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United States › Power plants › Geothermal plants › California

GEOTHERMAL PLANTS

Coso Power Developers

Coso Power Developers is a 90.0 MW operating geothermal plant in Inyo County, California, operated by Coso Operating Co LLC.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingNov 1989 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
GEN4Geothermal30 MW OperatingNov 1989
GEN5Geothermal30 MW OperatingDec 1989
GEN6Geothermal30 MW OperatingDec 1989

Plant details

Operator
Coso Operating Co LLC
Location
Inyo County, California
Balancing authority
CISO
Sector
IPP Non-CHP
Capacity
Operating: 90.0 MW
First unit online
Nov 1989
EIA plant ID
10874

Location

36.0192, -117.7917

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem