Economic Predictions for 240MWe Hot Dry Rock Geothermal Power Station
- Key words
- Hot Dry Rock; Economics; Japan; Costs; Drilling; Forecasts; Comparative Evaluation
- Location
- Japan
- Conference
- Geothermal Resources Council Transactions
- Year
- 1991
- Session
- HDR/EGS; Economics; Power plant design and operation
- Language
- English
Abstract
Based upon the present condition of geothermal resources and drilling technology in Japan, the break even cost of producing electricity is 12.7/KWh at the bus bar. This cost is estimated for a 15 year operation of 5 injection wells and 11 production wells, HDR system producing 240 MW. The study was based on an HDR system covering a subterranean land area of 1,200 m by 1,800 m at a depth of 4,000 m, having an average temperature of 300 degrees C. A double flash system was assumed for the power station. 16 sites suitable for the HDR system have been located in Japan through an analysis of data made available by MITI.
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