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United States › Power plants › Battery storage › California

BATTERY STORAGE

Separator (Etiwanda) BESS

Separator (Etiwanda) BESS is a 113 MW operating battery storage site in San Bernardino County, California, operated by Southern California Edison Co. Its batteries store up to 450 MWh.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingAug 2024 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
SEPARBatteries113 MW
450 MWh
OperatingAug 2024

Plant details

Operator
Southern California Edison Co
Location
San Bernardino County, California
Balancing authority
CISO
Sector
Electric Utility
Capacity
Operating: 113 MW
First unit online
Aug 2024
EIA plant ID
65456

Location

34.0921, -117.5340

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