Where is Walnut Creek Energy Park?

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 Walnut Creek Energy Park?

500 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.

Who owns Walnut Creek Energy Park?

EIA-860M names Walnut Creek 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 Walnut Creek Energy Park LLC?

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

Is Walnut Creek Energy Park still running?

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

Walnut Creek Energy Park

Walnut Creek Energy Park is a 500 MW natural gas power plant in Los Angeles County, California, operated by Walnut Creek LLC. EIA-860M lists 5 generating units here, inside CAISO. Its units entered service in 2013.

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: 500 MW; 500.5 MW net summer
Generating units: 5
In service: 2013
EIA plant ID: 57515

Where it is

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County: Los Angeles County, California
Coordinates: 34.0087, -117.9449
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Walnut Creek LLC
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Walnut Creek LLC reports to EIA →

Walnut Creek Energy Park: FAQ

Where is Walnut Creek Energy Park?: 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 Walnut Creek Energy Park?: 500 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.
Who owns Walnut Creek Energy Park?: EIA-860M names Walnut Creek 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 Walnut Creek Energy Park LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Walnut Creek 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 "Walnut Creek Energy Park LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Walnut Creek Energy Park still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.