Geothermal Assessment as Part of California's Renewable Energy Transmission Initiative

Basic Information
Author: Pletka, R., Lovekin, J.
Description:Geothermal assessments and cost estimates were performed as part of Californias Renewable Energy Transmission Initiative(RETI) to help guide transmission planning. The RETI assessments identified approximately 5,300 gross megawatts (MW) of additional electrical-generation capacity that could be brought online from geothermal sites within 10 years, including 2,440 gross MW within California. The RETI study area spanned 5 western states and parts of Canada and Mexico. Geothermal assessments were performed for 116 sites in California, Nevada, Oregon, and southern British Columbia. MW capacity estimates were made on a regional basis for Arizona, Washington, and the northern portion of the Mexican state of Baja California Norte (Baja). Capital costs and costs for Operations and Maintenance (OM) were estimated primarily as a function of MW capacity. For most sites, estimated capital costs ranged from 3,000 to 5,500 per gross MW installed, and estimated OM costs ranged from 22 to 35 per gross MWh (2008 dollars). These costs were converted to a net-MW basis in the RETI analysis for purposes of comparison with other renewable energy sources. The Levelized Cost of Energy (LCOE) for most geothermal sites ranged from 65 to 130 per net MWh.
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Author Contact Information
Distributor Contact Information
Organization Name: Arizona Geological Survey
Street: 416 W. Congress St. Ste. 100
City: Tucson
State: Arizona
Zip: 85701
Phone: 520-770-3500
Geographic Extent
North Bounding Latitude: 42.1885750795
South Bounding Latitude: 32.2786958286
East Bounding Longitude: -113.791866919
West Bounding Longitude: -125.305538794