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United States › Power plants › Battery storage › California

BATTERY STORAGE · SOLAR FARMS

SE Athos II, LLC

SE Athos II, LLC is a 602 MW operating power plant in Riverside County, California, operated by SE Athos II, LLC.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingDec 2021 (current stage)
  5. Closed (not yet reached)

This plant has generators at more than one stage; see the table below.

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
IPAT2Solar Photovoltaic200 MW OperatingDec 2021
ATHB2Batteries200 MW Under construction (up to 50%)Target Jan 2027
ATH1SBatteries102 MW Under construction (up to 50%)Target Jan 2027
ATH1NBatteries100 MW Under construction (up to 50%)Target Jan 2027
SEAT2Solar Photovoltaic200 MW Cancelled or postponed

Plant details

Operator
SE Athos II, LLC
Location
Riverside County, California
Balancing authority
CISO
Sector
IPP Non-CHP
Capacity
Operating: 200 MW
Under construction: 402 MW
Cancelled: 200 MW
First unit online
Dec 2021
EIA plant ID
64290

Location

33.7513, -115.3550

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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