Browse > Article
http://dx.doi.org/10.9719/EEG.2011.44.6.513

Estimation of Theoretical and Technical Potentials of Geothermal Power Generation using Enhanced Geothermal System  

Song, Yoon-Ho (Geothermal Resources Department, Korea Institute of Geoscience and Mineral Resources)
Baek, Seung-Gyun (Kongju National University)
Kim, Hyoung-Chan (Geothermal Resources Department, Korea Institute of Geoscience and Mineral Resources)
Lee, Tae-Jong (Geothermal Resources Department, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Economic and Environmental Geology / v.44, no.6, 2011 , pp. 513-523 More about this Journal
Abstract
We estimated geothermal power generation potential in Korea through Enhanced Geothermal System (EGS) technology following the recently proposed protocol which was endorsed by international organizations. Input thermal and physical data for estimation are density, specific heat and thermal conductivity measurements from 1,516 outcrop samples, 180 heat production, 352 heat flow, and 52 mean surface temperature data. Inland area was digitized into 34,742 grids of $1 size and temperature distribution and available heat were calculated for 1 km depth interval from 3 km down to 10 km. Thus estimated theoretical potential reached 6,975 GW which is 92 times total generation capacity of Korea in 2010. Technical potential down to 6.5 km and considering land accessibility, thermal recovery ratio of 0.14 and temperature drawdown factor of $10^{\circ}C$ was 19.6 GW. If we disregard temperature drawdown factor, which can be considered in estimating economic potential, the technical potential increases up to 56 GW.
Keywords
geothermal; EGS power generation; theoretical potential; technical potential; generation capacity;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Koo, M.-H., Song, Y. and Lee, J.-H. (2006) Analyzing spatial and temporal variation of ground surface temperature in Korea. Econ. Environ. Geol., v.39, p.255-268.
2 Korea Energy Management Corporation (2008) White paper of new and renewable energy 2008. Ministry of Knowledge Economy, 470p.
3 Lee, T.J. et al. (2008) Development of exploitation technologies for geothermal resources. KIGAM Basic Research Report, GP2007-002-03-2, Ministry of Knowledge Economy, 185p.
4 Lee, Y., Park, S., Kim, J., Kim, H.C. and Koo, M.-H. (2010) Geothermal resource assessment in Korea. Renewable and Sustainable Energy Reviews, v.14, p.2392-2400.   DOI   ScienceOn
5 Rybach, L. (2010) "The future of geothermal energy" and its challeges. Proceedings World Geothermal Congress 2010, Bali, Indonesia, 25-29 April 2010.
6 Song, Y. (2008) Discussion on assessment and competitiveness of the geothermal resources. J. Korean Society for Geosystem Engineering, v.45, p.293-304.
7 Song, Y. (2010) Generation capacity estimation of pilot plant with Enhanced Geothermal System in Korea. J. Korean Society for Geosystem Engineering, v.47, p.245-253.
8 Stefansson, V. (2005) World geothermal assessment. Proceedings World Geothermal Congress 2005, Antalya, Turkey, 24-29 April 2005.
9 Tester et al. (2006) The future of geothermal energy - Impact of Enhanced Geothermal Systems (EGS) on the United States in the 21st century. Massachusetts Institute of Technology, http://www1.eere.energy.gov/geothermal/future_geothermal.html.
10 Ahn, E.-Y. and Song, Y. (2010) Preliminary economic analysis of Enhanced Geothermal System for power generation under FITs and RPS in Korea. J. Korean Society for Geosystem Engineering, v.47, p.254-266.
11 Beardsmore, G.R., Rybach, L., Blackwell, D. and Baron, C. (2010) A protocol for estimating and mapping the global EGS potential. GRC Transactions, v.34, p.301-312.
12 Bertani, R. (2003) What is geothermal potential? IGA News, v.53, p.1-3.
13 Bertani, R. (2010) Geothermal power generation in the world: 2005-2010 update report. Proceedings World Geothermal Congress 2010, Bali, Indonesia, 25-30 April 2010.
14 Blackwell, D.D., Negraru, P.T. and Richards, M.C. (2007) Assessment of the Enhanced Geothermal System resource base of the United States. Natural Resources Research, v.15, p.283-308, doi:10.1007/s11053-007-9028-7.   DOI   ScienceOn
15 Fridleifsson, I.B., Bertani, R., Huenges, E., Lund, J.W., Ragnarsson, A. and Rybach, L. (2008) The possible role and contribution of geothermal energy to the mitigation of climate change. in Hohmeyer, O., and Trittin, T. (Eds.) IPCC Scoping Meeting on Renewable Energy Sources, Proceedings, Luebeck, Germany, 20-25 January, p.59-80.
16 IEA (2010) Renewable energy essentials: Geothermal. International Energy Agency, http://www.iea.org.
17 Kim, H. C. and Lee, Y. (2007) Heat flow in the Republic of Korea. J. Geophys. Res., v.112, B05413, doi:10.1029/2006JB004266.