Fuel type

Geothermal power plants in the United States

66 geothermal facilities totaling 4.08 GW of nameplate capacity. California leads with 2.87 GW across 32 plants.

66
Plants nationwide
4.08 GW
Total capacity
61.8 MW
Average plant size
California
Top state by capacity

Geothermal capacity by state

California32 · 2.87 GWNevada26 · 1.01 GWUtah3 · 77.1 MWHawaii1 · 51 MWOregon2 · 36.7 MWNew Mexico1 · 19.2 MWIdaho1 · 18 MW

Largest geothermal plants

PlantFuelStateOwnerCapacity
Geysers Unit 5-20GeothermalCaliforniaGeysers Power Co LLC1.16 GW
Calistoga Power PlantGeothermalCaliforniaGeysers Power Co LLC176.4 MW
Geothermal 1GeothermalCaliforniaNorthern California Power Agny110 MW
Geothermal 2GeothermalCaliforniaNorthern California Power Agny110 MW
McGinness HillsGeothermalNevadaOrmat Nevada Inc104 MW
McGinness Hills 3GeothermalNevadaOrmat Nevada Inc98.8 MW
Coso Finance PartnersGeothermalCaliforniaCoso Operating Co LLC92.2 MW
Heber GeothermalGeothermalCaliforniaORCAL Geothermal, Inc91.5 MW
Coso Energy DevelopersGeothermalCaliforniaCoso Operating Co LLC90 MW
Coso Power DevelopersGeothermalCaliforniaCoso Operating Co LLC90 MW
North Brawley Geothermal PlantGeothermalCaliforniaOrmat Nevada Inc80 MW
Sonoma California GeothermalGeothermalCaliforniaGeysers Power Co LLC78 MW
Tungsten MountainGeothermalNevadaTungsten Mountain74.8 MW
Second Imperial GeothermalGeothermalCaliforniaORCAL Geothermal, Inc74.5 MW
Dixie ValleyGeothermalNevadaOrmat Nevada Inc70.9 MW
Stillwater FacilityGeothermalNevadaOrmat Stillwater LLC69.2 MW
NGP Blue Mountain I LLCGeothermalNevadaNGP Blue Mountain I LLC63.9 MW
Patua Acquisition Project, LLCGeothermalNevadaPatua Acquisition Company, LLC58.6 MW
Salton Sea Power LLC - Unit 5GeothermalCaliforniaCalEnergy Operating Corporation58.3 MW
Bottle Rock PowerGeothermalCaliforniaMayacma Geothermal55 MW
John L. Featherstone PlantGeothermalCaliforniaHudson Ranch Power I LLC55 MW
Salton Sea Power Gen Co - Unit 3GeothermalCaliforniaCalEnergy Operating Corporation53.9 MW
Puna Geothermal Venture IGeothermalHawaiiPuna Geothermal Venture51 MW
Salton Sea Power Gen Co - Unit 4GeothermalCaliforniaCalEnergy Operating Corporation47.5 MW
Ormesa IIIGeothermalCaliforniaOrmat Nevada Inc45.6 MW