Imperial Valley (United States)
Generation, Geothermal
The Project
The project consists of 10 generating plants in the Salton Sea Known Geothermal Resource Area in Southern California's Imperial Valley. The plants produce electricity solely from naturally occurring geothermal steam. Geothermal production wells tap into superheated water reservoirs thousands of feet beneath the Earth's surface to release tremendous pressure, caused by the hot water, which rushes to the surface. There, steam is separated and used to drive turbines to generate electricity. Eight of the Imperial Valley facilities – Vulcan, Hoch, Elmore, Leathers and Salton Sea 1, 2, 3 and 4 – are under contract to sell power to Southern California Edison Company under 30-year power purchase agreements. Salton Sea 5 and the CE Turbo plant sell virtually all of their power to third parties. The combined capacity at Imperial Valley is approximately 327 net megawatts (nominal).

Owner/Operator
The existing Imperial Valley power generation facilities are owned by CE Generation, LLC and are operated by CalEnergy Operating Corporation, an indirect subsidiary of CE Generation.

Fuel Source:
Geothermal
Location:
Calipatria, California, U.S.
Telephone:
760-348-4200
Date of Commercial Operation:
CE Turbo:
2000
Elmore:
1989
Leathers:
1990
Vulcan:
1986
Del Ranch:
1989
Salton Sea 1:
1982
Salton Sea 2:
1990
Salton Sea 3:
1989
Salton Sea 4:
1996
Salton Sea 5:
2000
Capacity:
Approximately 327 net megawatts (nominal)
Electricity Purchaser:
Southern California Edison Company (Elmore, Leathers, Vulcan, Del Ranch and Salton Sea Units 1 - 4). Virtually all power from Salton Sea Unit 5 and CE Turbo is sold to third parties
Interconnection and Firm
Transmission Agreement:
Transmission lines, owned and operated by Imperial Irrigation District (IID) are used to interconnect each of the operating power plants, except Salton Sea 1, which delivers power directly to SCE, using the IID transmission lines