Where is Arlington Energy Center III?

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 Arlington Energy Center III?

241 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Arlington Energy Center III?

EIA-860M names Arlington Energy Center III 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 Arlington Energy Center III LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arlington Energy Center III 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 "Arlington Energy Center III LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Arlington Energy Center III still running?

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

Arlington Energy Center III

Arlington Energy Center III is a 241 MW solar farm in Riverside County, California, operated by Arlington Energy Center III. EIA-860M lists 2 generating units here, inside CAISO. Its units 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: 241 MW; 241 MW net summer
Generating units: 2
In service: 2022
EIA plant ID: 64564

Where it is

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County: Riverside County, California
Coordinates: 33.6909, -114.7749
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Arlington Energy Center III
Primary energy source: Solar
Technologies: Batteries, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Solar 131 MW, Battery 110 MW. It is filed here under Solar, the source with the most capacity.

Every plant Arlington Energy Center III reports to EIA →

Arlington Energy Center III: FAQ

Where is Arlington Energy Center III?: 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 Arlington Energy Center III?: 241 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Arlington Energy Center III?: EIA-860M names Arlington Energy Center III 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 Arlington Energy Center III LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Arlington Energy Center III 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 "Arlington Energy Center III LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Arlington Energy Center III still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.