Where is Aera San Ardo Cogen Facility?

In Monterey 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 Aera San Ardo Cogen Facility?

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

Who owns Aera San Ardo Cogen Facility?

EIA-860M names Aera Energy LLC-San Ardo 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 Aera San Ardo Cogen Facility LLC?

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

Is Aera San Ardo Cogen Facility still running?

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

Aera San Ardo Cogen Facility

Aera San Ardo Cogen Facility is a 3 MW natural gas power plant in Monterey County, California, operated by Aera Energy LLC-San Ardo. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 1989.

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: 3.2 MW; 2.8 MW net summer
Generating units: 1
In service: 1989
EIA plant ID: 55184

Where it is

Loading map…

County: Monterey County, California
Coordinates: 35.9533, -120.86
Balancing authority: CISO
Sector: Industrial CHP

Units, technology and status

Operator of record: Aera Energy LLC-San Ardo
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Aera Energy LLC-San Ardo reports to EIA →

Aera San Ardo Cogen Facility: FAQ

Where is Aera San Ardo Cogen Facility?: In Monterey 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 Aera San Ardo Cogen Facility?: 3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Aera San Ardo Cogen Facility?: EIA-860M names Aera Energy LLC-San Ardo 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 Aera San Ardo Cogen Facility LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Aera Energy LLC-San Ardo 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 "Aera San Ardo Cogen Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Aera San Ardo Cogen Facility still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.