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United States › Power plants › Hydroelectric plants › California

HYDROELECTRIC PLANTS

Potter Valley

Potter Valley is a 9.4 MW out of service hydroelectric plant in Mendocino County, California, operated by Pacific Gas & Electric Co..

Plant statusMothballed
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingMar 1910 (completed)
  5. Mothballed (current stage)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
1Conventional Hydroelectric4.4 MW Out of service long-termFeb 1939
3Conventional Hydroelectric3.0 MW Out of service long-termSep 1917
2Conventional Hydroelectric2.0 MW Out of service long-termMar 1910

Plant details

Operator
Pacific Gas & Electric Co.
Location
Mendocino County, California
Balancing authority
CISO
Sector
Electric Utility
Capacity
Out of service: 9.4 MW
First unit online
Mar 1910
EIA plant ID
274

Location

39.3618, -123.1279

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