Geothermal power stations in the United States are located exclusively within the Western United States where geothermal energy potential is highest. The highest concentrations are located in the Mayacamas Mountains and Imperial Valley of California, as well as in Western Nevada.
The first geothermal area to be exploited for commercial electricity generation was The Geysers, a complex of 22 geothermal power stations located in Sonoma and Lake counties of California, which was commissioned in September 1960. The complex was then developed into the largest geothermal field in the world, with a nameplate capacity of 1,517 MW and an annual generation of 6,516 GWh in 2018.
Geothermal power plants/complexes This is a list of all geothermal power plants/complexes currently in operation in the United States. Name State Location Capacity(MW) Annual generation(GWh) Owner Type Beowawe 19.2 (2018) Terra-Gen Power Flash steam (87%),binary cycle (13%) 1985 Blue Mountain 50 (2018) Cyrq Energy Binary cycle 2009 Blundell 11 (2018) PacifiCorp 2007 Brady 21.5 (2018) Ormat 1992 Casa Diablo IV30OrmatBinary cycle2022 Coso 272.3 1,176 (2018) Coso Operating Company Flash steam 1987 Cove Fort 27 (2018) Enel Green Power 2014 Desert Peak 92 (2018) Ormat Flash steam (71.7%),binary cycle (28.3%) 1985 Dixie Valley 61 (2018) Terra Gen Power Flash steam (99%),binary cycle (1%) 1988 Don A. Campbell 39 (2018) Ormat 2013 1,590 6,516 (2018) Calpine, NCPA, SVP, USRG Dry steam 1960 Heber 161.5 (2018) Ormat Binary cycle 1985 Imperial Valley 432.3 1,741 (2018) CalEnergy, EnergySource Dry steam 1982 Jersey Valley 10 (2018) Ormat 2011 Lightning Dock 4 (2018) Zanskar Geothermal & Minerals Binary cycle 2014 Mammoth 40 (2018) Ormat Binary cycle 1984 McGinness Hills 138 (2018) Ormat Binary cycle 2012 Neal Hot Springs 22 (2018) Ormat 2012 North Brawley 64 (2018) Ormat Binary cycle 2010 Ormesa 101.6 (2018) Ormat Binary cycle 1987 Patua 70 (2018) Cyrq Energy Binary cycle (85.7%),solar PV (14.3%) 2017 Puna 38 (2017) Ormat Binary cycle 1992 Raft River 11 (2018) Ormat Binary cycle 2008 Salt Wells 13.4 (2018) Enel Green Power Binary cycle 2012 San Emidio 11 (2018) Ormat 2012 Soda Lake 37 (2018) Cyrq Energy 1987 Steamboat 73 (2018) Ormat Binary cycle (80.3%),flash steam (19.7%) 1988 Stillwater 75 (2018) Enel Green Power Binary cycle (65.3%),solar PV (34.7%) 2009 Thermo 1 13 (2018) Cyrq Energy 2013 Tungsten Mountain 27 (2018) Ormat 2017 Tuscarora 18 (2018) Ormat 2012 Wabuska 4 (2017) Open Mountain Energy Binary cycle 1984
Notes
Proposed Name StateLocation Capacity(MW) Owner Type Hell's Kitchen 140 Controlled Thermal Resources 2025 Fervo Cape 2000 Fervo Energy 2026
See also List of geothermal power stations List of power stations in the United States by type Natural hydrogen Plasma deep drilling technology
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