World Power Plants

Coso Power Developers90 MW Geothermal

GeothermalRenewableVerified: Jul 2026

Coso Power Developers is a 90 MW geothermal power plant in the United States, operated by Coso Operating Co LLC since 1989. Ranked #7 of 65 geothermal plants in the United States. Its 90 MW accounts for 2.31% of the country's total geothermal capacity of 3,889 MW. The largest geothermal plant in the United States is Geysers Unit 5-20 at 1,163 MW, making Coso Power Developers 12.9 times smaller. Nearby plants include Coso Finance Partners (92.2 MW, Geothermal), Coso Energy Developers (90 MW, Geothermal), and Argus Cogen Plant (62.5 MW, Coal). The facility is located in California, approximately 50 km from the nearest major city, Ridgecrest.

Capacity
90 MW
Commissioning Year
1989

37 years old

Owner
Coso Operating Co LLC
Location
36.0192°, -117.7917°

United States of America, North America

Context & rankings
  • 2,298. largest of 10,098 plants in United States of America
  • #10,694 worldwide by installed capacity
  • #54 of 215 Geothermal plants worldwide
  • 0.01% of the installed capacity of United States of America
Age & fleet comparison

37 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

Coso Operating Co LLC operates 3 plants totalling 272 MW

Regional density

30 plants within 100 km, 1,429 MW combined

Nearest plant: Coso Energy Developers (1.9 km)

Location

Coordinates:: 36.019200, -117.791700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Coso Power Developers is a geothermal power plant producing approximately 631 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~38 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Geothermal
Energy Source
Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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