Where is Larkspur Energy Facility?

In San Diego 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 Larkspur Energy Facility?

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

Who owns Larkspur Energy Facility?

EIA-860M names Diamond Generating Corporation 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 Larkspur Energy Facility LLC?

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

Is Larkspur Energy Facility still running?

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

Larkspur Energy Facility

Larkspur Energy Facility is a 100 MW natural gas power plant in San Diego County, California, operated by Diamond Generating Corporation. EIA-860M lists 2 generating units here, inside CAISO. Its units entered service in 2001.

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: 99.8 MW; 91.6 MW net summer
Generating units: 2
In service: 2001
EIA plant ID: 55542

Where it is

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County: San Diego County, California
Coordinates: 32.567, -116.9442
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Diamond Generating Corporation
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Diamond Generating Corporation reports to EIA →

Larkspur Energy Facility: FAQ

Where is Larkspur Energy Facility?: In San Diego 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 Larkspur Energy Facility?: 100 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Larkspur Energy Facility?: EIA-860M names Diamond Generating Corporation 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 Larkspur Energy Facility LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Diamond Generating Corporation 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 "Larkspur Energy Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Larkspur Energy Facility still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.