology Data Exchange (ETDEWEB)

Cibula, M

1979-01-01

The estimate is briefly indicated of power demand in Czechoslovakia till 1990 with the objective of attaining 142 mil. tonnes of specific fuel in that year. The demand will be met from domestic resources by 49%, exports by 44.2% and nuclear power by 6.8%. A brief comparison is presented of capital and fuel costs of brown coal fired power plants, hydroelectric plants and nuclear power plants in Czechoslovakia in 1990.

Integration of Lithium-Ion Battery Storage Systems in Hydroelectric Plants for Supplying Primary Control Reserve

Directory of Open Access Journals (Sweden)

Fabio Bignucolo

2017-01-01

Full Text Available The ever-growing diffusion of renewables as electrical generation sources is forcing the electrical power system to face new and challenging regulation problems to preserve grid stability. Among these, the primary control reserve is reckoned to be one of the most important issues, since the introduction of generators based on renewable energies and interconnected through static converters, if relieved from the primary reserve contribution, reduces both the system inertia and the available power reserve in case of network events involving frequency perturbations. In this scenario, renewable plants such as hydroelectric run-of-river generators could be required to provide the primary control reserve ancillary service. In this paper, the integration between a multi-unit run-of-river power plant and a lithium-ion based battery storage system is investigated, suitably accounting for the ancillary service characteristics as required by present grid codes. The storage system is studied in terms of maximum economic profitability, taking into account its operating constraints. Dynamic simulations are carried out within the DIgSILENT PowerFactory 2016 software environment in order to analyse the plant response in case of network frequency contingencies, comparing the pure hydroelectric plant with the hybrid one, in which the primary reserve is partially or completely supplied by the storage system. Results confirm that the battery storage system response to frequency perturbations is clearly faster and more accurate during the transient phase compared to a traditional plant, since time delays due to hydraulic and mechanical regulations are overpassed. A case study, based on data from an existing hydropower plant and referring to the Italian context in terms of operational constraints and ancillary service remuneration, is presented.

Modelling CO2 emissions from water surface of a boreal hydroelectric reservoir.

Science.gov (United States)

Wang, Weifeng; Roulet, Nigel T; Kim, Youngil; Strachan, Ian B; Del Giorgio, Paul; Prairie, Yves T; Tremblay, Alain

2018-01-15

To quantify CO 2 emissions from water surface of a reservoir that was shaped by flooding the boreal landscape, we developed a daily time-step reservoir biogeochemistry model. We calibrated the model using the measured concentrations of dissolved organic and inorganic carbon (C) in a young boreal hydroelectric reservoir, Eastmain-1 (EM-1), in northern Quebec, Canada. We validated the model against observed CO 2 fluxes from an eddy covariance tower in the middle of EM-1. The model predicted the variability of CO 2 emissions reasonably well compared to the observations (root mean square error: 0.4-1.3gCm -2 day -1 , revised Willmott index: 0.16-0.55). In particular, we demonstrated that the annual reservoir surface effluxes were initially high, steeply declined in the first three years, and then steadily decreased to ~115gCm -2 yr -1 with increasing reservoir age over the estimated "engineering" reservoir lifetime (i.e., 100years). Sensitivity analyses revealed that increasing air temperature stimulated CO 2 emissions by enhancing CO 2 production in the water column and sediment, and extending the duration of open water period over which emissions occur. Increasing the amount of terrestrial organic C flooded can enhance benthic CO 2 fluxes and CO 2 emissions from the reservoir water surface, but the effects were not significant over the simulation period. The model is useful for the understanding of the mechanism of C dynamics in reservoirs and could be used to assist the hydro-power industry and others interested in the role of boreal hydroelectric reservoirs as sources of greenhouse gas emissions. Copyright © 2017 Elsevier B.V. All rights reserved.

75 FR 22122 - Gibson Dam Hydroelectric Company, LLC; Notice of Application Accepted for Filing and Soliciting...

Science.gov (United States)

2010-04-27

... Hydroelectric Company, LLC; Notice of Application Accepted for Filing and Soliciting Motions To Intervene and Protests April 20, 2010. Take notice that the following hydroelectric application has been filed with the.... Project No.: P-12478-003. c. Date filed: August 28, 2009. d. Applicant: Gibson Dam Hydroelectric Company...

Environmental evaluation of electric power from a systems perspective. Guidance for sustainable development; Miljoevaerdering av el ur systemperspektiv. En vaegledning foer haallbar utveckling

Energy Technology Data Exchange (ETDEWEB)

Gode, Jenny; Byman, Karin; Persson, Agneta; Trygg, Louise

2009-12-15

The electricity market is deregulated. This means that all electricity customers are free to choose their electricity supplier. Many utilities market renewable electricity products such as wind power or hydroelectric power, saying that the customer makes a contribution to the environment by choosing these products. But is that really true? In this report, four researchers and consultants give an account of their views on how environmental valuation of electricity should be made. Specifically they discusses the driving forces for the development of the electricity system and the purchase of environmentally certified electricity and the link to environmental benefits. An important objective is to provide guidance as to how individuals and businesses through their actions can contribute to sustainable development

Balbina's region sustainable development project

International Nuclear Information System (INIS)

Hargreaves, Paul

1994-01-01

This work presents a planning and administration of an environmental project proposal for Balbina's lake hydroelectric power station restoration. The socio-economic objectives are the hydro-forest bio production development which include fishery, specialized tourism, leisure, besides the processing of industrial raw materials

Will initiatives to promote hydroelectricity consumption be effective? Evidence from univariate and panel LM unit root tests with structural breaks

International Nuclear Information System (INIS)

Lean, Hooi Hooi; Smyth, Russell

2014-01-01

This paper examines whether initiatives to promote hydroelectricity consumption are likely to be effective by applying univariate and panel Lagrange Multiplier (LM) unit root tests to hydroelectricity consumption in 55 countries over the period 1965–2011. We find that for the panel, as well as about four-fifths of individual countries, that hydroelectricity consumption is stationary. This result implies that shocks to hydroelectricity consumption in most countries will only result in temporary deviations from the long-run growth path. An important consequence of this finding is that initiatives designed to have permanent positive effects on hydroelectricity consumption, such as large-scale dam construction, are unlikely to be effective in increasing the share of hydroelectricity, relative to consumption of fossil fuels. - Highlights: • Applies unit root tests to hydroelectricity consumption. • Hydroelectricity consumption is stationary. • Shocks to hydroelectricity consumption result in temporary deviations from the long-run growth path

Strategies for growth of hydro electric power

International Nuclear Information System (INIS)

Khera, D.V.

1998-01-01

Hydro power on account of its several inherent advantages has a key role to play in the development of long term energy strategies based on diversified and balance use of natural national resources. Our country is fortunate to be endowed with large hydro-electric potential. It is estimated that the hydro potential while fully developed may yield to an installed capacity of 1,50,000 MW. An attempt has been made in this paper to examine and analyse the status and trend of hydro power development, need for accelerated development of hydro power, myths about hydro electric projects, principal causes responsible for scaling down of hydro share in the total installed capacity and strategies which could restore optimum hydro thermal mix. (author)

Costa Rica: Hydroelectric utility Energía Global finances upstream reforestation

OpenAIRE

Energía Global (Global Energy S.A.); The National Forest Office; National Fund for Forest Financing (FONAFIFO)

2006-01-01

Metadata only record The goal of Energía Global is to increase both the stream flow and decrease sedimentation in the hydroelectric reservoirs. They are attempting to do this by reforestation projects as well as forest conservation. The sources of revenue for this project are from the private hydroelectric company and the government through taxes on fossil fuels. PES-1 (Payments for Environmental Services Associate Award)

[The assessment of the general functional status and of the psychosomatic complaints of workers at hydroelectric power plants].

Science.gov (United States)

Danev, S; Dapov, E; Pavlov, E; Nikolova, R

1992-01-01

Evaluation of the general functional status and psychosomatic complaints of 61 workers from the hydroelectric power stations is made. The following methods are used: 1. Assessment of the general functional state, by means of computer analysis of the cardiac variability, analysing the changes in the values of the following indices: average value of the cardiac intervals (X), their standard deviation (SD), coefficient of variation (CV), amplitude of the mode (AMO), index of stress (IS), index of the vegetative balance (IVB), homeostatic index (HI). The last 3 indices serve for determination of the complex evaluation of chronic fatigue and work adaptation (ChFWA). 2. Evaluation of the psychosomatic complaints, by the use of a questionnaire for the subjective psychosomatic complaints. 3. Studying the systolic and diastolic blood pressure. The average values received in workers from HPS were compared with the average values of the population of the country and with the average values of a similar working activity of a group of operators from the thermal power station HPS. In conclusion it could be noted that concerning ChFWA the received values in workers from HPS are not more unfavourable generalized values from that measured in workers, occupied with similar type of work in other industrial branches of the country. However, they are with more unfavourable data in comparison with the workers from HPS. The subjective evaluation of the operators concerning their psychic and body health status is moderately worse, both in comparison with the values of the index for the country, and in comparison with those of the operators from HPS.

Environmental mitigation at hydroelectric projects. Volume 2, Benefits and costs of fish passage and protection

Energy Technology Data Exchange (ETDEWEB)

Francfort, J.E.; Rinehart, B.N.; Sommers, G.L. [EG and G Idaho, Inc., Idaho Falls, ID (United States); Cada, G.F.; Jones, D.W. [Oak Ridge National Lab., TN (United States); Dauble, D.D. [Pacific Northwest Lab., Richland, WA (United States); Hunt, R.T. [Hunt (Richard) Associates, Inc., Concord, NH (United States); Costello, R.J. [Northwest Water Resources Advisory Services (United States)

1994-01-01

This study examines envirorunental mitigation practices that provide upstream and downstream fish passage and protection at hydroelectric projects. The study includes a survey of fish passage and protection mitigation practices at 1,825 hydroelectric plants regulated by the Federal Energy Regulatory Commission (FERC) to determine frequencies of occurrence, temporal trends, and regional practices based on FERC regions. The study also describes, in general terms, the fish passage/protection mitigation costs at 50 non-Federal hydroelectric projects. Sixteen case studies are used to examine in detail the benefits and costs of fish passage and protection. The 16 case studies include 15 FERC licensed or exempted hydroelectric projects and one Federally-owned and-operated hydroelectric project. The 16 hydroelectric projects are located in 12 states and range in capacity from 400 kilowatts to 840 megawatts. The fish passage and protection mitigation methods at the case studies include fish ladders and lifts, an Eicher screen, spill flows, airburst-cleaned inclined and cylindrical wedgewire screens, vertical barrier screens, and submerged traveling screens. The costs, benefits, monitoring methods, and operating characteristics of these and other mitigation methods used at the 16 case studies are examined.

Modernisation of hydrogenerators. Upgrading of power plants for more efficiency; Modernisierung von Hydrogeneratoren. Kraftwerks-Upgrade fuer mehr Effizienz

Energy Technology Data Exchange (ETDEWEB)

Allen, John

2012-07-01

Ever since the construction of the first alternating current hydroelectric power plant with a performance of 12.5 kW in the year 1882, the number and performance of hydroelectric power plants had increased substantially. For example, the hydroelectric power plant at the Three Gorges Dam in the People's Republic of China has a total performance of 22,500 MW. The isolation systems of the hydrogenerators have a limited lifetime and have to be exchanged after fifty years usually. Under this aspect, the authors of the contribution under consideration reports on the upgrading of hydrogenerators for more efficiency.

Flow-Induced Pulsation and Vibration in Hydroelectric Machinery Engineer’s Guidebook for Planning, Design and Troubleshooting

CERN Document Server

Dörfler, Peter; Coutu, André

2013-01-01

Since the 1970’s, an increasing amount of specialized research has focused on the problems created by instability of internal flow in hydroelectric power plants. However, progress in this field is hampered by the inter­disciplinary nature of the subject, between fluid mechanics, structural mechanics and hydraulic transients. Flow-induced Pulsation and Vibration in Hydroelectric Machinery provides a compact guidebook explaining the many different underlying physical mechanisms and their possible effects.   Typical phenomena are described to assist in the proper diagnosis of problems and various key strategies for solution are compared and considered with support from practical experience and real-life examples. The link between state-of the-art CFD computation and notorious practical problems is discussed  and quantitative data is provided on  normal levels of vibration and pulsation so realistic limits can be set for future projects. Current projects are also addressed as the possibilities and limitatio...

Understanding the costs and schedule of hydroelectric projects

International Nuclear Information System (INIS)

Merrow, E.W.; Schroeder, B.R.

1991-01-01

This paper is based on a study conducted for the World Bank which evaluated the feasibility of developing an empirically based ex ante project analysis system for hydroelectric projects. The system would be used to assess: the reasonableness of engineering-based cost and schedule estimates used for project appraisal and preliminary estimates used to select projects for appraisal; and the potential for cost growth and schedule slip. The system would help identify projects early in the project appraisal process that harbor significantly higher than normal risks of overrunning cost and schedule estimates

Ground failure in direct current systems of the Itaipu Hydroelectric Power Plant, Parana, Brazil. Impact in the operation; Falla a tierra en sistemas de corriente continua en la Central Hidroelectrica Itaipu, PR, Brasil. Impacto en la operacion

Energy Technology Data Exchange (ETDEWEB)

Soto Santacruz, Heriberto [Itaipu Binacional, Foz do Iguacu, PR (Brazil)]. E-mail: soto@itaipu.gov.py

1998-07-01

The objective of this work is to share with other companies the operation experience obtained by researching the direct current systems ground failure, in the Itaipu Hydroelectric Power Plant. During the research process electrical and/or electronic components can be damaged, and also human failures can occurred during the circuit connection and disconnection manoeuvres, necessary for the identification of the components causing the failures.

Fish screens at hydroelectric diversions

International Nuclear Information System (INIS)

Ott, R.F.

1994-01-01

Preventing downstream migrating fish from entering the turbines at hydroelectric projects is a standard mitigation goal of state and federal fishery management agencies. The object is to minimize the adverse impacts to the fish associated with the exclusion and passage through the bypass water conveyance facilities. In the western United States, most of the fishery management agencies have fish screen design criteria that focus on the approach and transportational velocities, maximum opening dimensions of the screen material, and the cleaning standards. Recently, more attention has been given to fish behavioral traits such as attraction and sustained and darting swimming speed, which has resulted in more attention to the position of the screens to the flow and the length of time the downstream migrants are exposed to the screens. Criteria for length of time of exposure, size and position of bypass, flow and velocities in the bypass entrances, discharge requirements back into the receiving water, and exposure to predation have created unique challenges to the fish screen designer. This paper discusses some of the more recent types of fixed fish screens that are being installed at hydroelectric plants that meet these challenges

76 FR 1148 - CRD Hydroelectric LLC, Iowa; Notice of Availability of Environmental Assessment

Science.gov (United States)

2011-01-07

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 12576-004] CRD Hydroelectric LLC, Iowa; Notice of Availability of Environmental Assessment December 23, 2010. In accordance... reviewed the application for an original license for the Red Rock Hydroelectric Project (FERC Project No...

Report on the renewal of the hydro-electric concessions

International Nuclear Information System (INIS)

2006-11-01

The administrative procedures of the renewable of the hydro-electric concessions in France is a real problem, leading to too long time of the case files examination. This mission aimed to identify the technical and financial criteria on which the decision maker will base his choice to give the concessions renewal. This report exposes the evaluation and the recommendations of the mission. The first part establishes an evaluation of the situation of the hydro-electric concessions and the today renewal procedures. The second part presents a analysis of this situation and the recommendations. The last part brings the conclusions. (A.L.B.)

Department of Energy Small-Scale Hydropower Program: Feasibility assessment and technology development summary report

International Nuclear Information System (INIS)

Rinehart, B.N.

1991-06-01

This report summarizes two subprograms under the US Department of Energy's Small-Scale Hydroelectric Power Program. These subprograms were part of the financial assistance activities and included the Program Research and Development Announcement (PRDA) feasibility assessments and the technology development projects. The other major subprograms included engineering research and development, legal and institutional aspects, and technology transfer. These other subprograms are covered in their respective summary reports. The problems of energy availability and increasing costs of energy led to a national effort to develop economical and environmental attractive alternative energy resources. One such alternative involved the utilization of existing dams with hydraulic heads of <65 ft and the capacity to generate hydroelectric power of 15 MW or less. Thus, the PRDA program was initiated along with the Technology Development program. The purpose of the PRDA feasibility studies was to encourage development of renewable hydroelectric resources by providing engineering, economic, environmental, safety, and institutional information. Fifty-five feasibility studies were completed under the PRDA. This report briefly summarizes each of those projects. Many of the PRDA projects went on to become technology development projects. 56 refs., 1 fig., 2 tabs

Department of Energy Small-Scale Hydropower Program: Feasibility assessment and technology development summary report

Energy Technology Data Exchange (ETDEWEB)

Rinehart, B.N.

1991-06-01

This report summarizes two subprograms under the US Department of Energy's Small-Scale Hydroelectric Power Program. These subprograms were part of the financial assistance activities and included the Program Research and Development Announcement (PRDA) feasibility assessments and the technology development projects. The other major subprograms included engineering research and development, legal and institutional aspects, and technology transfer. These other subprograms are covered in their respective summary reports. The problems of energy availability and increasing costs of energy led to a national effort to develop economical and environmental attractive alternative energy resources. One such alternative involved the utilization of existing dams with hydraulic heads of <65 ft and the capacity to generate hydroelectric power of 15 MW or less. Thus, the PRDA program was initiated along with the Technology Development program. The purpose of the PRDA feasibility studies was to encourage development of renewable hydroelectric resources by providing engineering, economic, environmental, safety, and institutional information. Fifty-five feasibility studies were completed under the PRDA. This report briefly summarizes each of those projects. Many of the PRDA projects went on to become technology development projects. 56 refs., 1 fig., 2 tabs.

Report on achievements in fiscal 1998. Development of technologies to put photovoltaic power generation systems into practical use - international joint demonstration and development of photovoltaic power generation systems (Demonstrative research on photovoltaic power and micro hydraulic power hybrid system); 1998 nendo taiyoko hatsuden system jitsuyoka gijutsu kaihatsu seika hokokusho. Taiyoko hatsuden system kokusai kyodo jissho kaihatsu (taiyoko micro suiryoku hybrid system jissho kenkyu)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

A photovoltaic (PV) power plant is compounded with a micro hydroelectric (MH) power plant in Vietnam, who has a dry season and a rainy season, to structure a stabilized power supply system to compensate drawbacks of the respective systems. Full load operation is being performed to advance the development of technologies to optimize and improve the performance and reliability of the system. The works include (1) site surveys, and decision on a location to execute the demonstration research, (2) design of the system, and design and fabrication of devices, and (3) the building construction thereof. In Item (1), the location was decided at Trang Village, Vietnam from such installing conditions as annual average insolation, water channels for wheel turbines, energy complementing relations, load demand amount, and difficulty of installation. In Item (2), the system consists of PV:100 kW/MH:25 kW/control system, wherein the MH is an inductive generator. The Main devices include generators, batteries, inverters, system control panels, and a meteorological data recording device. In Item (3) land survey and development were completed. (NEDO)

Energy and sustainable development in Latin America and the Caribbean: Approaches for the power policy

International Nuclear Information System (INIS)

1997-05-01

Energy and sustainable development in Latin America and the Caribbean is a joint project of the Latin American Organization of Energia (OLADE), the Economic Commission for Latin America and the Caribbean (Cepal) of the United Nations and the Deutsche Gesellschaft fur Technische Zusammennarbeit (GTZ). The intention of this project is the one to fortify the processes of formulation of power policies to harmonize economic growth, social fairness and protection of the environment in order to contribute to that the reforms that come undertaking the countries from the region prohang to the sustainable development. The made work it is come off that the sustainability of the power development raises a series of challenges to future. Concordant with the reactivation of the economic growth in the Nineties a low power productivity is still pronounced. To this they add one reduced to cover of satisfaction of the power necessities and the forest deterioration, jointly with the low quality of the power consumption and the impacts in the level of transmissions that will have the incorporation of polluting sources in the expansion of the regional power systems. On the other hand, the work shows a preoccupation with respect to the sustainability of the expansion of the power systems. At the present time the countries of Latin America and the Caribbean do not have a significant responsibility in the global environmental problems, since single they generate 5% of the world-wide CO2 transmissions whereas the developed countries contribute around 70%. Nevertheless, the new power developments based on the greater hydrocarbon consumption will be able to increase the contribution from the region to the deterioration of the atmosphere. At the same time, the expansion based on the hydroelectric generation also has some limitations although it contributes positively to the mitigation of the transmissions, which raises new challenges to the reform of the power sector

The trends of the market of electric power production in the world

International Nuclear Information System (INIS)

Allal, S.

1999-01-01

The technologies of natural gas and renewable energies develop the most quickly among the different energy sources. The French and european companies win new parts of market: combined cycle in Asia and Mediterranean, small-scale hydroelectric power plants in China, decentralized rural electrification by photovoltaic systems in Africa. But the conquest of foreign market goes through the development of a solid interior market. This confirms the interest of a diversification of the national power generation park. (N.C.)

76 FR 14651 - BOST4 Hydroelectric Company, LLC; Notice of Application Tendered for Filing With the Commission...

Science.gov (United States)

2011-03-17

... Hydroelectric Company, LLC; Notice of Application Tendered for Filing With the Commission and Soliciting Additional Study Requests Take notice that the following hydroelectric application has been filed with the... No.: P-12757-003. c. Date filed: February 24, 2011. d. Applicant: BOST4 Hydroelectric Company, LLC...

77 FR 785 - BOST5 Hydroelectric Company, LLC, (BOST5); Notice of Application Accepted for Filing and...

Science.gov (United States)

2012-01-06

... Hydroelectric Company, LLC, (BOST5); Notice of Application Accepted for Filing and Soliciting Motions To Intervene and Protests Take notice that the following hydroelectric application has been filed with the... No.: P-12758-003. c. Date filed: March 28, 2011. d. Applicant: BOST5 Hydroelectric Company, LLC...

76 FR 21885 - BOST5 Hydroelectric Company, LLC; Notice of Application Tendered for Filing With the Commission...

Science.gov (United States)

2011-04-19

... Hydroelectric Company, LLC; Notice of Application Tendered for Filing With the Commission and Soliciting Additional Study Requests Take notice that the following hydroelectric application has been filed with the... No.: P-12758-003. c. Date filed: March 28, 2011. d. Applicant: BOST5 Hydroelectric Company, LLC...

77 FR 786 - BOST4 Hydroelectric Company, LLC, (BOST4); Notice of Application Accepted for Filing and...

Science.gov (United States)

2012-01-06

... Hydroelectric Company, LLC, (BOST4); Notice of Application Accepted for Filing and Soliciting Motions To Intervene and Protests Take notice that the following hydroelectric application has been filed with the... No.: P-12757-003. c. Date filed: February 24, 2011. d. Applicant: BOST4 Hydroelectric Company, LLC...

Experience of Minas Gerais Energetic Company (CEMIG) in feasibility studies from hydroelectric power plants: energetic-economic studies; Experiencia da CEMIG em estudos de viabilidade de usinas hidreletricas: estudos energetico-economicos

Energy Technology Data Exchange (ETDEWEB)

Ramos, O C; Bras, A J.F.; Batista Neto, R P; Salles Filho, M P [Companhia Energetica de Minas Gerais (CEMIG), Belo Horizonte, MG (Brazil)

1990-12-31

The experience of Minas Gerais Energetic Company (CEMIG) - Brazil, on the use of dimensioning methodology for hydroelectric power plant from the Coordinated Group of Planning System was described, showing the problems with its use and the solutions, mainly the reservoir and the dimension of installed potential. It was concluded that the calculation procedures of the marginal costs for dimensioning, so as to become these costs more representative in future structure of the Brazilian generator park and less dependent to the oscillation due to conjuncture problems, must be re-evaluated. (C.G.C.). 7 refs, 3 figs, 1 tab.

Lake Robertson hydroelectric project. Construction of a roller compacted concrete dam

Energy Technology Data Exchange (ETDEWEB)

Labelle, M.; Robitaille, F. [Hydro-Quebec, Montreal, PQ (Canada)

1995-12-31

Construction of the Lake Robertson hydroelectric project on Quebec`s Lower North Shore was discussed in detail. The dam and powerhouse, located on the HaHa River, consists of a 134 m long concrete gravity dam, and a 21 MW powerhouse with two 69 kV transmission lines and four substations. The climate, terrain, and geography of the region, all of them characterized as severe, and the logistics of construction of the dam and power lines, aggravated by the isolation and severe conditions at the site, were described. The roller compacted concrete design and construction were noted, and justification for a concrete dam over an earth-fill dam was provided. Economics, properties, and composition of the roller compacted concrete (RCC) were examined, and control test results for the RCC concrete were provided. The use of RCC for the Lake Robertson development was described as successful in terms of the quality, watertightness, and completion time. The experience gained by the participants will make it possible to offer RCC as an alternative on various other projects. 2 figs.

Evaluation of melioration area damage on the river Danube caused by the hydroelectric power plant 'Djerdap 1' backwater.

Science.gov (United States)

Pajic, P; Andjelic, L; Urosevic, U; Polomcic, D

2014-01-01

Construction of the hydroelectric power plant (HPP) 'Djerdap 1' formed a backwater effect on the Danube and its tributaries, which had an inevitable influence on groundwater level, causing it to rise and thus creating additional threats to all melioration areas on more than 300 km of the Danube riversides, as well as on the riversides of its tributaries: the Sava (100 km) and the Tisa (60 km). In this paper, the HPP 'Djerdap 1' backwater effect on some characteristic melioration areas (34 in all) has been analyzed. In most of these areas intensive agricultural activity has always been present. An assessment of agricultural production damage was carried out by complex hydrodynamic calculations (60 calculation profiles) for different backwater regimes, with the aim to precisely quantify the HPP 'Djerdap 1' backwater effect on groundwater piezometric levels. Combining them with complex agroeconomic analyses, the aim is to quantify agricultural production damage and to consider the perspective of melioration area users. This method, which combines two different, but compatible, aspects of the melioration area threat assessment (hydrodynamic and agroeconomic), may present a quality base for further agricultural production threat assessment on all melioration areas on the Danube riversides, with the final aim to consider the economic effects and the importance of its further protection.

Model documentation report: Short-Term Hydroelectric Generation Model

International Nuclear Information System (INIS)

1993-08-01

The purpose of this report is to define the objectives of the Short- Term Hydroelectric Generation Model (STHGM), describe its basic approach, and to provide details on the model structure. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with the Energy Information Administration's (AYE) legal obligation to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). The STHGM performs a short-term (18 to 27- month) forecast of hydroelectric generation in the United States using an autoregressive integrated moving average (UREMIA) time series model with precipitation as an explanatory variable. The model results are used as input for the short-term Energy Outlook

Hydrologic design methodologies for small-scale hydro at ungauged sites. Phase 2A, British Columbia. Primer for Integrated Method for Power Analysis (IMP)

Energy Technology Data Exchange (ETDEWEB)

1986-01-01

This report provides a user's manual for the Integrated Method for Power Analysis (IMP) series of programs, developed to aid in evaluating small-scale hydroelectric power sites in British Columbia. The primary objective of IMP is to address the problem posed by hydroelectric development at sites completely lacking in streamflow records. The province's mountainous terrain, with numerous microclimates, precluded methods of regional analysis based on regression or comparisons with gauged streams; instead, a conceptual model of physical processes on the land and in the atmosphere was used as a basis for developing IMP. The IMP package consists of five basic components: an atmospheric model of annual precipitation and 1-in-10-year 24-h maximum rainfall; a watershed model that will generate a daily series of streamflow data; a flood frequency analysis system that uses site-specific topographical information and information from the atmospheric model to generate the flood frequency curve; a hydroelectric power simulation program which determines the daily energy output for a run-of-river or reservoir storage site; and a graphics analysis package which provides direct visualization of atmospheric and streamflow data, and the results of watershed and power simulation modelling. Within each component of the program, the program requirements and capabilities are discussed. A series of sample screens are shown, illustrating the use of the IMP package for a particular simulation. 18 figs., 2 tabs.

76 FR 14653 - BOST3 Hydroelectric Company, LLC (BOST3); Notice of Application Accepted for Filing and...

Science.gov (United States)

2011-03-17

... Hydroelectric Company, LLC (BOST3); Notice of Application Accepted for Filing and Soliciting Motions To Intervene and Protests Take notice that the following hydroelectric application has been filed with the... No.: P-12756-003. c. Date filed: July 26, 2010. d. Applicant: BOST3 Hydroelectric Company, LLC (BOST3...

Construction and optimization of a power complex with a distributed generation on the basis of renewables and methods of artificial intelligence (on the example of the Republic of Tajikistan

Directory of Open Access Journals (Sweden)

Manusov Vadim

2016-01-01

Full Text Available In this article the basic principles and classifications of small hydroelectric power stations depending on the power of system in which they work are provided. Especially, in the conditions of Tajikistan when all small hydroelectric power stations in some regions carry out the functions of big hydroelectric power stations. We suggest to use new classification by using function of fuzzy logic. The new concept of a power complex (HUB on the basis of the renewed energy source (RES is also offered.

The renewal of hydroelectric concessions, an opportunity for France and its territories

International Nuclear Information System (INIS)

Thibault, Benjamin

2017-01-01

After having recalled that the legal framework for hydroelectric concessions is based on a law adopted in 1919, the author outlines that the opening to competition has in fact emerged at the beginning of the 2000's under the influence of the European Commission. The author indicates and comments various measures implemented regarding the destiny of concessions reaching their expiration date. In this respect, the recent law related to energy transition and for a green growth created an actual possibility of an opening to competition of these concessions. The author comments the content of this law, and its conditions of application. After having outlined that these evolutions have finally built up a complete framework, the author outlines how this opening to competition for hydroelectric concessions can be an opportunity, for example for the development of a modern governance at the local level, and for a better implementation of energy transition

75 FR 66077 - Mahoning Creek Hydroelectric Company, LLC; Notice of Availability of Supplemental Environmental...

Science.gov (United States)