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Geothermal Energy Annual Report 2004

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Geothermal Energy Annual Report 2004 ( geothermal-energy-annual-report-2004 )

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I. EXECUTIVE SUMMARY MESSAGE FROM THE CHAIR The Executive Committee (ExCo) of the Geothermal Implementing Agreement (GIA) initiated the year 2004 with a revised strategic plan, which sets its general objectives and strategies to the end of the GIA’s current term and possibly beyond. While the joint planning and execution of R&D programmes remain the core of its activities, substantial attention will be given to other means of promoting the worldwide utilization of geothermal resources for primary energy. In the R&D front, specific projects included in the various Annexes reported very important accomplishments during the year 2004. Annex I to the GIA, which covers the first area of concern agreed to be addressed jointly, namely the environmental issues associated with the exploitation of geothermal resources, completed the compilation of papers to be published in a Special Issue of Geothermics in early 2005. Another Special Issue with results derived from Annex I was published by the same journal in 2000. In another line of research, the Hot Dry Rock (HDR) project at Cooper Basin, Australia, where a reservoir at ca 4.4 km depth and temperatures of about 250 oC is being characterized, has scheduled a circulation test early on 2005. Likewise, the HDR Soultz-sous-Forêts project reported important advances in the development and characterization of the deep reservoir/heat exchanger (ca 5000 m depth) with measured temperatures in the order of 200 oC. These two projects look very promising and their success could herald a new era of Enhanced Geothermal Systems (EGS) that would expand the use of geothermal energy. In 2004 the ExCo decided to address a new area of concern, namely that of seismic risk arising from fluid injection in EGS. As a result a new subtask was formally incorporated into Annex I, with participation of the European Commission, the USA and Italy. In addition, a new subtask dealing with field studies of EGS reservoir performance was initiated in Annex III. While other GIA efforts to promote the utilization of geothermal energy are no more important than the above R&D results and initiatives, perhaps they are more noteworthy because they represent steps taken along the new dimensions of the strategic plan. During 2004, the GIA completed the revision and installation of its primary instrument for reaching the interested public, namely the GIA Webpage at: www.iea-gia.org. Through this website the GIA will make accessible information on its organization, activities and achievements; as well as make available a wide range of geothermal publications. In addition, the ExCo has made arrangements for the production of a GIA Brochure, which will be ready for distribution at the GIA booth in the Exhibition Area of the World Geothermal Congress 2005 being held in Antalya, Turkey, in April 2005. Also along the new dimensions of the strategic plan, an informal partnership is evolving between GIA, the IEA Secretariat and the IEA Renewable Energy Working Party. The IEA receives the input of the GIA in the form of reliable and up to date information on geothermal technology and practices; conversely, the GIA utilizes IEA publications and forums to disseminate information and to put forward its recommendations for furthering the utilization of geothermal energy. Through this partnership, the common goal of justly and accurately portraying geothermal as a clean, competitive source of primary energy will be better accomplished. David Nieva Chairman IEA GIA IEA Geothermal R&T Annual Report 2004.doc 2

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