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

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

EIA-860M names Entergy Mississippi 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 Attala LLC?

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

Is Attala still running?

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

Attala

Attala is a 551 MW natural gas power plant in Attala County, Mississippi, operated by Entergy Mississippi LLC. EIA-860M lists 3 generating units here, inside MISO. 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; 458.7 MW net summer
Generating units: 3
In service: 2001
EIA plant ID: 55220

Where it is

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County: Attala County, Mississippi
Coordinates: 33.0147, -89.6753
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

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

Every plant Entergy Mississippi LLC reports to EIA →

Attala: FAQ

Where is Attala?: In Attala County, Mississippi (MS). 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 Attala?: 551 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Attala?: EIA-860M names Entergy Mississippi 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 Attala LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Entergy Mississippi 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 "Attala LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Attala still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.