Geothermal plants in the USA

Geothermal power plants in the United States. Click a state to drill down, or search near a place.

Operating64plants

Operating capacity3,868 MWnameplate

Under construction87.8 MW2 plants

Whole pipeline114 MWplanned, approved and building

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Data: U.S. Energy Information Administration, Form EIA-860M (September 2026). Generators of 1 MW and over. Capacity is nameplate, not output.

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Plants

66 plants · page 1 of 2

Plant	Capacity	Stage	State	Owner / operator	Year
Geysers Unit 5-20	1,236 MW	Operating	CA Sonoma	Geysers Power Co LLC	1971
Calistoga Power Plant	176 MW	Operating	CA Lake	Geysers Power Co LLC	1984
Cape Generating Station	129 MW	Operating	UT Beaver	Cape HoldCo LLC	2026
Geothermal 1	110 MW	Operating	CA Sonoma	Northern California Power Agny	1983
McGinness Hills	104 MW	Operating	NV Lander	Ormat Nevada Inc	2012
McGinness Hills 3	98.8 MW	Operating	NV Lander	Ormat Nevada Inc	2018
Coso Finance Partners	92.2 MW	Operating	CA Inyo	Coso Operating Co LLC	1987
Heber Geothermal	91.5 MW	Operating	CA Imperial	ORCAL Geothermal, Inc	2006
Coso Energy Developers	90.0 MW	Operating	CA Inyo	Coso Operating Co LLC	1988
Coso Power Developers	90.0 MW	Operating	CA Inyo	Coso Operating Co LLC	1989
Sonoma California Geothermal	78.0 MW	Operating	CA Lake	Geysers Power Co LLC	1983
Second Imperial Geothermal	74.5 MW	Operating	CA Imperial	ORCAL Geothermal, Inc	2006
Dixie Valley	70.9 MW	Operating	NV Churchill	Ormat Nevada Inc	1988
Tungsten Mountain	62.5 MW	Operating	NV Churchill	Tungsten Mountain	2017
Salton Sea Power LLC - Unit 5	58.3 MW	Operating	CA Imperial	CalEnergy Operating Corporation	2000
Geothermal 2	55.0 MW	Operating	CA Sonoma	Northern California Power Agny	1986
John L. Featherstone Plant	55.0 MW	Operating	CA Imperial	Hudson Ranch Power I LLC	2012
Salton Sea Power Gen Co - Unit 3	53.9 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1989
Patua Acquisition Project, LLC	48.0 MW	Operating	NV Churchill	Patua Acquisition Company, LLC	2013
Puna Geothermal Venture I	47.5 MW	Operating	HI Hawaii	Puna Geothermal Venture	1992
Salton Sea Power Gen Co - Unit 4	47.5 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1996
Stillwater Facility	47.2 MW	Operating	NV Churchill	Ormat Stillwater LLC	2009
CE Leathers	45.5 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1989
Del Ranch Company	45.5 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1988
Elmore Company	45.5 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1988
NGP Blue Mountain I LLC	45.0 MW	Operating	NV Humboldt	NGP Blue Mountain I LLC	2009
CD4	44.4 MW	Operating	CA Mono	CD4	2022
Vulcan-BN Geothermal Power Company	39.6 MW	Operating	CA Imperial	CalEnergy Operating Corporation	1985
Blundell	38.1 MW	Operating	UT Beaver	PacifiCorp	1984
Neal Hot Springs Geothermal Project	33.0 MW	Operating	OR Malheur	US Geothermal Inc.	2012
Tuscarora Geothermal Power Plant	32.0 MW	Operating	NV Elko	Ormat Nevada Inc	2012
Galena 3 Geothermal Power Plant	31.6 MW	Operating	NV Washoe	Ormat Nevada Inc	2018
Steamboat Hills LP	31.6 MW	Operating	NV Washoe	Ormat Nevada Inc	2020
North Valley	31.5 MW	Operating	NV Washoe	North Valley	2023
Beowawe	29.2 MW	Operating	NV Lander	Ormat Nevada Inc	2024
Fish Lake Geothermal	26.5 MW	In planning	NV Esmeralda	Fish Lake Geothermal LLC	2027
Desert Peak Power Plant	26.0 MW	Operating	NV Lyon	Ormat Nevada Inc	2006
Richard Burdette Geothermal	26.0 MW	Operating	NV Washoe	Ormat Nevada Inc	2005
Soda Lake 3	26.0 MW	Operating	NV Churchill	AMOR IX, LLC	2019
Aidlin Geothermal Power Plant	25.0 MW	Operating	CA Sonoma	Geysers Power Co LLC	1989
Cove Fort	25.0 MW	Operating	UT Beaver	Ormat Cove Fort LLC	2013
Ormesa II	24.0 MW	Operating	CA Imperial	Ormat Nevada Inc	1989
Ormesa III	24.0 MW	Operating	CA Imperial	Ormat Nevada Inc	2007
Salt Wells	23.6 MW	Operating	NV CHURCHILL	Ormat Salt Wells LLC	2009
Jersey Valley Geothermal Power Plant	23.5 MW	Operating	NV Pershing	Ormat Nevada Inc	2010
Star Peak Geothermal Plant	21.9 MW	Operating	NV Pershing	Star Peak Geothermal LLC.	2022
Brady	21.5 MW	Operating	NV Churchill	Ormat Nevada Inc	2002
Steamboat II	20.6 MW	Operating	NV Washoe	Steamboat Development Corp	1992
Steamboat III	20.6 MW	Operating	NV Washoe	Steamboat Development Corp	1992
Don A Campbell 1 Geothermal	20.0 MW	Operating	NV Mineral	ORNI 47, LLC	2014

Operating capacity by state

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Source: U.S. Energy Information Administration, Form EIA-860M, Monthly Update to the Annual Electric Generator Report, September 2026. Includes generators of 1 MW and over at plants connected to the grid. Planned dates are developers' targets reported to EIA and often move. US EV charging map