Where is Sweeny Cogen Facility?

In Brazoria County, Texas (TX). 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 Sweeny Cogen Facility?

572 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.

Who owns Sweeny Cogen Facility?

EIA-860M names Sweeny Cogeneration 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 Sweeny Cogen Facility LLC?

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

Is Sweeny Cogen Facility still running?

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

Sweeny Cogen Facility

Sweeny Cogen Facility is a 572 MW natural gas power plant in Brazoria County, Texas, operated by Sweeny Cogeneration LLC. EIA-860M lists 4 generating units here, inside ERCOT. Its units entered service between 1997 and 2000.

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: 572 MW; 436 MW net summer
Generating units: 4
In service: 1997–2000
EIA plant ID: 55015

Where it is

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County: Brazoria County, Texas
Coordinates: 29.0728, -95.745
Balancing authority: ERCO
Sector: IPP CHP

Units, technology and status

Operator of record: Sweeny Cogeneration LLC
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combustion Turbine
Status: Operating

Every plant Sweeny Cogeneration LLC reports to EIA →

Sweeny Cogen Facility: FAQ

Where is Sweeny Cogen Facility?: In Brazoria County, Texas (TX). 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 Sweeny Cogen Facility?: 572 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Sweeny Cogen Facility?: EIA-860M names Sweeny Cogeneration 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 Sweeny Cogen Facility LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Sweeny Cogeneration 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 "Sweeny Cogen Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Sweeny Cogen Facility still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.