In Alamosa County, Colorado (CO). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

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

EIA-860M names Public Service Co of Colorado 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 Alamosa LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Public Service Co of Colorado 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 "Alamosa LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Alamosa still running?

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

Alamosa

Alamosa is a 53 MW natural gas power plant in Alamosa County, Colorado, operated by Public Service Co of Colorado. EIA-860M lists 2 generating units here. Its units entered service between 1973 and 1977.

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: 53.2 MW; 27 MW net summer
Generating units: 2
In service: 1973–1977
EIA plant ID: 464

Where it is

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County: Alamosa County, Colorado
Coordinates: 37.4594, -105.8947
Balancing authority: PSCO
Sector: Electric Utility

Units, technology and status

Operator of record: Public Service Co of Colorado
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Public Service Co of Colorado reports to EIA →

Alamosa: FAQ

Where is Alamosa?: In Alamosa County, Colorado (CO). 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 Alamosa?: 53 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Alamosa?: EIA-860M names Public Service Co of Colorado 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 Alamosa LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Public Service Co of Colorado 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 "Alamosa LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Alamosa still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.