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Enhanced Geothermal Systems (EGS) Enhanced geothermal systems (EGS) technologies are being developed to exploit the deep, extremely large "heat" resources that exist almost anywhere on earth, in a sustainable and environmentally acceptable manner for both electricity generation and direct use applications. The EGS Protocol The EGS Protocol provides a mechanism to estimate and map the theoretical and technical potential for enhanced (also known as engineered) geothermal systems in a globally self-consistent manner. In early September 2011, the IEA-GIA Executive Committee endorsed the May 2011 version, published as: A Protocol for Estimating and Mapping Global EGS Potential by G. Beardsmore, L. Rybach, D. Blackwell and C. Baron, with the caveat: This EGS Protocol has been reviewed by recognized international geothermal experts, including the IEA-GIA Executive Committee, and is found to provide a sound foundation for estimating regional EGS resources. It constitutes an excellent framework to build on for more detailed, local assessments for EGS resources, but is not a prescriptive international Code of Practice. Since the Protocol is a "living" document, it will be revised from time to time, and the version available here will be replaced as it develops. To access the EGS Protocol, click: EGS Protocol (pdf, 5.7 MB) The EGS PMDA The EGS-PMDA- Technical and organizational data and knowledge accumulated over some 30 years at many EGS research projects in different countries has now been synthesized and developed into the first version of an EGS- Project Management Decision Assistant (PMDA) tool as part of the work in Annex III Task C. The EGS-PMDA handbook for starting new EGS projects, which has now been distributed to over 10 institutions, is still available. For Institutions in GIA Member Countries [Australia, France, Germany, Iceland, Italy, Japan, Mexico, New Zealand, Republic of Korea, Switzerland and the United States] and Institution/Industry Members [Geodynamics, Green Rock Energy and ORMAT Technologies] the cost is: US$ 220 (including shipping). For others is: US$ 300 ( including shipping). For further information, or to order, contact: Thomas Megel To read an overview of the EGS-PMDA, click: IEA-GIA PMDA (pdf, 555 kB)
---------------------------- World Geothermal Congress 2010 All WGC 2010 papers are available through the following link: www.geothermal-energy.org/304,iga_geothermal_conference_database.html IEA-GIA and IPCC Contributions to the World Geothermal Congress 2010 To access IEA-GIA and IPCC WGC 2010 Power Point Presentations, click: Axelsson, G., Bromley, C.J., Mongillo, M.A. and Rybach, L. 2010. (pdf, 1.1 MB) The Sustainability Task of IEA's Geothermal Implementing Agreement. Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. Bromley, C.J. 2010. (pdf, 710 kB) Promoting Beneficial Environmental Effects and Improving Long-Term Utilization Strategies Through IEA-GIA Collaboration. Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. Bromley, C.J., Hiriart, G., Goldstein, B., Bertani, R., Huenges, E., Ragnarsson, A., Tester, J., Muraoka, H. and Zui, V., Mongillo, M.A. and Gutierrez-Negrin, L. 2010. (pdf, 953 kB) Contribution of Geothermal Energy to Climate Change Mitigation: the IPCC Renewable Energy Report. Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. Gunnlaugsson, E. 2010. (pdf, 2.1 MB) EIA-GIa Annex VIII- Direct Use of Geothermal Energy. Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. Mongillo, M.A. and Bromley, C.J. 2010. (pdf, 2.7 MB) The International Energy Agency Geothermal Implementing Agreement- International Efforts to Promote Global Sustainable Geothermal Development and Help Mitigate Climate Change (PPT presentation by C. Bromley). Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. Song, Y., Gunnlaugsson, E., Muraoka, H., Bromley, C., Rybach, L. and Lund, J. 2010. (pdf, 750 kB) Barrier and Opportunity Identificationin Geothermal Direct Use: A Task of Collaborative Research under IEA-GIA. Proceedings WGC2010 Bali, Indonesia, 25-30 April 2010. ---------------------------- GRC 2009 Annual Meeting Mongillo, M.A., Bromley, C.J., and Rybach, L. 2009. (pdf, 83 kB) IEA-GIA International Geothermal Cooperation- Going from Strength to Strength. Transactions 2009 GRC, Reno, USA, 4-7 October 2009, 8 pp. (CD-Rom). ---------------------------- Sustainable Geothermal Utilization The promotion of sustainable utilization of geothermal energy is the main aim of the IEA-GIA for the 2007-2012 period. As part of this effort, we are providing access to recent presentations, papers and a comprehensive list of references here. Iceland Sustainability Report The National Energy Authority of Iceland, Orkustofnun, has recently released a final report on sustainable geothermal energy utilization. Though the report is in Icelandic, it includes an English summary (pp. 7-9) and a valuable table that presents proposed goals of sustainable geothermal utilization (p. 136). To access, click: Sustainability Report (pdf, 8.5 MB) Presentations from November 2008 IEA-GIA Sustainability Modelling Workshop An IEA-GIA International Geothermal Sustainability Modelling Workshop was held in Taupo, New Zealand, on 10 November 2008. Copies of the Workshop presentations are available below. Please direct any comments to: GIA Secretary To access Presentations, click: Axelsson- Sustainability Modelling Overview 1 (pdf, 638 kB) Bjornsson- Hengill Sustainability & Renewability (pdf, 2.4 MB) Bromley- Sustainability Modelling Overview 2 (pdf, 2.2 MB) Clotworthy- Development End Point (pdf, 275 kB) Cumming- Decisions & Risk (pdf, 210 kB) Ehara- Hatchobaru Sustainability & Gravity (pdf, 784 kB) Kamojang- History & Future (pdf, 1.6 MB) Kaya & O'Sullivan- Modelling Injection (pdf, 1.4 MB) Kissling- Modeller's Perspective (pdf, 2.7 MB) Leary (pdf, 981 kB) Mongillo- IEA-GIA Sustainability Efforts (pdf, 532 kB) Montalvo- Ahuacapan Improving Capacity (pdf, 3.1 MB) Monterrosa Ahuachapan Guide for Assessing Sustainability (pdf, 261 kB) Onacha- Geophysical Data & Modelling (pdf, 2.3 MB) O'Sullivan- Wairakei (pdf, 2.9 MB) Siddiqi- Riehen 15 Years of District Heating (pdf, 1.9 MB) White- Water Production & Sustainability (pdf, 527 kB) Zarrouk & O'Sullivan- Modelling Ohaaki (pdf, 1.4 MB) Lopez- Dogger Aquifer Management, Paris Basin (pdf, 480 kB) Szanyi & Kovács- Reinjection Experience in SE Hungary (pdf, 1.5 MB) ---------------------------- Recent Sustainability Reference List and Papers Geothermal Sustainability Reference List (revised 19 Sept 2011) To access, click: Sustainability Reference List (pdf, 73 kB) ---------- Geothermal Resources- Utilization Strategies to Promote Beneficial Environmental Effects and to Optimize Sustainability (This paper incorporates information from GIA Participants. It was presented at the Renewable Energy Conference 2006, Chiba, Japan) To access, click: Sustainable Use (pdf, 62 kB) Geothermal Sustainability- A Review with Identified Research Needs (Though not a GIA policy paper, this paper was written as an initial step in developing a GIA policy on sustainable use of geothermal energy. It was presented at the GRC 2006 Annual Meeting, San Diego, USA) To access, click: Geothermal Sustainability (pdf, 736 kB) ---------------------------- Papers/Reports- for Review and Comment Desired High Temperature Geothermal Equipment & Tools Your comments and suggestions on Desired Equipment/Tools/Techniques for High Temperature Geothermal Applications are requested. Please send your comments to: Dr Steve Bauer, with a copy to: GIA Secretary. The DEADLINE for receipt of comments is: 31 January 2009. To access the list, click: HT Tools (pdf, 17 kB) --------------- IPCC Geothermal Document The geothermal contribution to the Intergovernmental Panel on Climate Change (IPCC) proceedings (20-25 January 2008): The Possible Role and Contribution of Geothermal Energy to the Mitigation of Climate Change is available below for your comment. Note that it does not represent the views or opinions of the IEA-GIA. Please send your comments to: GIA Secretary- IPCC Geothermal Comments The DEADLINE for receipt of comments is: 22 June 2008. To access, click: IPCC Geothermal (pdf, 0.63 MB) To access the entire IPCC Proceedings, click: IPCC Proceedings (pdf, 16.9 MB) To access Comments Received as of 17 June 2008, click: IPCC Geothermal Comments 1 (pdf, 3 kB) IPCC Geothermal Comments 2 (pdf, 6 kB) IPCC Geothermal Comments 3 (pdf, 4 kB) IPCC Geothermal Comments 4 (pdf, 3 kB) IPCC Geothermal Comments 5 (pdf, 4 kB) IPCC Geothermal Comments 6 (pdf, 3 kB) IPCC Geothermal Comments 7 (pdf, 3 kB) IPCC Geothermal Comments 8 (pdf, 11 kB) IPCC Geothermal Comments 9 (pdf, 10 kB) IPCC Geothermal Comments 10 (pdf, 3 kB) IPCC Geothermal Comments 11 (pdf, 6 kB) IPCC Geothermal Comments 12 (pdf, 12 kB) IPCC Geothermal Comments 13 (pdf, 53 kB) IPCC Geothermal Comments 14 (pdf, 31 kB) IPCC Geothermal Comments 15 (pdf, 10 kB) ---------------------------- Papers/Reports- Drafts No documents at this time ---------------------------- Papers/Reports/Handbooks/Presentations- Published Induced Seismicity Induced seismicity is one of the most important geothermal issues currently being investigated, especially in association with the development of Enhanced Geothermal Systems (EGS). The following papers/reports describe some of the most recent work on this topic. Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems (IEA-GIA report produced in Annex I Task D, final version: 9 April 2008) To access, click: Protocol for Induced Seismicity EGS (pdf, 43 kB) Geothermal Energy from Fractured Reservoirs- Dealing with Induced Seismicity (Published in the IEA OPEN Bulletin #48, February 2008) To access, click: Induced Seismicity Cooper Basin HDR Hazard Evaluation: Predictive Modelling of Local Stress Changes due to HFR Geothermal Energy Operations in South Australia (Note that this document does not represent the views or opinions of the IEA-GIA.) The report may be accessed at: PIRSA (pdf, 7.86 MB) Induced Seismicity Associated with Enhanced Geothermal Systems (Produced in association with Annex I research and now published in: Geothermics, vol. 36 (2007), 185-222) --------------- IEA-GIA Organization The IEA-Geothermal Implementing Agreement (GIA)- Advancing into its Third Term. (Presented at the IEA Networks of Expertise in Energy Technology (NEET) Workshop in Beijing, China, 1-2 November 2007) To access, click: GIA NEET (pdf, 691 kB) --------------- IEA-GIA Annual Reports 2009 GIA Annual Report To download the entire report, click: GIA 2009 Annual Report (pdf, 10.9 MB) Chapter 6 Appendices Appendix 6A (Word, 215 kB) Appendix 6B (Word, 107 kB) 2008 GIA Annual Report To download the entire report, click: GIA 2008 Annual Report (pdf, 11.2 MB) To download the Executive Summary, click: Executive Summary (pdf, 690 kB)
2007 GIA Annual Report Individual sections may be downloaded below: Message from Chairman (pdf, 175 kB) Executive Summary (pdf, 4.0 MB) Synopsis National & Sponsor Reports (pdf, 1.8 MB) GIA Implementing Agreement & Annexes (pdf, 8.3 MB) Australia & EC (pdf, 6.7 MB) France & Germany (pdf, 5.7 MB) Iceland & Italy (pdf, 3.4 MB) Japan, Korea & Mexico (pdf, 9.0 MB) New Zealand, Switzerland & USA (pdf, 8.7 MB) Geodynamics, Green Rock, Ormat (pdf, 3.1 MB) To download the entire report, click: GIA 2007 Annual Report (doc, 23 MB)
Executive Summary (pdf, 2.1 MB)
Executive Summary (pdf, 130 kB)
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The IEA Geothermal Implementing Agreement- Its Goals, Activities, Benefits, Obligations and Costs (13 November 2007)
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Titles of papers reporting recent work conducted as part of GIA Annex activities may be found in Section 12 of the GIA 2002-2007 End of Term Report (see above). Annex I Environmental Impacts of Geothermal Energy Development Hunt, T.M. (Ed.): 2005. Special Issue on Environmental Aspects of Geothermal Development. Geothermics, 34, No. 2. --------------- Annex III Enhanced Geothermal Systems (EGS)
An Enhanced Geothermal Systems Economic Model: http://web.mit.edu/hjherzog/www/ --------------- Annex IV Deep Geothermal Resources
--------------- Annex VII Advanced Geothermal Drilling Techniques
(Please send your comments to: Dr Steve Bauer) --------------- Annex VIII Direct Use of Geothermal Energy Muraoka, H., Sakaguchi, K., Nakao, S. and Kimbara, K. 2006. Discharge temperature- discharge rate correlation of Japanese hot springs driven by bouyancy and its application to permeability mapping. Geophysical Research Letters, 33, L10405, doi:10.1029/2006GL026078, 2006, 4 p. |
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