wk 12 - 2/21/11 D. Shaw 4/7/10 2/21/11 3 Sources...

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Unformatted text preview: 2/21/11 D. Shaw 4/7/10 2/21/11 3 Sources  Geothermal  Solar  Wind 2/21/11 2/21/11 Renewable Energy Cost Trends Levelized cents/kWh in constant $20001 Wind 1980 1990 2000 2010 2020 PV COE cents/kWh 1980 1990 2000 2010 2020 40 30 20 10 100 80 60 40 20 Biomass Geothermal Solar thermal 1980 1990 2000 2010 2020 1980 1990 2000 2010 2020 1980 1990 2000 2010 2020 COE cents/kWh 10 8 6 4 2 70 60 50 40 30 20 10 15 12 9 6 3 Source: NREL Energy Analysis Office (www.nrel.gov/analysis/docs/cost_curves_2002.ppt) 1These graphs are reflections of historical cost trends NOT precise annual historical data. Updated: October 2002 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 Geothermal Reading Assignments Chapter 11 Omit: 11.2.3; 11.3.2; 11.3.5; 11.3.6; 11.4 2/21/11 The Future of Geothermal Primary goal to provide an independent and comprehensive evaluation of EGS as a major US primary energy supplier Secondary goal to provide a framework for informing policy makers of what R&D support and policies are needed for EGS to have a major impact EGS Assessment Project Goals Major impact was defined as enabling 100,000 Mwe (~ 1% of the total electric energy (~10TWe) of an economically viable EGS resource on line or as a true reserve by 2050 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 Geothermal Site Scheme 2/21/11 Methods of Heat Extraction 2/21/11 Geothermal Power Plant 2/21/11 2/21/11 Alternative (binary) power plant cycle 2/21/11 2/21/11 Geothermal Home Heating and 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 The Future of Geothermal 1. EGS resource within the geothermal continuum 2. Technology drilling, reservoir, and conversion 1. Environmental attributes and constraints 2. Economics modeling and projections Approach 4 key parts of the assessment 2/21/11 The Future of Geothermal Quantitative, regional evaluation of current state of knowledge of EGS resources for the US The total resource base within the geothermal continuum from hydrothermal to EGS Estimation of recoverable EGS resource Part 1 EGS resource within the geothermal continuum 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 2/21/11 The Future of Geothermal 30+ Year History of EGS EGS CORE KNOWLED GE BASE Cooper Basin (Australia) Fenton Hill (USA) Soultz (EU) Rose- manowes (UK) Hijiori & Ogachi (Japan) Future US EGS Program Coso, Desert Peak (US) Basel (Swiss) Other European TBD? 2/21/11 Developing stimulation methods to create a well-connected reservoir The critical challenge technically is how to engineer the system to emulate the productivity of a good hydrothermal reservoir Connectivity is achieved between injection...
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wk 12 - 2/21/11 D. Shaw 4/7/10 2/21/11 3 Sources...

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