LIMESTONE

Operating

Coal power plant

Capacity: 1,850 MW
Primary fuel: Coal
County: Limestone County
Operator: NRG TEXAS POWER LLC
Status: Operating
Commissioned: 1985
EIA plant ID: 298
Generators: 2
Technology: Conventional Steam Coal
Net generation (2024): 5,365 GWh
Capacity factor (2024, EIA nameplate): 33%
Data vintage: EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates: 31.4234, -96.2517

LIMESTONE, a 1,850 MW Coal power plant in Limestone County, Texas. Operated by NRG TEXAS POWER LLC, commissioned 1985.

How LIMESTONE compares

With 1,850 MW of capacity, LIMESTONE ranks 7th among the 307 operating power plants Bywatts maps in Texas and 3rd of the 12 operating Coal plants in the state. It accounts for about 10% of Texas's operating Coal capacity and 1.8% of all operating capacity in the state. Nationally it is the 42nd-largest of the 324 operating Coal plants in the database. Commissioned in 1985, it is older than 72% of the 303 operating Texas plants with a recorded commissioning year. Its operator, NRG TEXAS POWER LLC, runs 6 operating plants in Texas totaling 9,170 MW.

EIA-860 lists 2 generators at the site with 1,850 MW of nameplate capacity, all conventional steam coal technology. Net generation was 5,365 GWh in 2024 (a 33% capacity factor), down 26% from 2022. Its generators came online between 1985 and 1986.

Grid neighborhood

The closest transmission line found within 10 miles is a 138 kV line owned by ONCOR ELECTRIC DELIVERY CO., under 0.1 miles away. One other operating power plant sits within 25 miles: OAK GROVE (1,795 MW, Coal).

Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology

Weather peril exposure

LIMESTONE is a 1,850 MW coal power plant in Limestone County, TX, operated by NRG TEXAS POWER LLC, commissioned in 1985. Limestone County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.2 of 5 at the 55th national percentile. Heat wave is the leading peril, rated Relatively Low by FEMA at the 75th percentile.

The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.

3.2 of 5Modeled catastrophe exposure

ElevatedExposure band

Heat waveLeading peril

Relatively LowFEMA county risk rating

Limestone County hazard ratings

Peril	FEMA rating	National percentile	Peril score	Events per year
Heat wave	Relatively Low	75th	4.0 of 5	15.7
Hurricane	Relatively Low	71st	3.8 of 5	0.04
Hail	Relatively Low	64th	3.5 of 5	3.8
Wildfire	Relatively Low	61st	3.5 of 5	<0.01
Ice storm	Relatively Moderate	58th	3.3 of 5	0.94
Winter weather	Relatively Low	55th	3.2 of 5	2.8
Lightning	Relatively Moderate	40th	2.6 of 5	54.4
Strong wind	Relatively Low	40th	2.6 of 5	2.0
Tornado	Relatively Low	32nd	2.3 of 5	0.56
Riverine flooding	Relatively Low	22nd	1.9 of 5	2.0
Earthquake	Very Low	20th	1.8 of 5	<0.01

Perils not assessed in Limestone County

These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.

Peril	Why it is not scored
Coastal flooding	FEMA rating is "Not Applicable" for this county

Model hail, wind and flood exposure for Limestone County in the weather risk calculator

Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.

Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.