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Classification of Geothermal Resources by Potential : Volume 3, Issue 1 (24/03/2015)

By Rybach, L.

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Book Id: WPLBN0004009981
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: Classification of Geothermal Resources by Potential : Volume 3, Issue 1 (24/03/2015)  
Author: Rybach, L.
Volume: Vol. 3, Issue 1
Language: English
Subject: Science, Geothermal, Energy
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Rybach, L. (2015). Classification of Geothermal Resources by Potential : Volume 3, Issue 1 (24/03/2015). Retrieved from http://www.ebooklibrary.org/


Description
Description: Institute of Geophysics ETHZ, Zurich, Switzerland. When considering and reporting resources, the term geothermal potential is often used without clearly stating what kind of potential is meant. For renewable energy resources it is nowadays common to use different potentials: theoretical, technical, economic, sustainable, developable – decreasing successively in size. In such a sequence, the potentials are progressively realizable and more and more rewarding financially. The theoretical potential describes the physically present energy, the technical potential the fraction of this energy that can be used by currently available technology and the economic potential the time- and location-dependent fraction of the previous category; the sustainable potential constrains the fraction of the economic potential that can be utilized in the long term; the developable potential is the fraction of the economic resource which can be developed under realistic conditions. In converting theoretical to technical potential, the recovery factor (the ratio extractable heat/heat present at depth) is of key importance. An example (global geothermal resources) is given, with numerical values of the various potentials. The proposed classification could and should be used as a kind of general template for future geothermal energy resources reporting.

Summary
Classification of geothermal resources by potential

Excerpt
Australian Geothermal Reporting Code Committee, The Australian Code for Reporting of Exploration Results, Geothermal Resources and Geothermal Reserves, Second Edition, http://www.agea.org.au/media/docs/the_geothermal_reporting_code_ed_2.pdf, last access 20 June 2014, 2010.; Australian Geothermal Reporting Code Committee, The Geothermal Lexicon for Resources and Reserves Definition and Reporting, Second Edition, http://www.agea.org.au/media/docs/geothermal_lexicon_2010.pdf, last access 20 June 2014, 2010.; Beardsmore, G., Rybach, L., Blackwell, D., and Baron, Ch.: A Protocol for estimating and mapping the global EGS potential, Geothermal Resources Council Transactions, 34, 301–312, 2010.; Beardsmore, G.: Global Review of Geothermal Reporting Terminology – Prepared for members of the International Energy Agency – Geothermal Implementing Agreement, http://iea-gia.org/category/publications/, last access 20 June 2014, 2013.; Canadian Geothermal Energy Association. The Canadian Geothermal Code for Public Reporting, http://www.cangea.ca/geothermal-code-for-public-reporting.html, last access 16 March 2015, 2010.; Geothermal Energy Association. New Geothermal Terms and Definitions – a Guide to Reporting Resource Development Progress and Results to the Geothermal Energy Association, 17 pp., energy.org/pdf/NewGeothermalTermsandDefinitions_January2011.pdf>http://geo-energy.org/pdf/NewGeothermalTermsandDefinitions_January2011.pdf, last access 20 June 2014, 2010.; McPherson-Grant, G. and Baria, R.: Case study: The UK's First Geothermal Power Plant, GeoPower Europe Munich http://www.greenpowerconferences.com, last access 20 June 2014, 2009.; Rybach, L.: The Future of Geothermal Energy and Its Challenges, Proceedings of the World Geothermal Congress 2010 Bali, Indonesia, 25–29 April 2010, available at: energy.org/pdf/IGAstandard/WGC/2010/3109.pdf>http://www.geothermal-energy.org/pdf/IGAstandard/WGC/2010/3109.pdf, 2010,; Rybach, L. and Mongillo, M.: Geothermal Sustainability – A Review with Identified Research Needs, Geothermal Resources Council Transactions, 30, 1083–1090, 2006.; United Nations Economic Commission for Europe. United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources 2009 (UNFC-2009), ECE Energy Series No. 39. January 2010, energy/se/reserves>http://www.unece.org/energy/se/reserves, last access 20 June 2014, 2010.; van Wees, J.-D., Boxem, T., Calcagno, P., Lacasse, L., and Manzella, A.: A Resource assessment protocol for GEO-ELEC. A living document produced by the GEO-ELEC Project, 23 November 2011, 18 pp., http://www.geoelec.eu/wp-content/uploads/2012/04/GEOELEC_RESOURCE-ASSESMENTPROTOCOL_v-16-dec-2011.pdf, last access 20 June 2014, 2011.; Voivontas, D., Assimacopoulos, D., Mourelatos, A.: Evaluation of renewable energy potential using a GIS decision support system, Renewable Energy, 13, 333–344, 1998.; Williams, C. F.: Updated methods for estimating recovery factors for geothermal resources. PROCEEDINGS, Thirty-Second Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 22–24, 2007 SGP-TR-183, 2007.


 

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