The Relative Cost of Engineered Geothermal System (EGS) Exploration and Development in Australia
- Key words
- Levelized Cost, LCOE, HSA, EGS, heat flow, NPV
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 31. EGS - Enhanced Geothermal Systems (Hot Dry Rock)
- Language
- English
- Paper number
- 3115
Full text
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Abstract
Generalised cash-flow models for geothermal exploration and development projects in Australia have been created for a hypothetical case using different play concepts, heat flow conditions and site-specific costs. A comparison of the levelised cost of power production for play types and site-specific costs have been generated using standard assumptions for flow rate and temperature.
A sensitivity analysis of model variables, including conductive heat flow, demonstrate the relative advantages and disadvantages of Engineered Geothermal System (EGS) plays over Hot Sedimentary Aquifer (HSA) plays. For smaller-scale developments (
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