California · Geothermal

Geothermal power plants in California

There are 32 geothermal plants in California in this directory, with a combined nameplate capacity of 2.87 GW. The largest is Geysers Unit 5-20 at 1.16 GW.

32
Plants
2.87 GW
Combined capacity
89.6 MW
Average plant size
1992
Avg. commissioning year
PlantFuelOwnerCapacity
Geysers Unit 5-20GeothermalGeysers Power Co LLC1.16 GW
Calistoga Power PlantGeothermalGeysers Power Co LLC176.4 MW
Geothermal 1GeothermalNorthern California Power Agny110 MW
Geothermal 2GeothermalNorthern California Power Agny110 MW
Coso Finance PartnersGeothermalCoso Operating Co LLC92.2 MW
Heber GeothermalGeothermalORCAL Geothermal, Inc91.5 MW
Coso Energy DevelopersGeothermalCoso Operating Co LLC90 MW
Coso Power DevelopersGeothermalCoso Operating Co LLC90 MW
North Brawley Geothermal PlantGeothermalOrmat Nevada Inc80 MW
Sonoma California GeothermalGeothermalGeysers Power Co LLC78 MW
Second Imperial GeothermalGeothermalORCAL Geothermal, Inc74.5 MW
Salton Sea Power LLC - Unit 5GeothermalCalEnergy Operating Corporation58.3 MW
Bottle Rock PowerGeothermalMayacma Geothermal55 MW
John L. Featherstone PlantGeothermalHudson Ranch Power I LLC55 MW
Salton Sea Power Gen Co - Unit 3GeothermalCalEnergy Operating Corporation53.9 MW
Salton Sea Power Gen Co - Unit 4GeothermalCalEnergy Operating Corporation47.5 MW
Ormesa IIIGeothermalOrmat Nevada Inc45.6 MW
CE LeathersGeothermalCalEnergy Operating Corporation45.5 MW
Del Ranch CompanyGeothermalCalEnergy Operating Corporation45.5 MW
Elmore CompanyGeothermalCalEnergy Operating Corporation45.5 MW
CD4GeothermalCD444.4 MW
Vulcan-BN Geothermal Power CompanyGeothermalCalEnergy Operating Corporation39.6 MW
Aidlin Geothermal Power PlantGeothermalGeysers Power Co LLC25 MW
Ormesa IGeothermalOrmat Nevada Inc24 MW
Ormesa IIGeothermalOrmat Nevada Inc24 MW
Geo East Mesa IIGeothermalOrmat Nevada Inc21.6 MW
Salton Sea Power Gen Co - Unit 2GeothermalCalEnergy Operating Corporation20 MW
Mammoth G2GeothermalOrmat Nevada Inc15 MW
Mammoth G3GeothermalOrmat Nevada Inc15 MW
CE Turbo LLCGeothermalCalEnergy Operating Corporation11.5 MW
Mammoth G1GeothermalOrmat Nevada Inc10 MW
Salton Sea Power Gen Co - Unit 1GeothermalCalEnergy Operating Corporation10 MW