Excess electricity diagrams and the integration of renewable energy

DEFF Research Database (Denmark)

Lund, Henrik

2004-01-01

The article presents a methodology of showing the rate of integration off specific renewable energy sources into the electricity supply system.......The article presents a methodology of showing the rate of integration off specific renewable energy sources into the electricity supply system....

Locally Integrated Energy Sectors supported by renewable network management within municipalities

International Nuclear Information System (INIS)

Kostevšek, Anja; Petek, Janez; Čuček, Lidija; Klemeš, Jiří Jaromír; Varbanov, Petar Sabev

2015-01-01

The decarbonisation of energy systems is one of the important issues of the present energy policies. One of the ways of achieving this is to focus on local energy systems, thus ensuring as much as possible their heat and power self-sufficiency by applying local renewable resource integration and transformation of the renewable energy. Increasing the share of renewables within the local energy balance could be accomplished by using a variety of approaches. One possibility is combining the Locally Integrated Energy Sectors' concept with the novel management and organisation of a renewables-based network. As a first priority, the proposed comprehensive approach focuses on increasing the energy efficiency of municipal heat and power systems using the Locally Integrated Energy Sectors' concept, which is followed by the integration of renewable energy sources with the establishment of a renewable-based network. The proposed approach is illustrated by a case study of district heating based on wood biomass for the municipality Ormož, Slovenia by integrating various end-users from different sectors. - Highlights: • The paper presents a new approach for accelerated inception of RES in municipalities. • LIES with RES network increases energy efficiency and accelerates RES integration. • A demonstration case of district heating on wood biomass within Ormož was performed.

Renewable energy integration into the Spanish power system

International Nuclear Information System (INIS)

Duvison Garcia, Miguel R.; Rivas Cuenca, Ana

2013-01-01

The increase in renewable energy sources in the Spanish peninsular system, along with the installation of other technologies represents a challenge due to the particularities of this type of technologies. Innovative solutions and new operation paradigms may be needed in order to cope with these challenges. Grid codes must incorporate new specifications for these technologies and demand management strategies must be incorporated in control centers in order to balance the system, maximize renewable production and maintain system security. In real time, the most significant improvements that ease integration of renewable resources are the introduction of observability and controllability, which is especially important in dealing with the problem of system balancing and the impact of renewable energy on matching generation and demand. In this regard the commissioning of a control center specifically for management of these technologies have been taken in the Spanish electrical system in order to integrate the maximum amount of renewable energy

Energy Efficiency/Renewable Energy Programs in State Implementation Plans - Guidance Documents

Science.gov (United States)

final document that provides guidance to States and local areas on quantifying and including emission reductions from energy efficiency and renewable energy measures in State Implementation Plans (SIPS).

Gains from an integrated market for tradable renewable energy credits

International Nuclear Information System (INIS)

Mozumder, Pallab; Marathe, Achla

2004-01-01

Decoupling the environmental attributes of renewable energy (RE) generation from the physical unit of energy is an innovative mechanism for marketing green or renewable power. The introduction of 'Tradable Renewable Energy Credits' (TRECs) allows the green power attributes of energy to be sold or traded separately from the physical unit of energy. Since the green power certificate system removes potential locational and physical bottlenecks, both suppliers and consumers gain flexibility in the marketplace. The TREC is also an efficient tool to meet 'Renewable Portfolio Standard' (RPS) required by different states in the US. This paper discusses the RPS requirements for different states and examines the implications of an integrated TREC market. It offers a competitive setting to the consumers to pay for renewable energy and a cost effective tool to support renewable energy generation [Grace and Wiser, 2002]. This paper also highlights some practical difficulties that should be addressed in order to establish an efficient integrated TREC market

Renewable energy strategies for sustainable development

DEFF Research Database (Denmark)

Lund, Henrik

2005-01-01

This paper discusses the perspective of renewable energy (wind, solar, wave and biomass) in the making of strategies for a sustainable development. Such strategies typically involve three major technological changes: energy savings on the demand side, efficiency improvements in the energy...... production, and replacement of fossil fuels by various sources of renewable energy. Consequently, large-scale renewable energy implementation plans must include strategies of how to integrate the renewable sources in coherent energy systems influenced by energy savings and efficiency measures. Based...... on the case of Denmark, this paper discusses the problems and perspectives of converting present energy systems into a 100 percent renewable energy system. The conclusion is that such development will be possible. The necessary renewable energy sources are present, if further technological improvements...

Integrating renewable energy into general practice : final report

Energy Technology Data Exchange (ETDEWEB)

NONE

2008-12-01

This feasibility study was conducted to determine the viability of integrating solar thermal residential domestic hot water systems and community ground source heating and air conditioning within low-income housing projects in Toronto. The study examined the organizational changes needed to incorporate renewable energy systems for small-scale district and individual homes. The study was conducted on behalf of Habitat for Humanity (HFHT). Results of the study showed that the most significant benefits of integrating renewable energy systems will be the elimination of fossil fuel usage; reductions in home operating costs for partner families; and the potential for leveraging increased sponsorship funds. A geoexchange heating, ventilation and air conditioning (HVAC) system was recommended for the new HFHT headquarters as well as for future housing projects. It was concluded that HFHT should prepare for increased integration of renewable energy technologies as capital costs decrease and greater financial incentives become available. 15 tabs., 3 figs.

Dynamic pricing based on a cloud computing framework to support the integration of renewable energy sources

OpenAIRE

Rajeev Thankappan Nair; Ashok Sankar

2014-01-01

Integration of renewable energy sources into the electric grid in the domestic sector results in bidirectional energy flow from the supply side of the consumer to the grid. Traditional pricing methods are difficult to implement in such a situation of bidirectional energy flow and they face operational challenges on the application of price-based demand side management programme because of the intermittent characteristics of renewable energy sources. In this study, a dynamic pricing method usi...

Analysis of renewable energy projects' implementation in Russia

Science.gov (United States)

Ratner, S. V.; Nizhegorodtsev, R. M.

2017-06-01

With the enactment in 2013 of a renewable energy scheme by contracting qualified power generation facilities working on renewable energy sources (RES), the process of construction and connection of such facilities to the Federal Grid Company has intensified in Russia. In 2013-2015, 93 projects of solar, wind, and small hydropower energy were selected on the basis of competitive bidding in the country with the purpose of subsequent support. Despite some technical and organizational problems and a time delay of some RES projects, in 2014-2015 five solar generating facilities with total capacity of 50 MW were commissioned, including 30 MW in Orenburg oblast. However, the proportion of successful projects is low and amounts to approximately 30% of the total number of announced projects. The purpose of this paper is to analyze the experience of implementation of renewable energy projects that passed through a competitive selection and gained the right to get a partial compensation for the construction and commissioning costs of RES generating facilities in the electric power wholesale market zone. The informational background for the study is corporate reports of project promoters, analytical and information materials of the Association NP Market Council, and legal documents for the development of renewable energy. The methodological base of the study is a theory of learning curves that assumes that cost savings in the production of high-tech products depends on the production growth rate (economy of scale) and gaining manufacturing experience (learning by doing). The study has identified factors that have a positive and a negative impact on the implementation of RES projects. Improvement of promotion measures in the renewable energy development in Russia corresponding to the current socio-economic situation is proposed.

Renewable Electricity-to-Grid Integration | Energy Systems Integration

Science.gov (United States)

Facility | NREL Renewable Electricity-to-Grid Integration Renewable Electricity-to-Grid Integration NREL works with industry partners to optimize strategies for effectively interconnecting renewable renewable electric grid integration work includes research and development (R&D) on advanced inverters

Smart power systems and renewable energy system integration

CERN Document Server

2016-01-01

This monograph presents a wider spectrum of researches, developments, and case specific studies in the area of smart power systems and integration of renewable energy systems. The book will be for the benefit of a wider audience including researchers, postgraduate students, practicing engineers, academics, and regulatory policy makers. It covers a wide range of topics from fundamentals, and modelling and simulation aspects of traditional and smart power systems to grid integration of renewables; Micro Grids; challenges in planning and operation of a smart power system; risks, security, and stability in smart operation of a power system; and applied research in energy storage. .

Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience

Energy Technology Data Exchange (ETDEWEB)

Cochran, Jaquelin [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bird, Lori [National Renewable Energy Lab. (NREL), Golden, CO (United States); Heeter, Jenny [National Renewable Energy Lab. (NREL), Golden, CO (United States); Arent, Douglas J. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

2012-04-30

Many countries—reflecting very different geographies, markets, and power systems—are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

Incentives for Energy Saving and Renewable Energy in the Netherlands

International Nuclear Information System (INIS)

Cace, J.

2008-01-01

Energy saving and renewable energy are again on the Dutch political agenda. Based on the governmental energy report, market parties have developed the action plan for the realisation of national renewable energy targets. The evaluation of recently closed subsidy programmes and development of new incentives take place in close cooperation among governmental organisations and market parties. For the financing of the action plan the government has reserved the budget up to 2011. The government believes that the implementation of energy efficiency and renewable energy will strengthen the national economy and that the benefits of these measures will exceed the costs. The main obstacles related to the implementation of a large scale wind power generation are: spatial integration, permits and connection to the grid. Also, the large scale biomass plants meet problems because of the lack of clear environmental and sustainability criteria. The Dutch targets for 2020 are: increasing of energy efficiency with 20%, 20% renewable energy and decreasing of CO 2 -emissions with 30%.(author)

Integrated transport and renewable energy systems

DEFF Research Database (Denmark)

Mathiesen, Brian Vad; Lund, Henrik; Nørgaard, P.

2008-01-01

No single technology can solve the problem of ever increasing CO2 emissions from transport. Here, a coherent effort to integrate transport into energyplanning is proposed, using multiple means promoting sustainable transport. It is concluded that a 100 per cent renewable energy transport system...... is possible but is connected to significant challenges in the path towards it. Biomass is a limited resource and it is important to avoid effecting the production of food. The integration of the transport with the energy system is crucial as is a multi-pronged strategy. Short term solutions have to consider...

Renewable energy

DEFF Research Database (Denmark)

Olsen, Birgitte Egelund

2016-01-01

Renewable energy projects are increasingly confronted by local opposition, which delays and sometimes even prevents their implementation. This reflects the frequent gap between support for the general idea of renewables as a strategy for reducing carbon emissions, and acceptance of renewable energy...

The Integration of Sustainable Transport into Future Renewable Energy Systems in China

DEFF Research Database (Denmark)

Liu, Wen

use are largely lost in the current fossil fuel dominated energy systems. Sustainable transport development requires solutions from an overall renewable energy system in which integration of large-scale intermittent renewable energy needs assistance. Technologies of alternative vehicle fuels...... in transport may play a role in furthering such integration. The objective of this research is to make a contribution to the development of methodologies to identify and develop future sustainable transport systems as well as to apply such methodologies to the case of China. In particular, the methodological...... development focuses on 1) identifying suitable transport technologies and strategies based on renewable energy and 2) evaluating such technologies from the perspective of overall renewable energy system integration. For this purpose, a methodological framework involving the research fields of both...

City-integrated renewable energy for urban sustainability.

Science.gov (United States)

Kammen, Daniel M; Sunter, Deborah A

2016-05-20

To prepare for an urban influx of 2.5 billion people by 2050, it is critical to create cities that are low-carbon, resilient, and livable. Cities not only contribute to global climate change by emitting the majority of anthropogenic greenhouse gases but also are particularly vulnerable to the effects of climate change and extreme weather. We explore options for establishing sustainable energy systems by reducing energy consumption, particularly in the buildings and transportation sectors, and providing robust, decentralized, and renewable energy sources. Through technical advancements in power density, city-integrated renewable energy will be better suited to satisfy the high-energy demands of growing urban areas. Several economic, technical, behavioral, and political challenges need to be overcome for innovation to improve urban sustainability. Copyright © 2016, American Association for the Advancement of Science.

Energy installation implementation to the proof of law: the example of renewable marine energy

International Nuclear Information System (INIS)

Bonis, Anne

2013-01-01

The first renewable marine energy projects were first presented during the so called Eole program in 1996, and then during a call for bids on offshore wind-power in 2004. Despite these initiatives and a second call for bids in 2011, only a few prototypes are being tested at the beginning of 2013. This study aims to determine if the French legislation is adapted to this emerging new activity of renewable marine energy installation implementation. The results of three-year research show that several advances have contributed to defining a legal framework favorable to the implementation of renewable marine energy production installation; yet, their legal regime has not been finalized. Nevertheless, a comparison with maritime and coastal legislations reveals solutions are worth considering and possible. As a result, an intervention from legislative or parliamentary authorities seems necessary to simplify the implementation of projects and to limit the risks of legal disputes [fr

Which leadership for renewable energies?

International Nuclear Information System (INIS)

Chaumien, Marielle

2016-02-01

This publication first outlines that France is late in deploying renewable energies by 2020. It comments the application of the Energy multi-year plan (PPE), evokes the content of a report by the French Court of Auditors about costs and means of implementation of transition (with notably the issue of maintenance of nuclear plants). It also shows that European Union is not a leader in renewable energies any more, that some European countries are changing sides, that figures and trends must be carefully compared with those in the field of fossil and nuclear energies, that all energies are not all the same, that jobs and system integration are also important, that investments and attractiveness of countries in renewable energies must be assessed, and that a mobilisation on small scale and consumer-based renewable energies is required. Ten recommendations are made for France to support the EU leadership development

Economic dispatch optimization for system integrating renewable energy sources

Science.gov (United States)

Jihane, Kartite; Mohamed, Cherkaoui

2018-05-01

Nowadays, the use of energy is growing especially in transportation and electricity industries. However this energy is based on conventional sources which pollute the environment. Multi-source system is seen as the best solution to sustainable development. This paper proposes the Economic Dispatch (ED) of hybrid renewable power system. The hybrid system is composed of ten thermal generators, photovoltaic (PV) generator and wind turbine generator. To show the importance of renewable energy sources (RES) in the energy mix we have ran the simulation for system integrated PV only and PV plus wind. The result shows that the system with renewable energy sources (RES) is more compromising than the system without RES in terms of fuel cost.

Technical and Economic Potential of Distributed Energy Storages for the Integration of Renewable Energy

DEFF Research Database (Denmark)

Sveinbjörnsson, Dadi Þorsteinn; Trier, Daniel; Hansen, Kenneth

Very high penetration of fluctuating renewable energy sources can lead to new challenges in balancing energy supply and demand in future energy systems. This work, carried out as a part of Annex 28 of the IEA ECES programme, addresses this. The aim of the study is to identify which role decentral...... indicate that sector coupling along with an intelligent choice of distributed energy storage technologies can enable the integration of large shares of fluctuating renewable energy in an energy efficient and cost-effective way.......Very high penetration of fluctuating renewable energy sources can lead to new challenges in balancing energy supply and demand in future energy systems. This work, carried out as a part of Annex 28 of the IEA ECES programme, addresses this. The aim of the study is to identify which role...... decentralised energy storages (DES) should play in integrating fluctuating renewable energy sources. The technical and economic potential for DES solutions is quantified using energy system modelling, and it is identified which DES technologies have the largest total (technical and economic) potential. For this...

European conferences. Integration of renewable energies in buildings; Conferences europeennes. Integration des energies renouvelables dans le batiment

Energy Technology Data Exchange (ETDEWEB)

Bal, J.L. [ADEME, Agence de l' Environnement et de la Maitrise de l' Energie, 75 - Paris (France); Letz, T. [Asder, 73 - Saint Alban Leysse (France); Tuille, F. [Observ' er, 75 - Paris (France)] [and others

2001-07-01

This document comprises 2 parts. First part is a detailed program of the exhibition with a press dossier which presents the different topics discussed during conferences and round tables, the market of renewable energies, and a list of agencies and companies involved in renewable energies development and products. The second part is the abstracts of the lectures presented during the European conferences on the integration of renewable energies in buildings (solar-thermal and photovoltaic systems, wood fuel and biomass). (J.S.)

The Role of CHP Plants in the Integration of Fluctuating Renewable Energy Sources

DEFF Research Database (Denmark)

Lund, Henrik

2002-01-01

The paper is an Expression of Interest to the European Commission about renewable energy sources and their integration in a energy system......The paper is an Expression of Interest to the European Commission about renewable energy sources and their integration in a energy system...

Essays on the efficient integration of renewable energies into electricity markets

Energy Technology Data Exchange (ETDEWEB)

Obermueller, Frank

2018-01-09

The dissertation ''Essay on the Efficient Integration of Renewable Energies into Electricity Markets'' consists of five research articles which shed light on the efficient integration of renewable energies into electricity markets. A major share of renewable energies has characteristics which differ from classical conventional generation technologies. The uncertain weather-dependent characteristics in combination with almost-zero marginal generation costs raise new challenges to some parts of the electricity system. On the other side, the promotion of renewable energies seems promising to achieve the Energy Transition targets and reduce Germany's CO{sub 2}-emissions. This becomes relevant in the light of the 2015 UN Climate Change Conference which negotiated the Paris Agreement to tackle climate change, e.g. by the restriction of global warming to a maximum of 2 C, and translate to CO{sub 2}-reduction efforts, especially for the carbon-dioxide intense electricity sectors. The five research papers focusing on different aspects and potential inefficiencies of the renewable energy market integration. The focus can roughly be separated into temporal and regional efficiency examinations. The temporal efficiency is subject to paper 1, paper 2 and paper 3. The regional efficiency is subject to paper 5 which is based on the preliminary findings and the generated dataset in paper 4.

Essays on the efficient integration of renewable energies into electricity markets

International Nuclear Information System (INIS)

Obermueller, Frank

2018-01-01

The dissertation ''Essay on the Efficient Integration of Renewable Energies into Electricity Markets'' consists of five research articles which shed light on the efficient integration of renewable energies into electricity markets. A major share of renewable energies has characteristics which differ from classical conventional generation technologies. The uncertain weather-dependent characteristics in combination with almost-zero marginal generation costs raise new challenges to some parts of the electricity system. On the other side, the promotion of renewable energies seems promising to achieve the Energy Transition targets and reduce Germany's CO 2 -emissions. This becomes relevant in the light of the 2015 UN Climate Change Conference which negotiated the Paris Agreement to tackle climate change, e.g. by the restriction of global warming to a maximum of 2 C, and translate to CO 2 -reduction efforts, especially for the carbon-dioxide intense electricity sectors. The five research papers focusing on different aspects and potential inefficiencies of the renewable energy market integration. The focus can roughly be separated into temporal and regional efficiency examinations. The temporal efficiency is subject to paper 1, paper 2 and paper 3. The regional efficiency is subject to paper 5 which is based on the preliminary findings and the generated dataset in paper 4.

Efficient integration of renewable energies in the German electricity market

International Nuclear Information System (INIS)

Nabe, C.A.

2006-01-01

Liberalisation of the electricity sector aims to carry out coordination tasks within the system by markets and market prices. This study examines how markets need to be designed to carry out coordination tasks caused by integration of renewable energies in an efficient way. This question is applied to the German electricity system and recommendations are derived from identified deficits. The examination uses the structure-conduct-performance approach of industrial organisation economics. Integration of renewable energies does not result in entirely new coordination tasks but complicates those that exist in any electricity supply system. Within the short-term coordination tasks provision and operation of reserve capacity is affected by renewable energies. Long-term coordination means that the relation between fixed and variable costs of generators as well as generator flexibility has to be adjusted to the characteristics of renewable energies. The relevant short-term coordination task with the network is congestion management. In the long run costs of grid expansion and permanent congestion management have to be balanced. For the execution of short-run coordination tasks integrated and centralised market architectures are superior to decentralised architectures. The increase of short-term coordination tasks due to renewable energies caused by inflexibilities of consumers and conventional generators results in more information that has to be considered. By centralising that information in one market, an increase in productive efficiency can be obtained. In Germany the increased coordination tasks are determined by the integration of wind generators into the electricity system. The present German market architecture results in inefficiencies in short-term coordination. This is demonstrated by an analysis of procedural rules and prices of the ancillary service markets. They demonstrate that market performance is low and significant deviations from competitive prices

Potential of renewable energy systems in China

International Nuclear Information System (INIS)

Liu, Wen; Lund, Henrik; Mathiesen, Brian Vad; Zhang, Xiliang

2011-01-01

Along with high-speed economic development and increasing energy consumption, the Chinese Government faces a growing pressure to maintain the balance between energy supply and demand. In 2009, China has become both the largest energy consumer and CO 2 emitting country in the world. In this case, the inappropriate energy consumption structure should be changed. As an alternative, a suitable infrastructure for the implementation of renewable energy may serve as a long-term sustainable solution. The perspective of a 100% renewable energy system has been analyzed and discussed in some countries previously. In this process, assessment of domestic renewable energy sources is the first step. Then appropriate methodologies are needed to perform energy system analyses involving the integration of more sustainable strategies. Denmark may serve as an example of how sustainable strategies can be implemented. The Danish system has demonstrated the possibility of converting into a 100% renewable energy system. This paper discusses the perspective of renewable energy in China firstly, and then analyses whether it is suitable to adopt similar methodologies applied in other countries as China approaches a renewable energy system. The conclusion is that China's domestic renewable energy sources are abundant and show the possibility to cover future energy demand; the methodologies used to analyse a 100% renewable energy system are applicable in China. Therefore, proposing an analysis of a 100% renewable energy system in China is not unreasonable. (author)

Regional Integration of Renewable Energies; Integracion Regional de energias Renovables

Energy Technology Data Exchange (ETDEWEB)

Amador Guerra, J; Dominguez Bravo, J [Ciemat.Madrid (Spain)

2000-07-01

The aim of this report is to show how Energetic Planning and Territorial Policy should be working together for a better integration of Renewable Energies into Region. This Integration should to contemplate social, economic and environmental aspects of the territory. The report has been classified into 7 items: planning, energetic scenarios, technology transfer for Renewable Energies dissemination, barriers for this dissemination, environmental aspects, European Union Policy and Decision Support Systems (and specially GIS). (Author) 54 refs.

Regional Energy Planning Tool for Renewable Integrated Low-Energy District Heating Systems

DEFF Research Database (Denmark)

Tol, Hakan; Dincer, Ibrahim; Svendsen, Svend

2013-01-01

Low-energy district heating systems, operating at low temperature of 55 °C as supply and 25°C as return, can be the energy solution as being the prevailing heating infrastructure in urban areas, considering future energy schemesaiming at increased exploitation of renewable energy sources together...... with low-energy houses in focus with intensified energy efficiency measures. Employing low-temperature operation allows the ease to exploit not only any type of heat source but also low-grade sources, i.e., renewable and industrial waste heat, which would otherwise be lost. In this chapter, a regional...... energy planning tool is described considered with various energy conversion systems based on renewable energy sources to be supplied to an integrated energy infrastructure involving a low-energy district heating, a district cooling, and an electricity grid. The developed tool is performed for two case...

The Renewable Energy Data Explorer: Mapping Our Renewable Energy Future

Energy Technology Data Exchange (ETDEWEB)

2017-04-13

The Renewable Energy (RE) Data Explorer, developed by the National Renewable Energy Laboratory, is an innovative web-based platform that allows users to visualize and analyze renewable energy potential. The RE Data Explorer informs prospecting, integrated planning, and policymaking to enable low emission development.

Energy Production System Management - Renewable energy power supply integration with Building Automation System

International Nuclear Information System (INIS)

Figueiredo, Joao; Martins, Joao

2010-01-01

Intelligent buildings, historically and technologically, refers to the integration of four distinctive systems: Building Automation Systems (BAS), Telecommunication Systems, Office Automation Systems and Computer Building Management Systems. The increasing sophisticated BAS has become the 'heart and soul' of modern intelligent buildings. Integrating energy supply and demand elements - often known as Demand-Side Management (DSM) - has became an important energy efficiency policy concept. Nowadays, European countries have diversified their power supplies, reducing the dependence on OPEC, and developing a broader mix of energy sources maximizing the use of renewable energy domestic sources. In this way it makes sense to include a fifth system into the intelligent building group: Energy Production System Management (EPSM). This paper presents a Building Automation System where the Demand-Side Management is fully integrated with the building's Energy Production System, which incorporates a complete set of renewable energy production and storage systems.

Use of derivative instruments to integrate renewable energies into the electricity market

International Nuclear Information System (INIS)

Hartmann, Kilian; Nelles, Michael; Candra, Dodiek Ika

2017-01-01

The implementation of renewable energies to the electricity market is inefficient and expensive with current measures. Further these measures are prejudicial for the existing energy-only-market. The combination of fluctuating and controllable renewable powers in virtual power plants enables the marketing of this power as a derivate on the future market. Thus would relieve the spot market and stabilize pricing on both markets. Subsequently the renewable energy obligation will reduce and renewable energies could be marketed as secured power.

A review of computer tools for analysing the integration of renewable energy into various energy systems

DEFF Research Database (Denmark)

Connolly, D.; Lund, Henrik; Mathiesen, Brian Vad

2010-01-01

to integrating renewable energy, but instead the ‘ideal’ energy tool is highly dependent on the specific objectives that must be fulfilled. The typical applications for the 37 tools reviewed (from analysing single-building systems to national energy-systems), combined with numerous other factors......This paper includes a review of the different computer tools that can be used to analyse the integration of renewable energy. Initially 68 tools were considered, but 37 were included in the final analysis which was carried out in collaboration with the tool developers or recommended points...... of contact. The results in this paper provide the information necessary to identify a suitable energy tool for analysing the integration of renewable energy into various energy-systems under different objectives. It is evident from this paper that there is no energy tool that addresses all issues related...

Dynamic integration of residential building design and green energies : the Bireth approach : building integrated renewable energy total harvest approach

Energy Technology Data Exchange (ETDEWEB)

Cheung, K.P. [Hong Kong Univ., Hong Kong (China). Dept. of Architecture; Luk, C.L.P. [Chu Hai College of Higher Education, Hong Kong (China). Dept. of Architecture; Wong, S.T. [Hong Kong Univ., Hong Kong (China). Div. of Arts and Humanities, SPACE; Chung, S.L.; Fung, K.S.; Leung, M.F. [Hong Kong Inst. of Vocational Education, Hong Kong (China)

2006-07-01

Renewable energy sources that are commonly used in buildings include solar energy, wind energy and rainwater collection. High quality environmentally responsive residential buildings are designed to provide good insulation in winter and solar shading in summer. However, this study demonstrated that the green energy design in residential buildings is not usually well integrated. For example, windows with clear double or triple glazed glass, allow good penetration of sunlight during the day in winter, but are not further dynamically insulated for when the sun goes down to avoid heat loss from the building. Additionally, good solar static shading devices often block much needed daylight on cloudy winter days. These examples emphasize the lack of an integrated approach to gain the best advantage of green energies and to minimize energy costs in residential buildings. This study addressed issues facing the integrated approach with particular reference to the design of a small residential building in rural Beijing. The design included a new approach for interpreting a traditional Beijing court yard house in the modern Beijing rural context, while integrating multi-responding innovative green energy applications derived from first principles. This paper also presented a proposal for a village house in Hong Kong to harvest as much renewable energies as possible, primarily wind energy and solar energy, that come into contact with the building. The purpose was to work towards a renewable energy approach for buildings, namely the Bireth approach, which will benefit practically all houses by making them zero energy houses. The paper described the feasibility of integrating renewable energies in buildings to fulfill performance requirements such improving ventilation, providing warm interiors, drying clothes, or storing solar and wind energies into power batteries. The challenges facing the development of a proposed micro solar hot air turbine were also presented. 15 refs., 6

Renewable energy policy and landscape management in Andalusia, Spain: The facts

International Nuclear Information System (INIS)

Prados, Maria-Jose

2010-01-01

Renewable energy has developed spectacularly in Spain since the European Union started a process of energy policy reform. A review of Spanish State legislation on renewable energies confirms that the success in installing renewable energy is attributable to public aid. Andalusia is one of the autonomous communities, which has simultaneously developed the legal framework and very successfully implemented the introduction of renewable power. When implementing the central government's policy, the Andalusian regional government prioritised increases in both surface cover by wind and solar plants (thermal and photovoltaic energy) and in the number of companies involved. However, this development of renewable energies took place without any proper integration into regional spatial and landscape planning. This paper explores renewable power implementation in Andalusia through regulatory measures put in place over the last decade to develop renewable energy systems and the way they can be managed alongside planning issues. The location of large-scale renewable plants has had consequences for territory in the socio-political context of renewable energy promotion. The main findings focus on renewable energy plant sprawl throughout rural areas in Andalusia with no clear effect on landscape management and no firm backing from the local population.

Smart Integrated Renewable Energy Systems (SIRES: A Novel Approach for Sustainable Development

Directory of Open Access Journals (Sweden)

Zeel Maheshwari

2017-08-01

Full Text Available Technical and economic aspects of the viability of SIRES (Smart Integrated Renewable Energy Systems for sustainable development of remote and rural areas of the world are discussed. The hallmark of the proposed SIRES is the smart utilization of several renewable resources in an integrated fashion and matching of resources and needs a priori with the ultimate goal of “energization”, not just “electrification”. Historical background leading to this approach is succinctly presented along with a comprehensive schematic diagram. Modeling of various components and their collective use in optimizing SIRES with the aid of genetic algorithm are presented using a typical hypothetical example. SIRES is also compared with various approaches for rural development based on Annualized Cost of System (ACS and installation costs. Implementation of SIRES will lead to overall sustainable development of rural communities.

Driving factors for the regional implementation of renewable energy ‐ A multiple case study on the German energy transition

International Nuclear Information System (INIS)

Lutz, Lotte Marie; Fischer, Lisa-Britt; Newig, Jens; Lang, Daniel Johannes

2017-01-01

Understanding what drives the regional implementation of renewable energy is a prerequisite for energy transitions toward a post-fossil-based energy economy. This paper presents an empirical analysis of driving factors for the regional implementation and use of renewable energy. We tested literature-derived driving factors in a comparative analysis of 18 selected study regions using Rough Set Analysis and performance analysis. We paid special attention to common combinations of driving factors, which we understand as established practices concerning the use and implementation of renewable energy. Our findings confirm most of the driving factors identified in the literature, for example the existence of key actors, knowledge exchange, or the use of goals and milestones. We also observe differences in key driving factors between highly successful and less successful regions, especially regarding funding opportunities. The results may support policy makers who aim to successfully implement renewable energy at a regional level. - Highlights: • We analyzed driving factors for RE implementation in 18 best-practice regions. • Most driving factors from transition and governance literature were confirmed. • We identified common successful practices concerning RE implementation.

The integration of renewable energies into the electricity systems of North Africa

International Nuclear Information System (INIS)

Brand, Bernhard

2015-01-01

How can renewable energy sources be efficiently integrated into the North African electricity systems? By using techno-economic modeling methods, this book explores optimized electricity system expansion pathways until the year 2030 for the five North African countries - Morocco, Algeria, Tunisia, Libya and Egypt. The results indicate that renewable energy integration is actually a viable business case for the entire region, if wind and solar capacities are properly planned in conjunction with the conventional generation system and under consideration of the country-specific electricity supply-/demand patterns. Further aspects featured in this publication are the impact of renewable power on the transnational electricity transmission system and the question how decision making processes about renewable energy strategies can be improved in the North African context. The book is a contribution to the scientific literature about energy issues in the Middle East and North Africa (MENA), but also seeks to address political and industrial practitioners concerned with the development of the region's renewable energy future.

The integration of renewable energies into the electricity systems of North Africa

Energy Technology Data Exchange (ETDEWEB)

Brand, Bernhard

2015-11-01

How can renewable energy sources be efficiently integrated into the North African electricity systems? By using techno-economic modeling methods, this book explores optimized electricity system expansion pathways until the year 2030 for the five North African countries - Morocco, Algeria, Tunisia, Libya and Egypt. The results indicate that renewable energy integration is actually a viable business case for the entire region, if wind and solar capacities are properly planned in conjunction with the conventional generation system and under consideration of the country-specific electricity supply-/demand patterns. Further aspects featured in this publication are the impact of renewable power on the transnational electricity transmission system and the question how decision making processes about renewable energy strategies can be improved in the North African context. The book is a contribution to the scientific literature about energy issues in the Middle East and North Africa (MENA), but also seeks to address political and industrial practitioners concerned with the development of the region's renewable energy future.

State-Level Renewable Energy Policy Implementation: How and Why Do Stakeholders Participate?

Directory of Open Access Journals (Sweden)

Valerie Rountree

2018-02-01

Full Text Available For most of the twentieth century, large-scale, utility-owned power plants dominated electricity generation in the United States. Today, however, a growing share of electricity comes from renewable energy sources such as solar and wind energy, which are often small-scale and distributed. In the absence of significant national policies, the Renewable Portfolio Standard has emerged as the key state-level policy governing the deployment and use of renewable energy sources. While renewable energy offers new possibilities for clean energy generation, it also poses new regulatory and governance challenges as a wide range of stakeholders, such as the utilities, regulatory agencies, environmental and consumer advocacy groups, electricity generators, and private citizens, increasingly seek to influence how Renewable Portfolio Standards are implemented. In this study, we ask how and why do stakeholders participate in decision-making about how these policies are implemented? Given the unique context of renewable energy policy, the long-term and iterative nature of renewable energy policy implementation, and the wide range of actors involved, we look at the suite of participatory opportunities available to stakeholders. We interview stakeholders in two states—Colorado and Nevada—to identify the mechanisms through which stakeholders participate and the incentives (or disincentives that influence their willingness to do so. We find that while decision makers in both the states use a variety of mechanisms to engage stakeholders in decision-making, meaningful participation may be limited to stakeholder groups that are knowledgeable about the issues, have the resources to engage in long-term and sustained participation, and have long-standing relationships with decision makers and other stakeholders. Although many stakeholders participate in multiple types of processes to achieve a broader range of benefits, they often perceive their participation as

Integration of renew able energy sources in smart grid: a review

International Nuclear Information System (INIS)

Zafar, S.; Nawaz, K.; Naqvi, S.A.R.; Malik, T.N.

2013-01-01

The increasing complexity of the existing power grid due to rapid population growth, development in technology, infrastructure and computational tools are the factors that contribute to the need of deployment of smart grid for secure and efficient use of electrical energy. The modernization of electric grids toward a smart grid is being carried out to improve reliability, facilitate integration of renewable energies, and improve power consumption management. Due to continuous depletion of primary fuel resources and global concern about the environmental pollution, the development of smart grids based on renewable energy resources has gained huge strategic significance now a days to resolve the energy crisis. However the intermittent and fluctuating nature of these sources makes the integration a difficult task that needs to be effectively addressed. Firstly this paper briefly discuss the emerging renewable energy resources (RERs) and Energy storage systems (EES). Secondly this work comprehensively reviews the potential challenges in integration of these sources in smart grid along with the applied control strategies for their facilitation and some practical case studies. (author)

Vehicle Testing and Integration Facility; NREL (National Renewable Energy Laboratory)

Energy Technology Data Exchange (ETDEWEB)

None

2015-03-02

Engineers at the National Renewable Energy Laboratory’s (NREL’s) Vehicle Testing and Integration Facility (VTIF) are developing strategies to address two separate but equally crucial areas of research: meeting the demands of electric vehicle (EV) grid integration and minimizing fuel consumption related to vehicle climate control. Dedicated to renewable and energy-efficient solutions, the VTIF showcases technologies and systems designed to increase the viability of sustainably powered vehicles. NREL researchers instrument every class of on-road vehicle, conduct hardware and software validation for EV components and accessories, and develop analysis tools and technology for the Department of Energy, other government agencies, and industry partners.

Renewable energy integration in smart grids-multicriteria assessment using the fuzzy analytical hierarchy process

OpenAIRE

JANJIC, ALEKSANDAR; SAVIC, SUZANA; VELIMIROVIC, LAZAR; NIKOLIC, VESNA

2015-01-01

Unlike the traditional way of efficiency assessment of renewable energy sources integration, the smart grid concept is introducing new goals and objectives regarding increased use of renewable electricity sources, grid security, energy conservation, energy efficiency, and deregulated energy market. Possible benefits brought by renewable sources integration are evaluated by the degree of the approach to the ideal smart grid. In this paper, fuzzy analytical hierarchy process methodology for the...

Key Success Factors of Renewable Energy Projects Implementation in Rural Areas of Indonesia

Directory of Open Access Journals (Sweden)

Wati Hermawati

2017-12-01

Full Text Available This paper is an exploratory study on renewable energy implementation in the rural areas of Indonesia. The study aim was to investigate the factors contributing to the sustainability of renewable energy projects in the rural areas. It mostly uses a qualitative approach. Primary data was mainly obtained from in-depth interviews conducted in site areas with the project owners, project managers, a key person in each local government, industry representatives, and the local community, including local leaders and users of renewable energy. Secondary data in the form of various official project reports was also used. The results indicated that the success of energy project implementation lay not only in good technology performance and long-term maintenance, but was also highly dependent on six key factors, namely: (1 project planning and development; (2 community participation; (3 active communication and beneficiaries; (4 availability of maintenance program, workshop and technician; (5 project management and institutionalization; (6 local government support and networks. The findings from this study provide useful insights to all stakeholders involved in the implementation of renewable energy technology for the rural areas in Indonesia.

Optimal Renewable Energy Integration into Refinery with CO2 Emissions Consideration: An Economic Feasibility Study

Science.gov (United States)

Alnifro, M.; Taqvi, S. T.; Ahmad, M. S.; Bensaida, K.; Elkamel, A.

2017-08-01

With increasing global energy demand and declining energy return on energy invested (EROEI) of crude oil, global energy consumption by the O&G industry has increased drastically over the past few years. In addition, this energy increase has led to an increase GHG emissions, resulting in adverse environmental effects. On the other hand, electricity generation through renewable resources have become relatively cost competitive to fossil based energy sources in a much ‘cleaner’ way. In this study, renewable energy is integrated optimally into a refinery considering costs and CO2 emissions. Using Aspen HYSYS, a refinery in the Middle East was simulated to estimate the energy demand by different processing units. An LP problem was formulated based on existing solar energy systems and wind potential in the region. The multi-objective function, minimizing cost as well as CO2 emissions, was solved using GAMS to determine optimal energy distribution from each energy source to units within the refinery. Additionally, an economic feasibility study was carried out to determine the viability of renewable energy technology project implementation to overcome energy requirement of the refinery. Electricity generation through all renewable energy sources considered (i.e. solar PV, solar CSP and wind) were found feasible based on their low levelized cost of electricity (LCOE). The payback period for a Solar CSP project, with an annual capacity of about 411 GWh and a lifetime of 30 years, was found to be 10 years. In contrast, the payback period for Solar PV and Wind were calculated to be 7 and 6 years, respectively. This opens up possibilities for integrating renewables into the refining sector as well as optimizing multiple energy carrier systems within the crude oil industry

Power electronics for renewable and distributed energy systems a sourcebook of topologies, control and integration

CERN Document Server

Chakraborty, Sudipta; Kramer, William E

2013-01-01

While most books approach power electronics and renewable energy as two separate subjects, Power Electronics for Renewable and Distributed Energy Systems takes an integrative approach; discussing power electronic converters topologies, controls and integration that are specific to the renewable and distributed energy system applications. An overview of power electronic technologies is followed by the introduction of various renewable and distributed energy resources that includes photovoltaics, wind, small hydroelectric, fuel cells, microturbines and variable speed generation. Energy storage s

Renewable energy resources

CERN Document Server

Twidell, John

2015-01-01

Renewable Energy Resources is a numerate and quantitative text covering the full range of renewable energy technologies and their implementation worldwide. Energy supplies from renewables (such as from biofuels, solar heat, photovoltaics, wind, hydro, wave, tidal, geothermal, and ocean-thermal) are essential components of every nation's energy strategy, not least because of concerns for the local and global environment, for energy security and for sustainability. Thus in the years between the first and this third edition, most renewable energy technologies have grown from fledgling impact to s

Renewable energy for sustainable development and environment

Energy Technology Data Exchange (ETDEWEB)

Omer, Abdeen

2010-09-15

The increased availability of reliable and efficient energy services stimulates new development alternatives. This article discusses the potential for such integrated systems in the stationary and portable power market in response to the critical need for a cleaner energy technology. Throughout the theme several issues relating to renewable energies, environment and sustainable development are examined from both current and future perspectives. It is concluded that renewable environmentally friendly energy must be encouraged, promoted, implemented and demonstrated by full-scale plan especially for use in remote rural areas.

Parliamentary conference on renewable energies: Renewable energies - What opportunities for France? Synthesis of debates

International Nuclear Information System (INIS)

Audy, Jean-Pierre; Franco, Gaston; Courteau, Roland; Bataille, Delphine; Deneux, Marcel; Lemoine, Lionel; Pecresse, Jerome; Lepercq, Thierry; Chone, Fabien; Faucheux, Ivan; Schwarz, Virginie; Pelletier, Philippe; Vial, Jean-Pierre; Lahutte, Pierre

2012-01-01

This document proposes a synthesis of debates organised within the frame the two sessions of a conference on renewable energies. The first session addressed the place given to renewable energies in the French energy mix. Contributions proposed an overview of industrial ambitions for the different sectors: wind energy (bidding projects leading to a French specialisation in offshore wing energy), photovoltaic (issue of re-structuration and development, and of technology selection), sea energy (French position, European situation), hydraulic (renewal of the sector through a renewal of hydroelectric concessions), biomass (level of exploitation), and biogas-bio-diesel-bio-ethanol (issue of economic viability). A second set of contributions addressed the financing cost of sector development (results of an inquiry commission on electricity cost, question of the efficiency of mechanisms of financial support of renewable energies, CSPE and purchase tariff, energy cost for the consumer with a sustainable energy mix, education opportunities for future jobs). The second session addressed the relationship between renewable energies and economic growth. A first set of contribution addressed the technological orientations (super grids, European cooperation, investment programs for transport and connection to renewable energies, returns on experience on smart grids), and a second set addressed the synergies between innovation and territories (partnership between research centres and local communities or private sector, supporting small and medium enterprises in their innovation and export efforts, implementation of local energy policy tools such as PCET and SRCAE, integration of protection of the environment in urban equipment and furniture, progress in energy renovation and struggle against fuel poverty)

The renewable energy development framework - II. The foundations of renewable energy development: Economic foundations of renewable energies; International foundations of renewable energies; European foundations of renewable energy development; Foundations of renewable energy development in internal law

International Nuclear Information System (INIS)

Combes Motel, Pascale; Thebaut, Matthieu; Loic Grard; Michallet, Isabelle

2012-01-01

A first article analysis the reasons for the development of renewable energies (economic and environmental reasons, European commitments in terms of production objectives), how these renewable energies can be developed (acceptation by the population, administrative, technological, and financial constraints, political instruments related to market, taxes and purchase prices). A second article proposes a discussion about the way international law deals with renewable energies as far as texts as well as actors are concerned. The third article describes the European ambitions regarding renewable energies as a product of national perspectives (national action plans and projects) as well as of European perspectives (financing, integrated actions). The last article presents and comments various legal texts dealing with the development of renewable energies in France (texts concerning the right to energy, the environment law, planning tools, incentive measures)

Geological subsurface will contribute significantly to the implementation of the energy policy towards renewables in Germany

Science.gov (United States)

Martens, Sonja; Kühn, Michael

2015-04-01

The demands to exploit the geological subsurface are increasing. In addition to the traditional production of raw materials such as natural gas and petroleum, or potable groundwater extraction the underground will most likely also be used to implement the climate and energy policy objectives in the context of the energy transition to renewables. These include the storage of energy from renewable sources (e.g. hydrogen and methane), the use of geothermal energy and possibly the long-term storage of carbon dioxide to reduce the release of greenhouse gases into the atmosphere. The presentation addresses the question which realistic contribution can be expected from the geo-resource subsurface for the energy revolution, the detachment of fossil and nuclear fuels as well as the reduction of CO2 emissions. The study of Henning and Palzer [1] that models the energy balance of the electricity and heat sector including all renewable energy converters, storage components and loads for a future German energy system shows that provision with 100% renewables is economically feasible by 2050. Based on their work, our estimates underline that already in 2015 more than 100% of the required methane storage capacities therein are available and more than 100% of the heat pump demands might be covered by shallow and deep geothermal energy production in the future. In addition we show that a newly developed energy storage system [2-3] could be applied to store 20-60% of the surplus energy from renewables expected for 2050 with integrated gas storage of methane and CO2. [1] Henning H-M, Palzer A (2014) A comprehensive model for the German electricity and heat sector in a future energy system with a dominant contribution from renewable energy technologies -- Part I: Methodology. Renewable and Sustainable Energy Reviews 30, 1003-1018. doi: 10.1016/j.rser.2013.09.012 [2] Kühn M, Nakaten N, Streibel M, Kempka T (2014) CO2 geological storage and utilization for a carbon neutral "power

Integrating Variable Renewable Energy into the Grid: Key Issues, Greening the Grid (Spanish Version)

Energy Technology Data Exchange (ETDEWEB)

2016-04-01

This is the Spanish version of 'Greening the Grid - Integrating Variable Renewable Energy into the Grid: Key Issues'. To foster sustainable, low-emission development, many countries are establishing ambitious renewable energy targets for their electricity supply. Because solar and wind tend to be more variable and uncertain than conventional sources, meeting these targets will involve changes to power system planning and operations. Grid integration is the practice of developing efficient ways to deliver variable renewable energy (VRE) to the grid. Good integration methods maximize the cost-effectiveness of incorporating VRE into the power system while maintaining or increasing system stability and reliability. When considering grid integration, policy makers, regulators, and system operators consider a variety of issues, which can be organized into four broad topics: New Renewable Energy Generation, New Transmission, Increased System Flexibility, and Planning for a High RE Future.

Environmental Programs: National Renewable Energy Laboratory

Energy Technology Data Exchange (ETDEWEB)

2001-05-01

Major NREL environmental programs and initiatives include: integrated energy and environmental strategies; implementation of air pollution programs and climate change programs; Green Power Network; environmental and economic impacts and benefits of energy efficiency and renewable energy (EERE) technologies; technology transfer between developed and developing countries; greenhouse gas emission reduction projects; climate change action plans with developing countries and development of life cycle assessments.

RE Data Explorer: Informing Variable Renewable Energy Grid Integration for Low Emission Development

Energy Technology Data Exchange (ETDEWEB)

Cox, Sarah L [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-11-08

The RE Data Explorer, developed by the National Renewable Energy Laboratory, is an innovative web-based analysis tool that utilizes geospatial and spatiotemporal renewable energy data to visualize, execute, and support analysis of renewable energy potential under various user-defined scenarios. This analysis can inform high-level prospecting, integrated planning, and policy making to enable low emission development.

Developing markets for renewable energy technologies

International Nuclear Information System (INIS)

Charters, W.W.S.

2001-01-01

Although renewable energy resources are now being utilised more on a global scale than ever before, there is no doubt their contribution to the energy economy can still be greatly increased. Recently international support for developing these relatively new sources of energy has been driven by their benefits as assessed by reduced environmental impact, particularly reduced greenhouse gas emissions. After several decades of continuous but somewhat erratic funding for research and development of renewables, it is time to take stock of the key issues to be addressed in terms of implementation of major renewable energy programmes on a large scale worldwide. One of the first steps in this process is the identification and encouragement of reliable continuous markets both in developed and developing nations. Future energy policy and planning scenarios should take into account the factors necessary to integrate renewables in all their diverse forms into the normal energy economy of the country. Other critical factors in market development will include the mass production of high quality, reliable and reasonable cost technical products and the provision of adequate finance for demonstrating market ready and near market renewables equipment. Government agencies need to aid in the removal of legislative and institutional barriers hindering the widespread introduction of non-conventional energy sources and to encourage the implementation of government purchasing schemes. Recent moves by companies in Australia to market 'green energy' to customers should also aid in the public awareness of the ultimate potential of renewables leading to greater use in the industrial, commercial and domestic sectors. (author)

Balancing Area Coordination: Efficiently Integrating Renewable Energy Into the Grid, Greening the Grid

Energy Technology Data Exchange (ETDEWEB)

Katz, Jessica; Denholm, Paul; Cochran, Jaquelin

2015-06-01

Greening the Grid provides technical assistance to energy system planners, regulators, and grid operators to overcome challenges associated with integrating variable renewable energy into the grid. Coordinating balancing area operation can promote more cost and resource efficient integration of variable renewable energy, such as wind and solar, into power systems. This efficiency is achieved by sharing or coordinating balancing resources and operating reserves across larger geographic boundaries.

Large scale grid integration of renewable energy sources

CERN Document Server

Moreno-Munoz, Antonio

2017-01-01

This book presents comprehensive coverage of the means to integrate renewable power, namely wind and solar power. It looks at new approaches to meet the challenges, such as increasing interconnection capacity among geographical areas, hybridisation of different distributed energy resources and building up demand response capabilities.

Renewable-energy applications in Egypt

International Nuclear Information System (INIS)

Hammad, M.A.

2005-01-01

The paper illustrates the main activities carried out concerning development and application of renewable-energy technologies in Egypt. Main attention is devoted to biogas technology, solar and wind energy technologies. The main constraints for implementation of renewable-energy technologies in Egypt and the activities carried out for its release are highlighted. The coordination between the Islamic and other developing countries is highly needed, to achieve marked progress in implementation of renewable energy and sustainable development. Establishment of a network for renewable energy among the Islamic countries can play an active role in these aspects. (author)

Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience, Summary for Policymakers

Energy Technology Data Exchange (ETDEWEB)

Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

2012-04-01

Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience, Summary for Policymakers

Energy Technology Data Exchange (ETDEWEB)

Cochran, Jaquelin [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bird, Lori [National Renewable Energy Lab. (NREL), Golden, CO (United States); Heeter, Jenny [National Renewable Energy Lab. (NREL), Golden, CO (United States); Arent, Douglas J. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

2012-04-30

Many countries - reflecting very different geographies, markets, and power systems - are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

Energy minimization strategies and renewable energy utilization for desalination: a review.

Science.gov (United States)

Subramani, Arun; Badruzzaman, Mohammad; Oppenheimer, Joan; Jacangelo, Joseph G

2011-02-01

Energy is a significant cost in the economics of desalinating waters, but water scarcity is driving the rapid expansion in global installed capacity of desalination facilities. Conventional fossil fuels have been utilized as their main energy source, but recent concerns over greenhouse gas (GHG) emissions have promoted global development and implementation of energy minimization strategies and cleaner energy supplies. In this paper, a comprehensive review of energy minimization strategies for membrane-based desalination processes and utilization of lower GHG emission renewable energy resources is presented. The review covers the utilization of energy efficient design, high efficiency pumping, energy recovery devices, advanced membrane materials (nanocomposite, nanotube, and biomimetic), innovative technologies (forward osmosis, ion concentration polarization, and capacitive deionization), and renewable energy resources (solar, wind, and geothermal). Utilization of energy efficient design combined with high efficiency pumping and energy recovery devices have proven effective in full-scale applications. Integration of advanced membrane materials and innovative technologies for desalination show promise but lack long-term operational data. Implementation of renewable energy resources depends upon geography-specific abundance, a feasible means of handling renewable energy power intermittency, and solving technological and economic scale-up and permitting issues. Copyright © 2011 Elsevier Ltd. All rights reserved.

RETHINKING THE FUTURE GRID: INTEGRATED NUCLEAR-RENEWABLE ENERGY SYSTEMS

Energy Technology Data Exchange (ETDEWEB)

S.M. Bragg-Sitton; R. Boardman

2014-12-01

The 2013 electricity generation mix in the United States consisted of ~13% renewables (hydropower, wind, solar, geothermal), 19% nuclear, 27% natural gas, and 39% coal. In the 2011 State of the Union Address, President Obama set a clean energy goal for the nation: “By 2035, 80 percent of America’s electricity will come from clean energy sources. Some folks want wind and solar. Others want nuclear, clean coal and natural gas. To meet this goal we will need them all.” The U.S. Department of Energy (DOE) Offices of Nuclear Energy (NE) and Energy Efficiency and Renewable Energy (EERE) recognize that “all of the above” means that we are called to best utilize all available clean energy sources. To meet the stated environmental goals for electricity generation and for the broader energy sector, there is a need to transform the energy infrastructure of the U.S. and elsewhere. New energy systems must be capable of significantly reducing environmental impacts in an efficient and economically viable manner while utilizing both hydrocarbon resources and clean energy generation sources. The U.S. DOE is supporting research and development that could lead to more efficient utilization of clean energy generation sources, including renewable and nuclear options, to meet both grid demand and thermal energy needs in the industrial sector. A concept being advanced by the DOE-NE and DOE-EERE is tighter coupling of nuclear and renewable energy sources in a manner that better optimizes energy use for the combined electricity, industrial manufacturing, and the transportation sectors. This integration concept has been referred to as a “hybrid system” that is capable of apportioning thermal and electrical energy to first meet the grid demand (with appropriate power conversion systems), then utilizing excess thermal and, in some cases, electrical energy to drive a process that results in an additional product. For the purposes of the present work, the hybrid system would

Talking Renewables; A renewable energy primer for everyone

Science.gov (United States)

Singh, Anirudh

2018-03-01

This book provides a clear and factual picture of the status of renewable energy and its capabilities today. The book covers all areas of renewable energy, starting from biomass energy and hydropower and proceeding to wind, solar and geothermal energy before ending with an overview of ocean energy. The book also explores how the technologies are being implemented today and takes a look at the future of renewable energy.

Integration of renewable energies into the power supply system; Integration erneuerbarer Energien in das Stromversorgungssystem

Energy Technology Data Exchange (ETDEWEB)

Neubarth, Juergen [e3 consult, Innsbruck (Austria)

2011-08-15

In contrast to the record breaking speed with which the German government presented its new energy concept in response to the Fukushima reactor disaster, the practical task of transforming our energy supply system will take decades. One of the greatest challenges involved in the energy turnaround will be that of integrating renewable energies into the power supply system. A holistic analysis and assessment of all aspects involved in this is therefore of utmost importance. Under the focal topic of its new publication ''Energie fuer Deutschland 2011'', Weltenergierat Deutschland e.V. presents a detailed summary of this challenge, thus providing a basis for further discussion. It shows that efficient integration of renewable energies must necessarily involve a combination of systems engineering and organisational measures.

A study of the integration of wind energy into the national energy systems of Denmark, Wales and Germany as illustrations of success stories for renewable energy

International Nuclear Information System (INIS)

Lindley, D.

1996-01-01

Of the approximately 2400 MW of wind turbines now installed in Europe, about 1850 MW are operational or under construction in Germany, Denmark and Wales. The rate of installation in the last three years and current developments in these three countries suggest that this implementation will continue until the end of the century at the rate of about 400 MW per annum. Clearly, wind energy is one of renewable energy's major success stories and it is the purpose of this study to attempt to identify the reasons for this success. By analysing the different conditions that have prevailed in the three European countries where implementation has been the greatest, the study seeks to identify the circumstances which need to be created in other countries and for other renewable energy technologies in order to accelerate their integration into the energy systems of Europe. (author)

Integrating renewable energy sources in the Portuguese power system

International Nuclear Information System (INIS)

Martins, Nuno; Cabral, Pedro; Azevedo, Helena

2012-01-01

The integration of large amounts of renewable energy is an important challenge for the future management of electric systems, since it affects the operation of the electric power system and the design of the transmission and distribution network infrastructure. This is specially due to the connection requirements of the renewable energy technologies, to the extension and adjustment of the grid infrastructure and to the identification of new solutions for operational reserve, in order to maintain the overall system flexibility and security. In this paper, the impact of high penetration of intermittent energy sources, expected in long term in the Portuguese Power System, is analysed and the operational reserve requirements to accomplish a reliable and reasonable electrical energy supply are identified. It was concluded that pumped storage power plants, special power plants with regulating capabilities, will have an important task to provide the operational reserve requirements of the Portuguese Power System. This technology assumes a fundamental role not only to ensure the adequate levels of security of supply but also to allow the maximum exploitation of the installed capacity in renewable energy sources. (authors)

An Integrated Risk Framework for Gigawatt-scale Deployments of Renewable Energy: The U.S. Wind Energy Case

Energy Technology Data Exchange (ETDEWEB)

Ram, B. [Energetics, Inc., Columbia, MD (United States)

2010-04-01

Assessing the potential environmental and human effects of deploying renewable wind energy requires a new way of evaluating potential environmental and human impacts. This paper explores an integrated risk framework for renewable wind energy siting decisionmaking.

Renewable energy

International Nuclear Information System (INIS)

Berghmans, J.

1994-01-01

Renewable energy sources have a small environmental impact and can be easily integrated within existing structures. Moreover, the use of renewable energy sources can contribute to achieve a zero emission of carbon dioxide by 2100, provided an efficient environmental policy during the next 40 years. This includes a correct pricing policy of renewable energy sources with respect to nuclear energy and fossil fuel. The latter energy sources have been favoured in the past. In addition, an open market policy, the restructuring or conversion of existing international energy institutes, and international treaties for the protection of the natural environment are needed in view of achieving the zero carbon dioxide emission objective. (A.S.)

Scaling Up Renewable Energy Generation: Aligning Targets and Incentives with Grid Integration Considerations, Greening The Grid

Energy Technology Data Exchange (ETDEWEB)

Katz, Jessica; Cochran, Jaquelin

2015-05-27

Greening the Grid provides technical assistance to energy system planners, regulators, and grid operators to overcome challenges associated with integrating variable renewable energy into the grid. This document, part of a Greening the Grid toolkit, provides power system planners with tips to help secure and sustain investment in new renewable energy generation by aligning renewable energy policy targets and incentives with grid integration considerations.

Climate-smart technologies. Integrating renewable energy and energy efficiency in mitigation and adaptation responses

Energy Technology Data Exchange (ETDEWEB)

Leal Filho, Walter; Mannke, Franziska; Schulte, Veronika [Hamburg Univ. of Applied Sciences (Germany). Faculty of Life Sciences; Mohee, Romeela; Surroop, Dinesh (eds.) [Mauritius Univ., Reduit (Mauritius). Chemical and Environmental Engineering Dept.

2013-11-01

Explores the links between climate change and technologies. Relates to the links between renewable energy and climate change. Documents and promotes a collection of experiences from island nations. Has a strong international focus and value to developing countries. The book addresses the perceived need for a publication with looks at both, climate smart technologies and the integration of renewable energy and energy efficiency in mitigation and adaptation responses. Based on a set of papers submitted as part of the fifth on-line climate conference (CLIMATE 2012) and a major conference on renewable energy on island States held in Mauritius in 2012, the book provides a wealth of information on climate change strategies and the role of smart technologies. The book has been produced in the context of the project ''Small Developing Island Renewable Energy Knowledge and Technology Transfer Network'' (DIREKT), funded by the ACP Science and Technology Programme, an EU programme for cooperation between the European Union and the ACP region.

ARCHITECTURE AND FUNCTIONALITY OF INTEGRATED INFORMATION SYSTEM FOR ANALYSIS OF POTENTIAL OF RENEWABLE ENERGY SOURCES

Directory of Open Access Journals (Sweden)

B. A. Tonkonogov

2017-01-01

Full Text Available The aim of the work was the development of the original architecture of an integrated information system for analysis of the potential of renewable energy sources. The required functionality of system has led to the solution of a number of problems in the development of appropriate software modules that implement methods, models and algorithms for assessing the energy potential and economic efficiency of the use of renewable energy sources (RES. This required the solution of the following problems: adaptation of existing and development of new methods for analyzing the potential of RES at various territorial levels using modern technologies of geographic information systems and computer technologies were accomplished; models for the assessment and calculation of the potential of renewable energy resources were developed; techniques for assessing of the economic effectiveness of decisions made for using of RES were adapted; architecture of the information system was developed and the choice of technologies and means for its implementation was made; algorithms of software modules and their interaction as a parts of the information system were developed. A distinctive feature of the architecture were flexibility and openness for the expansion and implementation of additional functionality, in particular the development of special algorithms and software modules for interacting with the database and a graphical Web-based user interface that provides the ability to work with cartographic information. The development and implementation of this system is a modern up-to-date scientific and practical task, the solution of which will create conditions for increased use of RES in RB and improving the country’s energy security. The results of conducted researches and completed developments can be used in the system of the Ministry of Natural Resources and Environmental Protection of RB, in particular for maintaining of the state cadastre of RES and making

Renewable Energy in Alaska

Energy Technology Data Exchange (ETDEWEB)

2013-03-01

This report examines the opportunities, challenges, and costs associated with renewable energy implementation in Alaska and provides strategies that position Alaska's accumulating knowledge in renewable energy development for export to the rapidly growing energy/electric markets of the developing world.

Integration of renewable energy plants based on generic data models in the energy management of a virtual power plant; Integration von erneuerbaren Energieanlagen auf Basis generischer Datenmodelle in das Energiemanagement eines virtuellen Kraftwerks

Energy Technology Data Exchange (ETDEWEB)

Wickert, Manuel; Slaby, Wolfgang; Hochloff, Patrick [Fraunhofer Institut fuer Windenergie und Energiesystemtechnik (IWES), Kassel (Germany); Winter, Martin [Siemens AG, Muenchen (Germany). Corporate Technology

2012-07-01

The integration of different types of energy resources manufactured by different vendors is one of the main challenges for virtual power plants. One of the important problems is a highly heterogeneous standardization environment for decentralized renewable energy resources. On the one hand proprietary solutions are implemented for some types of energy resources. In a future smart grid it is getting more and more important to handle decentralized energy generation. The project RegModHarz researched the dynamic integration of energy resources in virtual power plants based on generic data models. This paper introduces a concept for the integration of heterogeneous energy resources into the energy management of a virtual power plant using a uniform data model. On the assumption of a market-oriented virtual power plant the main attributes of this data model are generally identified and afterwards explained by examples. The capability of this data model is shown in a comprehensive field test with different renewable energy resources. (orig.)

Promotion of renewable energy in some MENA region countries

Science.gov (United States)

Abdeladim, K.; Bouchakour, S.; Arab, A. Hadj; Ould Amrouche, S.; Yassaa, N.

2018-05-01

In recent years Middle East and North African (MENA) countries, are showing efforts about the integration of renewable electricity into their power markets. Indeed, installations were already achieved and renewable energy programs were launched. The Algerian program remains one of the most ambitious with its installation capacity up to 22GW of power generating to be installed by 2030. More than 60 % of the total capacity is planned to be solar photovoltaic (PV). Like Algeria, Morocco has integrated development project with a target to develop by 2020 a 2000 MW capacity of electricity production from solar energy. The Tunisian government has launched its first phase of the renewable power generation program, with an objective to install 1,000 MW of renewable power capacity over the 2017-2020 periods, where 650 MW of the total capacity is planned to be solar and 350 MW wind. One of the leading Arab country in wind energy, these recent years is Egypt, with its more than 700 megawatt of operational power generation plants and has launched significant projects development in solar energy. Regarding Jordan, the government has taken different steps in this field of energy with a Strategy plan 2007-2020, by implementing a large scale of projects on renewable energy sources, with an objective to cover 10% of the country’s energy supply, from renewable sources by the year 2020. Concerning Lebanon, the country is looking to attain an integration of 12 % by 2020.

Hydrogen, fuel cells and renewable energy integration in islands

International Nuclear Information System (INIS)

Bauen, A.; Hart, D.; Foradini, F.; Hart, D.

2002-01-01

Remote areas such as islands rely on costly and highly polluting diesel and heavy fuel oil for their electricity supply. This paper explored the opportunities for exploiting economically and environmentally viable renewable energy sources, in particular hydrogen storage, on such islands. In particular, this study focused on addressing the challenge of matching energy supply with demand and with technical issues regarding weak grids that are hindered with high steady state voltage levels and voltage fluctuations. The main technical characteristics of integrated renewable energy and hydrogen systems were determined by modelling a case study for the island of El Hierro (Canary Islands). The paper referred to the challenges regarding the technical and economic viability of such systems and their contribution to the economic development of remote communities. It was noted that energy storage plays an important role in addressing supply and demand issues by offering a way to control voltage and using surplus electricity at times of low load. Electrical energy can be stored in the form of potential or chemical energy. New decentralized generation technologies have also played a role in improving the energy efficiency of renewable energy sources. The feasibility of using hydrogen for energy storage was examined with particular reference to fuel-cell based energy supply in isolated island communities. 4 refs., 5 figs

International Requirements for Large Integration of Renewable Energy Sources

DEFF Research Database (Denmark)

Molina-Garcia, Angel; Hansen, Anca Daniela; Muljadi, Ed

2017-01-01

Most European countries have concerns about the integration of large amounts of renewable energy sources (RES) into electric power systems, and this is currently a topic of growing interest. In January 2008, the European Commission published the 2020 package, which proposes committing the European...... Union to a 20% reduction in greenhouse gas emissions, to achieve a target of deriving 20% of the European Union's final energy consumption from renewable sources, and to achieve 20% improvement in energy efficiency both by the year 2020 [1]. Member states have different individual goals to meet...... these overall objectives, and they each need to provide a detailed roadmap describing how they will meet these legally binding targets [2]. At this time, RES are an indispensable part of the global energy mix, which has been partially motivated by the continuous increases in hydropower as well as the rapid...

The renewable energies; Les energies renouvelables

Energy Technology Data Exchange (ETDEWEB)

NONE

2004-07-01

The renewable energies are everywhere but also irregular. Thus they need savings in our energy consumptions. This document provides information, such as economics, capacity and implementation, on the following renewable energies: the wind power, the solar energy, the photovoltaic energy, the biogas, the geothermal energy, the hydroelectricity, the wood. It also presents a state of the art and examples of bio-climatic architecture. (A.L.B.)

Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience

Energy Technology Data Exchange (ETDEWEB)

Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

2012-04-01

Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This study documents the diverse approaches to effective integration of variable renewable energy among six countries -- Australia (South Australia), Denmark, Germany, Ireland, Spain, and the United States (Western region-Colorado and Texas)-- and summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. Each country has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. The ability to maintain a broad ecosystem perspective, to organize and make available the wealth of experiences, and to ensure a clear path from analysis to enactment should be the primary focus going forward.

Rethinking the Future Grid: Integrated Nuclear Renewable Energy Systems: Preprint

Energy Technology Data Exchange (ETDEWEB)

Bragg-Sitton, S. M.; Boardman, R.; Ruth, M.; Zinaman, O.; Forsberg, C.

2015-01-01

The U.S. DOE is supporting research and development that could lead to more efficient utilization of clean energy generation sources, including renewable and nuclear options, to meet both grid demand and thermal energy needs in the industrial sector. One concept under consideration by the DOE-NE and DOE-EERE is tighter coupling of nuclear and renewable energy sources in a manner that better optimizes energy use for the combined electricity, industrial manufacturing, and transportation sectors. This integration concept has been referred to as a 'hybrid system' that is capable of apportioning thermal and electrical energy to first meet the grid demand (with appropriate power conversion systems), then utilizing excess thermal and, in some cases, electrical energy to drive a process that results in an additional product.

Considerations in implementing integrated biomass energy systems in developing countries

International Nuclear Information System (INIS)

Perlack, R.D.; Ranney, J.W.

1993-01-01

Biomass energy is emerging as a real option for satisfying power needs in developing countries. Experience has shown improvements in GDP are directly linked to increased consumption of energy. Biomass energy can also be environmentally and developmentally beneficial where it will be both grown and used. Biomass production can offset deforestation, reduce soil erosion, increase rural employment, and stimulate development. Moreover, when biomass is grown renewably there is no net buildup of atmospheric carbon. Issues and barriers associated with implementing integrated biomass energy systems in developing countries are discussed. An integrated biomass energy system is dependent on sustainably grown and managed energy crops, supportive of rural development, and environmentally beneficial, adapted to local conditions; takes advantage of by- and co-products and uses conversion technologies that have been optimized for biomass. A preliminary evaluation of a biomass to electricity project relying on plantation grown feedstocks in Southwest China indicates that biomass could be grown and converted to electricity at costs lower than alternatives and yield an internal rate of return of about 15%. The IRR based on a social and environmental benefits are substantial and investment in the facility is well-justified. However, assessing biomass energy systems is exceedingly complex. Considerations are grouped into biomass production, biomass logistics and transport, and biomass conversion. Implementation requires considerations of energy and economics, institutional and social issues, and environmental issues. The conclusion that such a project would be viable in rural China is shadowed by many site-specific circumstances and highlights the need for systematic and integrated appraisal

Implementation of Auctions for Renewable Energy Support in Poland: a Case Study

DEFF Research Database (Denmark)

Kitzing, Lena; Wendring, Paul

This report deals with the planned implementation of auctions for Renewable Energy support in Poland from 2016 onwards. The report focuses on the implementation process and provides the necessary background information. Furthermore the planned auction design is described and discussed both from...... criteria, of appropriate auction formats and suitable design elements for RES auctions, as well as the analysis of past auction implementations....

The integration of renewable energy in the French electricity system: what challenges for optimization?

International Nuclear Information System (INIS)

Mathieu, Mathilde; Ruedinger, Andreas; Pescia, Dimitri

2016-01-01

demand-side potential for flexibility. On the other hand, the deployment of RES calls for a considering of the size and operational management of the nuclear fleet in the future, between a traditional function as baseload or more flexible load-following. The implementation of market premia aims at facilitating the economic integration of RES by making producers more responsible. It also represents an interesting potential to optimize the RES technical integration. Nevertheless, a careful calibration of the mechanism is necessary to limit the impact of this change in regulation on the cost and achievement of the targets for electric renewable energy development

Risk analysis for renewable energy projects due to constraints arising

Science.gov (United States)

Prostean, G.; Vasar, C.; Prostean, O.; Vartosu, A.

2016-02-01

Starting from the target of the European Union (EU) to use renewable energy in the area that aims a binding target of 20% renewable energy in final energy consumption by 2020, this article illustrates the identification of risks for implementation of wind energy projects in Romania, which could lead to complex technical implications, social and administrative. In specific projects analyzed in this paper were identified critical bottlenecks in the future wind power supply chain and reasonable time periods that may arise. Renewable energy technologies have to face a number of constraints that delayed scaling-up their production process, their transport process, the equipment reliability, etc. so implementing these types of projects requiring complex specialized team, the coordination of which also involve specific risks. The research team applied an analytical risk approach to identify major risks encountered within a wind farm project developed in Romania in isolated regions with different particularities, configured for different geographical areas (hill and mountain locations in Romania). Identification of major risks was based on the conceptual model set up for the entire project implementation process. Throughout this conceptual model there were identified specific constraints of such process. Integration risks were examined by an empirical study based on the method HAZOP (Hazard and Operability). The discussion describes the analysis of our results implementation context of renewable energy projects in Romania and creates a framework for assessing energy supply to any entity from renewable sources.

A novel integrated renewable energy system modelling approach, allowing fast FPGA controller prototyping

DEFF Research Database (Denmark)

Teodorescu, Remus; Ruiz, Alberto Parera; Cirstea, Marcian

2008-01-01

The paper describes a new holistic approach to the modeling of integrated renewable energy systems. The method is using the DK5 modeling/design environment from Celoxica and is based on the new Handel-C programming language. The goal of the work carried out was to achieve a combined model...... containing a Xilinx Spartan II FPGA and was successfully experimentally tested. This approach enables the design and fast hardware implementation of efficient controllers for Distributed Energy Resource (DER) hybrid systems....... of a photovoltaic energy system and a wind power system, which would allow an optimized holistic digital control system design, followed by rapid prototyping of the controller into a single Field Programmable Gate Array (FPGA). Initially, the system was simulated using Matlab / Simulink, to create a reference...

Higher renewable energy integration into the existing energy system of Finland – Is there any maximum limit?

International Nuclear Information System (INIS)

Zakeri, Behnam; Syri, Sanna; Rinne, Samuli

2015-01-01

Finland is to increase the share of RES (renewable energy sources) up to 38% in final energy consumption by 2020. While benefiting from local biomass resources Finnish energy system is deemed to achieve this goal, increasing the share of other intermittent renewables is under development, namely wind power and solar energy. Yet the maximum flexibility of the existing energy system in integration of renewable energy is not investigated, which is an important step before undertaking new renewable energy obligations. This study aims at filling this gap by hourly analysis and comprehensive modeling of the energy system including electricity, heat, and transportation, by employing EnergyPLAN tool. Focusing on technical and economic implications, we assess the maximum potential of different RESs separately (including bioenergy, hydropower, wind power, solar heating and PV, and heat pumps), as well as an optimal mix of different technologies. Furthermore, we propose a new index for assessing the maximum flexibility of energy systems in absorbing variable renewable energy. The results demonstrate that wind energy can be harvested at maximum levels of 18–19% of annual power demand (approx. 16 TWh/a), without major enhancements in the flexibility of energy infrastructure. With today's energy demand, the maximum feasible renewable energy for Finland is around 44–50% by an optimal mix of different technologies, which promises 35% reduction in carbon emissions from 2012's level. Moreover, Finnish energy system is flexible to augment the share of renewables in gross electricity consumption up to 69–72%, at maximum. Higher shares of RES calls for lower energy consumption (energy efficiency) and more flexibility in balancing energy supply and consumption (e.g. by energy storage). - Highlights: • By hourly analysis, we model the whole energy system of Finland. • With existing energy infrastructure, RES (renewable energy sources) in primary energy cannot go beyond 50%. �

Capacity Development and Strengthening for Energy Policy formulation and implementation of Sustainable Energy Projects in Indonesia CASINDO. Deliverable No. 13. Integration of Renewable Energy Technologies in the national curriculum SPECTRUM

Energy Technology Data Exchange (ETDEWEB)

Kamphuis, E. [ETC Nederland, Leusden (Netherlands); Permana, I. [Technical Education Development Centre TEDC, Bandung (Indonesia)

2011-11-15

The overall objective of the CASINDO programme is to establish a self-sustaining and self-developing structure at both the national and regional level to build and strengthen human capacity to enable the provinces of North Sumatra, Yogyakarta, Central Java, West Nusa Tenggara and Papua to formulate sound policies for renewable energy and energy efficiency and to develop and implement sustainable energy projects. This report focuses on the achievements for settling a national curriculum for Renewable Energy Technologies (RET) within the framework of national programme SPECTRUM, which includes all curricula of the medium technical schools in Indonesia.

Implementation of 16% renewable energy in 2020; Invulling van 16% hernieuwbare energie in 2020

Energy Technology Data Exchange (ETDEWEB)

Winkel, T.; De Visser, E. [Ecofys, Utrecht (Netherlands); Lensink, S. [ECN Beleidsstudies, Petten (Netherlands)

2013-05-15

The first part deals with the numerical implementation of the 16% target: the potential contribution of the various renewable energy options (and energy conservation) to the achievement of this objective and the underlying principles. Part 1 of this report was jointly prepared by Ecofys and ECN. Part 2 of this report provides an overview of the current bottlenecks, measures and roles for the Dutch government and the provinces to realize the 2020 renewable energy target [Dutch] Het eerste deel heeft betrekking op de cijfermatige invulling van de 16% doelstelling: de potentiele bijdrage van de verschillende hernieuwbare energie opties (en energiebesparing) aan het halen van deze doelstelling en de uitgangspunten die hieraan ten grondslag liggen. Ecofys en ECN hebben deel I gezamenlijk opgesteld. Deel II van deze rapportage geeft een overzicht van de huidige knelpunten, maatregelen en rollen voor Rijk en Provincie om het 2020 doel voor hernieuwbare energie te bereiken.

Conference on support mechanisms evolution and renewable energies integration in France and in Germany markets

International Nuclear Information System (INIS)

Praetorius, Barbara; Cruciani, Michel; Schwarz, Virginie; Nabe, Christian; Mayer, Joerg; Vogel, Wolfram; Abegg, Janosch; Lioret, Sonia; Avedissian, Franck; Cosse, Julien; Woodhouse, Stephen; Bradbury, Simon; Mollard, Matthieu; Solal, Lucie; Nodari, Antonio

2015-01-01

The French-German office for Renewable energies (OFAEnR) organised a conference on the support mechanisms evolution and the renewable energies integration in France and in Germany markets. In the framework of this French-German exchange of experience, participants exchanged views on the current support mechanisms in both countries and on their forthcoming legal modifications. The legal framework of direct renewable energy selling in the German market and the impacts and challenges of this model were addressed as well. Technical aspects of auction sales of electricity were approached too and illustrated with experience feedbacks from direct selling operators. This document brings together the available presentations (slides) made during this event: 1 - Tenders for Renewable energy and the German Energiewende - Perspectives, challenges, debates (Barbara Praetorius); 2 - Promotion of energy from renewable sources - A short analysis of the French public policy 2000 -2014 (Michel Cruciani); 3 - Support schemes for renewables in France and their evolution as foreseen in the energy transition law (Virginie Schwarz); 4 - Direct electricity selling on the wholesale market: legal framework and perspective - a French-German comparison (Christian Nabe); 5 - Self-consumption and power purchase Business framework in Germany (Joerg Mayer); 6 - Successful Integration of Renewable energies in the Market: the Role of the Power exchange (Wolfram Vogel); 7 - Earn money and do good by marketing renewables (Janosch Abegg); 8 - Proposals for a new electricity market design (Sonia Lioret)

Dynamic pricing based on a cloud computing framework to support the integration of renewable energy sources

Directory of Open Access Journals (Sweden)

Rajeev Thankappan Nair

2014-12-01

Full Text Available Integration of renewable energy sources into the electric grid in the domestic sector results in bidirectional energy flow from the supply side of the consumer to the grid. Traditional pricing methods are difficult to implement in such a situation of bidirectional energy flow and they face operational challenges on the application of price-based demand side management programme because of the intermittent characteristics of renewable energy sources. In this study, a dynamic pricing method using real-time data based on a cloud computing framework is proposed to address the aforementioned issues. The case study indicates that the dynamic pricing captures the variation of energy flow in the household. The dynamic renewable factor introduced in the model supports consumer oriented pricing. A new method is presented in this study to determine the appropriate level of photovoltaic (PV penetration in the distribution system based on voltage stability aspect. The load flow study result for the electric grid in Kerala, India, indicates that the overvoltage caused by various PV penetration levels up to 33% is within the voltage limits defined for distribution feeders. The result justifies the selected level of penetration.

Efficient integration of renewable energies in the German electricity market; Effiziente Integration erneuerbarer Energien in den deutschen Elektrizitaetsmarkt

Energy Technology Data Exchange (ETDEWEB)

Nabe, C.A.

2006-07-01

Liberalisation of the electricity sector aims to carry out coordination tasks within the system by markets and market prices. This study examines how markets need to be designed to carry out coordination tasks caused by integration of renewable energies in an efficient way. This question is applied to the German electricity system and recommendations are derived from identified deficits. The examination uses the structure-conduct-performance approach of industrial organisation economics. Integration of renewable energies does not result in entirely new coordination tasks but complicates those that exist in any electricity supply system. Within the short-term coordination tasks provision and operation of reserve capacity is affected by renewable energies. Long-term coordination means that the relation between fixed and variable costs of generators as well as generator flexibility has to be adjusted to the characteristics of renewable energies. The relevant short-term coordination task with the network is congestion management. In the long run costs of grid expansion and permanent congestion management have to be balanced. For the execution of short-run coordination tasks integrated and centralised market architectures are superior to decentralised architectures. The increase of short-term coordination tasks due to renewable energies caused by inflexibilities of consumers and conventional generators results in more information that has to be considered. By centralising that information in one market, an increase in productive efficiency can be obtained. In Germany the increased coordination tasks are determined by the integration of wind generators into the electricity system. The present German market architecture results in inefficiencies in short-term coordination. This is demonstrated by an analysis of procedural rules and prices of the ancillary service markets. They demonstrate that market performance is low and significant deviations from competitive prices

Marine Renewable Energy in the Mediterranean Sea: Status and Perspectives

Directory of Open Access Journals (Sweden)

Takvor H. Soukissian

2017-09-01

Full Text Available In this work, an extended overview of the marine renewable energy in the Mediterranean Sea is provided as regards current status, potential problems, challenges, and perspectives of development. An integrated and holistic approach is necessary for the economic viability and sustainability of marine renewable energy projects; this approach comprises three different frameworks, not always aligned, i.e., geotechnical/engineering, socio-economic, and environmental/ecological frameworks. In this context, the geomorphological, climatological, socio-economic, and environmental/ecological particularities of the Mediterranean basin are discussed, as they constitute key issues of the spatial context in which marine renewable energy projects are to be implemented. General guidelines for the sustainable development of marine renewable energy in the Mediterranean are also provided.

Marine renewable energy policy in China and recommendations for improving implementation

Science.gov (United States)

Wang, Haifeng; Wang, Ji; Liu, Yuxin; Chen, Libo

2018-02-01

Renewable energy is the effective solution for the harmonious coexistence of human and environment as well as for the sustainable development. Marine renewable energy as one of the renewable energies, potentially offer fewer environmental risks and thus community acceptance than other renewable energy developments. Government support is the key and initial power for developing marine renewable energy. To promote the development and utilization of marine renewable energy, the Chinese government has established the special funding plan for marine renewable energy, and released “the 13th Five-years Plan (2016-2020) for marine renewable energy”. This paper describes the mechanisms established by the marine renewable Energy policy in China, and provides a comparative analysis of the Chinese marine renewable energy policy framework. We provides some policy recommendations for future development of marine renewable energy in China.

Dynamic state estimation for distribution networks with renewable energy integration

NARCIS (Netherlands)

Nguyen, P.H.; Venayagamoorthy, G.K.; Kling, W.L.; Ribeiro, P.F.

2013-01-01

The massive integration of variable and unpredictable Renewable Energy Sources (RES) and new types of load consumptions increases the dynamic and uncertain nature of the electricity grid. Emerging interests have focused on improving the monitoring capabilities of network operators so that they can

Spatial mapping of renewable energy potential

Energy Technology Data Exchange (ETDEWEB)

Ramachandra, T.V. [Centre for Sustainable Technologies, Indian Institute of Science, Bangalore (India); Energy Research Group, CES RNO 215, Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012 (India); Shruthi, B.V. [Energy Research Group, CES RNO 215, Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012 (India)

2007-09-15

An energy resource that is renewed by nature and whose supply is not affected by the rate of consumption is often termed as renewable energy. The need to search for renewable, alternate and non-polluting sources of energy assumes top priority for self-reliance in the regional energy supply. This demands an estimation of available energy resources spatially to evolve better management strategies for ensuring sustainability of resources. The spatial mapping of availability and demand of energy resources would help in the integrated regional energy planning through an appropriate energy supply-demand matching. This paper discusses the application of Geographical Information System (GIS) to map the renewable energy potential talukwise in Karnataka State, India. Taluk is an administrative division in the federal set-up in India to implement developmental programmes like dissemination of biogas, improved stoves, etc. Hence, this paper focuses talukwise mapping of renewable energy (solar, wind, bioenergy and small hydroenergy) potential for Karnataka using GIS. GIS helps in spatial and temporal analyses of the resources and demand and also aids as Decision Support System while implementing location-specific renewable energy technologies. Regions suitable for tapping solar energy are mapped based on global solar radiation data, which provides a picture of the potential. Coastal taluks in Uttara Kannada have higher global solar radiation during summer (6.31 kWh/m{sup 2}), monsoon (4.16 kWh/m{sup 2}) and winter (5.48 kWh/m{sup 2}). Mapping of regions suitable for tapping wind energy has been done based on wind velocity data, and it shows that Chikkodi taluk, Belgaum district, has higher potential during summer (6.06 m/s), monsoon (8.27 m/s) and winter (5.19 m/s). Mysore district has the maximum number of small hydropower plants with a capacity of 36 MW. Talukwise computation of bioenergy availability from agricultural residue, forest, horticulture, plantation and livestock

Implementation of renewable energy technologies - Opportunities and barriers. Ghana country study

Energy Technology Data Exchange (ETDEWEB)

Edjekumhene, I.; Atakora, S.B.; Atta-Konadu, R.; Brew-Hammond, A. [Kumasi Inst. og Technology and Environment (Ghana)

2001-07-01

This report presents the experience of Ghana in the development, utilisation and promotion of Renewable Energy Technologies (RETs). The report gives a general overview of the state of RETs, describes past/existing institutional, regulatory and policy framework, identifies key barriers to and opportunities for RETs, and recommends directional changes needed to remove barriers and promote wide-scale adoption of RETs in Ghana. A total of eight RETs - biomass-fired dryers, sawdust stoves, sawdust briquette, biogas, solar crop dryer, solar water heater, solar water pump and small hydro power - are covered in the report. Analyses of barriers to the eight RETs are carried out using a framework approach that categorises barriers into socio-technical, economic and crosscutting barriers. Financial analyses, as opposed to economic analyses, have been carried out for all the selected RETs. The report also incorporates stake holders' perspectives and views on barriers and how they can be removed. Ghana is endowed with several renewable energy resources like solar radiation, small hydro, biomass, and wind. Exploitation of Ghana's renewable energy resources has been carried out under two main policy regimes - PND Law 62 (1983) and the Energy Sector Development Programme (ESDP). Several measures and instruments have been employed in the implementation of renewable energy policies. The main measures used are research and development, information and eduction, and some normative measures (like the passing of PNDC Law 62 and the Energy Commission Law). Some economic instruments, such as subsidies, taxes, pricing, financing and duty waiver/reduction, have been used as well but only to a limited extent. The effective development, implementation and dissemination of all the RETs studied are hampered by several barriers, which can be grouped into three main categories - Socio-technical barriers, economic barriers and crosscutting barriers. Socio-technical barriers refer to

Implementation of renewable energy technologies - Opportunities and barriers. Ghana country study

Energy Technology Data Exchange (ETDEWEB)

Edjekumhene, I; Atakora, S B; Atta-Konadu, R; Brew-Hammond, A [Kumasi Inst. og Technology and Environment (Ghana)

2001-07-01

This report presents the experience of Ghana in the development, utilisation and promotion of Renewable Energy Technologies (RETs). The report gives a general overview of the state of RETs, describes past/existing institutional, regulatory and policy framework, identifies key barriers to and opportunities for RETs, and recommends directional changes needed to remove barriers and promote wide-scale adoption of RETs in Ghana. A total of eight RETs - biomass-fired dryers, sawdust stoves, sawdust briquette, biogas, solar crop dryer, solar water heater, solar water pump and small hydro power - are covered in the report. Analyses of barriers to the eight RETs are carried out using a framework approach that categorises barriers into socio-technical, economic and crosscutting barriers. Financial analyses, as opposed to economic analyses, have been carried out for all the selected RETs. The report also incorporates stake holders' perspectives and views on barriers and how they can be removed. Ghana is endowed with several renewable energy resources like solar radiation, small hydro, biomass, and wind. Exploitation of Ghana's renewable energy resources has been carried out under two main policy regimes - PND Law 62 (1983) and the Energy Sector Development Programme (ESDP). Several measures and instruments have been employed in the implementation of renewable energy policies. The main measures used are research and development, information and eduction, and some normative measures (like the passing of PNDC Law 62 and the Energy Commission Law). Some economic instruments, such as subsidies, taxes, pricing, financing and duty waiver/reduction, have been used as well but only to a limited extent. The effective development, implementation and dissemination of all the RETs studied are hampered by several barriers, which can be grouped into three main categories - Socio-technical barriers, economic barriers and crosscutting barriers. Socio-technical barriers refer to resource

An integrated renewable energy park approach for algal biofuel production in United States

International Nuclear Information System (INIS)

Subhadra, Bobban; Edwards, Mark

2010-01-01

Algal biomass provides viable third generation feedstock for liquid transportation fuel that does not compete with food crops for cropland. However, fossil energy inputs and intensive water usage diminishes the positive aspects of algal energy production. An integrated renewable energy park (IREP) approach is proposed for aligning renewable energy industries in resource-specific regions in United States for synergistic electricity and liquid biofuel production from algal biomass with net zero carbon emissions. The benefits, challenges and policy needs of this approach are discussed.

Renewable Energy Marketplace

Science.gov (United States)

Ghadimian, Vachik

The renewable energy sector is evolving, and today, renewable energy has become a viable alternative for many facilities. Because this sector is in its infancy stage, lack of experience has resulted in failing solar projects. This project involves the design and implementation of a functioning web application that streamlines and automates the planning, risk assessment and financing of a solar development project. The three key stakeholders, the host facility, solar installer and financier are seamlessly integrated into a single marketplace. By designing a project development workflow, projects are vetted early on and terminated if deemed infeasible, saving time and resources. By risk assessing the project using the proposed scoring model, one can inherit more confident investors. The project scoring model also serves as a debt rating system, where investors can measure the risk/rewards. The platform will also serve as a communication medium between the three stakeholders. Besides storing documents like engineering drawings, permits, etc., the platform auto-generates all necessary transactional documents, legal documents and agreements among the three stakeholders.

A knowledge-based approach to the design of integrated renewable energy systems

Energy Technology Data Exchange (ETDEWEB)

Ramakumar, R.; Abouzahr, I. (Oklahoma State Univ., Stillwater, OK (United States). Engineering Energy Lab.); Ashenayi, K. (Dept. of Electrical Engineering, Univ. of Tulsa, Tulsa, OK (United States))

1992-12-01

Integrated Renewable Energy Systems (IRES) utilize two or more renewable energy resources and end-use technologies to supply a variety of energy needs, often in a stand-alone mode. A knowledge-based design approach that minimizes the total capital cost at a pre-selected reliability level is presented. The reliability level is quantified by the loss of power supply probability (LPSP). The procedure includes some resource-need matching based on economics, the quality of energy needed, and the characteristics of the resource. A detailed example is presented in this paper and discussed to illustrate the usefullness of the design approach.

Hybrid Hydro Renewable Energy Storage Model

Science.gov (United States)

Dey, Asit Kr

2018-01-01

This paper aims at presenting wind & tidal turbine pumped-storage solutions for improving the energy efficiency and economic sustainability of renewable energy systems. Indicated a viable option to solve problems of energy production, as well as in the integration of intermittent renewable energies, providing system flexibility due to energy load’s fluctuation, as long as the storage of energy from intermittent sources. Sea water storage energy is one of the best and most efficient options in terms of renewable resources as an integrated solution allowing the improvement of the energy system elasticity and the global system efficiency.

Scheduling Model for Renewable Energy Sources Integration in an Insular Power System

Directory of Open Access Journals (Sweden)

Gerardo J. Osório

2018-01-01

Full Text Available Insular power systems represent an asset and an excellent starting point for the development and analysis of innovative tools and technologies. The integration of renewable energy resources that has taken place in several islands in the south of Europe, particularly in Portugal, has brought more uncertainty to production management. In this work, an innovative scheduling model is proposed, which considers the integration of wind and solar resources in an insular power system in Portugal, with a strong conventional generation basis. This study aims to show the benefits of increasing the integration of renewable energy resources in this insular power system, and the objectives are related to minimizing the time for which conventional generation is in operation, maximizing profits, reducing production costs, and consequently, reducing greenhouse gas emissions.

Integration of renewable energy sources for a sustainable energy policy at Djibouti

International Nuclear Information System (INIS)

Aye, Fouad Ahmed

2009-01-01

the level of the tidal energy, a not yet estimated potential exists and could be exploited at the level of the pass of Goubbet. The energy planning that we propose for the average length-term bases on the integration of one of the potential renewable energies and more particularly the noblest of them: the geothermal energy. Indeed, the geothermal energy possesses advantages which the other forms of renewable energies do not have: it is a basic energy, independent from the climate, susceptible to be exploited at the same time for the production of the heat and the electric production. The electric plan which we propose is the following one: on the horizon 2015, we consider that the electric request will be situated near 165 MW. Therefore, we recommend 74,5 % of fossil fuels (with a substitutable option in warm period by the electricity imported from Ethiopia to a total value of 30,3 %) and 25,5 % of renewable energies (including 18,2 % of geothermal energy, 6,8 % of wind energy and 0,5 % of solar energy). (author)

An integrated renewable energy park approach for algal biofuel production in United States

Energy Technology Data Exchange (ETDEWEB)

Subhadra, Bobban [Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM 87131 (United States); Edwards, Mark [Marketing and Sustainability, W.P. Carey School of Business, Arizona State University, Tempe, AZ 85282 (United States)

2010-09-15

Algal biomass provides viable third generation feedstock for liquid transportation fuel that does not compete with food crops for cropland. However, fossil energy inputs and intensive water usage diminishes the positive aspects of algal energy production. An integrated renewable energy park (IREP) approach is proposed for aligning renewable energy industries in resource-specific regions in United States for synergistic electricity and liquid biofuel production from algal biomass with net zero carbon emissions. The benefits, challenges and policy needs of this approach are discussed. (author)

Integrating High Levels of Variable Renewable Energy into Electric Power Systems

Energy Technology Data Exchange (ETDEWEB)

Kroposki, Benjamin D. [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-08-01

As more variable renewable energy is integrated into electric power systems, there are a range of challenges and solutions to accommodating very high penetration levels. This presentation highlights some of the recent research in this area.

Implementation of the Third Energy Package and Renewable Energy Sources on Croatian Liberalised Market

International Nuclear Information System (INIS)

Toljan, I.

2016-01-01

The Croatian Third Energy Package was adopted in 2012 and its implementation in the previous period until today has accelerated changes in all areas of Croatian energy sector. The content of The EU's Third Energy Package was made in two directives and three regulations. Directives are implemented into national legislation of EU Member States (they choose the methods). Regulations are implemented directly in the entire EU. The main goal is to establish a unique electricity and gas market with market prices (or lower) and high safety and public service standards. Croatia began with incentives for generation from renewable energy sources in 2004 and by the end of this year, the first contract in that system (wind power plant Ravne on Pag island) will end. The question that presents itself is where and how will the owner sell electricity from now on. Current market suppliers as well as the new organisation in Croatian energy sector, Croatian Power Exchange, are both realistic options. Balancing market led by Croatian TSO is becoming bigger and participates in the business because of the higher amount of installed power connected to the power grid (mostly wind power plants). Can Croatian Transmission Operator still guarantee safe operational planning as before (the last blackout happened 10 years ago)? The existing electricity and gas market design doesn't satisfy its participants any more so an adjustment to new facts of a free market is necessary (power exchange, no more stimulations for renewable sources). What changes should be made in legislation so that the free market can develop and be harmonised with the European market? Decarbonization and digitalisation are a base of European energy policy but they are still waiting for a wider and stronger application in Croatia, is the current legislation enough? With these analysis the paper contributes to the learnings about the implementation of The Third Energy Package in Croatia and a unique energy policy in the EU.(author).

Sustainability of algal biofuel production using integrated renewable energy park (IREP) and algal biorefinery approach

International Nuclear Information System (INIS)

Subhadra, Bobban G.

2010-01-01

Algal biomass can provide viable third generation feedstock for liquid transportation fuel. However, for a mature commercial industry to develop, sustainability as well as technological and economic issues pertinent to algal biofuel sector must be addressed first. This viewpoint focuses on three integrated approaches laid out to meet these challenges. Firstly, an integrated algal biorefinery for sequential biomass processing for multiple high-value products is delineated to bring in the financial sustainability to the algal biofuel production units. Secondly, an integrated renewable energy park (IREP) approach is proposed for amalgamating various renewable energy industries established in different locations. This would aid in synergistic and efficient electricity and liquid biofuel production with zero net carbon emissions while obviating numerous sustainability issues such as productive usage of agricultural land, water, and fossil fuel usage. A 'renewable energy corridor' rich in multiple energy sources needed for algal biofuel production for deploying IREPs in the United States is also illustrated. Finally, the integration of various industries with algal biofuel sector can bring a multitude of sustainable deliverables to society, such as renewable supply of cheap protein supplements, health products and aquafeed ingredients. The benefits, challenges, and policy needs of the IREP approach are also discussed.

Renewable energy delivery systems and methods

Science.gov (United States)

Walker, Howard Andrew

2013-12-10

A system, method and/or apparatus for the delivery of energy at a site, at least a portion of the energy being delivered by at least one or more of a plurality of renewable energy technologies, the system and method including calculating the load required by the site for the period; calculating the amount of renewable energy for the period, including obtaining a capacity and a percentage of the period for the renewable energy to be delivered; comparing the total load to the renewable energy available; and, implementing one or both of additional and alternative renewable energy sources for delivery of energy to the site.

Use of derivative instruments to integrate renewable energies into the electricity market; Einsatz derivativer Instrumente zur Integration erneuerbarer Energien in den Strommarkt

Energy Technology Data Exchange (ETDEWEB)

Hartmann, Kilian [Hochschule Aschaffenburg (Germany). Fakultaet fuer Ingenieurwissenschaften; Nelles, Michael [Rostock Univ. (Germany). Agrar- und Umweltwissenschaftliche Fakultaet; Candra, Dodiek Ika

2017-08-01

The implementation of renewable energies to the electricity market is inefficient and expensive with current measures. Further these measures are prejudicial for the existing energy-only-market. The combination of fluctuating and controllable renewable powers in virtual power plants enables the marketing of this power as a derivate on the future market. Thus would relieve the spot market and stabilize pricing on both markets. Subsequently the renewable energy obligation will reduce and renewable energies could be marketed as secured power.

Renewable Energy Policy Fact sheet - Sweden

International Nuclear Information System (INIS)

2017-09-01

The EurObserv'ER policy profiles give a snapshot of the renewable energy policy in the EU Member States. Sweden surpassed its 2020 nationally binding renewable energy in 2013. Main support measures to promote renewable energy in Sweden consists of a quota system, various tax regulation mechanisms and subsidy schemes. Sweden has a joint support scheme with Norway, thus being the first EU Member State to implement a cooperation mechanism, as defined under the 2009 EU Renewable Energy Directive. The Swedish coalition government has agreed on a target of 100% renewable electricity production by 2040

Renewable energy

DEFF Research Database (Denmark)

Olsen, Birgitte Egelund

2016-01-01

Renewable energy projects are increasingly confronted by local opposition, which delays and sometimes even prevents their implementation. This reflects the frequent gap between support for the general idea of renewables as a strategy for reducing carbon emissions, and acceptance of renewable energy...... installations in the local landscape. A number of countries have introduced financial incentives to promote community acceptance. The tool box of incentives is still limited but in recent years it has been expanded to address local concerns. Certain general characteristics can be identified, suggesting...... that there are at least three distinct categories of incentives: individual compensation, community benefits and ownership measures. Local opposition must be approached with caution, as financial incentives to promote local acceptance can be seen as buying consent or even ‘bribery’, stirring up further opposition....

Rural electric energy services in China: Implementing the renewable energy challenge

Energy Technology Data Exchange (ETDEWEB)

Weingart, J.W.

1996-12-31

This paper discusses issues related to rural electrification in China, with emphasis on a pilot project in Mongolia to implement small scale renewable energy sources. These projects consist of photovoltaic systems, wind electric systems, photovoltaic/wind hybrid systems, and wind/gasoline generator sets. These systems are small enough to implement in rural environments, more cost effective than grid type systems, and have lower cost than standard generator sets alone because of the improved reliability. The author also discusses the use of such systems for village power sources. A number of factors are contributing to the increase in such systems. Individuals are able and willing to pay for such systems, lending institutions are willing to fund such small-scale projects, they provide reliable, high quality services which support social and economic development.

Wave power integration with a renewable hydrogen energy system. Paper no. IGEC-1-085

International Nuclear Information System (INIS)

St. Germain, L.; Wild, P.; Rowe, A.

2005-01-01

In British Columbia, approximately 90% of the electricity generated comes from hydroelectric facilities while another abundant and renewable resource, ocean wave energy, is not being utilized at all. Technologies exist that can capture and convert wave energy but there are few studies examining systemic integration of wave energy devices. This work examines the potential to use wave energy as an input into a hydrogen-based renewable energy system. A model of an oscillating water column (OWC) was developed as a module within TRNSYS where it can be coupled to other existing hydrogen-specific components such as an electrolyser, storage device, and fuel cell. The OWC model accounts for device geometry, dynamics, and generator efficiency. For this particular study, wave profiles generated from hourly average data for a location on the west coast of Vancouver Island are used as a resource input. An analysis of the potential to utilise wave energy is carried out with an emphasis on overall system efficiency and resulting device scaling. The results of the integration of wave energy with other renewable energy inputs into a hydrogen-based system are used to make recommendations regarding technical feasibility of wave power projects on Vancouver Island. (author)

Renewable energies and energy choices. Summary of the colloquium

International Nuclear Information System (INIS)

2003-05-01

This document is an executive summary of the colloquium organized by the French syndicate of renewable energies (SER) which took place at the Maison de l'UNESCO in Paris during the national debate on energies organized by the French government in spring 2003. The colloquium was organized around 6 round tables dealing with: the world perspectives and the environmental context of the contribution of renewable energies to the sustainable development (respect of Kyoto protocol commitments, contribution to the security of energy supplies, lack of large scale program of development of decentralized power generation in developing countries, lack of market tools linked with CO 2 emissions, improvement of competitiveness); development of renewable energies in Europe (promotion and sustain in all European countries, obligation of supply and purchase, pricing regulation, European harmonization of practices); renewable electricity and its place in the new orientation law about energies (tariff/pluri-annual investment planing, administrative authorizations, connections to the grid, calls for offer, costs of the photovoltaic solar energy); contribution of renewable energies in the transportation sector (bio-fuels, low taxes, ethanol fuel cells, vegetal chemistry); renewable heat and integration of renewable energy sources in buildings (intelligent architecture, promotion, quality labels and standards, lack of CO 2 penalties linked with fossil fuels, tax reduction for solar and wood fuel appliances, acknowledgment of geothermal heat pumps as renewable energy source); and the presentation of the first proposals for the future orientation law (balance between nuclear and renewable energy sources, integration in the local environment, competitiveness, use of market mechanisms, R and D etc.). (J.S.)

Renewable energies for power generation

International Nuclear Information System (INIS)

Freris, L.; Infield, D.

2009-01-01

Power generation from renewable energy sources is different from power generation from classical energies (nuclear, thermal..). Therefore, the integration into the grid of the electricity supplied by renewable sources requires a deep thinking. The reason is that these power sources are controlled by variable elements, like wind, water and sun, which condition production. This book deals with the following aspects in detail: characteristics of classical and intermittent generators; grid balancing between supply and demand; conversion methods of renewable energies into electricity; power systems; privatizing of power generation and birth of new markets, in particular the 'green' power market; development of renewable energies thanks to technical advances. It gives a comprehensive overview of the present day available renewable energy sources for power generation. (J.S.)

Challenges of Implementing Renewable Energy Policies at Community Scale: The Case of Strategic Energy Plans in Denmark

DEFF Research Database (Denmark)

Petersen, Jens-Phillip

2017-01-01

The implementation of national energy efficiency targets requires policies at the local scale. It is widely acknowledged that local communities play an important tole to implement these policies: as arena where renewable energy technologies can be combined with socio-economic interests of local...... stakeholders. Although a vast amount of demo projects are well-documented, insufficient attention has been given to the average performing municipalities and their challenges in linking technical energy scenarios with their socio-economic realities in practice. This paper analyses the Strategic Energy Plans...... (SEP) of 17 Danish municipalities on their development, inclusion of local communities, affected stakeholders, and on their impact on the municipalities’ working procedures. The main technical, physical, organisational and socio-economic challenges for local energy policy implementation are illustrated...

The Park of Renewable Energy geoethical project

Directory of Open Access Journals (Sweden)

Patrizia Sibi

2012-07-01

Full Text Available The Park of Renewable Energy is an environmental technology park in the middle of Italy that has an innovative integrated system for the production of renewable energy. Recently, the Park launched a public invitation: to become part of a great widespread community for the production of renewable energy, and to promote energy conservation and a sustainable lifestyle. This empowerment process that turns consumers into energy producers – and also into those who convey the culture of sustainability – might, over time, give life to a community that actually lives according to the geoethical principles of biosustainability. The route for the identification and dissemination of the Park of Renewable Energy community is an interesting example of the generative process, whereby rather than doggedly pursuing a predetermined objective, such as a model to be implemented, the actors involved, “look for directions and values that are inherent in the means available” [Bateson 2000], including communication networks and methodologies of social participation. The community components focus their attention on the action and relationship effects, rather than on ways to reach a predefined goal. In this perspective, the Park of Renewable Energy experience aims to become an interesting object of observation and reflection for its green ethics. This ecological approach promises unexpected new creations: there is a chance we will at last see the birth of a sustainable form of social organization adapted to the human community.

Planning for renewable energy in Devon

International Nuclear Information System (INIS)

1993-04-01

The aim of the Study was to examine the technical, planning and environmental factors, and the resource availability, which may affect the development of renewable energy schemes in Devon, with particular reference to West Devon. The study was undertaken to draw up a specimen planning policy framework for the development of renewable energy in Devon, looking at each major renewable energy source and at the relevant environmental and planning constraints; using this framework, to amplify the draft Structure Plan policy for renewable energy; to draw up draft guidance and specimen policies for a Local Plan covering renewable energy for a District Council, in this case, West Devon Borough; and to provide a pilot study for implementing the draft Planning Policy Guidance (PPG) on renewable energy. (author)

Renewable energy export network

International Nuclear Information System (INIS)

Anon

2000-01-01

part of the Renewable Energy Export Strategy include: identifying the size, location and accessibility of potential export markets; identifying Australian export capabilities including successful exporters and export-ready companies; implementing a mechanism to disseminate information to industry on export markets and opportunities; showcasing Australian export capabilities; identifying export barriers and developing a mechanism for addressing these; and strengthening and broadening the focus of the Electric Energy Industry Export Council on renewable energy exports

Energy policies. United Kingdom: the renewable energies demystified

International Nuclear Information System (INIS)

Pautrat Jr, R.

2005-01-01

In most European countries, the renewable energies encounter success and gain ground. Denmark, Germany and Spain are in the pole position of this race. However, the situation in UK is different, surprising and paradoxical as revealed by the analysis made in this paper: implementation of an ambitious energy policy based on renewable obligations (RO) and renewables obligation certificates (ROCS) and on the massive development of wind energy, fuel cells and wave power but a lack of clarity, stability and efficiency in the programs of development of these energy sources. (J.S.)

The renewable energy handbook. Elements for a debate on renewable energies in France

International Nuclear Information System (INIS)

2007-01-01

Illustrated by graphs and proposing many data tables, this handbook contains a set of sheets containing key figures and data on renewable energies. The first part gives an overview of energy balances from a general point of view, from the end user's point of view, from primary energy to final energy, and indicates the share of renewable energies in these assessments. The second part gives an overview of renewable energies: definitions, potential sources, possible implementation rate, and greenhouse gas emissions. The third part discusses prospective and strategic issues, notably the French and European commitments by 2020. The last part proposes a set of sheets containing an historical overview, and comments on the state of the art, costs, and perspectives for different renewable energy sources. It distinguishes those producing electricity (hydro, photovoltaic, wind, waves, tides, geothermal, and so on) and those associated with heat production and fuels (passive solar, heat pumps, biomass, agro-fuels, biogas, etc.)

Career Directions--Renewable Energy Systems Integrator

Science.gov (United States)

Fleeman, Stephen R.

2012-01-01

Renewable energy systems are beginning to appear everywhere. Solar modules are creating "blue roofs" that convert the energy from the sun into household electricity. Solar thermal systems on roofs can generate hot water. Wind turbines catch breezes to provide even more electricity. Recommendations for saving energy, specifying systems for…

Smart Microgrid Energy Management Controls for Improved Energy Efficiency and Renewables Integration at DoD Installations

Science.gov (United States)

2013-05-01

reduced greenhouse gas (GHG) emissions; 2. Increased energy efficiency; and 3. Increased energy surety. This demonstration will also directly impact ...megawatt (MW), as well as a gas-fired cogeneration plant in excess of 7 MW. In the future, additional solar PV, fuel cells and advanced energy storage... Energy Management Controls for Improved Energy Efficiency and Renewables Integration at DoD Installations May 2013 Report Documentation Page Form

Renewable Energy Development in Hermosa Beach, California

Science.gov (United States)

Morris, K.

2016-12-01

The City of Hermosa Beach, California, with the support of the AGU's TEX program, is exploring the potential for renewable energy generation inside the City, as part of the implementation of the City's 2015 Municipal Carbon Neutral Plan. Task 1: Estimate the technical potential of existing and future technologies Given the City's characteristics, this task will identify feasible technologies: wind, solar, tidal/wave, wastewater biogas, landfill biogas, microscale anaerobic digestion (AD), and complementary energy storage. Some options may be open to the City acting alone, but others will require working with municipal partners and private entities that provide services to Hermosa Beach (e.g., wastewater treatment). Energy storage is a means to integrate intermittent renewable energy output. Task 2: Review transaction types and pathways In this task, feasible technologies will be further examined in terms of municipal ordinances and contractual paths: (a) power purchase agreements (PPAs) with developers, under which the City would purchase energy or storage services directly; (b) leases with developers, under which the City would rent sites (e.g., municipal rooftops) to developers; (c) ordinances related to permitting, under which the City would reduce regulatory barriers to entry for developers; (d) pilot projects, under which the City would engage with developers to test new technologies such as wind/wave/microscale AD (pursuant to PPAs and/or leases); and (e) existing projects, under which the City would work with current wastewater and landfill contractors to understand (i) current plans to develop renewable energy, and (ii) opportunities for the City to work with such contractors to promote renewable energy. Task 3: Estimate costs by technology Finally, the last task will gather existing information about the costs, both current and projected, of the feasible technologies, including (i) overnight construction cost (capital); (ii) integration costs (e

Renewable energy and policy options in an integrated ASEAN electricity market: Quantitative assessments and policy implications

International Nuclear Information System (INIS)

Chang, Youngho; Li, Yanfei

2015-01-01

Energy market integration (EMI) in the ASEAN region is a promising solution to relieve the current immobilization of its renewable energy resources and would serve the fast increasing demand for electricity in the region. EMI could be further extended with coordinated policies in carbon pricing, renewable energy portfolio standards (RPS), and feed-in-tariffs (FIT) in the ASEAN countries. Using a linear dynamic programming model, this study quantitatively assesses the impacts of EMI and the above-mentioned policies on the development of renewable energy in the power generation sector of the region, and the carbon emissions reduction achievable with these policies. According to our results, EMI is expected to significantly promote the adoption of renewable energy. Along with EMI, FIT appears to be more cost-effective than RPS and is recommended for the ASEAN region, albeit political barriers for policy coordination among the countries might be a practical concern. In addition, an RPS of 30% electricity from renewable sources by 2030, which is considered politically a “low-hanging fruit”, would achieve moderate improvements in carbon emissions reductions and renewable energy development, while incurring negligible increases in the total cost of electricity. -- Highlights: •Energy market integration (EMI), carbon pricing, RPS, and FIT are examined for ASEAN. •EMI is a promising and feasible solution to promote renewable energy for ASEAN. •Along with EMI, FIT appears to be more cost-effective than RPS for ASEAN. •RPS of 30% by 2030 appears to be reasonable and feasible for ASEAN. •Coordinating FIT and RPS policies under EMI among ASEAN is advised

Smart Energy Systems for coherent 100% renewable energy and transport solutions

DEFF Research Database (Denmark)

Mathiesen, Brian Vad; Lund, Henrik; Connolly, David

2015-01-01

The hypothesis of this paper is that in order to identify least cost solutions of the integration of fluctuating renewable energy sources into current or future 100% renewable energy supplies one has to take a Smart Energy Systems approach. This paper outline why and how to do so. Traditionally......, significant focus is put on the electricity sector alone to solve the renewable energy integration puzzle. Smart grid research traditionally focuses on ICT, smart meters, electricity storage technologies, and local (electric) smart grids. In contrast, the Smart Energy System focuses on merging the electricity......, heating and transport sectors, in combination with various intra-hour, hourly, daily, seasonal and biannual storage options, to create the flexibility necessary to integrate large penetrations of fluctuating renewable energy. However, in this paper we present the development and design of coherent Smart...

Life-cycle analysis of renewable energy systems

DEFF Research Database (Denmark)

Sørensen, Bent

1994-01-01

An imlementation of life-cycle analysis (LCA) for energy systems is presented and applied to two renewable energy systems (wind turbines and building-integrated photovoltaic modules) and compared with coal plants......An imlementation of life-cycle analysis (LCA) for energy systems is presented and applied to two renewable energy systems (wind turbines and building-integrated photovoltaic modules) and compared with coal plants...

Geographic Information Systems for the Regional Integration of Renewable Energies

International Nuclear Information System (INIS)

Amador Guerra, J.; Dominguez Bravo, J.

2000-01-01

This report is based on the project: The GIS in the regional integration of Renewable Energies for decentralised electricity production; developed by CIEMAT (Spanish Energy Research Centre) and UPM (Polytechnic University of Madrid, Spain) since 1997. The objective of this project is to analyse, evaluate and improve the GIS methodologies for application in RE and how GIS can aid in the evaluation and simulation of influence of technical, socio economical and geographical parameters. This project begin with the review of SOLARGIS methodology. SOLARGIS was developed by an european research team (included CIEMAT) in the frame of JOULE II Programme. In the first place this report described the state of the art in the application of GIS to Renewable Energies. In second place, the SOLARGIS review tasks and the application of this new product to Lorca (Murcia Region in Spain). Finally, the report describes the methodology for the spatial sensibility analysis. (Author) 24 refs

Cross-border versus cross-sector interconnectivity in renewable energy systems

International Nuclear Information System (INIS)

Thellufsen, Jakob Zinck; Lund, Henrik

2017-01-01

In the transition to renewable energy systems, fluctuating renewable energy, such as wind and solar power, plays a large and important role. This creates a challenge in terms of meeting demands, as the energy production fluctuates based on weather patterns. To utilise high amounts of fluctuating renewable energy, the energy system has to be more flexible in terms of decoupling demand and production. This paper investigates two potential ways to increase flexibility. The first is the interconnection between energy systems, for instance between two countries, labelled as cross-border interconnection, and the second is cross-sector interconnection, i.e., the integration between different parts of an energy system, for instance heat and electricity. This paper seeks to compare the types of interconnectivity and discuss to which extent they are mutually beneficial. To do this, the study investigates two energy systems that represent Northern and Southern Europe. Both systems go through three developmental steps that increase the cross-sector interconnectivity. At each developmental step an increasing level of transmission capacities is examined to identify the benefits of cross-border interconnectivity. The results show that while both measures increase the system utilisation of renewable energy and the system efficiency, the cross-sector interconnection gives the best system performance. To analyse the possible interaction between cross-sector and cross-border interconnectivity, two main aspects have to be clarified. The first part defines the approach and the second is the construction of the two archetypes. - Highlights: • A method to investigate system integration and system interconnection is suggested. • The implementation is investigated across a Northern and Southern energy system. • The study identifies benefits of system integration and system interconnection. • The performance of the energy system benefits most from system integration.

An optimal renewable energy mix for Indonesia

Science.gov (United States)

Leduc, Sylvain; Patrizio, Piera; Yowargana, Ping; Kraxner, Florian

2016-04-01

Indonesia has experienced a constant increase of the use of petroleum and coal in the power sector, while the share of renewable sources has remained stable at 6% of the total energy production during the last decade. As its domestic energy demand undeniably continues to grow, Indonesia is committed to increase the production of renewable energy. Mainly to decrease its dependency on fossil fuel-based resources, and to decrease the anthropogenic emissions, the government of Indonesia has established a 23 percent target for renewable energy by 2025, along with a 100 percent electrification target by 2020 (the current rate is 80.4 percent). In that respect, Indonesia has abundant resources to meet these targets, but there is - inter alia - a lack of proper integrated planning, regulatory support, investment, distribution in remote areas of the Archipelago, and missing data to back the planning. To support the government of Indonesia in its sustainable energy system planning, a geographic explicit energy modeling approach is applied. This approach is based on the energy systems optimization model BeWhere, which identifies the optimal location of energy conversion sites based on the minimization of the costs of the supply chain. The model will incorporate the existing fossil fuel-based infrastructures, and evaluate the optimal costs, potentials and locations for the development of renewable energy technologies (i.e., wind, solar, hydro, biomass and geothermal based technologies), as well as the development of biomass co-firing in existing coal plants. With the help of the model, an optimally adapted renewable energy mix - vis-à-vis the competing fossil fuel based resources and applicable policies in order to promote the development of those renewable energy technologies - will be identified. The development of the optimal renewable energy technologies is carried out with special focus on nature protection and cultural heritage areas, where feedstock (e.g., biomass

Energy Systems Integration Laboratory | Energy Systems Integration Facility

Science.gov (United States)

| NREL Integration Laboratory Energy Systems Integration Laboratory Research in the Energy Systems Integration Laboratory is advancing engineering knowledge and market deployment of hydrogen technologies. Applications include microgrids, energy storage for renewables integration, and home- and station

Overview of the wind energy market and renewable energy policy in Romania

Science.gov (United States)

Chioncel, C. P.; Tirian, G. O.; Gillich, N.; Hatiegan, C.; Spunei, E.

2017-01-01

The modern, developed society becomes aware of the necessity to conserve and protect the environment, increasing the gained benefits from a rational use of the natural resources. The pollution and the limitation of the fossil fuels, associated with the political situation worldwide that affects direct the energy strategies, have opened opportunities in the area of operation renewable energy sources. The development of the exploitation of renewable energy sources is directly linked to the energy politic, which, in terms of Romania, has the focus to integrate into the European Union energy strategy. The year 2014 brought in Romania many legislative changes to the renewable support scheme, that proves, once again, the legislative unpredictability and limitations introduced by the legislator ”during the game” that overthrew all economic profitability calculation of the existent and planned investments in this sector. The actual stage of the wind energy across Europe and the particular situation in Romania are highlighted; also a 2020 forecast for Romania tries to evaluate the perspective for the wind, and general, renewable energy market. The actual Romanian renewable energy support scheme, mainly regulated by “Law 220/2008” ends December 2016. The so-called “ready to build” projects especially wind- or hydropower, can’t be finalized until this deadline, being unable to qualify to the existing, mainly to inoperable, support scheme. Another legislation that has to clarify how investments in renewable energy will be supported is still not in place, blocking any project development, implementation and economical benefit of the producer. The paper presents in this respect an updated overview of the Romanian renewable energy sector and its perspective.

Framework methodology for increased energy efficiency and renewable feedstock integration in industrial clusters

International Nuclear Information System (INIS)

Hackl, Roman; Harvey, Simon

2013-01-01

Highlights: • Framework methodology for energy efficiency of process plants and total sites. • Identification of suitable biorefinery based on host site future energy systems. • Case study results show large energy savings of site wide heat integration. • Case study on refrigeration systems: 15% shaft work savings potential. • Case study on biorefinery integration: utility savings potential of up to 37%. - Abstract: Energy intensive industries, such as the bulk chemical industry, are facing major challenges and adopting strategies to face these challenges. This paper investigates options for clusters of chemical process plants to decrease their energy and emission footprints. There is a wide range of technologies and process integration opportunities available for achieving these objectives, including (i) decreasing fossil fuel and electricity demand by increasing heat integration within individual processes and across the total cluster site; (ii) replacing fossil feedstocks with renewables and biorefinery integration with the existing cluster; (iii) increasing external utilization of excess process heat wherever possible. This paper presents an overview of the use of process integration methods for development of chemical clusters. Process simulation, pinch analysis, Total Site Analysis (TSA) and exergy concepts are combined in a holistic approach to identify opportunities to improve energy efficiency and integrate renewable feedstocks within such clusters. The methodology is illustrated by application to a chemical cluster in Stenungsund on the West Coast of Sweden consisting of five different companies operating six process plants. The paper emphasizes and quantifies the gains that can be made by adopting a total site approach for targeting energy efficiency measures within the cluster and when investigating integration opportunities for advanced biorefinery concepts compared to restricting the analysis to the individual constituent plants. The

Energy Systems Integration Facility Videos | Energy Systems Integration

Science.gov (United States)

Facility | NREL Energy Systems Integration Facility Videos Energy Systems Integration Facility Integration Facility NREL + SolarCity: Maximizing Solar Power on Electrical Grids Redefining What's Possible for Renewable Energy: Grid Integration Robot-Powered Reliability Testing at NREL's ESIF Microgrid

Renewables 2013. Global Status Report

Energy Technology Data Exchange (ETDEWEB)

Sawin, J. L. [and others

2013-07-01

Renewable energy markets, industries, and policy frameworks have evolved rapidly in recent years. The Renewables Global Status Report provides a comprehensive and timely overview of renewable energy market, industry, investment, and policy developments worldwide. It relies on the most recent data available, provided by many contributors and researchers from around the world, all of which is brought together by a multi-disciplinary authoring team. The report covers recent developments, current status, and key trends; by design, it does not provide analysis or forecasts. This latest Renewables Global Status Report saw: a shift in investment patterns that led to a global decrease in clean energy investment; continuing growth in installed capacity due to significant technology cost reductions and increased investment in developing countries; renewables progressively supplementing established electricity systems, demonstrating that the implementation of suitable policies can enable the successful integration of higher shares of variable renewables; and the emergence of integrated policy approaches that link energy efficiency measures with the implementation of renewable energy technologies.

An integrated system for the energy production and accumulation from renewable sources: a rural tower prototype

Science.gov (United States)

Di Francesco, Silvia; Petrozzi, Alessandro; Montesarchio, Valeria

2014-05-01

This research work presents the implementation of an architectural prototype aiming at the complete energy self-sufficiency through an integrated system based on renewable energy. It is suitable for historical buildings in rural areas, isolated but important from natural and architectonical point of view. In addition to the energy aspects, it is important to protect the impact in terms of land-use and environment. This idea is also especially powerful because in the rural countries there are many little building centers abandoned because they are devoid of a connection to the electric energy grid and methane piping. Thus, taking inspiration from dove towers, architectural typology widespread in central Italy, a virtual model has been developed as an integrated system for renewable energy production, storage and supply. While recovering the ancient tower, it is possible to design and assembly an integrated intelligent system, able to combine energy supply and demand: a new tower that should be flexible, efficient and replicable in other contexts as manufacturing, commercial and residential ones. The prototype has been applied to a real case of study, an ancient complex located in Umbria Region. The sources for electric production installed on the tower are photovoltaics, on the head and shaft of the tower, hydropower and a biomass gasifier providing thermal too. A tank at the head of the tower allows an available hydraulic potential energy, for the turbine at any time, to cover photovoltaic lacks, caused by sudden loss of production, for environmental causes. Conversely, photovoltaic peaks, otherwise unusable, can be used to reload the water from the receiving tank at the foot of the tower, up to the tank in the head. The same underground tank acts as a thermal flywheel to optimize the geothermal heat pumps for the heat and cold production. Keywords: hydropower, photovoltaics, dove tower.

Renewable Energy Policies in a Time of Transition

International Nuclear Information System (INIS)

Murdock, Hannah E.; Adib, Rana; Lins, Christine; Guerra, Flavia; Misra, Archita; Murdock, Hannah E.; Vickery, Louise; Collier, Ute; Le Feuvre, Pharoah; Bianco, Emanuele; Mueller, Simon; Philibert, Cedric; Schmidt, Oliver; Kvarnstroem, Oskar; Collier, Ute; Hungerford, Zoe; Frankl, Paolo; Bianco, Emanuele; Hawila, Diala; Ferroukhi, Rabia; Hawila, Diala; Renner, Michael; Nagpal, Divyam; Cox, Sadie; Esterly, Sean; Priesmann, Caspar; Taylor, Hadley; Breitschopf, Barbara; Van Rooijen, Sascha

2018-01-01

Spurred by innovation, increased competition, and policy support in a growing number of countries, renewable energy technologies have achieved massive technological advances and sharp cost reductions. Renewables have come to the forefront of the global energy transition, with nearly every country adopting a renewable energy target. Yet progress has been uneven in different countries and sectors. Technology and financial risks still hamper the expansion of renewables into new markets. As the power sector develops further, the increased adoption of variable renewables like solar and wind requires more flexible systems. Compared to power generation, the regulatory framework for end-use sectors lags behind. This report, prepared jointly by the International Renewable Energy Agency (IRENA), the International Energy Agency (IEA) and the Renewable Energy Policy Network for the 21. Century (REN21), identifies key barriers and highlights policy options to boost renewable energy deployment. After reviewing current policies and targets worldwide, it examines sector-specific policies for heating and cooling, transport and power, as well as measures for integrating variable renewables. An updated policy classification and terminology list can serve as a global reference for renewable energy policy instruments. Among the key findings: Renewable energy policies must focus on end-use sectors, not just power generation; The use of renewables for heating and cooling requires greater policy attention, including dedicated targets, technology mandates, financial incentives, generation-based incentives, and carbon or energy taxes; Policies in the transport sector require further development, including integrated policies to de-carbonise energy carriers and fuels, vehicles and infrastructure; Policies in the power sector must also evolve further to address new challenges. Measures are needed to support the integration of variable renewable energy, taking into account the specific

Renewable energies: search for a community strategy

International Nuclear Information System (INIS)

Anon.

1998-01-01

During the Energy Council of December 8, 1997, the European Commission has presented a white book entitled 'Energy for the future: renewable energy sources'. This white book aims to increase from 6 to 12% the share of renewable energies in the European energy consumption thanks to a global action plan of rational use of energy in association with renewable energies and to a campaign of four key-actions: 1000000 of photovoltaic systems (50% in the European Union, 50% exported); 10000 MW of wind energy; 10000 MWth of biomass energy and the integration of renewable energies in 100 communities. Short paper. (J.S.)

Renewable Energy CSOPs in Germany

Directory of Open Access Journals (Sweden)

Jens Lowitzsch

2013-01-01

Full Text Available The Energy-CSOP facilitates broad equity participation of citizens without assets or savings in a regulated public energy utility. As the CSOP is designed for regulated markets with guaranteed prices, regulated market access and long-term relationships between producer and consumer, the energy market is predestined. A CSOP trust can be set up for a renewable energy plant (e.g., a biogas reactor, a solar panel, a windmill or a geothermic drill. European states have set an ambitious target to reach 20% share of energy from renewable sources by 2020. Germany as Europe’s green energy leader could become a pioneer in CSOP implementation. Small communities in Europe would benefit from the increased share of renewable energy resources.

Impacts of optimal energy storage deployment and network reconfiguration on renewable integration level in distribution systems

International Nuclear Information System (INIS)

Santos, Sérgio F.; Fitiwi, Desta Z.; Cruz, Marco R.M.; Cabrita, Carlos M.P.; Catalão, João P.S.

2017-01-01

Highlights: • A dynamic and multi-objective stochastic mixed integer linear programming model is developed. • A new mechanism to quantify the impacts of network flexibility and ESS deployments on RES integration is presented. • Optimal integration of ESSs dramatically increases the level and the optimal exploitation of renewable DGs. • As high as 90% of RES integration level may be possible in distribution network systems. • Joint DG and ESS installations along with optimal network reconfiguration greatly contribute to voltage stability. - Abstract: Nowadays, there is a wide consensus about integrating more renewable energy sources-RESs to solve a multitude of global concerns such as meeting an increasing demand for electricity, reducing energy security and heavy dependence on fossil fuels for energy production, and reducing the overall carbon footprint of power production. Framed in this context, the coordination of RES integration with energy storage systems (ESSs), along with the network’s switching capability and/or reinforcement, is expected to significantly improve system flexibility, thereby increasing the capability of the system in accommodating large-scale RES power. Hence, this paper presents a novel mechanism to quantify the impacts of network switching and/or reinforcement as well as deployment of ESSs on the level of renewable power integrated in the system. To carry out this analysis, a dynamic and multi-objective stochastic mixed integer linear programming (S-MILP) model is developed, which jointly takes the optimal deployment of RES-based DGs and ESSs into account in coordination with distribution network reinforcement and/or reconfiguration. The IEEE 119-bus test system is used as a case study. Numerical results clearly show the capability of ESS deployment in dramatically increasing the level of renewable DGs integrated in the system. Although case-dependent, the impact of network reconfiguration on RES power integration is not

Community energy planning in Canada. The role of renewable energy

International Nuclear Information System (INIS)

St Denis, Genevieve; Parker, Paul

2009-01-01

An emerging trend in Canada is the creation of community energy plans, where decisions that used to be left to regional level energy agencies or private individuals are now being considered at the community level. A desire to reduce greenhouse gas emissions and to become more energy self-sufficient is driving this change. Theoretically, local level management is desirable because it achieves these goals through improvements in the three areas of energy efficiency, energy conservation and switching to renewable energy sources. The analysis of 10 of the first community energy plans in Canadian communities, ranging in population size from 500 to one million, finds that communities are choosing policies and programs centred on increasing energy efficiency and conservation while renewable energy receives much less attention. Municipal operations were called upon to set higher targets than the general community. Communities that recognized the substantial potential of renewable energy often focused on technologies that the municipal sector could implement, such as bio-fuels for their transportation fleet. Wind, passive solar design, solar photovoltaics and solar thermal options were only recommended in a few cases. Overall, only one of the five larger communities (Calgary) recommended implementing multiple renewable energy technologies while three of the five smaller communities proposed multiple renewable energy sources. The implication is that smaller and more remote communities may be the most willing to lead in the planned introduction of renewable energy systems. (author)

Energy landscapes, landscapes in transition. How to prepare one's territory to the deployment of renewable energies

International Nuclear Information System (INIS)

2014-06-01

This guide first defines the notion of landscape, outlines what is at stake with decentralised renewable energy production, and presents the various important aspects of a deployment of decentralised renewable energy production. It describes how to define a general strategy for the integration of this production: relationship between energy and landscape, project implementation, partnership, tools to anticipate changes, evolution of social demand through dialogue, conciliation of technical and financial constraints and landscape ambitions. An appendix proposes legal and bibliographical information: legal relationships between energy and landscape, possible arrangements for PLU (plan local d'urbanisme, local urban plan) and SCOT (schema de coherence territoriale, territorial planning document)

Renewable energy for professional applications: a guide to implementing off-grid power supplies in the UK

Energy Technology Data Exchange (ETDEWEB)

Paish, O.; Oldach, R.

2002-09-01

These guidelines are intended to help those considering renewable energy systems to supply power to off-grid applications without access to the UK mains electricity network. The guidelines consider: examples of renewable energy systems used applications with a low power demand in the UK; renewable energy technologies relevant to off-grid applications (solar photovoltaics, wind generators, micro-hydro turbines and hybrid systems); nine steps for project implementation; defining and optimising the load application; estimating energy resources when using solar energy, wind power and hydro power; general rules of thumb when choosing a power source; system components such as batteries, inverters, support structure and civil works; basic system sizing calculations; developing a specification and contacting suppliers; checking equipment, installation and commissioning; legal and other non-technical issues; operating issues such as maintenance and safety; and selected case studies from the UK.

Integrated water and renewable energy management: the Acheloos-Peneios region case study

Science.gov (United States)

Koukouvinos, Antonios; Nikolopoulos, Dionysis; Efstratiadis, Andreas; Tegos, Aristotelis; Rozos, Evangelos; Papalexiou, Simon-Michael; Dimitriadis, Panayiotis; Markonis, Yiannis; Kossieris, Panayiotis; Tyralis, Christos; Karakatsanis, Georgios; Tzouka, Katerina; Christofides, Antonis; Karavokiros, George; Siskos, Alexandros; Mamassis, Nikos; Koutsoyiannis, Demetris

2015-04-01

Within the ongoing research project "Combined Renewable Systems for Sustainable Energy Development" (CRESSENDO), we have developed a novel stochastic simulation framework for optimal planning and management of large-scale hybrid renewable energy systems, in which hydropower plays the dominant role. The methodology and associated computer tools are tested in two major adjacent river basins in Greece (Acheloos, Peneios) extending over 15 500 km2 (12% of Greek territory). River Acheloos is characterized by very high runoff and holds ~40% of the installed hydropower capacity of Greece. On the other hand, the Thessaly plain drained by Peneios - a key agricultural region for the national economy - usually suffers from water scarcity and systematic environmental degradation. The two basins are interconnected through diversion projects, existing and planned, thus formulating a unique large-scale hydrosystem whose future has been the subject of a great controversy. The study area is viewed as a hypothetically closed, energy-autonomous, system, in order to evaluate the perspectives for sustainable development of its water and energy resources. In this context we seek an efficient configuration of the necessary hydraulic and renewable energy projects through integrated modelling of the water and energy balance. We investigate several scenarios of energy demand for domestic, industrial and agricultural use, assuming that part of the demand is fulfilled via wind and solar energy, while the excess or deficit of energy is regulated through large hydroelectric works that are equipped with pumping storage facilities. The overall goal is to examine under which conditions a fully renewable energy system can be technically and economically viable for such large spatial scale.

Fuel-efficiency of hydrogen and heat storage technologies for integration of fluctuating renewable energy sources

DEFF Research Database (Denmark)

Mathiesen, Brian Vad; Lund, Henrik

2005-01-01

This paper presents the methodology and results of analysing the use of different energy storage technologies in the task of integration of fluctuating renewable energy sources (RES) into the electricity supply. The analysis is done on the complete electricity system including renewable energy...... sources as well as power plants and CHP (Combined heat and power production). Emphasis is put on the need for ancillary services. Devices to store electricity as well as devices to store heat can be used to help the integration of fluctuating sources. Electricity storage technologies can be used...... to relocate electricity production directly from the sources, while heat storage devices can be used to relocate the electricity production from CHP plants and hereby improve the ability to integrate RES. The analyses are done by advanced computer modelling and the results are given as diagrams showing...

Autonomous renewable energy conversion system

Energy Technology Data Exchange (ETDEWEB)

Valtchev, V. [Technical University of Varna (Bulgaria). Dept. of Electronics; Bossche, A. van den; Ghijselen, J.; Melkebeek, J. [University of Gent (Belgium). Dept. of Electrical Power Engineering

2000-02-01

This paper briefly reviews the need for renewable power generation and describes a medium-power Autonomous Renewable Energy Conversion System (ARECS), integrating conversion of wind and solar energy sources. The objectives of the paper are to extract maximum power from the proposed wind energy conversion scheme and to transfer this power and the power derived by the photovoltaic system in a high efficiency way to a local isolated load. The wind energy conversion operates at variable shaft speed yielding an improved annual energy production over constant speed systems. An induction generator (IG) has been used because of its reduced cost, robustness, absence of separate DC source for excitation, easier dismounting and maintenance. The maximum energy transfer of the wind energy is assured by a simple and reliable control strategy adjusting the stator frequency of the IG so that the power drawn is equal to the peak power production of the wind turbine at any wind speed. The presented control strategy also provides an optimal efficiency operation of the IG by applying a quadratic dependence between the IG terminal voltage and frequency V {approx} f{sup 2}. For improving the total system efficiency, high efficiency converters have been designed and implemented. The modular principle of the proposed DC/DC conversion provides the possibility for modifying the system structure depending on different conditions. The configuration of the presented ARECS and the implementation of the proposed control algorithm for optimal power transfer are fully discussed. The stability and dynamic performance as well as the different operation modes of the proposed control and the operation of the converters are illustrated and verified on an experimental prototype. (author)

Renewable energy in Iran: Challenges and opportunities for sustainable development

International Nuclear Information System (INIS)

Atabi, F.

2004-01-01

Around the globe, developing countries have reported different cases of successfully implemented renewable energy program supported by bilateral or multilateral funding. In developing countries subsidy has played a big role in renewable energy program marketing and whether this will lead to sustainable development is yet to be determined. The adoption of implementation strategies that will support sustainable development and overcoming barriers that hinder expansion of renewable energy technologies still remains as a big challenge to stake holders involved in promotion of renewable energy resources in developing countries. In this respect, developing countries need to re-examine their environmental policy for promotion of renewable energy technologies in order to define its role in revitalization of their economics. This paper reviews by policy incentives for promotion of renewable energy technologies in the Islamic Republic of Iran. Setting-up international collaborative business ventures between local industry in Iran and companies in developed countries is proposed as an implementation strategy that will appropriate diffusion of renewable energy technologies in the country. An organizational framework that may help to attain this objective is discussed and a structural model for renewable energy business partnership is presented. It is concluded that with appropriate policy formulations and strategies, renewable energy technologies can bring about the required socio-economic development in Iran

A Review of Barriers to and Opportunities for the Integration of Renewable Energy in the Southeast

Energy Technology Data Exchange (ETDEWEB)

McConnell, Ben W [ORNL; Hadley, Stanton W [ORNL; Xu, Yan [ORNL

2011-08-01

The objectives of this study were to prepare a summary report that examines the opportunities for and obstacles to the integration of renewable energy resources in the Southeast between now and the year 2030. The report, which is based on a review of existing literature regarding renewable resources in the Southeast, includes the following renewable energy resources: wind, solar, hydro, geothermal, biomass, and tidal. The evaluation was conducted by the Oak Ridge National Laboratory for the Energy Foundation and is a subjective review with limited detailed analysis. However, the report offers a best estimate of the magnitude, time frame, and cost of deployment of renewable resources in the Southeast based upon the literature reviewed and reasonable engineering and economic estimates. For the purposes of this report, the Southeast is defined as the states of Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and West Virginia. In addition, some aspects of the report (wind and geothermal) also consider the extended Southeast, which includes Maryland, Missouri, Oklahoma, and Texas. A description of the existing base of renewable electricity installations in the region is given for each technology considered. Where available, the possible barriers and other considerations regarding renewable energy resources are listed in terms of availability, investment and maintenance costs, reliability, installation requirements, policies, and energy market. As stated above, the report is a comprehensive review of renewable energy resources in the southeastern region of United States based on a literature study that included information obtained from the Southern Bio-Power wiki, sources from the Energy Foundation, sources available to ORNL, and sources found during the review. The report consists of an executive summary, this introductory chapter describing report objectives, a chapter on analysis methods and

System and method for integration of renewable energy and fuel cell for the production of electricity and hydrogen

NARCIS (Netherlands)

Hemmes, K.

2007-01-01

The invention relates to a system and method for integrating renewable energy and a fuel cell for the production of electricity and hydrogen, wherein this comprises the use of renewable energy as fluctuating energy source for the production of electricity and also comprises the use of at least one

Study of renewable energy, fuel cell and demotics integration for stationary energy production

Energy Technology Data Exchange (ETDEWEB)

Andaloro, L.; Ferraro, M.; Sergi, F.; Brunaccini, G.; Antonucci, V. [National Research Inst., Messina (Italy)

2009-07-01

This paper described a study in which a small house equipped with various renewable technologies was modelled. The aim of the study was to evaluated the integration of fuel cells with various other energy sources. Technologies installed in the house included a photovoltaic (PV) system; a hydrogen system; fuel cells; a battery-storage system; and a thermal solar panel. Maximum energy savings were evaluated for different configurations and combinations of the installed energy sources. A domotic system was also used to automatically control the use of electrical appliances and improve safety and comfort. An energy side management system was designed and compared with a demand side management system. Various scenarios were simulated in order to test the energy management systems in relation to the automated domotic system.

Energy Systems Integration Facility News | Energy Systems Integration

Science.gov (United States)

Facility | NREL Energy Systems Integration Facility News Energy Systems Integration Facility Energy Dataset A massive amount of wind data was recently made accessible online, greatly expanding the Energy's National Renewable Energy Laboratory (NREL) has completed technology validation testing for Go

Integrating renewables into energy systems

International Nuclear Information System (INIS)

1999-03-01

An analysis of renewable energy schemes was undertaken via case studies in China, India, Indonesia, Kenya, South Africa, Thailand and Zimbabwe, that provided an insight into the application of best practice for overcoming market, technical and financial barriers to the establishment of the sustainable markets required for the large-scale deployment of renewable energy technologies. The project showed clearly the need to select and target interventions according to the context. Lessons were extracted against a number of themes, as well as against the various technologies analysed and simple guides to the principles of best practice were derived under the following headings:- experience of gaining access to (micro) finance; the technical and non-technical issues raised when small, typically independent, generators seek access to central electricity grid systems; how to best undertake awareness raising and dissemination activities; promoting, building and operating biogas systems; promoting, building and operating solar (photovoltaic) home systems; promoting, building and operating grid connected wind power; promoting, building and operating solar hot water systems; promoting agricultural cogeneration using crop residues. (author)

Integrated electrofuels and renewable energy systems

DEFF Research Database (Denmark)

Ridjan, Iva

energy into chemical energy by means of electrolysers, thus connecting fluctuating renewable energy to the vast amount of fuel storage already available in today’s energy systems. The conducted research indicates that electrofuels for heavy-duty transportation are technically and economically viable...... in energy systems and could play an important role in future energy systems. The cross-sector approach in the fuel production, by redirecting the excess electricity to the transport sector, is creating the flexibility and storage buffer for fluctuating electricity. The key concern in the short term should...

The renewable energy market in Australia

International Nuclear Information System (INIS)

2002-01-01

Australia is committed to an 8 per cent reduction in its emissions of greenhouse gases above 1990 levels as a result of the Kyoto Protocol for the period 2008-2012. At present, the emissions stand at 17.4 per cent above 1990 levels. Total electrical power in Australia resulting from renewable energy is in the order of 10.5 per cent. A mandatory renewable energy target of 9500 gigawatt hour (GWh) of extra renewable energy is to be produced annually by 2010, under the Renewable Energy (Electricity) Act. An emissions trading system has been implemented, involving one renewable energy certificate (REC) created for each megawatt hour of renewable energy generated. A significant expansion of the demand for renewable energy is expected in Australia over the next ten years, according to the Australian Greenhouse Office. Increased opportunities for local and international firms operating in the field of renewable energy are being created by the Australian government through initiatives such as the Renewable Energy Commercialization Program, and the Renewable Remote Power Generation Program. Solar, biomass, and wind power are comprised in the wealth of renewable energy resources in Australia. The market remains largely undeveloped. Firms from the United States and the European Union are the leading exporters of renewable energy technology to Australia. Public utilities and independent power producers having entered the deregulated electricity market are the consumers of renewable energy technology and services. A country with minimal duties in most cases, Australia has much in common with Canada, including similar regulatory and legal systems. Australia applies a 10 per cent goods and services tax, which would apply to Canadian exports. It was advised to consult the Australian Customs Service for additional information concerning duties that might be applicable to the renewable energy industry. 28 refs., 3 tabs

Renewable energies. Italy is mobilizing

International Nuclear Information System (INIS)

Marante, W.

2005-01-01

About 3 quarter of the Italian electric power comes from fossil fuel power plants. The rest is generated from hydropower, few comes from biomass and wind energy and a very few from geothermal energy (2% of the national production). However, the situation is changing and geothermal energy, with only 5 TWh, makes Italy the European leader in this domain and the world number 4 behind USA, Philippines and Mexico. The renewable sources represent 18.5% of the total Italian energy production. During the last five years, the renewable energy sources have developed rapidly: +80% per year for the wind energy, +32% per year for biomass and about +3% per year for geothermal energy. Moreover, the Italian government is implementing incentives for the development of renewable energy sources. This article gives an overview of the situation. (J.S.)

Elements of an analysis for a deployment and integration strategy for electric renewable energy in France

International Nuclear Information System (INIS)

Ruedinger, Andreas

2016-01-01

Through a synthesis of research reports and round tables organized by IDDRI in partnership with the German think-tank Agora Energiewende, this study aims to define the issues and contours of a strategic roadmap for the deployment and integration of renewable energy in France: long-term visibility; the need to better take into account the transformation at a regional and European level; regulatory issues, essential for reducing uncertainty and accelerating the deployment of projects; given the capital intensity of RES projects, issues related to instruments aiming at reducing the risks and costs of financing; and finally the challenges for project acceptance at the local level and appropriation of these projects by the different actors. The French Energy Transition Law for Green Growth adopted in 2015 sets a 40% target for the share of renewables in electricity consumption, representing a doubling of their share to be achieved between now and 2030. This implies a need to speed up the development of the renewable sector. An important lever would be the reduction in project implementation time - down from 7 to 8 years in the wind sector - by simplifying administrative procedures and smoothing the grid connection process. Measures such as the single permit and a 18-month deadline for grid connections, provided for in the Energy Transition Law, should be fully enforced, and a consideration of complementary measures aimed at limiting legal disputes and actions could bring additional value. The portfolio-oriented approach to planning - which seeks to establish the share of each technology in the electricity supply - should be eschewed in favor of a more detailed projection of the evolution of the sector and in particular of electricity demand, as new uses for electricity are envisaged and energy efficiency is declared a priority of the transition. A roadmap would thus be available to help improve the credibility of policies implemented as well as the alignment between the

Renewable energy islands in Europe

Energy Technology Data Exchange (ETDEWEB)

Oestergaard, Iben [ed.

1998-12-31

This publication includes a compiled presentation of various aspects concerning the possible transformation of some European islands into renewable energy communities and these projects were presented by a selection of pioneer islands at the first European Seminar on Renewable Energy Islands, held on the Danish island of Samsoee, 29-30 June 1998. This issue has increased in importance with the presentation of the ambitious EU-White Paper: `Energy for the future: Renewable Sources of Energy` which was adopted in 1998. One of the key elements of the strategy for an accelerated implementation of renewable energy is to transform 100 localities within Europe into communities which are to be 100% self-sufficient with renewable energy before 2010. In line with this strategy, the Danish Government appointed the island of Samsoe towards the end of 1997 to be the first `official` Danish, renewable energy island. This is to serve as a demonstration project for other local communities, both in Denmark as well as in the rest Europe. Gothland, Madeira, Canary Islands, Cape Verde, Arki, Crete, Minorca and Orkney Islands were represented. Environmental advantages of wind, solar and wave power for distant island communities were indicated. Serious savings would be achieved by limitation of fossil fuel import and utilization of local resources. (EG)

Renewable energy progress and biofuels sustainability

Energy Technology Data Exchange (ETDEWEB)

Hamelinck, C.; De Lovinfosse, I.; Koper, M.; Beestermoeller, C.; Nabe, C.; Kimmel, M.; Van den Bos, A.; Yildiz, I.; Harteveld, M. [Ecofys Netherlands, Utrecht (Netherlands); Ragwitz, M.; Steinhilber, S. [Fraunhofer Institut fuer System- und Innovationsforschung ISI, Karlsruhe (Germany); Nysten, J.; Fouquet, D. [Becker Buettner Held BBH, Munich (Germany); Resch, G.; Liebmann, L.; Ortner, A.; Panzer, C. [Energy Economics Group EEG, Vienna University of Technology, Vienna (Austria); Walden, D.; Diaz Chavez, R.; Byers, B.; Petrova, S.; Kunen, E. [Winrock International, Brussels (Belgium); Fischer, G.

2013-03-15

On 27 March 2013, the European Commission published its first Renewable Energy Progress Report under the framework of the 2009 Renewable Energy Directive. Since the adoption of this directive and the introduction of legally binding renewable energy targets, most Member States experienced significant growth in renewable energy consumption. 2010 figures indicate that the EU as a whole is on its trajectory towards the 2020 targets with a renewable energy share of 12.7%. Moreover, in 2010 the majority of Member States already reached their 2011/2012 interim targets set in the Directive. However, as the trajectory grows steeper towards the end, more efforts will still be needed from the Member States in order to reach the 2020 targets. With regard to the EU biofuels and bioliquids sustainability criteria, Member States' implementation of the biofuels scheme is considered too slow. In accordance with the reporting requirements set out in the 2009 Directive on Renewable Energy, every two years the European Commission publishes a Renewable Energy Progress Report. The report assesses Member States' progress in the promotion and use of renewable energy along the trajectory towards the 2020 renewable energy targets. The report also describes the overall renewable energy policy developments in each Member State and their compliance with the measures outlined in the Directive and the National Renewable Energy Action Plans. Moreover, in accordance with the Directive, it reports on the sustainability of biofuels and bioliquids consumed in the EU and the impacts of this consumption. A consortium led by Ecofys was contracted by the European Commission to perform support activities concerning the assessment of progress in renewable energy and sustainability of biofuels.

Renewable energy progress and biofuels sustainability

Energy Technology Data Exchange (ETDEWEB)

Hamelinck, C.; De Lovinfosse, I.; Koper, M.; Beestermoeller, C.; Nabe, C.; Kimmel, M.; Van den Bos, A.; Yildiz, I.; Harteveld, M. [Ecofys Netherlands, Utrecht (Netherlands); Ragwitz, M.; Steinhilber, S. [Fraunhofer Institut fuer System- und Innovationsforschung ISI, Karlsruhe (Germany); Nysten, J.; Fouquet, D. [Becker Buettner Held BBH, Munich (Germany); Resch, G.; Liebmann, L.; Ortner, A.; Panzer, C. [Energy Economics Group EEG, Vienna University of Technology, Vienna (Austria); Walden, D.; Diaz Chavez, R.; Byers, B.; Petrova, S.; Kunen, E. [Winrock International, Brussels (Belgium); Fischer, G.

2013-03-15

On 27 March 2013, the European Commission published its first Renewable Energy Progress Report under the framework of the 2009 Renewable Energy Directive. Since the adoption of this directive and the introduction of legally binding renewable energy targets, most Member States experienced significant growth in renewable energy consumption. 2010 figures indicate that the EU as a whole is on its trajectory towards the 2020 targets with a renewable energy share of 12.7%. Moreover, in 2010 the majority of Member States already reached their 2011/2012 interim targets set in the Directive. However, as the trajectory grows steeper towards the end, more efforts will still be needed from the Member States in order to reach the 2020 targets. With regard to the EU biofuels and bioliquids sustainability criteria, Member States' implementation of the biofuels scheme is considered too slow. In accordance with the reporting requirements set out in the 2009 Directive on Renewable Energy, every two years the European Commission publishes a Renewable Energy Progress Report. The report assesses Member States' progress in the promotion and use of renewable energy along the trajectory towards the 2020 renewable energy targets. The report also describes the overall renewable energy policy developments in each Member State and their compliance with the measures outlined in the Directive and the National Renewable Energy Action Plans. Moreover, in accordance with the Directive, it reports on the sustainability of biofuels and bioliquids consumed in the EU and the impacts of this consumption. A consortium led by Ecofys was contracted by the European Commission to perform support activities concerning the assessment of progress in renewable energy and sustainability of biofuels.

Electrical hubs: An effective way to integrate non-dispatchable renewable energy sources with minimum impact to the grid

International Nuclear Information System (INIS)

Perera, A.T.D.; Nik, Vahid M.; Mauree, Dasaraden; Scartezzini, Jean-Louis

2017-01-01

Highlights: • A novel method introduced to optimize Electrical Hubs. • Novel dispatch based on fuzzy control and finite state machines. • Evaluating sensitivity of three performance indices for system autonomy. • Multi objective optimization considering system autonomy-cost. • Electrical Hubs can cover above 60% of the demand using wind and Solar PV. - Abstract: A paradigm change in energy system design tools, energy market, and energy policy is required to attain the target levels in renewable energy integration and in minimizing pollutant emissions in power generation. Integrating non-dispatchable renewable energy sources such as solar and wind energy is vital in this context. Distributed generation has been identified as a promising method to integrate Solar PV (SPV) and wind energy into grid in recent literature. Distributed generation using grid-tied electrical hubs, which consist of Internal Combustion Generator (ICG), non-dispatchable energy sources (i.e., wind turbines and SPV panels) and energy storage for providing the electricity demand in Sri Lanka is considered in this study. A novel dispatch strategy is introduced to address the limitations in the existing methods in optimizing grid-integrated electrical hubs considering real time pricing of the electricity grid and curtailments in grid integration. Multi-objective optimization is conducted for the system design considering grid integration level and Levelized Energy Cost (LEC) as objective functions to evaluate the potential of electrical hubs to integrate SPV and wind energy. The sensitivity of grid curtailments, energy market, price of wind turbines and SPV panels on Pareto front is evaluated subsequently. Results from the Pareto analysis demonstrate the potential of electrical hubs to cover more than 60% of the annual electricity demand from SPV and wind energy considering stringent grid curtailments. Such a share from SPV and wind energy is quite significant when compared to direct grid

Promoting the market and system integration of renewable energies through premium schemes—A case study of the German market premium

International Nuclear Information System (INIS)

Gawel, Erik; Purkus, Alexandra

2013-01-01

With the share of renewable energies within the electricity sector rising, improving their market and system integration is of increasing importance. By offering plant operators a premium on top of the electricity market price, premium schemes represent an option to increase the alignment of renewable electricity production with market signals, and have been implemented by several EU member states. This paper examines the case study of the German market premium scheme adopted in 2012. Building on an evaluation of early experiences, we discuss whether the market premium contributes to the aims of market and/or system integration (effectiveness), and what potential efficiency gains and additional costs of “administering integration” are associated with it (efficiency). While exposing renewables to price risks is not the scheme’s purpose, it has successfully increased participation in direct marketing. However, risks of overcompensating producers for marketing and balancing costs are high, and the benefits of gradually leading plant operators towards the market are questionable. Incentives for demand-oriented production are established, but they seem insufficient particularly in the case of intermittent renewable energy sources. To conclude, we provide an outlook on alternative designs of premium schemes, and discuss whether they seem better suited for addressing the challenges ahead. - Highlights: • Premium schemes are used to align renewable energy sources (RES) with market signals. • We examine the effectiveness and efficiency of the German market premium scheme. • Participation in direct marketing has increased, but so have support costs. • For intermittent RES, incentives for demand-oriented production are insufficient. • Efficiency gains from exposing RES to market risks entail several trade-offs

Photovoltaics and renewable energies in Europe

International Nuclear Information System (INIS)

Jaeger-Waldau, Arnulf

2007-01-01

Photovoltaics and renewable energies are growing at a much faster pace than the rest of the economy in Europe and worldwide. This and the dramatic oil price increases in 2005 have led to a remarkable re-evaluation of the renewable energy sector by politics and financing institutions. Despite the fact that there are still discrepancies between the European Union and the USA, as to how to deal with climate change, renewable energies will play an important role for the implementation of the Kyoto Protocol and the worldwide introduction of tradable Green Certificates. Apart from the electricity sector, renewable energy sources for the generation of heat and the use of environment friendly biofuels for the transport sector will become more and more important in the future. (author)

Renewable Energy Policy Fact sheet - Estonia

International Nuclear Information System (INIS)

2017-09-01

The EurObserv'ER policy profiles give a snapshot of the renewable energy policy in the EU Member States. Electricity from renewable sources is mainly promoted through feed-in premiums (FiP). In addition, investment subsidies are available for biogas/biomass-based RES-E and wind power installations. Renewable heat is stimulated through investment subsidies to CHP plants generating renewable heat and electricity, as well as subsidies for private heat consumers. Renewable transport fuels are currently mainly incentivised by way of a support scheme to promote the purchase of electric cars that use power produced from renewable energy sources. Recently, a measure for supporting bio-methane in the transport sector has been adopted. Generally, a number of investment subsidy schemes are in place to promote the development, installation and use of renewable energy production installations. However, certain subsidy conditions still have to be announced and implemented. The total amount of financial support to be allocated to renewable energy and energy efficiency related projects during period 2014-2020 will be over euro 490 million. The current administratively determined FiP scheme is set to be replaced by an auction-based scheme within short

ECOWAS renewable energy and energy efficiency status report - 2014

International Nuclear Information System (INIS)

Auth, Katie; Musolino, Evan; Thomas, Tristram; Adebiyi, Adeola; Reiss, Karin; Semedo, Eder; Williamson, Laura E.; Chawla, Kanika; Diarra, Charles

2014-01-01

In recent years, the Economic Community of West African States (ECOWAS), comprising 15 Member States, it has emerged as one of the most active and dynamic regional economic communities on the African continent. Expanding access to modern, reliable, and affordable energy services is a key priority, prompting inter-state cooperation in crucial areas including capacity building, policy development and implementation, and investment. Recognising the critical role that sustainable energy plays in catalysing social, economic, and industrial development across the region, ECOWAS Member States formally inaugurated the ECOWAS Centre for Renewable Energy and Energy Efficiency (ECREEE) in 2010 to 'contribute to the sustainable economic, social and environmental development of West Africa by improving access to modern, reliable and affordable energy services, energy security and reduction of energy related externalities'. Drawing on data from the ECOWAS Observatory for Renewable Energy and Energy Efficiency (ECOWREX) and a network of contributors and researchers across the region, the ECOWAS Renewable Energy and Energy Efficiency Status Report supports ECREEE's efforts to increase the deployment of renewable energy and energy efficiency in West Africa by providing a comprehensive regional review of renewable energy and energy efficiency developments, evolving policy landscapes, market trends and related activities, investments in renewable energy and off-grid energy solutions, and the crucial nexus between energy access and gender

Feasibility Analysis and Simulation of Integrated Renewable Energy System for Power Generation: A Hypothetical Study of Rural Health Clinic

Directory of Open Access Journals (Sweden)

Vincent Anayochukwu Ani

2015-01-01

Full Text Available This paper presents the feasibility analysis and study of integrated renewable energy (IRE using solar photovoltaic (PV and wind turbine (WT system in a hypothetical study of rural health clinic in Borno State, Nigeria. Electrical power consumption and metrology data (such as solar radiation and wind speed were used for designing and analyzing the integrated renewable energy system. The health clinic facility energy consumption is 19 kWh/day with a 3.4 kW peak demand load. The metrological data was collected from National Aeronautics and Space Administration (NASA website and used to analyze the performance of electrical generation system using HOMER program. The simulation and optimization results show that the optimal integrated renewable energy system configuration consists of 5 kW PV array, BWC Excel-R 7.5 kW DC wind turbine, 24 unit Surrette 6CS25P battery cycle charging, and a 19 kW AC/DC converter and that the PV power can generate electricity at 9,138 kWh/year while the wind turbine system can generate electricity at 7,490 kWh/year, giving the total electrical generation of the system as 16,628 kWh/year. This would be suitable for deployment of 100% clean energy for uninterruptable power performance in the health clinic. The economics analysis result found that the integrated renewable system has total NPC of 137,139 US Dollar. The results of this research show that, with a low energy health facility, it is possible to meet the entire annual energy demand of a health clinic solely through a stand-alone integrated renewable PV/wind energy supply.

Optimizing decentralized renewable energy production by combining potentials and integrated environmental impact analysis. A case study in the Hannover region

Energy Technology Data Exchange (ETDEWEB)

Palmas, Claudia; Siewert, Almut [Leibniz Univ. of Hannover (Germany). Dept. of Environmental Planning

2013-07-01

In Europe, the integration of decentralized renewable energy production in regional planning processes plays a crucial role. In particular, regions face a major challenge in order to set up renewable decentralized energy systems and incorporate them into the electricity grid. This paper presents a methodological concept and preliminary tests of applications in order to create an optimization model for an improved renewable energy development and planning practice: firstly, the energy potentials of micro renewable resources are estimated, and secondly the outcomes are combined with an estimation of resulting environmental impacts. Including these data into the spatial analysis, different scenarios can be developed in order to support decision making in landscape planning on the basis of environmental and landscape criteria as well as energy issues, including technical aspects and costs. The case study area is the Hannover region. First results show good energy potentials, which will be in a next step evaluated and combined with environmental impacts in order to improve energy efficiency by integrated renewable, decentralized power plants and energy mix. (orig.)

Integration of renewable energy and energy efficiency into high temperature applications

CSIR Research Space (South Africa)

Roos, T

2015-10-01

Full Text Available solar collectors, or electric conversion (preferably renewable) if fossil-based. This can enable further emissions reductions, as fuel combustion is displaced. Globally, renewable energy technologies have predominantly been limited to the electricity...

Evaluating multifunctional storage usage for the integration of renewable energies

Energy Technology Data Exchange (ETDEWEB)

Koopmann, Simon; Wasowicz, Bartholomaeus; Raths, Stephan; Pollok, Thomas; Schnettler, Armin [RWTH Aachen Univ. (Germany). Inst. for High Voltage Technology

2012-07-01

Market and grid integration of the increasing share of renewable energy sources (RES) pose significant challenges to the electricity system in Germany. Energy storages are frequently discussed as one part of the solution. However, storage operators in a liberalized electricity market are profit maximizing actors, who are only interested in supporting the integration of RES, if it is economically attractive. A storage dispatch optimization model has been developed to comprehensively analyze the wide range of storage applications. Three storage operational modes are introduced and evaluated in this paper. The entirely market-focused multimarket operation is found to be the most profitable option for storage operators. Integration of RES is of minor importance in this operational mode. Using storage systems only for grid purposes in the grid supportive operational mode is found to be least profitable. A combined storage usage for market and grid applications in the multifunctional operation achieves similar benefits for the grid as in the grid supportive mode by better integrating RES, while also achieving profits from the markets. The current market and regulatory framework however, provides no incentives for storage operators to pursue this dispatch strategy, which is favorable for an improved RES integration.

Implementing Workload Postponing In Cloudsim to Maximize Renewable Energy Utilization

OpenAIRE

Enida Sheme; Neki Frashëri

2016-01-01

Green datacenters has become a major research area among researchers in academy and industry. One of the recent approaches getting higher attention is supplying datacenters with renewable sources of energy, leading to cleaner and more sustainable datacenters. However, this path poses new challenges. The main problem with existing renewable energy technologies is high variability, which means high fluctuation of available energy during different time periods on a day, month or year...

The impacts of non-renewable and renewable energy on CO2 emissions in Turkey.

Science.gov (United States)

Bulut, Umit

2017-06-01

As a result of great increases in CO 2 emissions in the last few decades, many papers have examined the relationship between renewable energy and CO 2 emissions in the energy economics literature, because as a clean energy source, renewable energy can reduce CO 2 emissions and solve environmental problems stemming from increases in CO 2 emissions. When one analyses these papers, he/she will observe that they employ fixed parameter estimation methods, and time-varying effects of non-renewable and renewable energy consumption/production on greenhouse gas emissions are ignored. In order to fulfil this gap in the literature, this paper examines the effects of non-renewable and renewable energy on CO 2 emissions in Turkey over the period 1970-2013 by employing fixed parameter and time-varying parameter estimation methods. Estimation methods reveal that CO 2 emissions are positively related to non-renewable energy and renewable energy in Turkey. Since policy makers expect renewable energy to decrease CO 2 emissions, this paper argues that renewable energy is not able to satisfy the expectations of policy makers though fewer CO 2 emissions arise through production of electricity using renewable sources. In conclusion, the paper argues that policy makers should implement long-term energy policies in Turkey.

The opportunities and challenges of living off-grid on renewable energy in the Yukon : results of a baseline study and integrated design charrette

International Nuclear Information System (INIS)

Ayoub, J.

2004-01-01

There are over 200,000 Canadians living in more than 300 remote communities throughout Canada. Energy supply to these communities is characterized by high costs, high degree of dependence on imported fuel, a lack of local technical expertise to provide needed services, and a reliance on diesel generators for producing electricity. Costs can vary from $0.15 to $1.50 per kWh. Renewable energy technologies can be cost effective for electricity generation and for heating applications. A 4-year research and development project entitled: An Integrated Approach to Increasing the Use of Renewable Energy in Off-grid Residences in the North was developed with the aim of increasing the ratio of renewable energy to total energy use in off-grid residences by 10 per cent. The first part of the project established baseline information on renewable energy use in off-grid residences North of the 60 degree north latitude in the Yukon Territory. The Yukon Energy Solutions Centre (YESC), located in Whitehorse, was approached to participate. A survey questionnaire identifying the needs and preferences of residents in 30 off-grid dwellings in the Yukon was developed. Potential participants for renewable energy and energy efficiency audits were identified and home owners' preferences were considered along with the possibility of implementing retrofits. The design charrette was the second activity. This paper presents the results of the baseline study and the design charette and examine the path forward to advance the use of renewable energy technologies in this application sector

The potential contribution of renewable energy to electricity supply in Saudi Arabia

International Nuclear Information System (INIS)

Alnatheer, Othman

2005-01-01

Saudi Arabia has enormous oil resources. At the same time, the Kingdom has other resources, notably solar energy that may figure in future supplies of electricity. In the past several years, considerable operational experience has been gained throughout the world in the implementation of renewable energy systems of types that would be relevant to the Kingdom. This paper reviews the nature of this experience and applies it in a quantitative assessment of the costs, savings, and environmental benefits of renewable energy conducted as a part of an electric utility integrated resource planning (IRP) project in the Kingdom. Integrated resource planning is an approach that systematically evaluates potential electricity supply and demand-side resources with the aim of developing a plan that provides energy services to customers at the least societal cost. The analysis summarized in this paper has shown that, when some of the non-market benefits of renewable energy are also included in the assessment of their overall costs and benefits, a supply expansion plan that includes wind and solar resources can provide energy services for the Kingdom at a lower societal cost than a 'Business-as-usual' plan utilizing only fossil-fueled generating resources

Implementation of Auctions for Renewable Energy Support in the Netherlands and Denmark: A cooperation case study

DEFF Research Database (Denmark)

Gephart, Malte; Kitzing, Lena; Tiedeman, Silvana

This report deals with the potential implementation of opened auctions for Renewable Energy support in the Netherlands from 2017 on. The report focuses on the implementation process and provides the necessary background information. Furthermore the planned auction design is described and discussed...... of success criteria, of appropriate auction formats and suitable design elements for RES auctions, as well as the analysis of past auction implementations....

Portfolio Analysis of Renewable Energy Opportunities: Preprint

Energy Technology Data Exchange (ETDEWEB)

Richards, Allison; Deprizio, Jodi; Anderson, Kate; DiOrio, Nick; Elgqvist, Emma; Simpkins, Travis

2016-11-01

Time Warner Cable (TWC), now Charter Communications (CC), partnered with the National Renewable Energy Laboratory (NREL) to assess the technical and economic potential for solar photovoltaic (PV), wind, and ground-source heat-pump systems at 696 TWC facilities. NREL identified 306 sites where adding a renewable energy system would provide cost savings over the project life-cycle. In general, the top sites have some combination of high electricity rates ($0.16-$0.29/kWh), significant state incentives, and favorable net-metering policies. If all projects were implemented via third-party power purchase agreements, TWC/CC would save $37 million over 25 years and meet 10.5% of their energy consumption with renewable energy. This paper describes the portfolio screening methodology used to identify and prioritize renewable energy opportunities across the TWC sites, as well as a summary of the potential cost savings that may be realized by implementing these projects. This may provide a template for other companies interested in identifying and prioritizing renewable energy opportunities across a large number of geographically dispersed sites. Following this initial portfolio analysis, NREL will be conducting in-depth analysis of project development opportunities at ten sites and evaluating off-grid solutions that may enable carbon emission reduction and grid independence at select facilities.

Renewable energy and the need for local energy markets

International Nuclear Information System (INIS)

Hvelplund, Frede

2006-01-01

In Denmark, a technological change towards cleaner energy technologies has been developed and implemented since around 1975. This development has had two phases: The first from 1975 until around 1996, when wind power was a niche production that supplied only 3.5% of the electricity consumption and was brought close to cost competitiveness, and the present second phase, in which wind power supplies an increasing share (in 2004 18.6%) of electricity consumption along with combined heat and power plants, which supply around 50% of consumption. Denmark succeeded in overcoming the first phase, and a large green energy technology cluster was established. During the second phase, new difficulties and challenges have arisen, both with regard to local public acceptance and the need for integrating an increasing percentage of fluctuating energy sources into the energy system. In this Phase 2, a new offensive green energy policy should be introduced in order to secure both public and political acceptance. Local markets should be established in order to secure the technical integration of a large proportion of wind power and other fluctuating renewable energy sources into the energy system

Dynamic Biogas Upgrading for Integration of Renewable Energy from Wind, Biomass and Solar

DEFF Research Database (Denmark)

Jurgensen, Lars

The Sabatier process is investigated as a storage scheme for renewable energy. Hydrogen derived from fluctuating renewable energy sources like wind and solar is converted to methane by the hydrogenation/methanation of carbon oxides. Biogas from anaerobic digestion is considered in this study...... as a sustainable process for electricity storage and system integration in Northern Germany, i. e. the state of Schleswig-Holstein. A feasibility study was conducted to analyze the energy system in this region and the potential for this process. Process simulation tools were used to prove the product gas...... properties and the degree of efficiency of the system. Lab-scale and bench-scale experiments where further applied to demonstrate the utilization of industrial waste water for biogas production and the general applicability of biogas in the Sabatier process....

DRI Renewable Energy Center (REC) (NV)

Energy Technology Data Exchange (ETDEWEB)

Hoekman, S. Kent; Broch, Broch; Robbins, Curtis; Jacobson, Roger; Turner, Robert

2012-12-31

The primary objective of this project was to utilize a flexible, energy-efficient facility, called the DRI Renewable Energy Experimental Facility (REEF) to support various renewable energy research and development (R&D) efforts, along with education and outreach activities. The REEF itself consists of two separate buildings: (1) a 1200-ft2 off-grid capable house and (2) a 600-ft2 workshop/garage to support larger-scale experimental work. Numerous enhancements were made to DRI's existing renewable power generation systems, and several additional components were incorporated to support operation of the REEF House. The power demands of this house are satisfied by integrating and controlling PV arrays, solar thermal systems, wind turbines, an electrolyzer for renewable hydrogen production, a gaseous-fuel internal combustion engine/generator set, and other components. Cooling needs of the REEF House are satisfied by an absorption chiller, driven by solar thermal collectors. The REEF Workshop includes a unique, solar air collector system that is integrated into the roof structure. This system provides space heating inside the Workshop, as well as a hot water supply. The Workshop houses a custom-designed process development unit (PDU) that is used to convert woody biomass into a friable, hydrophobic char that has physical and chemical properties similar to low grade coal. Besides providing sufficient space for operation of this PDU, the REEF Workshop supplies hot water that is used in the biomass treatment process. The DRI-REEF serves as a working laboratory for evaluating and optimizing the performance of renewable energy components within an integrated, residential-like setting. The modular nature of the system allows for exploring alternative configurations and control strategies. This experimental test bed is also highly valuable as an education and outreach tool both in providing an infrastructure for student research projects, and in highlighting renewable

Interactions between renewable energy policy and renewable energy industrial policy: A critical analysis of China's policy approach to renewable energies

International Nuclear Information System (INIS)

Zhang, Sufang; Andrews-Speed, Philip; Zhao, Xiaoli; He, Yongxiu

2013-01-01

This paper analyzes China's policy approach to renewable energies and assesses how effectively China has met the ideal of appropriate interactions between renewable energy policy and renewable energy industrial policy. First we briefly discuss the interactions between these two policies. Then we outline China's key renewable energy and renewable industrial policies and find that China's government has well recognized the need for this policy interaction. After that, we study the achievements and problems in China's wind and solar PV sector during 2005–2012 and argue that China's policy approach to renewable energies has placed priority first on developing a renewable energy manufacturing industry and only second on renewable energy itself, and it has not effectively met the ideal of appropriate interactions between renewable energy policy and renewable energy industrial policy. Lastly, we make an in-depth analysis of the three ideas underlying this policy approach, that is, the green development idea, the low-carbon leadership idea and indigenous innovation idea. We conclude that Chinas' policy approach to renewable energies needs to enhance the interactions between renewable energy policy and renewable energy industrial policy. The paper contributes to a deeper understanding of China's policy strategy toward renewable energies. -- Highlights: •Interactions between renewable energy policy and renewable energy industrial policy are discussed. •China's key renewable energy and renewable energy industrial policies are outlined. •Two empirical cases illustrate China's policy approach to renewable energies. •We argue that China needs to enhance the interactions between the two policies. •Three ideas underlie China's policy approach to renewable energies

The marine renewable energies file

International Nuclear Information System (INIS)

2009-01-01

A set of articles addresses several aspects and issues related to the development of renewable marine energies: the objectives defined by the French government and the European Union in terms of share of renewable energies in energy consumption, some existing projects, the definition and assessment of the different renewable marine energies (offshore wind energy, sea thermal energy, sea current energy, sea tide energy, sea wave energy, marine biomass, osmotic energy), the need for a national strategy according to two researchers belonging to IFREMER, the implementation of the first offshore test platform by the Ecole Centrale de Nantes, the role of the ADEME (financial support, marketing studies, legislation, definition of a national programme), the recommendation by the European Commission of a large scale offshore wind energy development, the activities of EDF and Total in the field of marine energy, the problems faced by the first French offshore wind generator project, the actions undertaken in La Reunion in the field of sea thermal energy, and the opportunities in the use of micro-algae for hydrogen, bio-fuel or biogas production

Proposed applications with implementation techniques of the upcoming renewable energy resource, The Tesla Turbine

International Nuclear Information System (INIS)

Khan, M Usman Saeed; Maqsood, M Irfan; Ali, Ehsan; Jamal, Shah; Javed, M

2013-01-01

Recent research has shown that tesla turbine can be one of the future efficient sources of renewable energy. Modern techniques used for designing of tesla turbine have given optimum results regarding efficiency and applications. In this paper we have suggested fully coordinated applications of tesla turbine in different fields particularly in power generation at both low level and high level generation. In Energy deficient countries the tesla turbine has wide range of applications and it can play an important role in energy management system. Our proposed applications includes, - the use of tesla turbine as renewable energy resource; - using tesla turbine in distributed generation system; - use of tesla turbine at home for power generation; - use of tesla turbine in irrigation channels; - using tesla turbine in hybrid electric vehicles; All applications are explained with the help of flow charts and block diagrams and their implementation techniques are also explained in details. The results of physical experiments and simulations are also included for some applications.

Integrating Renewable Energy into the Transmission and Distribution System of the U. S. Virgin Islands

Energy Technology Data Exchange (ETDEWEB)

Burman, K.; Olis, D.; Gevorgian, V.; Warren, A.; Butt, R.; Lilienthal, P.; Glassmire, J.

2011-09-01

This report focuses on the economic and technical feasibility of integrating renewable energy technologies into the U.S. Virgin Islands transmission and distribution systems. The report includes three main areas of analysis: 1) the economics of deploying utility-scale renewable energy technologies on St. Thomas/St. John and St. Croix; 2) potential sites for installing roof- and ground-mount PV systems and wind turbines and the impact renewable generation will have on the electrical subtransmission and distribution infrastructure, and 3) the feasibility of a 100- to 200-megawatt power interconnection of the Puerto Rico Electric Power Authority (PREPA), Virgin Islands Water and Power Authority (WAPA), and British Virgin Islands (BVI) grids via a submarine cable system.

Integration of renewable energy into the transport and electricity sectors through V2G

International Nuclear Information System (INIS)

Lund, Henrik; Kempton, Willett

2008-01-01

Large-scale sustainable energy systems will be necessary for substantial reduction of CO 2 . However, large-scale implementation faces two major problems: (1) we must replace oil in the transportation sector, and (2) since today's inexpensive and abundant renewable energy resources have fluctuating output, to increase the fraction of electricity from them, we must learn to maintain a balance between demand and supply. Plug-in electric vehicles (EVs) could reduce or eliminate oil for the light vehicle fleet. Adding 'vehicle-to-grid' (V2G) technology to EVs can provide storage, matching the time of generation to time of load. Two national energy systems are modelled, one for Denmark, including combined heat and power (CHP) and the other a similarly sized country without CHP (the latter being more typical of other industrialized countries). The model (EnergyPLAN) integrates energy for electricity, transport and heat, includes hourly fluctuations in human needs and the environment (wind resource and weather-driven need for heat). Four types of vehicle fleets are modelled, under levels of wind penetration varying from 0% to 100%. EVs were assumed to have high power (10 kW) connections, which provide important flexibility in time and duration of charging. We find that adding EVs and V2G to these national energy systems allows integration of much higher levels of wind electricity without excess electric production, and also greatly reduces national CO 2 emissions

Renewable, ethical? Assessing the energy justice potential of renewable electricity

Directory of Open Access Journals (Sweden)

Aparajita Banerjee

2017-08-01

Full Text Available Energy justice is increasingly being used as a framework to conceptualize the impacts of energy decision making in more holistic ways and to consider the social implications in terms of existing ethical values. Similarly, renewable energy technologies are increasingly being promoted for their environmental and social benefits. However, little work has been done to systematically examine the extent to which, in what ways and in what contexts, renewable energy technologies can contribute to achieving energy justice. This paper assesses the potential of renewable electricity technologies to address energy justice in various global contexts via a systematic review of existing studies analyzed in terms of the principles and dimensions of energy justice. Based on publications including peer reviewed academic literature, books, and in some cases reports by government or international organizations, we assess renewable electricity technologies in both grid integrated and off-grid use contexts. We conduct our investigation through the rubric of the affirmative and prohibitive principles of energy justice and in terms of its temporal, geographic, socio-political, economic, and technological dimensions. Renewable electricity technology development has and continue to have different impacts in different social contexts, and by considering the different impacts explicitly across global contexts, including differences between rural and urban contexts, this paper contributes to identifying and understanding how, in what ways, and in what particular conditions and circumstances renewable electricity technologies may correspond with or work to promote energy justice.

Energy Efficiency and Renewable Energy in SIPs and TIPs

Science.gov (United States)

Tools and guides to encourage state, tribal and local agencies to consider incorporating Energy Efficiency (EE) and Renewable Energy (RE) policies and programs in their State and Tribal Implementation Plans (SIPs/TIPs).

Economical aspects of renewable energy use

International Nuclear Information System (INIS)

Keller, L.

1999-01-01

This article is the summary of a presentation at the exhibition 'Habitat and Garden' at Lausanne (Switzerland) about the effects of renewable energy development on economy and employment. Several studies over this subject do exist and some companies have a considerable know-how in this field. One particularly important question is the impact of non-renewable energy taxes. An answer is available from already published studies: taxes with a yearly yield of 800 millions CHF (about 500 millions USD) would create a net number of 60,000 to 84,000 new jobs, provided that they are integrally used for renewable energy support [de

Consideration on a Low Power Solar Energy Renewable Source

Directory of Open Access Journals (Sweden)

Andrei Marusca

2008-05-01

Full Text Available This paper presents the contribution of theauthors regarding the implementation of a low powersolar energy renewable source. To optimize theconversion efficiency of the solar irradiance intoelectrical energy an embedded system was designed. Theembedded system can accomplish the maximum powerpoint tracking by evaluation the output voltage andcurrent of the photovoltaic panels and calculate a propercommand for the DC-DC converter of the renewablesource. The key device in this system is a midrange 8 bitmicrocontroller that consists of acquisition, commandand control integrated hardware resources.

Potential of renewable and alternative energy sources

Science.gov (United States)

Konovalov, V.; Pogharnitskaya, O.; Rostovshchikova, A.; Matveenko, I.

2015-11-01

The article deals with application potential of clean alternative renewable energy sources. By means of system analysis the forecast for consumption of electrical energy in Tomsk Oblast as well as main energy sources of existing energy system have been studied up to 2018. Engineering potential of renewable and alternative energy sources is evaluated. Besides, ranking in the order of their efficiency descending is performed. It is concluded that Tomsk Oblast has high potential of alternative and renewable energy sources, among which the most promising development perspective is implementation of gasification stations to save fuel consumed by diesel power stations as well as building wind-power plants.

Complex Technical Solution for Renewable Energy

Directory of Open Access Journals (Sweden)

Cristian Paul Chioncel

2010-01-01

Full Text Available This paper presents a complex technical solution for implementing renewable energy, namely: wind, solar photovoltaic and hydraulics. Because wind and solar photovoltaic energy habe a highly random character, it is required to find solution to store the product energy for unfavorable periods, without wind or solar radiations. This could be achieved using the third type of renewable energy, the hydraulic one, obtained from an hydroelectric pumped storage plant (HPSP, located in the imediate vicinity of the wind and solar photovoltaic plant.

Renewable energy

International Nuclear Information System (INIS)

Yoon, Cheon Seok

2009-09-01

This book tells of renewable energy giving description of environment problem, market of renewable energy and vision and economics of renewable energy. It also deals with solar light like solar cell, materials performance, system and merit of solar cell, solar thermal power such as solar cooker and solar collector, wind energy, geothermal energy, ocean energy like tidal power and ocean thermal energy conversion, fuel cell and biomass.

Management of a power system based on renewable energy

Directory of Open Access Journals (Sweden)

Ronay Karoly

2012-06-01

Full Text Available This article main purpose is to highlight the main advantage of the hardware and software implementation for an energy management system based on renewable energy sources. By using implemented and dedicated hardware and software the evolution of energy production and consumption can be monitored. The advantages of such system are highlighted by the results obtained from experimental simulations. An experimental model for the power system based on renewable energy sources was implemented, where the actual status of the system in different situations when the equipments change their own statuses can be shown.

Distribution of decentralized renewable energy resources

International Nuclear Information System (INIS)

Bal, J.L.; Benque, J.P.

1996-01-01

The existence of a great number of inhabitants without electricity, living in areas of low population density, with modest energy requirements and low income provides a major potential market for decentralized renewable energy sources. Ademe and EDF in 1993 made two agreements concerning the development of Renewable Energy Sources. The first aims at promoting their decentralized use in France in pertinent cases. The second agreement concerns other countries and has two ambitions: facilitate short-term developments and produce in the longer term a standardised proposal for decentralized energy production using Renewable Energy Sources to a considerable extent. These ideas are explained, and the principles behind the implementation of both Ademe-EDF agreements as well as their future prospects are described. (R.P.)

Including Alternative Resources in State Renewable Portfolio Standards: Current Design and Implementation Experience

Energy Technology Data Exchange (ETDEWEB)

Heeter, J.; Bird, L.

2012-11-01

Currently, 29 states, the District of Columbia, and Puerto Rico have instituted a renewable portfolio standard (RPS). An RPS sets a minimum threshold for how much renewable energy must be generated in a given year. Each state policy is unique, varying in percentage targets, timetables, and eligible resources. This paper examines state experience with implementing renewable portfolio standards that include energy efficiency, thermal resources, and non-renewable energy and explores compliance experience, costs, and how states evaluate, measure, and verify energy efficiency and convert thermal energy. It aims to gain insights from the experience of states for possible federal clean energy policy as well as to share experience and lessons for state RPS implementation.

Comparing energy storage options for renewable energy integration

DEFF Research Database (Denmark)

Østergaard, Poul Alberg

-inclusive 100% renewable energy scenario developed for the Danish city Aalborg based on wind power, bio-resources and low-temperature geothermal heat. The paper investigates the system impact of different types of energy storage systems including district heating storage, biogas storage and electricity storage......Increasing penetrations of fluctuating energy sources for electricity generation, heating, cooling and transportation increase the need for flexibility of the energy system to accommodate the fluctuations of these energy sources. Controlling production, controlling demand and utilizing storage...... options are the three general categories of measures that may be applied for ensuring balance between production and demand, however with fluctuating energy sources, options are limited, and flexible demand has also demonstrated limited perspective. This paper takes its point of departure in an all...

Renewable energy.

Science.gov (United States)

Destouni, Georgia; Frank, Harry

2010-01-01

The Energy Committee of the Royal Swedish Academy of Sciences has in a series of projects gathered information and knowledge on renewable energy from various sources, both within and outside the academic world. In this article, we synthesize and summarize some of the main points on renewable energy from the various Energy Committee projects and the Committee's Energy 2050 symposium, regarding energy from water and wind, bioenergy, and solar energy. We further summarize the Energy Committee's scenario estimates of future renewable energy contributions to the global energy system, and other presentations given at the Energy 2050 symposium. In general, international coordination and investment in energy research and development is crucial to enable future reliance on renewable energy sources with minimal fossil fuel use.

Public-Private Partnership for Regional Development of Renewable Energy

Directory of Open Access Journals (Sweden)

Andreea ZAMFIR

2011-11-01

Full Text Available This study investigates the public-private partnership as a possible solution for regional development of renewable energy. Firstly, the study reveals the strong connection between renewable energy and sustainable regional development, and secondly, the study discloses some reasons for developing renewable energy through public-private partnerships in Romania’s regions. The findings of this study reveal that there is a strong need for a renewable energy partnership between public authorities, business community and civil society in order to achieve the regional development of renewable energy. The results of this study may be used for upcoming research in the area of implementing renewable energy projects through public-private partnerships in order to achieve sustainable regional development.

Capacity Development and Strengthening for Energy Policy formulation and implementation of Sustainable Energy Projects in Indonesia CASINDO. Deliverable No. 25. Renewable Energy Action Plan of West Nusa Tenggara Province 2010-2025

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-08-15

The overall objective of the CASINDO programme is to establish a self-sustaining and self-developing structure at both the national and regional level to build and strengthen human capacity to enable the provinces of North Sumatra, Yogyakarta, Central Java, West Nusa Tenggara and Papua to formulate sound policies for renewable energy and energy efficiency and to develop and implement sustainable energy projects. This report is expected to become a reference for government and private sectors in the development of renewable energy in West Nusa Tenggara Province, not only the development of renewable energy for electricity generation, but also for other needs such as fuel for industry and cooking fuel for households. The Renewable Energy Action Plan of West Nusa Tenggara Province is a follow-up of the enactment of Presidential Regulation No. 5 Year 2006 concerning National Energy Policy, which the Central Government has set a target utilization of renewable energy by 2025 by 17%. Furthermore, this document contains data and information regarding current utilization of renewable energy, renewable energy potential and development opportunities, target of renewable energy development and action plans necessary to achieve the targets.

Renewable energy for sustainable electrical energy system in India

International Nuclear Information System (INIS)

Mallah, Subhash; Bansal, N.K.

2010-01-01

Present trends of electrical energy supply and demand are not sustainable because of the huge gap between demand and supply in foreseeable future in India. The path towards sustainability is exploitation of energy conservation and aggressive use of renewable energy systems. Potential of renewable energy technologies that can be effectively harnessed would depend on future technology developments and breakthrough in cost reduction. This requires adequate policy guidelines and interventions in the Indian power sector. Detailed MARKAL simulations, for power sector in India, show that full exploitation of energy conservation potential and an aggressive implementation of renewable energy technologies lead to sustainable development. Coal and other fossil fuel (gas and oil) allocations stagnated after the year 2015 and remain constant up to 2040. After the year 2040, the requirement for coal and gas goes down and carbon emissions decrease steeply. By the year 2045, 25% electrical energy can be supplied by renewable energy and the CO 2 emissions can be reduced by 72% as compared to the base case scenario. (author)

Renewables portfolio standard and regional energy structure optimisation in China

International Nuclear Information System (INIS)

Fan, J.; Sun, W.; Ren, D.-M.

2005-01-01

Eastern Coastal areas of China have been developing rapidly since the implementation of reforms and the opening of China's economic markets in 1978. As in most areas of the world, this rapid economic growth has been accompanied by large increases in energy consumption. China's coal-dominated energy structure has resulted in serious ecological and environmental problems. Exploiting renewable energy resources and introducing Renewables Portfolio Standard (RPS) are some of the most important approaches towards optimising and sustaining the energy structure of China. This paper discusses international experiences in the implementation of RPS policies and prospects for using these policies to encourage renewable energy development in China, establishes a concise definition of renewable resources, differentiating between the broad definition (which includes hydro over 25 MW in size) from the narrow definition (which limits the eligibility of hydro to below 25 MW in size), and quantitatively analyses the potential renewable energy target. The research shows that: (1) Under the narrow hydro definition the renewable energy target would be 5.1% and under the broad hydro definition it would be 18.4%. (2) Western China has contributed 90.2% of the total renewable electricity generation in the country (if big and medium hydropowers are not included). Including big and medium hydropower, the figure is 63.8%. (3) Eastern electricity companies can achieve their quota by buying Tradable Renewable Energy Certificates (TRCs or Green Certificates) and by exploiting renewable energy resources in Western China. The successful implementation of the RPS policy will achieve the goal of sharing the benefits and responsibilities of energy production between the different regions of China

Advanced mechanisms for the promotion of renewable energy-Models for the future evolution of the German Renewable Energy Act

International Nuclear Information System (INIS)

Langniss, Ole; Diekmann, Jochen; Lehr, Ulrike

2009-01-01

The German Renewable Energy Act (EEG) has been very successful in promoting the deployment of renewable electricity technologies in Germany. The increasing share of EEG power in the generation portfolio, increasing amounts of fluctuating power generation, and the growing European integration of power markets governed by competition calls for a re-design of the EEG. In particular, a more efficient system integration and commercial integration of the EEG power is needed to, e.g. better matching feed-in to demand and avoiding stress on electricity grids. This article describes three different options to improve the EEG by providing appropriate incentives and more flexibility to the promotion mechanism and the quantitative compensation scheme without jeopardising the fast deployment of renewable energy technologies. In the 'Retailer Model', it becomes the responsibility of the end-use retailers to adapt the EEG power to the actual demand of their respective customers. The 'Market Mediator Model' establishes an independent market mediator responsible to market the renewable electricity. This model is the primary choice when new market entrants are regarded as crucial for the better integration of renewable energy and enhanced competition. The 'Optional Bonus Model' relies more on functioning markets since power plant operators can alternatively choose to market the generated electricity themselves with a premium on top of the market price instead of a fixed price

Sizing Study of Second Life Li-ion Batteries for Enhancing Renewable Energy Grid Integration

DEFF Research Database (Denmark)

Saez-de-Ibarra, Andoni; Martinez-Laserna, Egoitz; Stroe, Daniel Loan

2016-01-01

Renewable power plants must comply with certain codes and requirements to be connected to the grid, being the ramp rate compliance one of the most challenging requirements, especially for photovoltaic or wind energy generation plants. Battery based energy storage systems represent a promising...... economically viable, the use of second life batteries is investigated in the present work. This paper proposes a method to determine the optimal sizing of a second life battery energy storage system (SLBESS). SLBESS performance is also validated and, as an ultimate step, the power exchanged with the batteries...... solution due to the fast dynamics of electrochemical storage systems, besides their scalability and flexibility. However, large-scale battery energy storage systems are still too expensive to be a mass market solution for the renewable energy resources integration. Thus, in order to make battery investment...

Integrated Agent-Based and Production Cost Modeling Framework for Renewable Energy Studies: Preprint

Energy Technology Data Exchange (ETDEWEB)

Gallo, Giulia

2015-10-07

The agent-based framework for renewable energy studies (ARES) is an integrated approach that adds an agent-based model of industry actors to PLEXOS and combines the strengths of the two to overcome their individual shortcomings. It can examine existing and novel wholesale electricity markets under high penetrations of renewables. ARES is demonstrated by studying how increasing levels of wind will impact the operations and the exercise of market power of generation companies that exploit an economic withholding strategy. The analysis is carried out on a test system that represents the Electric Reliability Council of Texas energy-only market in the year 2020. The results more realistically reproduce the operations of an energy market under different and increasing penetrations of wind, and ARES can be extended to address pressing issues in current and future wholesale electricity markets.

Lancashire and Yorkshire Renewable Energy Planning Study

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-07-01

The central aims of the Lancashire and Yorkshire Renewable Energy Planning Study (LYREPS) are to: identify renewable energy resources in the region and evaluate the opportunities for their deployment; promote a local-level development plan policy framework for the utilisation of renewable energy sources which is fully integrated with established land use and economic development strategies in the region. The availability of the following resources was investigated: landfill gas; municipal and industrial wastes; animal slurry; biomass; straw; active solar; passive solar design; photovoltaics; hydro; and wind. (author)

Integrating recycling, renewable energy and agriculture for commercial waste to wealth businesses

International Nuclear Information System (INIS)

Gan Khai Chung; Angeline Pang

2010-01-01

Recycling organic material to produce renewable energy and organic fertilizer is an attractive business model in waste to wealth business proposition. Azed Bina Sdn Bhd has developed an integrated recycling facility to recycle solid organic materials into energy and organic fertilizer, a project partially funded by MOSTI TechnoFund in 2008. The novel and innovative aspect is the water disassociation technology which separates the water into hydrogen gas and oxygen gas economically using thermal heat from the burning of biomass which is a waste material. This system is modular, scalable, economical and environmental friendly. It has many applications in the field of, Environment and Solid Waste Management - recycling organic waste into energy and organic fertilizer rather than disposal at the landfill, hence preserving our environment. Green technology - economical biogas production consists of 50% hydrogen gas which is a clean and renewable energy source. The biogas has many applications in the food industry, manufacturing industry and agriculture sector. Agro-based industry - production of clean heat energy is useful for the drying of agriculture crops. Agriculture Sector - production of ash can be used to produce organic fertilizer by incorporating effective microbes. Reduce the dependence on chemical fertilizer which is bad for the environment Rural Development - developing rural area by integrating small scale industries, agro based industry, agriculture and rural area. The company commercial applications of recycling organic materials to produce energy for companies such as laundry business, agro based food drying and waste management recycling. The next project is to provide chilled water using organic waste. (author)

Renewable Energy

DEFF Research Database (Denmark)

Sørensen, Bent Erik

Bent Sorensen’s Renewable Energy: Physics, Engineering, Environmental Impacts, Economics and Planning, Fifth Edition, continues the tradition by providing a thorough and current overview of the entire renewable energy sphere. Since its first edition, this standard reference source helped put...... renewable energy on the map of scientific agendas. Several renewable energy solutions no longer form just a marginal addition to energy supply, but have become major players, with the promise to become the backbone of an energy system suitable for life in the sustainability lane. This volume is a problem...... structured around three parts in order to assist readers in focusing on the issues that impact them the most for a given project or question. PART I covers the basic scientific principles behind all major renewable energy resources, such as solar, wind, and biomass. PART II provides in-depth information...

Introduction to Renewable Energy Systems

DEFF Research Database (Denmark)

Ma, Ke; Yang, Yongheng; Blaabjerg, Frede

2014-01-01

. It is concluded that as the quick development of renewable energy, wind power and PV power both show great potential to be largely integrated into the power grid. Power electronics is playing essential role in both of the systems to achieve more controllable, efficient, and reliable energy production......In this chapter, the state-of-the-arts developments of renewable energy are reviewed in respect to the installed power and market share, where wind power and photovoltaic power generation are the main focuses due to the fast growing speed and large share of installed capacity. Some basic principles...... of operation, mission profiles, as well as power electronics solutions and corresponding controls are discussed respectively in the case of wind power and photovoltaic power systems. Finally a few development trends for renewable energy conversions are also given from a power electronics point of view...

Renewable energy - its potential and limitations

International Nuclear Information System (INIS)

Read, W.R.

1990-01-01

Several renewable energy options are discussed, namely solar energy, passive solar systems, photovoltaics, wind energy and biomass. Although technical feasibility has been shown for various systems, there has been slow growth in their implementation. Some aspects of this slow growth are in the domains of economic viability, long term reliability, the training of operators and installers, public perception and education and govenmental attitudes. It is estimated that the increased use of renewable energy depends on several factors which include government policies, funding, energy conservation, pricing policies, reliable commercial products, public education and adequate training. 11 refs

Optimal Scheduling of a Battery Energy Storage System with Electric Vehicles’ Auxiliary for a Distribution Network with Renewable Energy Integration

Directory of Open Access Journals (Sweden)

Yuqing Yang

2015-09-01

Full Text Available With global conventional energy depletion, as well as environmental pollution, utilizing renewable energy for power supply is the only way for human beings to survive. Currently, distributed generation incorporated into a distribution network has become the new trend, with the advantages of controllability, flexibility and tremendous potential. However, the fluctuation of distributed energy resources (DERs is still the main concern for accurate deployment. Thus, a battery energy storage system (BESS has to be involved to mitigate the bad effects of DERs’ integration. In this paper, optimal scheduling strategies for BESS operation have been proposed, to assist with consuming the renewable energy, reduce the active power loss, alleviate the voltage fluctuation and minimize the electricity cost. Besides, the electric vehicles (EVs considered as the auxiliary technique are also introduced to attenuate the DERs’ influence. Moreover, both day-ahead and real-time operation scheduling strategies were presented under the consideration with the constraints of BESS and the EVs’ operation, and the optimization was tackled by a fuzzy mathematical method and an improved particle swarm optimization (IPSO algorithm. Furthermore, the test system for the proposed strategies is a real distribution network with renewable energy integration. After simulation, the proposed scheduling strategies have been verified to be extremely effective for the enhancement of the distribution network characteristics.

A renewables-based South African energy system?

CSIR Research Space (South Africa)

Bischof-Niemz, T

2015-12-01

Full Text Available in electricity mix from 75 to 50% by 2025 That's a reduction by 140 TWh/yr of nuclear power generation, which is the same amount of energy produced by 10 Koebergs This energy will be replaced by renewables This emphasises again the recently achieved cost...-competitiveness of renewableshttp://www.world-nuclear-news.org/NP-French- energy-transition-bill-adopted-2307155.html 8Agenda International context Renewables in South Africa Extreme renewables scenarios 9Integrated Resource Plan 2010 (IRP 2010): Plan of the power generation mix...

Renewable Energy Devices and Systems

DEFF Research Database (Denmark)

Blaabjerg, Frede; Ionel, Dan M.

2015-01-01

In this paper, essential statistics demonstrating the increasing role of renewable energy generation are firstly discussed. A state of the art review section covers fundamentals of wind turbines and PV systems. Included are schematic diagrams illustrating the main components and system topologies...... and the fundamental and increasing role of power electronics as an enabler for renewable energy integration, and for the future power system and smart grid. Recent examples of research and development, including new devices and system installations for utility power plants, as well for as residential and commercial......, fuel cells, and storage with batteries and hydrogen, respectively. Recommended further readings on topics of electric power engineering for renewable energy are included in a final section. This paper also represents an editorial introduction for two special issues of the Electric Power Component...

BIPV design study for Renewable Energy Centre and Eco-Energy House

Energy Technology Data Exchange (ETDEWEB)

Riffat, S.B.; Wilson, R.; Omer, S. [University of Nottingham (United Kingdom). School of the Built Environment

2000-07-01

The aim of this project was to monitor performance of PV systems on the Renewable Energy Centre and the Eco-Energy House at the School of Built Environment, University of Nottingham. The Renewable Energy Centre was constructed using a cash donation from Beacon Energy Limited, while construction of the Eco-Energy House was funded by David Wilson Homes Ltd. The primary role of these facilities is to assist in renewable energy technology transfer. Both buildings were designed to be thermally efficient and utilize a range of renewable energy systems. They will be used to attract and educate visitors from local government, schools and collages, and the general public. This report documents the design process for Building Integrated Photovoltaic (BIPV) systems on the two buildings. The buildings are significantly different in both construction and occupancy but are sited close to each other and share similar weather conditions. The rationale behind the BIPV designs is explained and detail is provided on the final solutions for each building. A number of methods were used to assist in the selection of appropriate PV systems to integrate into each building. These included energy analysis using PVSYST3 software, CAD modelling for aesthetics assessment, architectural and construction considerations and economic justification. The design chosen for Renewable Energy Centre was a vertical wall PV facade system using thin film technology, while a roof integrated system using monocrystalline PV roofing slates was chosen for the Eco-Energy House. In terms of economic justification, both systems cannot be said to be cost effective at the current market price for energy, however, the aim was to bring the technology to the attention of a wide audience and demonstrate the potential of the systems for reducing CO{sub 2} emission to the environment.

Databases in Cloud - Solutions for Developing Renewable Energy Informatics Systems

Directory of Open Access Journals (Sweden)

Adela BARA

2017-08-01

Full Text Available The paper presents the data model of a decision support prototype developed for generation monitoring, forecasting and advanced analysis in the renewable energy filed. The solutions considered for developing this system include databases in cloud, XML integration, spatial data representation and multidimensional modeling. This material shows the advantages of Cloud databases and spatial data representation and their implementation in Oracle Database 12 c. Also, it contains a data integration part and a multidimensional analysis. The presentation of output data is made using dashboards.

Statistical Analysis of Development Trends in Global Renewable Energy

Directory of Open Access Journals (Sweden)

Marina D. Simonova

2016-01-01

Full Text Available The article focuses on the economic and statistical analysis of industries associated with the use of renewable energy sources in several countries. The dynamic development and implementation of technologies based on renewable energy sources (hereinafter RES is the defining trend of world energy development. The uneven distribution of hydrocarbon reserves, increasing demand of developing countries and environmental risks associated with the production and consumption of fossil resources has led to an increasing interest of many states to this field. Creating low-carbon economies involves the implementation of plans to increase the proportion of clean energy through renewable energy sources, energy efficiency, reduce greenhouse gas emissions. The priority of this sector is a characteristic feature of modern development of developed (USA, EU, Japan and emerging economies (China, India, Brazil, etc., as evidenced by the inclusion of the development of this segment in the state energy strategies and the revision of existing approaches to energy security. The analysis of the use of renewable energy, its contribution to value added of countries-producers is of a particular interest. Over the last decade, the share of energy produced from renewable sources in the energy balances of the world's largest economies increased significantly. Every year the number of power generating capacity based on renewable energy is growing, especially, this trend is apparent in China, USA and European Union countries. There is a significant increase in direct investment in renewable energy. The total investment over the past ten years increased by 5.6 times. The most rapidly developing kinds are solar energy and wind power.

The Renewable Energy In Vietnam Potential Development Orientation

OpenAIRE

Van Vang Le; Danh Chan Nguyen; Van Huong Dong

2017-01-01

Up to 2014 the development of renewable energy in Vietnam has undergone a process of nearly three decades with many ups and downs. This change depends on the concern of the state Ministries in research development project implementation and financial support for renewable energy development. It is easy to see that only when the development of renewable energy has the attention and direction of the state through a policy system a unified program the proper funding of the budget and Internation...

Energy models for commercial energy prediction and substitution of renewable energy sources

International Nuclear Information System (INIS)

Iniyan, S.; Suganthi, L.; Samuel, Anand A.

2006-01-01

In this paper, three models have been projected namely Modified Econometric Mathematical (MEM) model, Mathematical Programming Energy-Economy-Environment (MPEEE) model, and Optimal Renewable Energy Mathematical (OREM) model. The actual demand for coal, oil and electricity is predicted using the MEM model based on economic, technological and environmental factors. The results were used in the MPEEE model, which determines the optimum allocation of commercial energy sources based on environmental limitations. The gap between the actual energy demand from the MEM model and optimal energy use from the MPEEE model, has to be met by the renewable energy sources. The study develops an OREM model that would facilitate effective utilization of renewable energy sources in India, based on cost, efficiency, social acceptance, reliability, potential and demand. The economic variations in solar energy systems and inclusion of environmental constraint are also analyzed with OREM model. The OREM model will help policy makers in the formulation and implementation of strategies concerning renewable energy sources in India for the next two decades

Renewable Energy Policy Country Profiles. 2011 version

Energy Technology Data Exchange (ETDEWEB)

Teckenburg, E.; Rathmann, M.; Winkel, T. [ECOFYS, Utrecht (Netherlands); Ragwitz, M.; Steinhilber, S. [Fraunhofer Institute for Systems and Innovation Research ISI, Karlsruhe (Germany); Resch, G.; Panzer, C.; Busch, S. [Energy Economics Group EEG, Technical University Vienna, Vienna (Austria); Konstantinaviciute, I. [Lithuanian Energy Institute, Kaunas (Lithuania)

2011-08-15

The core objective of the project RE-Shaping is to assist Member State (MS) governments in preparing for the implementation of Directive 2009/28/EC and to guide a European policy for RES in the mid- to long term. The past and present success of policies for renewable energies will be evaluated and recommendations derived to improve future RES support schemes. The effectiveness and the efficiency of current and future RES support schemes is analysed with specific focus on a single European market for renewable electricity products. Current best practices are identified, and (future) costs of RES and the corresponding support necessary to initiate stable growth are assessed. Better integration of RES policies with climate and innovation policy as well as liberalised energy markets will be analysed and promoted. Options for flexibility between Member States will be analysed. The future deployment of RES in each MS will be calculated based on the Green-X model to assist MS in implementing national action plans and to support a long term vision of the European RES policy. The latter will be based on an in-depth analysis of the long term RES potentials and costs. The impact of policies on risks for RES financing will be analysed and improved policies and financing instruments will be proposed.

A pre-feasibility case study on integrated resource planning including renewables

International Nuclear Information System (INIS)

Yilmaz, Pelin; Hakan Hocaoglu, M.; Konukman, Alp Er S.

2008-01-01

In recent years, economical and environmental constraints force governments and energy policy decision-makers to change the prominent characteristics of the electricity markets. Accordingly, depending on local conditions on the demand side, usage of integrated resource planning approaches in conjunction with renewable technologies has gained more importance. In this respect, an integrated resource planning option, which includes the design and optimization of grid-connected renewable energy plants, should be evaluated to facilitate a cost-effective and green solution to a sustainable future. In this paper, an integrated resource planning case is studied for an educational campus, located in Gebze, Turkey. It is found that for the considered campus, the integrated resource planning scenario that includes renewables as a supply-side option with existing time-of-use tariff may provide a cost-effective energy production, particularly for the high penetration level of the renewables

Including alternative resources in state renewable portfolio standards: Current design and implementation experience

International Nuclear Information System (INIS)

Heeter, Jenny; Bird, Lori

2013-01-01

As of October 2012, 29 states, the District of Columbia, and Puerto Rico have instituted a renewable portfolio standard (RPS). Each state policy is unique, varying in percentage targets, timetables, and eligible resources. Increasingly, new RPS polices have included alternative resources. Alternative resources have included energy efficiency, thermal resources, and, to a lesser extent, non-renewables. This paper examines state experience with implementing renewable portfolio standards that include energy efficiency, thermal resources, and non-renewable energy and explores compliance experience, costs, and how states evaluate, measure, and verify energy efficiency and convert thermal energy. It aims to gain insights from the experience of states for possible federal clean energy policy as well as to share experience and lessons for state RPS implementation. - Highlights: • Increasingly, new RPS policies have included alternative resources. • Nearly all states provide a separate tier or cap on the quantity of eligible alternative resources. • Where allowed, non-renewables and energy efficiency are being heavily utilized

Renewable Energy in Romania after 2007

Directory of Open Access Journals (Sweden)

Daniela Enachescu

2016-07-01

Full Text Available Sustainable development requires obtaining energy from alternative sources which are clean and sustainable. In Romania, there are categories of renewable energy that basically were not used, such as solar PV and wind energy by 2007. Even today, their share is minor compared to energy from conventional sources, but they were made important steps, including in legislation domain. The paper aims to present the evolution of renewable energy in Romania after 2007, as a result of EU integration. The analysis is done separately for installed capacity in the following chapters: Hydropower, Wind Onshore, Solid biomass, Solar Photovoltaic and Biogas.

The renewable energy resources in Bulgaria

International Nuclear Information System (INIS)

Ivanov, P.; Lingova, S.; Trifonova, L.

1996-01-01

The paper presents the results from the joint study between the National Laboratory of Renewable Energy Resources of USA and the National Institute of Meteorology and Hydrology, Sofia (BG). The geographical distribution of solar and wind energy potential in Bulgaria as well as inventory of biomass is studied. Calculation of total, available and reserve solar and wind resources is performed. Comparative data on all kind of renewable energy resources in Bulgaria are presented. The evaluation of economically accessible resources and feasibility of implementation of specific technologies is given. 7 refs., 1 tab

Assessment of renewable energy potential. Calculation model “AREP-LP”

International Nuclear Information System (INIS)

Penchev, Alexander

2011-01-01

Introduction Bulgaria is a country rich in renewable energy sources. There are all types of RES including: solar, geothermal, biomass, wind energy and hydropower. Per capita it ranks among the top in Europe. Bulgaria's target for 2020 is 16% of final consumption of electricity should be from renewable energy. To achieve this goal, the first and most important task is assessing the potential of renewable energy and its geographical distribution. Creating a database of renewable energy is essential for implementation of investment projects in this area. Key words: Renewable Energy (RES), Renewable Technologies (RET), Theoretical Potential, Technical Potential, Municipalities, Regions, Energy Planning(EP), Emission Reduction (EmR), Market Assessment (MA), Data base(DB)

Data for Renewable Energy Planning, Policy, and Investment

Energy Technology Data Exchange (ETDEWEB)

Cox, Sarah L [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-10-17

Reliable, robust, and validated data are critical for informed planning, policy development, and investment in the clean energy sector. The Renewable Energy (RE) Explorer was developed to support data-driven renewable energy analysis that can inform key renewable energy decisions globally. This document presents the types of geospatial and other data at the core of renewable energy analysis and decision making. Individual data sets used to inform decisions vary in relation to spatial and temporal resolution, quality, and overall usefulness. From Data to Decisions, a complementary geospatial data and analysis decision guide, provides an in-depth view of these and other considerations to enable data-driven planning, policymaking, and investment. Data support a wide variety of renewable energy analyses and decisions, including technical and economic potential assessment, renewable energy zone analysis, grid integration, risk and resiliency identification, electrification, and distributed solar photovoltaic potential. This fact sheet provides information on the types of data that are important for renewable energy decision making using the RE Data Explorer or similar types of geospatial analysis tools.

SMUD Community Renewable Energy Deployment Final Report

Energy Technology Data Exchange (ETDEWEB)

Sison-Lebrilla, Elaine [Sacramento Municipal Utility District, Sacramento, CA (United States); Tiangco, Valentino [Sacramento Municipal Utility District, Sacramento, CA (United States); Lemes, Marco [Sacramento Municipal Utility District, Sacramento, CA (United States); Ave, Kathleen [Sacramento Municipal Utility District, Sacramento, CA (United States)

2015-06-08

This report summarizes the completion of four renewable energy installations supported by California Energy Commission (CEC) grant number CEC Grant PIR-11-005, the US Department of Energy (DOE) Assistance Agreement, DE-EE0003070, and the Sacramento Municipal Utility District (SMUD) Community Renewable Energy Deployment (CRED) program. The funding from the DOE, combined with funding from the CEC, supported the construction of a solar power system, biogas generation from waste systems, and anaerobic digestion systems at dairy facilities, all for electricity generation and delivery to SMUD’s distribution system. The deployment of CRED projects shows that solar projects and anaerobic digesters can be successfully implemented under favorable economic conditions and business models and through collaborative partnerships. This work helps other communities learn how to assess, overcome barriers, utilize, and benefit from renewable resources for electricity generation in their region. In addition to reducing GHG emissions, the projects also demonstrate that solar projects and anaerobic digesters can be readily implemented through collaborative partnerships. This work helps other communities learn how to assess, overcome barriers, utilize, and benefit from renewable resources for electricity generation in their region.

Renewable energy and the need for local energy markets

DEFF Research Database (Denmark)

Hvelplund, Frede

2006-01-01

green energy policy should be introduced in order to secure both public and political acceptance. Local markets should be established in order to secure the technical integration of a large proportion of wind power and other fluctuating renewable energy sources into the energy system....

Multifunctional voltage source inverter for renewable energy integration and power quality conditioning.

Science.gov (United States)

Dai, NingYi; Lam, Chi-Seng; Zhang, WenChen

2014-01-01

In order to utilize the energy from the renewable energy sources, power conversion system is necessary, in which the voltage source inverter (VSI) is usually the last stage for injecting power to the grid. It is an economical solution to add the function of power quality conditioning to the grid-connected VSI in the low-voltage distribution system. Two multifunctional VSIs are studied in this paper, that is, inductive-coupling VSI and capacitive-coupling VSI, which are named after the fundamental frequency impedance of their coupling branch. The operation voltages of the two VSIs are compared when they are used for renewable energy integration and power quality conditioning simultaneously. The operation voltage of the capacitive-coupling VSI can be set much lower than that of the inductive-coupling VSI when reactive power is for compensating inductive loads. Since a large portion of the loads in the distribution system are inductive, the capacitive-coupling VSI is further studied. The design and control method of the multifunctional capacitive-coupling VSI are proposed in this paper. Simulation and experimental results are provided to show its validity.

Renewable Energy Zones for the Africa Clean Energy Corridor

Energy Technology Data Exchange (ETDEWEB)

Wu, Grace C. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Deshmukh, Ranjit [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Ndhlukula, Kudakwashe [International Renewable Energy Agency (IRENA), Abu Dhabi (United Arab Emirates); Radojicic, Tijana [International Renewable Energy Agency (IRENA), Abu Dhabi (United Arab Emirates); Reilly, Jessica [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

2015-07-01

Multi-criteria Analysis for Planning Renewable Energy (MapRE) is a study approach developed by the Lawrence Berkeley National Laboratory with the support of the International Renewable Energy Agency (IRENA). The approach combines geospatial, statistical, energy engineering, and economic methods to comprehensively identify and value high-quality wind, solar PV, and solar CSP resources for grid integration based on techno-economic criteria, generation profiles (for wind), and socio-environmental impacts. The Renewable Energy Zones for the Africa Clean Energy Corridor study sought to identify and comprehensively value high-quality wind, solar photovoltaic (PV), and concentrating solar power (CSP) resources in 21 countries in the East and Southern Africa Power Pools to support the prioritization of areas for development through a multi-criteria planning process. These countries include Angola, Botswana, Burundi, Djibouti, Democratic Republic of Congo, Egypt, Ethiopia, Kenya, Lesotho, Libya, Malawi, Mozambique, Namibia, Rwanda, South Africa, Sudan, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe. The study includes the methodology and the key results including renewable energy potential for each region.

Equilibrium Transitions from Non Renewable Energy to Renewable Energy under Capacity Constraints

OpenAIRE

Amigues, Jean-Pierre; Ayong Le Kama, Alain; Moreaux, Michel

2013-01-01

We study the transition between non-renewable and renewable energy sources with adjustment costs over the production capacity of renewable energy. Assuming constant variable marginal costs for both energy sources, convex adjustment costs and a more expensive renewable energy, we show the following. With sufficiently abundant non-renewable energy endowments, the dynamic equilibrium path is composed of a first time phase of only non-renewable energy use followed by a transition phase substituti...

An energy self-sufficient public building using integrated renewable sources and hydrogen storage

International Nuclear Information System (INIS)

Marino, C.; Nucara, A.; Pietrafesa, M.; Pudano, A.

2013-01-01

The control of the use of fossil fuels, major cause of greenhouse gas emissions and climate changes, in present days represents one of Governments' main challenges; particularly, a significant energy consumption is observed in buildings and might be significantly reduced through sustainable design, increased energy efficiency and use of renewable sources. At the moment, the widespread use of renewable energy in buildings is limited by its intrinsic discontinuity: consequently integration of plants with energy storage systems could represent an efficient solution to the problem. Within this frame, hydrogen has shown to be particularly fit in order to be used as an energetic carrier. In this aim, in the paper an energetic, economic and environmental analysis of two different configurations of a self-sufficient system for energy production from renewable sources in buildings is presented. In particular, in the first configuration energy production is carried out by means of photovoltaic systems, whereas in the second one a combination of photovoltaic panels and wind generators is used. In both configurations, hydrogen is used as an energy carrier, in order to store energy, and fuel cells guarantee its energetic reconversion. The analysis carried out shows that, although dimensioned as a stand-alone configuration, the system can today be realized only taking advantage from the incentivizing fares applied to grid-connected systems, that are likely to be suspended in the next future. In such case, it represents an interesting investment, with capital returns in about 15 years. As concerns economic sustainability, in fact, the analysis shows that the cost of the energy unit stored in hydrogen volumes, due to the not very high efficiency of the process, presently results greater than that of directly used one. Moreover, also the starting fund of the system proves to be very high, showing an additional cost with respect to systems lacking of energy storage equal to about 50

MARKAL Application for Analysis of Energy Efficiency in Economic Activities of the Republic of Moldova and Feasible use of Renewable Energy Sources

OpenAIRE

Robu, Sergiu; Bikova, Elena; Siakkis, Philip; Giannakidis, George

2010-01-01

The paper presents results of analyses of energy efficiency measures and renewable energy sources implementation in the Republic of Moldova using MARKAL model. Detailed analyses of four scenarios are presented for: Reference Scenario; Energy Efficiency Scenario; Renewable Energy Sources Scenario; Energy Efficiency&Renewable Energy Scenario. Energy savings and costs are identified for implementation of renewable energy sources and Energy efficiency measures.

Renewable energy projects in Croatia: Present situation and future activities

Directory of Open Access Journals (Sweden)

Granić Goran

2007-01-01

Full Text Available Renewable energy sources should play an important role in the promotion of numerous Croatian energy goals. The development of a successful sector of renewable could in the long run contribute to energy efficiency improvement, diversification of production and supply safety, domestic production and lesser imports of energy sources and significant reduction of the environmental influences. Targets and strategy of the implementation for every renewable energy resource depends on the specifics of the particular one, with general trends in the European Union of renewable resource ratio increase in the energy balance.

Multi-technology control centre to integrate 460 MW renewables

International Nuclear Information System (INIS)

2016-01-01

The new RWE Innogy Aersa Control Centre that has been certified to act as an interface with CECRE (the Renewable Energy Control Centre) since February 2015, connects RWE’s 20 renewable energy facilities with REE, the Spanish Electricity Grid. As a result, it ensures that wind farms, in addition to hydropower and solar plants, can inject the energy generated by its 460 MW installed safely and with no penalties. Green Eagle Solutions, a provider of software solutions for renewable energy companies, has collaborated with RWE in the development of this Control Centre, meeting the high standards of quality and safety required by RWE. This centre uses CompactSCADA® technology to integrate power generation facilities that need to be integrated in a Control Centre to communicate with REE’s CECRE. (Author)

Renewable energy activities in Senegal: a review

International Nuclear Information System (INIS)

Youm, I.; Sarr, J.; Kane, M.M.; Sall, M.

2000-01-01

Like many countries in Africa, Senegal is facing economical decline, energy crisis and serious desertification problem in rural areas. These issues could be removed if renewable energy is used as a primary source of energy in rural areas. What is required is a strategy to implement renewable energy technologies at large scale. The government and many non-governmental organisations (NGOs) have tried to comprehend and have strived to address the problem of energy. This paper present a review of activities in the field of renewable energy applications in Senegal, which goes back to the mid 1970s and will discuss the socio-economic benefits that the country has derived from these environmentally sound and appropriate sources of energy. The development and trial of systems were mostly funded so far by donor agencies in collaboration with government and NGOs. Among the applications being supported are solar lighting, water pumping and small power plants. Recent efforts have been aimed at restructuring the programmes and giving them a market orientation. Future trends, some suggestion and recommendations for successful dissemination of renewable energy sources are also drawn. The present situation is seen to be much more promising and favourable for renewable energy. (Author)

Modeling the optimal energy mix in 2030 : Impact of the integration of renewable energy sources

OpenAIRE

Arthur, Camu

2016-01-01

The European Council has recently set objectives in the matter of energy and climate policies and thus the interest in renewable energies is more than ever at stake. However, the introduction of renewable energies in an energy mix is also accelerated and altered by political targets. The two most widespread renewable technologies, photovoltaic and wind farms, have specific characteristics - decentralized, intermittency, uncertain production forecast up until a few hours ahead - that oblige to...

Role of Renewable Energy Certificates in Developing New Renewable Energy Projects

Energy Technology Data Exchange (ETDEWEB)

Holt, E.; Sumner, J.; Bird, L.

2011-06-01

For more than a decade, renewable energy certificates (RECs) have grown in use, becoming a common way to track ownership of the renewable and environmental attributes of renewable electricity generation. In recent years, however, questions have risen about the role RECs play in the decision to build new renewable energy projects. Information from a variety of market participants suggests that the importance of RECs in building new projects varies depending on a number of factors, including electricity market prices, the cost-competitiveness of the project, the presence or absence of public policies supportive of new projects, contract duration, and the perspective of different market participants. While there is no single answer to the role that RECs play, there are situations in which REC revenues are essential to project economics, as well as some where REC revenues may have little impact. To strengthen the role RECs play in both compliance and voluntary markets, there are a number of options that could be considered. In compliance markets, lawmakers or regulators would have to adopt measures that strengthen the role of RECs in the development of new projects, while in voluntary markets, it would be up to program leaders and market participants themselves to implement measures.

Financing investments in renewable energy: the impacts of policy design

International Nuclear Information System (INIS)

Wiser, Ryan H.; Pickle, Steven J.

1998-01-01

The costs of electric power projects utilising renewable energy technologies (RETs) are highly sensitive to financing terms. Consequently, as the electricity industry is restructured and new renewables policies are created, it is important for policymakers to consider the impacts of renewables policy design on RET financing. This paper reviews the power plant financing process for renewable energy projects, estimates the impact of financing terms on levelised energy costs, and provides insights to policymakers on the important nexus between renewables policy design and financing. We review five case studies of renewable energy policies, and find that one of the key reasons that RET policies are not more effective is that project development and financing processes are frequently ignored or misunderstood when designing and implementing renewable energy policies. The case studies specifically show that policies that do no provide long-term stability or that have negative secondary impacts on investment decisions will increase financing costs, sometimes dramatically reducing the effectiveness of the program. Within U.S. electricity restructuring proceedings, new renewable energy policies are being created, and restructuring itself is changing the way RETs are financed. As these new policies are created and implemented, it is essential that policymakers acknowledge the financing difficulties faced by renewables developer and pay special attention to the impacts of renewables policy design on financing. As shown in this paper, a renewables policy that is carefully designed can reduce renewable energy costs dramatically by providing revenue certainty that will, in turn, reduce financing risk premiums. (Author)

Renewable energy action plan. Policy action plan for promotion of renewable energy in the Czech Republic to 2010

International Nuclear Information System (INIS)

1999-08-01

Energy efficiency and renewable energy production contribute to the three major goals of the national energy policy of the Czech Republic: overall competitiveness, security of supply; and environmental protection. Therefore, the Czech government promotes these two sustainable options. The Energy Policy White Paper, which is being developed at the time of writing (June 1999), will provide the general framework for the future role of energy efficiency and renewable energy in the Czech Republic. However, in addition, it is necessary to develop specific policies. The National Energy Efficiency Study aimed to support the Czech government in the formula tion of energy efficiency and renewable energy policy. The National Energy Efficiency Study has resulted in the following documents: (1) The Renewable Energy Action Plan (this report) addresses renewable energy production. The Energy Efficiency Action Plan focuses on the promotion of energy efficiency in end use (separate report; ECN-C--99-065). These two Action Plans provide policy makers in the Czech government with information on potentials, targets, budgets and recommended policy instruments. The core of the Action Plans is the list of concrete policy actions, ready for implementation; (2) The National Energy Efficiency Study NEES (separate report; ECN-C--99-063). This report is the background document to the two Action Plans. It contains detailed information on options and measures, potentials, barriers and policy instruments for energy efficiency and renewables. The main part is a detailed outline for a new energy efficiency and renewable policy. Also, it includes recommendations for financing schemes to overcome the invest ment constraints in the Czech Republic. Finally, a list of concrete projects is included to support project identification

Designing an energy planning concept for enhancing the dissemination of renewable energy technologies in developing countries

DEFF Research Database (Denmark)

Lybæk, Rikke; Andersen, Jan; Lund, Søren

2014-01-01

This paper stresses the need for adapting a sustainable energy planning concept, which can support the implementation of renewable energy in developing countries; exemplified by a Vietnamese case. Many developing countries heavily rely on fossil fuel resources and will face energy supply security...... countries, while relevant policies, tools and plans etc. simultaneously are being deployed, enhancing the framework conditions for renewable energy implementation...

A logistic regression approach to model the willingness of consumers to adopt renewable energy sources

Science.gov (United States)

Ulkhaq, M. M.; Widodo, A. K.; Yulianto, M. F. A.; Widhiyaningrum; Mustikasari, A.; Akshinta, P. Y.

2018-03-01

The implementation of renewable energy in this globalization era is inevitable since the non-renewable energy leads to climate change and global warming; hence, it does harm the environment and human life. However, in the developing countries, such as Indonesia, the implementation of the renewable energy sources does face technical and social problems. For the latter, renewable energy sources implementation is only effective if the public is aware of its benefits. This research tried to identify the determinants that influence consumers’ intention in adopting renewable energy sources. In addition, this research also tried to predict the consumers who are willing to apply the renewable energy sources in their houses using a logistic regression approach. A case study was conducted in Semarang, Indonesia. The result showed that only eight variables (from fifteen) that are significant statistically, i.e., educational background, employment status, income per month, average electricity cost per month, certainty about the efficiency of renewable energy project, relatives’ influence to adopt the renewable energy sources, energy tax deduction, and the condition of the price of the non-renewable energy sources. The finding of this study could be used as a basis for the government to set up a policy towards an implementation of the renewable energy sources.

The impact of future energy demand on renewable energy production – Case of Norway

International Nuclear Information System (INIS)

Rosenberg, Eva; Lind, Arne; Espegren, Kari Aamodt

2013-01-01

Projections of energy demand are an important part of analyses of policies to promote conservation, efficiency, technology implementation and renewable energy production. The development of energy demand is a key driver of the future energy system. This paper presents long-term projections of the Norwegian energy demand as a two-step methodology of first using activities and intensities to calculate a demand of energy services, and secondly use this as input to the energy system model TIMES-Norway to optimize the Norwegian energy system. Long-term energy demand projections are uncertain and the purpose of this paper is to illustrate the impact of different projections on the energy system. The results of the analyses show that decreased energy demand results in a higher renewable fraction compared to an increased demand, and the renewable energy production increases with increased energy demand. The most profitable solution to cover increased demand is to increase the use of bio energy and to implement energy efficiency measures. To increase the wind power production, an increased renewable target or higher electricity export prices have to be fulfilled, in combination with more electricity export. - Highlights: • Projections to 2050 of Norwegian energy demand services, carriers and technologies. • Energy demand services calculated based on intensities and activities. • Energy carriers and technologies analysed by TIMES-Norway. • High renewable target results in more wind power production and electricity export. • Increased energy efficiency is important for a high renewable fraction

Comparative analyses of seven technologies to facilitate the integration of fluctuating renewable energy sources

DEFF Research Database (Denmark)

Mathiesen, Brian Vad; Lund, Henrik

2009-01-01

An analysis of seven different technologies is presented. The technologies integrate fluctuating renewable energy sources (RES) such as wind power production into the electricity supply, and the Danish energy system is used as a case. Comprehensive hour-by-hour energy system analyses are conducted...... of a complete system meeting electricity, heat and transport demands, and including RES, power plants, and combined heat and power production (CHP) for district heating and transport technologies. In conclusion, the most fuel-efficient and least-cost technologies are identified through energy system...

Campus and community micro grids integration of building integrated photovoltaic renewable energy sources: Case study of Split 3 area, Croatia - part A

Directory of Open Access Journals (Sweden)

Gašparović Goran

2016-01-01

Full Text Available Micro grids interconnect loads and distributed energy resources as a single controllable entity. New installations of renewable energy sources (RES in urban areas, such as Building Integrated Photovoltaic (BIPV, provide opportunities to increase energy independence and diversify energy sources in the energy system. This paper explores the integration of RES into two case study communities in an urban agglomeration to provide optimal conditions to meet a share of the electrical loads. Energy planning case studies for decentralized generation of renewable energy are conducted in H2RES energy planning software for hourly energy balances. The results indicate that BIPV and PV in the case study communities can cover about 17% of the recorded electrical demand of both areas. On a yearly basis, there will be a 0.025 GWh surplus of PV production with a maximum value of 1.25 MWh in one hour of operation unless grid storage is used. This amounts to a total investment cost of 13.36 million EUR. The results are useful for proposing future directions for the various case study communities targeting sustainable development.

Renewable energies and national development; Energies renouvelables et amenagement du territoire

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-07-01

This document brings together the communications presented at this colloquium on renewable energy sources and the debates that took place during the round-tables. The aim of the colloquium was to take stock of the present day situation of the development of renewable energies in France, to share experiences and to discuss the conditions of implementation and development of renewable energies in particular in accommodations and tertiary buildings (solar thermal and photovoltaic) and in collective services (wood-fuel, cogeneration units, bio-automotive fuels, geothermal energy and biogas). One round table was devoted to the electricity produced from renewable energy sources (hydro- and wind power, cogeneration units, photovoltaic) and to the problem of connection of decentralized power generation units to the national grid (tariffs, legal aspects, administrative procedures) in the new context of deregulation of electricity markets. (J.S.)

Renewable energy project development

Energy Technology Data Exchange (ETDEWEB)

Ohi, J.

1996-12-31

The author presents this paper with three main thrusts. The first is to discuss the implementation of renewable energy options in China, the second is to identify the key project development steps necessary to implement such programs, and finally is to develop recommendations in the form of key issues which must be addressed in developing such a program, and key technical assistance needs which must be addressed to make such a program practical.

The carbon footprint of integrated milk production and renewable energy systems - A case study.

Science.gov (United States)

Vida, Elisabetta; Tedesco, Doriana Eurosia Angela

2017-12-31

Dairy farms have been widely acknowledged as a source of greenhouse gas (GHG) emissions. The need for a more environmentally friendly milk production system will likely be important going forward. Whereas methane (CH 4 ) enteric emissions can only be reduced to a limited extent, CH 4 manure emissions can be reduced by implementing mitigation strategies, such as the use of an anaerobic digestion (AD). Furthermore, implementing a photovoltaic (PV) electricity generation system could mitigate the fossil fuels used to cover the electrical needs of farms. In the present study to detect the main environmental hotspots of milk production, a Life Cycle Assessment was adopted to build the Life Cycle Inventory according to ISO 14040 and 14044 in a conventional dairy farm (1368 animals) provided by AD and PV systems. The Intergovernmental Panel on Climate Change tiered approach was adopted to associate the level of emission with each item in the life cycle inventory. The functional unit refers to 1kg of fat-and-protein-corrected-milk (FPCM). In addition to milk products, other important co-products need to be considered: meat and renewable energy production from AD and PV systems. A physical allocation was applied to attribute GHG emissions among milk and meat products. Renewable energy production from AD and PV systems was considered, discounting carbon credits due to lower CH 4 manure emissions and to the minor exploitation of fossil energy. The CF of this farm scenario was 1.11kg CO 2 eq/kg FPCM. The inclusion of AD allowed for the reduction of GHG emissions from milk production by 0.26kg CO 2 eq/kg FPCM. The PV system contribution was negligible due to the small dimensions of the technology. The results obtained in this study confirm that integrating milk production with other co-products, originated from more efficient manure management, is a successful strategy to mitigate the environmental impact of dairy production. Copyright © 2017 Elsevier B.V. All rights reserved.

Input by insight. Implementation of renewable energy in 2050 taking into account macro-economical aspects and fitting-in options in sectors

International Nuclear Information System (INIS)

Van de Reepe, D.

2001-11-01

In the determination of the potential of renewable energy two factors are important: (1) macro-economical consequences for the Netherlands because of the use of renewable energy sources, and (2) the possibilities of renewable energy to fulfil the energy demands of the several sectors. The main question to be answered in this report is: What is the maximum quantity of renewable energy that can be realized in 2050? The answer will be expressed in the percentage of renewable energy in relation to the total secondary energy demand (excluding non-energetic use of energy carriers). The aim is, that 50% of the energy supply is produced by renewable energy sources. The quantity is eventually determined by the influence of these renewable energy options on the macro-economical position of the Netherlands and the extent to which renewable energy supply meets the energy demands of the several sectors. The macro-economical consequences are determined on the basis of the cost and sensitivities of the several renewable energy options in 2050. Subquestions to answer the main question concern energy demand, renewable energy options, multi-criteria analysis and contemplation. The energy demand in 2050 and the energy profiles of the sectoral energy demand of secondary energy carriers are determined. The renewable energy options, wind energy (onshore and offshore), bioenergy, photovoltaic energy and thermal solar energy, heat pumps and import of green electricity and biomass, are investigated on several factors: Maximal realizable potential; Cost (Cost reduction until 2050, Investment cost, O and M-cost and fuel cost, Total cost, Out of pocket cost); Need for energy storage and cost for fitting in the energy grid; Integration with other renewable energy sources; Availability in sectors; Sensitivity analysis. These data are used in a multi-criteria analysis with four quantitative criteria. The results of this multi-criteria analysis are combined with qualitative criteria with regard

Sustainable Energy Transitions in China: Renewable Options and Impacts on the Electricity System

Directory of Open Access Journals (Sweden)

Xiaoyang Sun

2016-11-01

Full Text Available Chinese energy consumption has been dominated by coal for decades, but this needs to change to protect the environment and mitigate anthropogenic climate change. Renewable energy development is needed to fulfil the Intended Nationally Determined Contribution (INDC for the post-2020 period, as stated on the 2015 United Nations Climate Change Conference in Paris. This paper reviews the potential of renewable energy in China and how it could be utilised to meet the INDC goals. A business-as-usual case and eight alternative scenarios with 40% renewable electricity are explored using the EnergyPLAN model to visualise out to the year 2030. Five criteria (total cost, total capacity, excess electricity, CO2 emissions, and direct job creation are used to assess the sustainability of the scenarios. The results indicate that renewables can meet the goal of a 20% share of non-fossil energy in primary energy and 40%–50% share of non-fossil energy in electricity power. The low nuclear-hydro power scenario is the most optimal scenario based on the used evaluation criteria. The Chinese government should implement new policies aimed at promoting integrated development of wind power and solar PV.

Assessing the Potential for Renewable Energy on Public Lands

Energy Technology Data Exchange (ETDEWEB)

2003-02-01

This report represents an initial activity of the Bureau of Land Managements (BLM) proposed National Energy Policy Implementation Plan: identify and evaluate renewable energy resources on federal lands and any limitations on accessing them. Ultimately, BLM will prioritize land-use planning activities to increase industrys development of renewable energy resources. These resources include solar, biomass, geothermal, water, and wind energy. To accomplish this, BLM and the Department of Energys National Renewable Energy Laboratory (NREL) established a partnership to conduct an assessment of renewable energy resources on BLM lands in the western United States. The objective of this collaboration was to identify BLM planning units in the western states with the highest potential for private-sector development of renewable resources. The assessment resulted in the following findings: (1) 63 BLM planning units in nine western states have high potential for one or more renewable energy technologies; and (2) 20 BLM planning units in seven western states have high potential for power production from three or more renewable energy sources. This assessment report provides BLM with information needed to prioritize land-use planning activities on the basis of potential for the development of energy from renewable resources.

2050 pathway to an active renewable energy scenario for Jiangsu province

DEFF Research Database (Denmark)

Hong, Lixuan; Lund, Henrik; Mathiesen, Brian Vad

2013-01-01

emphasis on improving its energy efficiency and utilizing its renewable resources in the future. This paper presents the integrated energy pathway for Jiangsu during its social and economic transformation until 2050. EnergyPLAN is the chosen energy system analysis tool, since it accounts for all sectors...... of the energy system that needs to be considered when integrating large-scale renewable energy. A Current Policy Scenario (CPS) based on current energy policies and an Ambitious Policy Scenario (APS) based on large-scale integration of renewable energy and ambitious measures of energy efficiency improvement......In 2009, Jiangsu province of China supplied 99.6 percent of its total energy consumption with fossil fuels, of which 82 percent was imported from other provinces and countries. With rising energy demand, frequent energy shortages, and increasing pollution, it is essential for Jiangsu to put more...

Evidence of long memory behavior in U.S. renewable energy consumption

International Nuclear Information System (INIS)

Pestana Barros, Carlos; Gil-Alana, Luis A.; Payne, James E.

2012-01-01

This study examines the degrees of time persistence in U.S. total renewable energy consumption using innovative fractional integration and autoregressive models with monthly data from 1981:1 to 2010:10. The results indicate that renewable energy consumption is better explained in terms of a long memory model that incorporates persistence components and seasonality. The degree of integration is above 0.5 but significantly below 1.0, suggesting nonstationarity with mean reverting behavior. The presence of long memory behavior (persistence) in renewable energy consumption suggests that random shocks may very well move renewable energy consumption from pre-determined target levels for a period of time.

Multicriteria renewable energy planning using an integrated fuzzy VIKOR and AHP methodology: The case of Istanbul

International Nuclear Information System (INIS)

Kaya, Tolga; Kahraman, Cengiz

2010-01-01

The purpose of this study is twofold: first, it is aimed at determining the best renewable energy alternative for Istanbul by using an integrated VIKOR-AHP methodology. Second, a selection among alternative energy production sites in this city is made using the same approach. In the proposed VIKOR-AHP methodology, the weights of the selection criteria are determined by pairwise comparison matrices of AHP. In energy decision making problems, the judgments of decision makers are usually vague. As it is relatively difficult for decision makers to provide exact values for the criteria, the evaluation data for the alternative energy policies should be expressed in linguistic terms. In order to model this kind of uncertainty in human preferences, fuzzy logic is applied very successfully. Thus, both classical VIKOR and classical AHP procedures are performed under fuzzy environment. The originality of the paper comes from the application of the proposed integrated VIKOR-AHP methodology to the selection of the best energy policy and production site. It is found that wind energy is the most appropriate renewable energy option and Catalca district is the best area among the alternatives for establishing wind turbines in Istanbul.

Renewable energy technology applications in the Asian region

International Nuclear Information System (INIS)

Charters, W.W.S.

1996-01-01

The interest shown by Asia in renewable energy technologies is currently extremely high as the region is expected to account for up to 50 percent of the total world power generation equipment orders over the next ten years. Mature developed technologies for power production from renewable energy resources are now available in the form of micro and mini hydro plants, biomass pyrolysis and gasification units, wind aerogenerators and photovoltaic arrays. If Australia is to move towards a sustainable energy society, renewable energy resources must be utilized on a widespread scale as soon as possible. There are large niche markets for renewable energy resource based equipment in Australia, as well as immense market opportunities in the neighbouring fast growing economies in Asia. Key issues to be addressed in terms of implementing major renewable energy programs in the region on a large scale include identification and encouragement of reliable markets, and mass production of high quality reliable products. (author). 10 refs

Renewable energy sources and climate change mitigation. Special report of the Intergovernmental Panel on Climate Change (IPCC)

Energy Technology Data Exchange (ETDEWEB)

Edenhofer, O. (Potsdam Institute for Climate Impact Research (PIK), Potsdam (Germany)); Pichs Madruga, R. (Centro de Investigaciones de la Economia Mundial (CIEM), Hanoi (Viet Nam)); Sokona, Y. (African Climate Policy Centre, United Nations Economic Commission for Africa, Addis Ababa (Ethiopia)) (and others)

2012-07-01

Climate change is one of the great challenges of the 21st century. Its most severe impacts may still be avoided if efforts are made to transform current energy systems. Renewable energy sources have a large potential to displace emissions of greenhouse gases from the combustion of fossil fuels and thereby to mitigate climate change. If implemented properly, renewable energy sources can contribute to social and economic development, to energy access, to a secure and sustainable energy supply, and to a reduction of negative impacts of energy provision on the environment and human health. This Special Report on Renewable Energy Sources and Climate Change Mitigation (SRREN) impartially assesses the scientific literature on the potential role of renewable energy in the mitigation of climate change for policymakers, the private sector, academic researchers and civil society. It covers six renewable energy sources - bioenergy, direct solar energy, geothermal energy, hydropower, ocean energy and wind energy - as well as their integration into present and future energy systems. It considers the environmental and social consequences associated with the deployment of these technologies, and presents strategies to overcome technical as well as non-technical obstacles to their application and diffusion. The authors also compare the levelized cost of energy from renewable energy sources to recent non-renewable energy costs. (Author)

Successful renewable energy development in a competitive electricity market: A Texas case study

International Nuclear Information System (INIS)

Zarnikau, Jay

2011-01-01

The development of renewable energy in markets with competition at wholesale and retail levels poses challenges not present in areas served by vertically-integrated utilities. The intermittent nature of some renewable energy resources impact reliability, operations, and market prices, in turn affecting all market participants. Meeting renewable energy goals may require coordination among many market players. These challenges may be successfully overcome by imposing goals, establishing trading mechanisms, and implementing operational changes in competitive markets. This strategy has contributed to Texas' leadership among all US states in non-hydro renewable energy production. While Texas has been largely successful in accommodating over 9000 MW of wind power capacity, this extensive reliance upon wind power has also created numerous problems. Higher levels of operating reserves must now be procured. Market prices often go negative in the proximity of wind farms. Inaccurate wind forecasts have led to reliability problems. Five billion dollars in transmission investment will be necessary to facilitate further wind farm projects. Despite these costs, wind power is generally viewed as a net benefit. - Research Highlights: → Texas rapidly emerged as a leader in renewable energy development. → This state's experiences demonstrate that the right combination of policies to lead to rapid renewable energy development in a region with a very competitive electricity market. → Wind power development has lead to various operational challenges.

Factors Relevant to Utility Integration of Intermittent Renewable Technologies

Energy Technology Data Exchange (ETDEWEB)

Wan, Y.; Parsons, B.

1993-08-24

This study assesses factors that utilities must address when they integrate intermittent renewable technologies into their power-supply systems; it also reviews the literature in this area and has a bibliography containing more than 350 listings. Three topics are covered: (1) interface (hardware and design-related interconnection), (2) operability/stability, and (3) planning. This study finds that several commonly held perceptions regarding integration of intermittent renewable energy technologies are not valid. Among fmdings of the study are the following: (1) hardware and system design advances have eliminated most concerns about interface, (2) cost penalties have not occurred at low to moderate penetration levels (and high levels am feasible); and (3) intermittent renewable energy technologies can have capacity values. Obstacles still interfering with intermittent renewable technologies are also indentified.

Factors relevant to utility integration of intermittent renewable technologies

Energy Technology Data Exchange (ETDEWEB)

Wan, Yih-huei; Parsons, B.K.

1993-08-01

This study assesses factors that utilities must address when they integrate intermittent renewable technologies into their power-supply systems; it also reviews the literature in this area and has a bibliography containing more than 350 listings. Three topics are covered: (1) interface (hardware and design-related interconnection), (2) operability/stability, and (3) planning. This study finds that several commonly held perceptions regarding integration of intermittent renewable energy technologies are not valid. Among findings of the study are the following: (1) hardware and system design advances have eliminated most concerns about interface; (2) cost penalties have not occurred at low to moderate penetration levels (and high levels are feasible); and (3) intermittent renewable energy technologies can have capacity values. Obstacles still interfering with intermittent renewable technologies are also identified.

Efficient strategies for the integration of renewable energy into future energy infrastructures in Europe – An analysis based on transnational modeling and case studies for nine European regions

International Nuclear Information System (INIS)

Boie, Inga; Fernandes, Camila; Frías, Pablo; Klobasa, Marian

2014-01-01

As a result of the current international climate change strategy, the European Commission has agreed on ambitious targets to reduce CO 2 emissions by more than 80% until 2050 as compared to 1990 levels and to increase the share of renewable energy and improve energy efficiency by 20% until 2020. Under this framework, renewable energy generation has increased considerably in the EU and it is expected to keep growing in the future years. This paper presents long-term strategies for transmission infrastructure development to integrate increasing amounts of renewable generation in the time horizon of 2030–2050. These are part of the outcomes of the SUSPLAN project, which focuses on four possible future renewable deployment scenarios in different European regions taking into account the corresponding infrastructure needs, especially electricity and gas grids, both on regional and transnational level. The main objective of the project is the development of guidelines for the integration of renewable energy into future energy infrastructures while taking account of national and regional characteristics. Therefore, the analysis is based on a two-track approach: A transnational modeling exercise (“top-down”) and in-depth case studies for nine representative European regions (“bottom-up”). - Highlights: • We present the main outcomes of the SUSPLAN EU project. • It assesses long-term energy infrastructure needs to integrate RES in Europe. • Regional and transnational analyses are performed for 4 RES scenarios until 2050. • Major barriers to the integration of RES into energy infrastructure are identified. • Efficient strategies to mitigate these barriers are proposed

Promotion strategies for renewable energy in Taiwan

International Nuclear Information System (INIS)

Chen, Falin; Lu, Shyi-Min; Chi-Chuan, Wang; Chang, Yi-Lin

2008-01-01

To promote the development and application of renewable energy, under the planning and execution of Bureau of Energy of Ministry of Economical Affairs (BOEMOEA), Taiwan has implemented many measures for subsidizing the installation of RE apparatus since 2000. Besides subsidizing the installing expenses, Taiwanese government also provides incentive measures of finance/tax, such as investment deduction and accelerating depreciation. The successive growth of the amount of installing cases has apparently constructed the base of promotion and application of renewable energy; on the other hand, many barriers to be overcome were continuously discovered during the executing processes. To effectively remove these promoting barriers, the Energy Commission (the pre-BOE) issued 'Renewable Energy Development Plan' through the endorsement of Executive Yuan in January 2002. The purpose of this plan is to establish an inter-ministerial coordinating mechanism of a higher administrative level, which may focus all resources to be functioned as a working team. In the meantime, to further establish a systematically promoting mechanism, the Bureau of Energy then pushes the legislation of 'Renewable Energy Development Bill'. According to the drafted plan of this law, the power capacity of renewable energies will be 12% share of the national power installation capacity by 2020. Furthermore, in the Nuclear-free Homeland National Conference held in June 2003, government planned that the power capacity of renewable energy must reach 10% of the total power capacity in the nation by 2010. However, the share of the power capacity of renewable energy to the national power installation capacity is only 6.17%, currently, so there is still a lot of growing space for the development of renewable energy in Taiwan. (author)

Grid Integration and the Carrying Capacity of the U.S. Grid to Incorporate Variable Renewable Energy

Energy Technology Data Exchange (ETDEWEB)

Cochran, Jaquelin [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Denholm, Paul [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Speer, Bethany [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Miller, Mackay [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2015-04-23

In the United States and elsewhere, renewable energy (RE) generation supplies an increasingly large percentage of annual demand, including nine U.S. states where wind comprised over 10% of in-state generation in 2013. This white paper summarizes the challenges to integrating increasing amounts of variable RE, identifies emerging practices in power system planning and operation that can facilitate grid integration, and proposes a unifying concept—economic carrying capacity—that can provide a framework for evaluating actions to accommodate higher penetrations of RE. There is growing recognition that while technical challenges to variable RE integration are real, they can generally be addressed via a variety of solutions that vary in implementation cost. As a result, limits to RE penetration are primarily economic, driven by factors that include transmission and the flexibility of the power grid to balance supply and demand. This limit can be expressed as economic carrying capacity, or the point at which variable RE is no longer economically competitive or desirable to the system or society.

Green power: A renewable energy resources marketing plan

International Nuclear Information System (INIS)

Barr, R.C.

1997-01-01

Green power is electricity generated from renewable energy sources such as power generated from the sun, the wind, the heat of the earth, and biomass. Green pricing is the marketing strategy to sell green power to customers who voluntarily pay a premium for it. Green pricing is evolving from the deregulation of the electric industry, the need for clean air, reflected in part as concern over global warming, and technology advances. The goal of the renewable energy marketing plan is to generate enough revenues for a utility to fund power purchase agreements (PPAs) with renewable energy developers or construct its own renewable facilities. Long-term, fixed price PPAs enable developers to obtain financing to construct new facilities, sometimes taking technological risks which a utility might not take otherwise. The marketing plan is built around different rate premiums for different categories of ratepayers, volunteer customer participation, customer participation recognition, and budget allocations between project costs and power marketing costs. Green prices are higher than those for conventional sources, particularly prices from natural gas fired plants. Natural gas is abundant relative to oil in price per British thermal unit (Btu). Green pricing can help bridge the gap between the current oversupply of gas and the time, not far off, when all petroleum prices will exceed those for renewable energy. The rapid implementation of green pricing is important. New marketing programs will bolster the growing demand for renewable energy evidenced in many national surveys thus decreasing the consumption of power now generated by burning hydrocarbons. This paper sets forth a framework to implement a green power marketing plan for renewable energy developers and utilities working together

Final Scientific/Technical Report for DOE/EERE Comprehensive Community Renewable Energy Implementation Plan in Forest County and Milwaukee County

Energy Technology Data Exchange (ETDEWEB)

Karman, Nathan [Forest County Potawatomi Community, Crandon, WI (United States)

2014-06-27

Forest County Potawatomi Community (the “Community”) sought and obtained Community Renewable Energy Deployment funding from the Department of Energy to evaluate and implement a diverse number of renewable energy technologies throughout its lands held in trust or owned in fee simple in Forest County and Milwaukee County (the “Project”). The technologies and sites evolved during the Project, ultimately leading to the investigation of biomass and solar projects on the Community’s reservation in Forest County, as well as the investigation and eventual deployment of a solar project and an anaerobic digestion and biogas project on Community lands in Milwaukee.

The Integration of Renewable Energy Sources into Electric Power Distribution Systems, Vol. II Utility Case Assessments

Energy Technology Data Exchange (ETDEWEB)

Zaininger, H.W.

1994-01-01

Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: the local solar insolation and/or wind characteristics, renewable energy source penetration level, whether battery or other energy storage systems are applied, and local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kW-scale applications may be connected to three+phase secondaries, and larger hundred-kW and y-scale applications, such as MW-scale windfarms, or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. In any case, the installation of small, distributed renewable energy sources is expected to have a significant impact on local utility distribution primary and secondary system economics. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications. The

Energy transition and legal transition: renewable energies development in France

International Nuclear Information System (INIS)

Darson, Alice

2015-01-01

The way to an energy transition will be reached with an integration of renewable energies in our energy mix. This development includes a legal transition because the current legal context that applies to green energies is not efficient and does not contribute to this emergency. Changing the legal frame becomes a necessity and particularly the way these energies are governed, planned and supported. It's also important that administrative procedures that regulate the implantation of energies production system are set. At last, this legal transition will have to conciliate imperatives linked to the development of renewable energies with those governing the protection of surroundings, all aiming to a sustainable development. (author) [fr

Renewable energy resources

DEFF Research Database (Denmark)

Ellabban, Omar S.; Abu-Rub, Haitham A.; Blaabjerg, Frede

2014-01-01

Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because...... they can, in principle, exponentially exceed the world's energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how...... renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy...

Renewable Energy Operation and Conversion Schemes

DEFF Research Database (Denmark)

Spagnuolo, Giovanni; Petrone, Giovanni; Araujo, Samuel Vasconcelos

2010-01-01

A short summary of some speeches given during Seminar on Renewable Energy system (SERENE) is presented. The contributions have been mainly focused on power electronics for photovoltaic (PV) and sea wave energies, pointing out some aspects related to efficiency, reliability, and grid integration. ...

Energy Efficiency, Water Efficiency, and Renewable Energy Site Assessment: Seneca Rocks Discovery Center, Seneca Rocks, West Virginia

Energy Technology Data Exchange (ETDEWEB)

Kiatreungwattana, Kosol [National Renewable Energy Lab. (NREL), Golden, CO (United States); Salasovich, James [National Renewable Energy Lab. (NREL), Golden, CO (United States); Kandt, Alicen [National Renewable Energy Lab. (NREL), Golden, CO (United States)

2016-03-22

As part of ongoing efforts by the U.S. Forest Service to reduce energy use and incorporate renewable energy technologies into its facilities, the Department of Energy's National Renewable Energy Laboratory performed an energy efficiency and renewable energy site assessment of the Seneca Rocks Discovery Center in Seneca Rocks, West Virginia. This report documents the findings of this assessment, and provides site-specific information for the implementation of energy and water conservation measures, and renewable energy measures.

The myth of renewable energies - Love means giving without limits

International Nuclear Information System (INIS)

Prud'homme, Remy

2017-01-01

While considering statements made by French ministers on solar and renewable energies as scientifically mistaken or expressing some kind of religious faith, the author aims at proposing undeniable data and figures reflecting the reality of renewable energies. His study is based on official results for a dozen of countries which have been implementing massive investment programmes for a decade (for example, Germany, Denmark, Italy), and the author shows that the result is not encouraging at all, neither for the environment, nor for the economy, and nor for the taxpayer: significant price increase for the consumers, a lower than expected efficiency in terms of reduction of greenhouse emissions. The example of Denmark is notably outlined: production at moments energy is not needed (Denmark is even said to pay to get rid of this energy which cannot be stored), integration to neighbouring networks to supply energy when needed. The author states that without a storage solution, the French ambition on solar and wind energy may well have an as bad end as our neighbours

RENEWABLE ENERGY STRATEGIES: WHERE EUROPEAN UNION HEADED?

Directory of Open Access Journals (Sweden)

RADULESCU IRINA GABRIELA

2015-06-01

Full Text Available The states from European Union must take advantage from renewable energy sources in order to revive the economy. Climate change creates new jobs and could reduce energy imports which would stimulate the economy of those states. The European Union should support research in the field, apply more efficient policies in energy, and create economies of scale to get an integrated European energy market in which the main actors can reduce the cost of production of renewable energy. In addition, it is possible to use the comparative advantages of the Member States and not only, like Greece, through solar energy, Southern Mediterranean, through distribution networks interconnections with EU, Russia and Ukraine, through biomass and the North Sea, through wind energy. This paper refers to the evolution and trends of the renewable energy sources and presents some scenarios of it.

The prospects of renewable energy technologies for rural electrification: A review from Nepal

International Nuclear Information System (INIS)

Gurung, Anup; Kumar Ghimeray, Amal; Hassan, Sedky H.A.

2012-01-01

Utilization of renewable energy technologies remains one of the major energy policies throughout the world. These technologies are proven to be successful for electrifying rural communities, especially in developing countries. Realizing the benefits of renewable energy sources, the Government of Nepal has initiated the production and distribution of renewable energy technologies in recent years, mainly to electrify rural communities. Although these technologies are suitable for providing electricity in isolated and remote rural areas, their implementation programs have not been successful as expected. This review provides broad-spectrum view about the energy situation in Nepal and highlights the current policies and subsidies for the optimal utilization of renewable energy resources in isolated and poor rural communities. In addition, major promotional barriers for their implementation in Nepal have been discussed. - Highlights: ► Nepal has enormous potential of renewable energy sources. ► Till date only small fraction of renewable energy sources has been exploited. ► However, renewable energy technologies seem to be promising options for rural electrification.

The implementation of the EU renewable directive in Spain. Strategies and challenges

International Nuclear Information System (INIS)

Labriet, Maryse; Cabal, Helena; Lechon, Yolanda; Giannakidis, George; Kanudia, Amit

2010-01-01

Based on the European project RES2020, the analysis evaluates the energy strategies to be implemented in Spain in order to satisfy the EU Renewable Directive. The modelling framework relies on the technico-economic model TIMES-Spain, part of the Pan-European TIMES model used in the project. TIMES is a bottom-up technology rich optimisation model representing the whole energy systems of the countries. Among the results, it appears that the gap regarding the renewable deployment in Spain between the Business-as-Usual case (including the existing policies) and the EU Directive should be compensated mainly by the penetration of bioenergy in transport and industry, and by the implementation of conservation measures, which contribute to reduce the total energy demand and thus makes useless additional investments in renewable power plants compared to the Business-as-Usual case. Only higher climate mitigation ambitions result in an absolute increase in the renewable-based electricity generation compared to the Business-as-Usual case. Moreover, when allowed, Spain is offering renewable energy credits under the statistical transfer mechanism to other European countries. The cost increase of the modelled renewable and climate policies compared to the Business-as-Usual remains relatively minor.

Renewable energies and energy choices. Summary of the colloquium; Energies renouvelables et choix energetiques. Compte rendu du colloque

Energy Technology Data Exchange (ETDEWEB)

NONE

2003-05-01

This document is an executive summary of the colloquium organized by the French syndicate of renewable energies (SER) which took place at the Maison de l'UNESCO in Paris during the national debate on energies organized by the French government in spring 2003. The colloquium was organized around 6 round tables dealing with: the world perspectives and the environmental context of the contribution of renewable energies to the sustainable development (respect of Kyoto protocol commitments, contribution to the security of energy supplies, lack of large scale program of development of decentralized power generation in developing countries, lack of market tools linked with CO{sub 2} emissions, improvement of competitiveness); development of renewable energies in Europe (promotion and sustain in all European countries, obligation of supply and purchase, pricing regulation, European harmonization of practices); renewable electricity and its place in the new orientation law about energies (tariff/pluri-annual investment planing, administrative authorizations, connections to the grid, calls for offer, costs of the photovoltaic solar energy); contribution of renewable energies in the transportation sector (bio-fuels, low taxes, ethanol fuel cells, vegetal chemistry); renewable heat and integration of renewable energy sources in buildings (intelligent architecture, promotion, quality labels and standards, lack of CO{sub 2} penalties linked with fossil fuels, tax reduction for solar and wood fuel appliances, acknowledgment of geothermal heat pumps as renewable energy source); and the presentation of the first proposals for the future orientation law (balance between nuclear and renewable energy sources, integration in the local environment, competitiveness, use of market mechanisms, R and D etc.). (J.S.)

Renewable energies and energy choices. Summary of the colloquium; Energies renouvelables et choix energetiques. Compte rendu du colloque

Energy Technology Data Exchange (ETDEWEB)

NONE

2003-05-01

This document is an executive summary of the colloquium organized by the French syndicate of renewable energies (SER) which took place at the Maison de l'UNESCO in Paris during the national debate on energies organized by the French government in spring 2003. The colloquium was organized around 6 round tables dealing with: the world perspectives and the environmental context of the contribution of renewable energies to the sustainable development (respect of Kyoto protocol commitments, contribution to the security of energy supplies, lack of large scale program of development of decentralized power generation in developing countries, lack of market tools linked with CO{sub 2} emissions, improvement of competitiveness); development of renewable energies in Europe (promotion and sustain in all European countries, obligation of supply and purchase, pricing regulation, European harmonization of practices); renewable electricity and its place in the new orientation law about energies (tariff/pluri-annual investment planing, administrative authorizations, connections to the grid, calls for offer, costs of the photovoltaic solar energy); contribution of renewable energies in the transportation sector (bio-fuels, low taxes, ethanol fuel cells, vegetal chemistry); renewable heat and integration of renewable energy sources in buildings (intelligent architecture, promotion, quality labels and standards, lack of CO{sub 2} penalties linked with fossil fuels, tax reduction for solar and wood fuel appliances, acknowledgment of geothermal heat pumps as renewable energy source); and the presentation of the first proposals for the future orientation law (balance between nuclear and renewable energy sources, integration in the local environment, competitiveness, use of market mechanisms, R and D etc.). (J.S.)

The European market of renewable energies

International Nuclear Information System (INIS)

Anon.

2011-09-01

This market study on renewable energies presents: 1 - the different renewable energy industries for power generation: the field of renewable energies (hydropower, wind power, solar energy, geothermal energy and biomass power plants) and their common points, their characteristics, advantages and constraints; 2 - the political and regulatory context with its ambitious goals: main steps of worldwide negotiations, Europe and the management of CO 2 emissions, stiffening of the environmental regulation, the energy/climate package and the efforts to be borne by the different member states; 3 - Economy of the sector and the necessary public support: investment and production costs by industry, wholesale prices and competitiveness of the different power generation means, government's incentives for projects profitability; 4 - dynamics of the European market of renewable energies: energy-mix and evolution of the renewable energies contribution in the world and in the European Union, key-figures by country and by industry (installed capacity, production, turnover, employment); 5 - medium-term development perspectives: 2020 prospect scenarios, evolution of the energy mix, perspectives of development for each industry; 6 - the strengths in presence in the domain of facilities: main manufacturers, market shares, innovations, vertical integration, external growth; 7 - the strengths in presence in the domain of power facilities operation: main European operators, position and ranking, installed capacities, projects portfolio; 8 - medium-term perspectives of reconfiguration: best-positioned operators in a developing market, future of European manufacturers with respect to Asian ones, inevitable concentration in the operation sector. (J.S.)

Lessons Learned from Net Zero Energy Assessments and Renewable Energy Projects at Military Installations

Energy Technology Data Exchange (ETDEWEB)

Callahan, M.; Anderson, K.; Booth, S.; Katz, J.; Tetreault, T.

2011-09-01

Report highlights the increase in resources, project speed, and scale that is required to achieve the U.S. Department of Defense (DoD) energy efficiency and renewable energy goals and summarizes the net zero energy installation assessment (NZEI) process and the lessons learned from NZEI assessments and large-scale renewable energy projects implementations at DoD installations.

Energy consumption renewable energy development and environmental impact in Algeria - Trend for 2030

Science.gov (United States)

Sahnoune, F.; Imessad, K.; Bouakaz, D. M.

2017-02-01

The study provides a detailed analysis of the energy production and consumption in Algeria and the associated CO2 emissions. Algeria is an important energy producer (oil and natural gas). The production is currently around 155 MToe. The total primary energy consumption amounted to about 58 MToe equivalent to 1.46 Toe/capita. The energy demand is still increasing, an average annual growth rate of more than 6% per year during the last decade. The growth rate for electricity production was almost twice that of the total energy consumption. In 2015, the installed capacity of the electricity generation plants reached 17.6 GW. Electricity consumption was 64.6 TWh and is expected to reach at least 75 TWh in 2020 and 130 TWh in 2030. The already high electricity demand will double by 2030. In the structure of final energy consumption, the transport sector ranks first (36%), natural gas consumption ranks second (28.5%), followed by electricity production (27.7%). By activity, the energy sector is the main source of CO2 emissions, about ¾ of the total and this sector has the most important potential for mitigation measures. CO2 emissions from this energy sector amounted to 112.2 MT CO2 as follows: 33% transport, 31% electricity production and 26% from natural gas combustion for residential use. The integration of renewable sources in the energy mix represents for Algeria a major challenge. In 2015, Algeria adopted an ambitious program for development of renewable energy. The target is to achieve 22 GW capacity of electricity from renewable by 2030 to reach a rate of 27 % of national electricity generation through renewable sources. By implementing this program, CO2 emissions of power generation will be reduced by more than 18% in 2030.

Nanostructured Materials for Renewable Energy

Energy Technology Data Exchange (ETDEWEB)

None

2009-11-01

This factsheet describes a research project whose overall objective is to advance the fundamental understanding of novel photoelectronic organic device structures integrated with inorganic nanostructures, while also expanding the general field of nanomaterials for renewable energy devices and systems.

Output, renewable energy consumption and trade in Africa

International Nuclear Information System (INIS)

Ben Aïssa, Mohamed Safouane; Ben Jebli, Mehdi; Ben Youssef, Slim

2014-01-01

We use panel cointegration techniques to examine the relationship between renewable energy consumption, trade and output in a sample of 11 African countries covering the period 1980–2008. The results from panel error correction model reveal that there is evidence of a bidirectional causality between output and exports and between output and imports in both the short and long-run. However, in the short-run, there is no evidence of causality between output and renewable energy consumption and between trade (exports or imports) and renewable energy consumption. Also, in the long-run, there is no causality running from output or trade to renewable energy. In the long-run, our estimations show that renewable energy consumption and trade have a statistically significant and positive impact on output. Our energy policy recommendations are that national authorities should design appropriate fiscal incentives to encourage the use of renewable energies, create more regional economic integration for renewable energy technologies, and encourage trade openness because of its positive impact on technology transfer and on output. - Highlights: • We examine the relationship between renewable energy consumption, trade and output in African countries. • There is a bidirectional causality between output and trade in both the short and long-run. • In the short-run, there is no causality between renewable energy consumption and trade or output. • In the long-run, renewable energy consumption and trade have a statistically significant positive impact on output. • African authorities should encourage trade openness because of its positive impact on technology transfer and on output

Building Energy Modeling and Control Methods for Optimization and Renewables Integration

Science.gov (United States)

Burger, Eric M.

dynamics within a building by learning from sensor data. Control techniques encompass the application of optimal control theory, model predictive control, and convex distributed optimization to TCLs. First, we present the alternative control trajectory (ACT) representation, a novel method for the approximate optimization of non-convex discrete systems. This approach enables the optimal control of a population of non-convex agents using distributed convex optimization techniques. Second, we present a distributed convex optimization algorithm for the control of a TCL population. Experimental results demonstrate the application of this algorithm to the problem of renewable energy generation following. This dissertation contributes to the development of intelligent energy management systems for buildings by presenting a suite of novel and adaptable modeling and control techniques. Applications focus on optimizing the performance of building operations and on facilitating the integration of renewable energy resources.

French know-how in the field of renewable energies

International Nuclear Information System (INIS)

2012-02-01

Renewable energies are currently undergoing an unprecedented boom worldwide. They allow for the recovery of local energy sources as a sustainable response to numerous electricity, heating and transportation needs. In France, public and private stakeholders are striving to ensure that renewable energy accounts for 23% of final energy consumption by 2020. For over 20 years, the French Environment and Energy Management Agency (Agence de l'Environnement et de la Maitrise de l'energie - ADEME) has been promoting the development of these energy sources in addition to implementing energy efficiency improvement policies. In the framework of the Grenelle environmental round table, the agency assumes since 2009 responsibility for the implementation of a vast 'Renewable Heat Fund' (Fonds chaleur renouvelable), which in nearly three years, has led to the establishment of over 1,600 heat production plants using biomass, solar, geothermal energy, etc. To promote the marketing of advanced technologies, the ADEME is also in charge of a major support programme for demonstration projects: 'Investments for the future' (Investissements d'Avenir), which puts the emphasis on renewable and carbon-free energy. At the heart of these schemes, French companies are providing efficient products and services for national and international markets. Through this brochure, the Ademe presents the French expertise in the field of renewable energy, which combines innovation and industrial development to address the energy and climate challenges

Economics of Renewable Energy Integration and Energy Storage via Low Load Diesel Application

Directory of Open Access Journals (Sweden)

James Hamilton

2018-04-01

Full Text Available One-quarter of the world’s population lives without access to electricity. Unfortunately, the generation technology most commonly employed to advance rural electrification, diesel generation, carries considerable commercial and ecological risks. One approach used to address both the cost and pollution of diesel generation is renewable energy (RE integration. However, to successfully integrate RE, both the stochastic nature of the RE resource and the operating characteristics of diesel generation require careful consideration. Typically, diesel generation is configured to run heavily loaded, achieving peak efficiencies within 70–80% of rated capacity. Diesel generation is also commonly sized to peak demand. These characteristics serve to constrain the possible RE penetration. While energy storage can relieve the constraint, this adds cost and complexity to the system. This paper identifies an alternative approach, redefining the low load capability of diesel generation. Low load diesel (LLD allows a diesel engine to operate across its full capacity in support of improved RE utilization. LLD uses existing diesel assets, resulting in a reduced-cost, low-complexity substitute. This paper presents an economic analysis of LLD, with results compared to conventional energy storage applications. The results identify a novel pathway for consumers to transition from low to medium levels of RE penetration, without additional cost or system complexity.

Renewables Global Futures Report: Great debates towards 100% renewable energy

International Nuclear Information System (INIS)

Teske, Sven; Fattal, Alex; Lins, Christine; Hullin, Martin; Williamson, Laura E.

2017-01-01

The first version of REN21's Renewables Global Futures Report (GFR) published in January 2013 identified a panorama of likely future debates related to the renewable energy transition. As a reflection of the wide range of contemporary thinking by the many experts interviewed for the report, it did not present just one vision of the future but rather a 'mosaic' of insights. Given the positive feedback in response to the first edition, a new edition has been prepared, continuing where the last one left off. The objective of this report is to gather opinions about the feasibility of a 100% renewable energy future, and the macro-economic impacts it would entail. In so doing, the report reflects on the debates of 2013, and tracks their evolution to the present time. Some remain, some have changed, some have been overtaken by progress, and new ones have arisen. They are summarised here as the Great Debates in renewable energy. The questionnaire for the survey was developed in close cooperation between the REN21 Secretariat, the Institute for Sustainable Future (ISF) of the University of Technology Sydney/Australia (UTS) and the Institute for Advanced Sustainability Studies (IASS) in Potsdam/Germany. It covered the following topics: 1. How much renewables?; 2. Power sector; 3. Heating and cooling; 4. Transport; 5. Storage; 6. Demand-side management and energy efficiency; 7. Integration of sectors; 8. Macro-economic considerations; 9. Technology and costs; 10. Policy; 11. Cities; 12. Distributed renewable energy/energy access; 13. Barriers/challenges/enablers. 114 experts were interviewed in total; the average interview time was approximately one hour. The interviews were conducted between May and October 2016. The questionnaire was also mirrored in an online version and used both by interviewers and interviewees to record the interview process. Interviewees were selected from the following regions: Africa, Australia and Oceania, China, Europe, India, Japan, Latin America

Energy Systems Integration News | Energy Systems Integration Facility |

Science.gov (United States)

, utilities can operate more efficiently and profitably. That can increase the use of renewable energy sources challenge to utility companies, grid operators, and other stakeholders involved in wind energy integration recording is available from the July 16 webinar "Smart Grid Research at NREL's Energy Systems

Global analysis of the techno-economic potential of renewable energy hybrid systems on small islands

International Nuclear Information System (INIS)

Blechinger, P.; Cader, C.; Bertheau, P.; Huyskens, H.; Seguin, R.; Breyer, C.

2016-01-01

Globally, small islands below 100,000 inhabitants represent a large number of diesel based mini-grids. With volatile fossil fuel costs which are most likely to increase in the long-run and competitive renewable energy technologies the introduction of such sustainable power generation system seems a viable and environmental friendly option. Nevertheless the implementation of renewable energies on small islands is quite low based on high transaction costs and missing knowledge according to the market potential. Our work provides a global overview on the small island landscape showing the respective population, economic activity, energy demand, and fuel costs for almost 1800 islands with approximately 20 million inhabitants currently supplied by 15 GW of diesel plants. Based on these parameters a detailed techno-economic assessment of the potential integration of solar PV, wind power, and battery storage into the power supply system was performed for each island. The focus on solar and wind was set due to the lack of data on hydro and geothermal potential for a global island study. It revealed that almost 7.5 GW of photovoltaic and 14 GW of wind power could be economically installed and operated on these islands reducing the GHG-emissions and fuel consumption by approximately 50%. In total numbers more than 20 million tons of GHG emissions can be reduced by avoiding the burning of 7.8 billion liters of diesel per year. Cost savings of around 9 USDct/kWh occur on average by implementing these capacities combined with 5.8 GWh of battery storage. This detailed techno-economic evaluation of renewable energies enables policy makers and investors to facilitate the implementation of clean energy supply systems on small islands. To accelerate the implementation of this enormous potential we give specific policy recommendations such as the introduction of proper regulations. - Highlights: • GIS analysis has identified approximately 1800 small island energy systems with

Implementation of renewable energy technologies - Opportunities and barriers. Egypt country study

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-07-01

The project used case studies of renewable energy implementation projects to analyse the reasons for success or failure of specific projects or technologies. In particular the study aimed to identify possibilities for 'removing' the main barriers and thus 'promoting' increased implementation of (RETs), and to 'generalise' the experiences from the case studies and produce results that can be disseminated and utilized further in a planned second phase. The specific objectives for Egypt Country Study were: 1) To determine, on the basis of analysis of the past experience, the barriers against implementation of RETs in Egypt, and to identify the favourable conditions and actions required for such implementation. 2) To apply the knowledge gained and results of the analysis of past projects for a detailed analysis of barriers to a chosen set of potential RETs implementation projects with view to success. 3) To identify specific RET projects for implementation including necessary actions to overcome identified barriers. The case study revealed that; for Domestic Solar Water Heating (DSWH) the main barriers are; the economic barriers followed by the awareness / information barriers, then the Technical and Institution barriers. For the PV rural electrification, the most important barriers are; the economic and financial barriers, the awareness and information barriers then the technical barriers. For the large-scale biogas systems, the main barriers are the institution and capacity, economic, policy and awareness / information respectively. According to the project results the main actions that could be taken to overcome the barriers and make use of the available opportunities are: Economic / Financial: 1) Creation of new financial schemes for the RETs applications components and systems. 2) Reducing the taxes and duties for the components and / or materials needed for Renewable Energy (RE) systems. 3) More government-supported market incentives to encourage further

Implementation of renewable energy technologies - Opportunities and barriers. Egypt country study

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-07-01

The project used case studies of renewable energy implementation projects to analyse the reasons for success or failure of specific projects or technologies. In particular the study aimed to identify possibilities for 'removing' the main barriers and thus 'promoting' increased implementation of (RETs), and to 'generalise' the experiences from the case studies and produce results that can be disseminated and utilized further in a planned second phase. The specific objectives for Egypt Country Study were: 1) To determine, on the basis of analysis of the past experience, the barriers against implementation of RETs in Egypt, and to identify the favourable conditions and actions required for such implementation. 2) To apply the knowledge gained and results of the analysis of past projects for a detailed analysis of barriers to a chosen set of potential RETs implementation projects with view to success. 3) To identify specific RET projects for implementation including necessary actions to overcome identified barriers. The case study revealed that; for Domestic Solar Water Heating (DSWH) the main barriers are; the economic barriers followed by the awareness / information barriers, then the Technical and Institution barriers. For the PV rural electrification, the most important barriers are; the economic and financial barriers, the awareness and information barriers then the technical barriers. For the large-scale biogas systems, the main barriers are the institution and capacity, economic, policy and awareness / information respectively. According to the project results the main actions that could be taken to overcome the barriers and make use of the available opportunities are: Economic / Financial: 1) Creation of new financial schemes for the RETs applications components and systems. 2) Reducing the taxes and duties for the components and / or materials needed for Renewable Energy (RE) systems. 3) More government-supported market incentives

Renewable Energy Certificate and Perform, Achieve, Trade mechanisms to enhance the energy security for India

International Nuclear Information System (INIS)

Kumar, Rajesh; Agarwala, Arun

2013-01-01

The Renewable Energy Certificate and Perform Achieve Trade mechanisms in India are designed to target energy generation and saving, respectively, in line with Clean Development Mechanism implemented by United Nations Framework Convention on Climate Change. The Renewable Energy Certificate System is a voluntary regulation in India for renewable energy generators and is designed for effective implementation of inter-state transactions by introducing the Renewable Purchase Obligation regulation for consumers and a flexible trading platform for transactions across the country. Another initiative, the Perform Achieve Trade scheme, is an enhanced energy efficiency trading mechanism based on consumption targets that require large energy user sectors to improve efficiency by 1–2% per year. The Perform Achieve Trade programme has introduced mechanisms for the identification of industry sector, designated customer, specific energy consumption and target setting. The Perform Achieve Trade design issues are in test phase in the first cycle of the scheme which will run from 2012 to 2015. This paper discusses key design issues about boundary and target setting for Renewable Energy Certificate and Perform Achieve Trade energy saving certificate (ESCert) A data sharing and trading mechanism for Perform Achieve Trade is also proposed for review and coordination among regulator, designated consumers and traders in the market. - Highlights: ► Renewable Energy Certificate’ and ‘Perform Achieve Trade’ are energy certification programmes. ► REC and PAT programme implementation and the institutional network work are presented. ► The trading and communication network propose for possible linkage between REC, PAT and CDM. ► Independent associations in parallel with CERC and BEE are redefined for two tier review of scheme

Metering systems and demand-side management models applied to hybrid renewable energy systems in micro-grid configuration

International Nuclear Information System (INIS)

Blasques, L.C.M.; Pinho, J.T.

2012-01-01

This paper proposes a demand-side management model integrated to a metering system for hybrid renewable energy systems in micro-grid configuration. The proposal is based on the management problems verified in most of this kind of renewable hybrid systems installed in Brazil. The main idea is the implementation of a pre-paid metering system with some control functions that directly act on the consumer demand, restricting the consumption proportionally to the monthly availability of renewable energy. The result is a better distribution of the electricity consumption by month and by consumer, preventing that only one user, with larger purchasing power, consumes all the renewable energy available at some time period. The proportionality between the consumption and the renewable energy's availability has the objective to prevent a lack of energy stored and a high use of the diesel generator-set on months of low renewable potential. This paper also aims to contribute to the Brazilian regulation of renewable energy systems supplying micro-grids. - Highlights: ► Review of the Brazilian electricity regulation for small-scale isolated systems. ► Renewable systems are the most feasible option in several isolated communities. ► One proposal is to guarantee government subsidies for renewable energy systems. ► Smart electronic meters to create electricity restrictions for the consumers.

Renewable Energy Systems: Technology Overview and Perspectives

DEFF Research Database (Denmark)

Blaabjerg, Frede; Ionel, Dan M.; Yang, Yongheng

2017-01-01

In this chapter, essential statistics demonstrating the increasing role of renewable energy generation are first discussed. A state-of-the-art review section covers the fundamentals of wind turbine and photovoltaic (PV) systems. Schematic diagrams illustrating the main components and system topol......, including PV and concentrating solar power; wave energy; fuel cells; and storage with batteries and hydrogen, respectively. Recommended further readings on topics of electric power engineering for renewable energy are included in the final section.......In this chapter, essential statistics demonstrating the increasing role of renewable energy generation are first discussed. A state-of-the-art review section covers the fundamentals of wind turbine and photovoltaic (PV) systems. Schematic diagrams illustrating the main components and system...... topologies are included. Also, the increasing role of power electronics is explained as an enabler for renewable energy integration and for future power systems and smart grids. Recent examples of research and development, including new devices and system installations for utility power plants...