Where is Stillwater Energy Center?

In Payne County, Oklahoma (OK). 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 Stillwater Energy Center?

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

Who owns Stillwater Energy Center?

EIA-860M names Stillwater Utilities Authority 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 Stillwater Energy Center LLC?

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

Is Stillwater Energy Center still running?

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

Stillwater Energy Center

Stillwater Energy Center is a 56 MW natural gas power plant in Payne County, Oklahoma, operated by Stillwater Utilities Authority. EIA-860M lists 3 generating units here, inside SPP. 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: 56.4 MW; 55.8 MW net summer
Generating units: 3
In service: 2016
EIA plant ID: 59647

Where it is

Loading map…

County: Payne County, Oklahoma
Coordinates: 36.1619, -97.0369
Balancing authority: SWPP
Sector: Electric Utility

Units, technology and status

Operator of record: Stillwater Utilities Authority
Primary energy source: Natural gas
Technologies: Natural Gas Internal Combustion Engine
Status: Operating

Every plant Stillwater Utilities Authority reports to EIA →

Stillwater Energy Center: FAQ

Where is Stillwater Energy Center?: In Payne County, Oklahoma (OK). 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 Stillwater Energy Center?: 56 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Stillwater Energy Center?: EIA-860M names Stillwater Utilities Authority 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 Stillwater Energy Center LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Stillwater Utilities Authority 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 "Stillwater Energy Center LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Stillwater Energy Center still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.