Limestone
Coal power plant in Limestone County, Texas. 1,849.8 MW of nameplate capacity across 2 generators, operated by NRG Texas Power LLC.
Also known as Limestone Electric Generating Station · EIA plant 298
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1,849.8 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 1985First generator online
- Operator
- NRG Texas Power LLCEIA operator ID 54888
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 2 ERCOT nodesResource nodes with prices
- Location
- Limestone County, TX31.4219, −96.2525
- EIA plant ID
- 298EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Limestone produces
Free · EIA-923Net generation, 2025
7.52 TWh
7,523,395 MWh, final
Capacity factor, 2025
46.4%
2024: 33.0%
January to July 2026
3.72 TWh
Provisional
Range, 2015 to 2025
5.4–9.5
TWh a year. Low 2024, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 11,309,765 | Not reported | 12 of 12 |
| 2001 | 9,095,048 | Not reported | 12 of 12 |
| 2002 | 11,385,520 | Not reported | 12 of 12 |
| 2003 | 12,073,866 | Not reported | 12 of 12 |
| 2004 | 13,016,528 | Not reported | 12 of 12 |
| 2005 | 12,759,023 | Not reported | 12 of 12 |
| 2006 | 12,709,535 | Not reported | 12 of 12 |
| 2007 | 13,592,152 | Not reported | 12 of 12 |
| 2008 | 13,896,060 | Not reported | 12 of 12 |
| 2009 | 11,952,333 | Not reported | 12 of 12 |
| 2010 | 12,767,100 | Not reported | 12 of 12 |
| 2011 | 13,484,068 | 82.4% | 12 of 12 |
| 2012 | 11,516,465 | Not reported | 12 of 12 |
| 2013 | 12,872,031 | 79.4% | 12 of 12 |
| 2014 | 8,351,793 | 76.8% | 8 of 12 |
| 2015 | 9,164,672 | Not reported | 12 of 12 |
| 2016 | 9,161,347 | 56.4% | 12 of 12 |
| 2017 | 9,199,366 | 56.8% | 12 of 12 |
| 2018 | 9,548,363 | 58.9% | 12 of 12 |
| 2019 | 8,700,389 | 53.7% | 12 of 12 |
| 2020 | 5,716,279 | 35.2% | 12 of 12 |
| 2021 | 5,702,129 | 35.2% | 12 of 12 |
| 2022 | 7,256,258 | 44.8% | 12 of 12 |
| 2023 | 6,059,246 | 37.4% | 12 of 12 |
| 2024 | 5,364,872 | 33.0% | 12 of 12 |
| 2025 | 7,523,395 | 46.4% | 12 of 12 |
| 2026 (provisional, partial year) | 3,718,798 | 39.5% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ERCOTEmissions
Free · EPA CAMPDCO₂, 2025
9.08M
US short tons. 2024: 6.20M
SO₂, 2025
17,272
US short tons
NOx, 2025
8,710
US short tons
CO₂ per MWh, calculated
1.21 t
About 2,413 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (LIM1, LIM2), matched to EIA plant 298 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
2,970
million gallons
Consumption, 2024
2,970
million gallons
Source
Lake Limestone
Surface, Fresh. Induced-draft tower
Watershed stress
High · 0.718
USGS SUI, HUC12 Lambs Creek
24 of 24 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Steam Coal | 893.0 | December 1985 |
| 2 | Conventional Steam Coal | 956.8 | December 1986 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists NRG Texas Power LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Limestone and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Limestone
More plants operated by NRG Texas Power LLC
Questions about Limestone
How much power does Limestone produce?
Limestone reported 7,523,395 MWh (7.52 TWh) of net generation in 2025, a 46.4% capacity factor on 1,849.8 MW of nameplate capacity. From January to July 2026 it reported 3.72 TWh, which is provisional.
Where is Limestone?
Limestone is in Limestone County, Texas, at 31.4219, −96.2525. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Limestone?
EIA-860M for August 2026 lists NRG Texas Power LLC as the operator (EIA operator ID 54888). The operator is not always the owner.
When did Limestone start operating?
Its first generator began operating in December 1985, according to EIA-860M.
Does InfraMap have power prices for Limestone?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 2 price nodes linked to Limestone, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page