Tenaska Gateway Generating Station
Rusk County, Texas · EIA plant ID 55132 · Operator: Tenaska Gateway Partners Ltd
Nameplate940MWSummer 826 MW
Generators4in service
Net generation4,341GWh12 mo to Aug 2026
Capacity factor60%gas/coal/oil units, summer MW
Heat rate7,320Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 1,509.8 | — | — |
| 2002 | 4,426.1 | — | — |
| 2003 | 4,333.9 | 57.5% | 7,233 |
| 2004 | 3,823 | 50.6% | 7,406 |
| 2005 | 3,999.3 | 53.2% | 7,655 |
| 2006 | 4,139.4 | 54.8% | 7,366 |
| 2007 | 3,899.3 | 51.6% | 7,374 |
| 2008 | 3,210.1 | 42.4% | 7,515 |
| 2009 | 2,503.8 | 33.8% | 7,466 |
| 2010 | 3,098.8 | 41.9% | 7,394 |
| 2011 | 3,256.4 | 44.0% | 7,369 |
| 2012 | 4,128.1 | 55.8% | 7,325 |
| 2013 | 4,295.9 | 58.0% | 7,358 |
| 2014 | 3,472.8 | 46.9% | 7,378 |
| 2015 | 4,030.2 | 54.5% | 7,316 |
| 2016 | 3,771.3 | 50.8% | 7,381 |
| 2017 | 2,530.6 | 34.3% | 7,423 |
| 2018 | 2,905.4 | 39.3% | 7,618 |
| 2019 | 3,903.8 | 52.7% | 7,357 |
| 2020 | 4,095.6 | 55.2% | 7,389 |
| 2021 | 3,267.1 | 44.1% | 7,414 |
| 2022 | 3,950.4 | 53.4% | 7,427 |
| 2023 | 3,089.9 | 41.7% | 7,673 |
| 2024 | 1,512.9 | 20.8% | 8,940 |
| 2025 | 4,708.8 | 65.1% | 7,301 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusListed in EIA-860, no liquid burn in 36 months
Liquid fuel burned · 36 mo0 MMBtu
Last month with liquid burn—
Switch while operatingYes
Net summer MW on gas435
Net summer MW on oil420
Time gas → oilup to 6 h (EIA 6H)
Time oil → gasup to 6 h (EIA 6H)
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GTG1 | Natural Gas Fired Combined Cycle | CT | 183.2 | 157 | Jul 2001 | Operating | — | coming soon |
| GTG2 | Natural Gas Fired Combined Cycle | CT | 183.2 | 150 | Jul 2001 | Operating | — | coming soon |
| GTG3 | Natural Gas Fired Combined Cycle | CT | 183.2 | 138 | Jul 2001 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 390 | 381 | Jul 2001 | Operating | — | coming soon |
Owner / operator
Operator: Tenaska Gateway Partners Ltd. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Tenaska Rusk Partners, LP | 59.4% | 558 MW |
| Tenaska Gateway Investments, LLC | 39.6% | 372 MW |
| Tenaska VII Partners, LP | 0.8% | 7 MW |
| TC Gateway GP, LLC | 0.2% | 2 MW |
| Tyr Gateway GP, LLC | 0.0% | 0 MW |
Nearby plants
Within 80 km.
| Oak Hill - Dry Creek | 200 MW | 24.2 km |
| Martin Lake | 2,380 MW | 27.4 km |
| Nacogdoches Power | 114 MW | 33.6 km |
| Stryker Creek | 713 MW | 36 km |
| Knox Lee | 351 MW | 39.9 km |
| Harrison County Power Project | 570 MW | 45.4 km |