Levelized Cost of Geothermal Power - How Sensitive Is It?

Basic Information
Author: Sanyal, S.K.
Description:This paper analyzes the sensitivity of the levelized cost of geothermal power to: (a) capital cost; (b) operations and maintenance (O and M) cost; (c) make-up well drilling cost; (d) resource characteristics (well productivity and its rate of decline); (e) development and operational options (installed plant capacity, number of years of make-up well drilling, and project life); and (f) macro-economic climate (interest and inflation rates). We consider here the levelized cost of power (in cents per kilowatthour) over the project life, the capital cost being amortized over 30 years; any royalties, tax burden, or tax credit are ignored. A range of development sizes, from 5 to 150 MW, with 50 MW as the base case, is considered. The economy of scale in both capital cost and O and M cost, as well as the higher productivity decline rate due to increased installed capacity, are taken into account. The capital cost does not include transmission line cost or any unusually site-specific costs of regulatory compliance or environmental impact mitigation.
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Author Contact Information
Distributor Contact Information
Organization Name: Arizona Geological Survey
Street: 416 W. Congress St., Suite 100
City: Tucson
State: AZ
Zip: 85701
Phone: 520-770-3500
Geographic Extent
North Bounding Latitude: 39.4556
South Bounding Latitude: 34.9786
East Bounding Longitude: -116.719
West Bounding Longitude: -123.398