Where is Weymouth Solar Plant?

In Los Angeles 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 Weymouth Solar Plant?

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

Who owns Weymouth Solar Plant?

EIA-860M names Metropolitan Water District of S CA 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 Weymouth Solar Plant LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Metropolitan Water District of S CA 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 "Weymouth Solar Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Weymouth Solar Plant still running?

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

Weymouth Solar Plant

Weymouth Solar Plant is a 3 MW solar farm in Los Angeles County, California, operated by Metropolitan Water District of S CA. EIA-860M lists 2 generating units here, inside CAISO. Its units entered service in 2016.

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: 3 MW; 3 MW net summer
Generating units: 2
In service: 2016
EIA plant ID: 60255

Where it is

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County: Los Angeles County, California
Coordinates: 34.1086, -117.7822
Balancing authority: CISO
Sector: Electric Utility

Units, technology and status

Operator of record: Metropolitan Water District of S CA
Primary energy source: Solar
Technologies: Solar Photovoltaic
Status: Operating

Every plant Metropolitan Water District of S CA reports to EIA →

Weymouth Solar Plant: FAQ

Where is Weymouth Solar Plant?: In Los Angeles 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 Weymouth Solar Plant?: 3 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Weymouth Solar Plant?: EIA-860M names Metropolitan Water District of S CA 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 Weymouth Solar Plant LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Metropolitan Water District of S CA 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 "Weymouth Solar Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Weymouth Solar Plant still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.