Sam Rayburn
Natural gas power plant in Victoria County, Texas. 192.8 MW of nameplate capacity across 6 generators, operated by South Texas Electric Coop, Inc.
Also known as Sam Rayburn Power Plant · EIA plant 3631
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 192.8 MWNatural gas 189.6 · Oil 3.2
- Generators
- 6 operatingEIA-860M, August 2026
- Operating since
- July 1991First generator online
- Operator
- South Texas Electric Coop, IncEIA operator ID 17583
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Victoria County, TX28.8947, −97.1350
- EIA plant ID
- 3631EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Sam Rayburn produces
Free · EIA-923Net generation, 2025
162 GWh
162,374 MWh, final
Capacity factor, 2025
9.6%
2024: 11.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
98.6–384.0
GWh a year. Low 2020, high 2022
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 27,353 | Not reported | 12 of 12 |
| 2002 | 45,961 | Not reported | 12 of 12 |
| 2003 | 151,825 | Not reported | 12 of 12 |
| 2004 | 399,911 | Not reported | 12 of 12 |
| 2005 | 505,947 | Not reported | 12 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | 625,592 | Not reported | 12 of 12 |
| 2008 | 529,408 | Not reported | 11 of 12 |
| 2009 | 344,003 | Not reported | 12 of 12 |
| 2010 | 257,298 | 12.2% | 12 of 12 |
| 2011 | 333,018 | 15.8% | 12 of 12 |
| 2012 | 233,301 | 11.1% | 12 of 12 |
| 2013 | 286,036 | Not reported | 12 of 12 |
| 2014 | 188,609 | 14.9% | 8 of 12 |
| 2015 | 241,412 | 12.8% | 12 of 12 |
| 2016 | 117,517 | 6.2% | 12 of 12 |
| 2017 | 137,771 | 7.3% | 12 of 12 |
| 2018 | 223,591 | 11.9% | 12 of 12 |
| 2019 | 229,143 | 12.2% | 12 of 12 |
| 2020 | 98,643 | 5.2% | 12 of 12 |
| 2021 | 34,425 | Not reported | 2 of 12 |
| 2022 | 384,035 | 22.7% | 12 of 12 |
| 2023 | 314,249 | 18.6% | 12 of 12 |
| 2024 | 194,022 | 11.5% | 12 of 12 |
| 2025 | 162,374 | 9.6% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
87,187
US short tons. 2024: 104,022
SO₂, 2025
0
US short tons
NOx, 2025
16
US short tons
CO₂ per MWh, calculated
0.54 t
About 1,074 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (CT7, CT8, CT9), matched to EIA plant 3631 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, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 4 | Petroleum Liquids | 1.6 | July 1991 |
| 5 | Petroleum Liquids | 1.6 | October 1991 |
| 7 | Natural Gas Fired Combined Cycle | 49.2 | October 2003 |
| 8 | Natural Gas Fired Combined Cycle | 49.2 | October 2003 |
| 9 | Natural Gas Fired Combined Cycle | 49.2 | October 2003 |
| 10 | Natural Gas Fired Combined Cycle | 42.0 | October 2003 |
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 South Texas Electric Coop, Inc 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 Sam Rayburn and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Sam Rayburn
More plants operated by South Texas Electric Coop, Inc
Questions about Sam Rayburn
How much power does Sam Rayburn produce?
Sam Rayburn reported 162,374 MWh (162 GWh) of net generation in 2025, a 9.6% capacity factor on 192.8 MW of nameplate capacity.
Where is Sam Rayburn?
Sam Rayburn is in Victoria County, Texas, at 28.8947, −97.1350. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Sam Rayburn?
EIA-860M for August 2026 lists South Texas Electric Coop, Inc as the operator (EIA operator ID 17583). The operator is not always the owner.
When did Sam Rayburn start operating?
Its first generator began operating in July 1991, according to EIA-860M.
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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page