Johnson County
Natural gas power plant · Johnson County, Texas
Nameplate capacity
283 MW
Rank in Texas
#190
of 1,071 plants
In service since
1996
September 1996
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Johnson County Power LLC
- County
- Johnson County
- Generating units
- 2
- Share of state capacity
- 0.14%
- Rank among natural gas plants in Texas
- #97 of 310
- EIA plant code
- 54817
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GT-1 | Natural Gas Fired Combined Cycle | 178 MW | 174 MW | 1996 | Operating |
| ST-1 | Natural Gas Fired Combined Cycle | 104 MW | 104 MW | 1996 | 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
| Pattern Gulf Wind | Wind | 283 MW |
| Tanzanite Storage | Battery storage | 283 MW |
| Palo Duro Wind | Wind | 282 MW |
| King Mountain Wind Ranch 1 | Wind | 278 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 283 MW solar plant and a 283 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