McClain Energy Facility

McClain Energy Facility is a 551 MW natural gas power plant in McClain County, Oklahoma, operated by Oklahoma Gas & Electric Co. EIA-860M lists 3 generating units here, inside SPP. 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
551.3 MW
487 MW net summer
Generating units
3
In service
2001
EIA plant ID
55457

Where it is

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County
McClain County, Oklahoma
Coordinates
35.2977, -97.5898
Balancing authority
SWPP
Sector
Electric Utility

Units, technology and status

Operator of record
Oklahoma Gas & Electric Co
Primary energy source
Natural gas
Technologies
Natural Gas Fired Combined Cycle
Status
Operating

Every plant Oklahoma Gas & Electric Co reports to EIA →

McClain Energy Facility: FAQ

Where is McClain Energy Facility?
In McClain 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 McClain Energy Facility?
551 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns McClain Energy Facility?
EIA-860M names Oklahoma Gas & Electric Co 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 McClain Energy Facility LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Oklahoma Gas & Electric Co 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 "McClain 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 McClain Energy Facility still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.