In Limestone 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 Limestone?

2 GW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

EIA-860M names NRG Texas Power 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 Limestone LLC?

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

Is Limestone still running?

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

Limestone

Limestone is a 2 GW coal power plant in Limestone County, Texas, operated by NRG Texas Power LLC. EIA-860M lists 2 generating units here, inside ERCOT. Its units entered service between 1985 and 1986.

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: 1,849.8 MW; 1,688 MW net summer
Generating units: 2
In service: 1985–1986
EIA plant ID: 298

Where it is

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County: Limestone County, Texas
Coordinates: 31.4219, -96.2525
Balancing authority: ERCO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: NRG Texas Power LLC
Primary energy source: Coal
Technologies: Conventional Steam Coal
Status: Operating

Every plant NRG Texas Power LLC reports to EIA →

Limestone: FAQ

Where is Limestone?: In Limestone 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 Limestone?: 2 GW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Limestone?: EIA-860M names NRG Texas Power 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 Limestone LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — NRG Texas Power 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 "Limestone LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Limestone still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.