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[en] In today's electricity generation system, different resources make different contributions to the electricity grid. This fact sheet illustrates the roles of distributed and centralized renewable energy technologies, particularly solar power, and how they will contribute to the future electricity system. The advantages of a diversified mix of power generation systems are highlighted.
[en] After two years of very strong growth, the solar thermal market (taking all technologies including unglazed flexible collectors into account) marked time in 2007 with 6.9% less collectors being sold with respect to year 2006. In the end, this market reached 2.9 million m2 vs. 3.1 million m2 in 2006, i.e. an equivalent capacity of more than 2000 MWth. This decrease is explained for a large part by a strong decline of the German market, the largest market of the European Union. Conversely, other countries are continuing to develop their markets and are showing double-digit growth rates
[en] This project's mission was to achieve significant advances in the practical application of bulk high-temperature superconductor (HTS) materials to energy-storage systems. The ultimate product was planned as an operational prototype of a flywheel system on an HTS suspension. While the final prototype flywheel did not complete the final offsite demonstration phase of the program, invaluable lessons learned were captured on the laboratory demonstration units that will lead to the successful deployment of a future HTS-stabilized, composite-flywheel energy-storage system (FESS)
[en] The Wilmar Planning Tool is developed in the project Wind Power Integration in Liberalised Electricity Markets (WILMAR) supported by EU (Contract No. ENK5-CT-2002-00663). A User Shell implemented in an Excel workbook controls the Wilmar Planning Tool. All data are contained in Access databases that communicate with various sub-models through text files that are exported from or imported to the databases. The Joint Market Model (JMM) constitutes one of these sub-models. This report documents the Joint Market model (JMM). The documentation describes: 1. The file structure of the JMM. 2. The sets, parameters and variables in the JMM. 3. The equations in the JMM. 4. The looping structure in the JMM. (au)
[en] This is a documentation of the VBA (Visual Basic for Applications) in the Wilmar Planning Tool. VBA is used in the Wilmar User Shell (an Excel workbook) and in the three Access databases that hold input, scenario and output data. The Wilmar Planning Tool is developed in the project Wind Power Integration in Liberalised Electricity Markets (WILMAR) supported by EU (contract ENK5-CT-2002-00663). The User Shell controls the operation of the Wilmar Planning Tool. In the User Shell various control parameters are set, and then a macro in the Input Database is run that writes input files for the Joint market Model and the Long Term Model. Afterwards these models can be started from the User Shell. Finally, the User Shell can start a macro in the Output Database that imports the output files from the models. (LN)
[en] This is a short user guide to the Wilmar Planning Tool developed in the project Wind Power Integration in Liberalised Electricity Markets (WILMAR) supported by EU (Contract No. ENK5-CT-2002-00663). A User Shell implemented in an Excel workbook controls the Wilmar Planning Tool. All data are contained in Access databases that communicate with various sub-models through text files that are exported from or imported to the databases. In the User Shell various scenario variables and control parameters are set, and export of model data from the input database, activation of the models, as well as import of model results to the output database are triggered from the shell. (au)
[en] The Wilmar Planning tool consists of a number of databases and models as shown in Figure 1. This report documents the design of the following subparts of the Wilmar Planning tool: 1. The Scenario database holding the scenario trees generated from the Scenario Tree Creation model. 2. The Input database holding input data to the Joint Market model and the Long-term model apart from the scenario trees. 3. The output database containing the results of a Joint Market model run. The Wilmar Planning Tool is developed in the project Wind Power Integration in Liberalised Electricity Markets (WILMAR) supported by EU (contract ENK5-CT-2002-00663). (LN)
[en] Both wind power technology and power systems have developed dramatically during the last 20 years. Wind power has met the operation requirements defined by the power system, while the focus for the development of the power system has been on the liberalisation with the result that the power system is lacking in its ability to integrate intermittent renewable power - in specific wind power. This paper outlines the development so far and goes through a number of means in order to establish the necessary flexibility in the power system-flexibility in the generation, flexibility in the consumption, better utilisation of the transmission capacities, links between the various energy sectors and change of market structures. (orig.)
[en] This paper provides a comprehensive review of the opportunities and challenges from trading of wind power in power markets. The opportunities are the low operating costs, government incentive/subsidy program, reduction of market price, reduction of carbon dioxide, reduction of network loss, etc. The challenges would be technical requirements for power system integration, high investment cost, increased requirement on regulation power due to wind forecast error, more price volatile, more market competition for other generations, etc. The opportunities and challenges are discussed from different market players' perspectives. Some suggestions for possible measures to overcome those challenges are presented. (au)
[en] This guide presents an overview of the process for successfully planning for and installing solar technology on a federal site. It is specifically targeted to managers of federal buildings and sites, contracting officers, energy and sustainability officers, and regional procurement managers. The solar project process is outlined in a concise, easy-to-understand, step-by-step format. Information includes a brief overview of legislation and executive orders related to renewable energy and the compelling reasons for implementing a solar project on a federal site. It also includes how to assess a facility to identify the best solar installation site, project recommendations and considerations to help avoid unforeseen issues, and guidance on financing and contracting options. Case studies with descriptions of successful solar deployments across multiple agencies are presented. In addition, detailed information and sample documents for specific tasks are referenced with Web links or included in the appendixes. The guide concentrates on distributed solar generation and not large, centralized solar energy generation.