Where is Athos Solar Project?

In Riverside County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Athos Solar Project?

250 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

Who owns Athos Solar Project?

EIA-860M names SE Athos I, LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Athos Solar Project LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — SE Athos I, LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Athos Solar Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Athos Solar Project still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Athos Solar Project

Athos Solar Project is a 250 MW solar farm in Riverside County, California, operated by SE Athos I, LLC. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 2022.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 250 MW; 250 MW net summer
Generating units: 1
In service: 2022
EIA plant ID: 63300

Where it is

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County: Riverside County, California
Coordinates: 33.7513, -115.355
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: SE Athos I, LLC
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant SE Athos I, LLC reports to EIA →

Athos Solar Project: FAQ

Where is Athos Solar Project?: In Riverside County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Athos Solar Project?: 250 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Athos Solar Project?: EIA-860M names SE Athos I, LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Athos Solar Project LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — SE Athos I, LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Athos Solar Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Athos Solar Project still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.