Tenaska Gateway Generating Station
Natural gas power plant · Rusk County, Texas
Nameplate capacity
940 MW
Rank in Texas
#37
of 1,071 plants
In service since
2001
July 2001
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Tenaska Gateway Partners Ltd
- County
- Rusk County
- Generating units
- 4
- Share of state capacity
- 0.47%
- Rank among natural gas plants in Texas
- #25 of 310
- EIA plant code
- 55132
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| STG1 | Natural Gas Fired Combined Cycle | 390 MW | 381 MW | 2001 | Operating |
| GTG1 | Natural Gas Fired Combined Cycle | 183 MW | 157 MW | 2001 | Operating |
| GTG2 | Natural Gas Fired Combined Cycle | 183 MW | 150 MW | 2001 | Operating |
| GTG3 | Natural Gas Fired Combined Cycle | 183 MW | 138 MW | 2001 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Texas
| Hays Energy Project | Natural gas | 989 MW |
| Tenaska Frontier Generation Station | Natural gas | 940 MW |
| Formosa Utility Venture Ltd | Natural gas | 933 MW |
| Baytown Energy Center | Natural gas | 933 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 940 MW solar plant and a 940 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Texas power plants · What Texas actually generates