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

904 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.

EIA-860M names Entergy Louisiana LLC 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 Ouachita LLC?

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

Is Ouachita still running?

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

Ouachita

Ouachita is a 904 MW natural gas power plant in Ouachita County, Louisiana, operated by Entergy Louisiana LLC. EIA-860M lists 6 generating units here, inside MISO. Its units entered service in 2002.

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: 903.9 MW; 719.3 MW net summer
Generating units: 6
In service: 2002
EIA plant ID: 55467

Where it is

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County: Ouachita County, Louisiana
Coordinates: 32.7061, -92.0683
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: Entergy Louisiana LLC
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combined Cycle
Status: Operating

Every plant Entergy Louisiana LLC reports to EIA →

Ouachita: FAQ

Where is Ouachita?: In Ouachita County, Louisiana (LA). 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 Ouachita?: 904 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
Who owns Ouachita?: EIA-860M names Entergy Louisiana LLC 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 Ouachita LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Entergy Louisiana LLC 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 "Ouachita LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Ouachita still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.