Comanche Peak
Nuclear power plant · Somervell County, Texas
Nameplate capacity
2,430 MW
Rank in Texas
#3
of 1,071 plants
In service since
1990
August 1990
Details
- Primary fuel
- Nuclear
- Technology
- Nuclear
- Operator
- Luminant Generation Company LLC
- County
- Somervell County
- Generating units
- 2
- Share of state capacity
- 1.21%
- Rank among nuclear plants in Texas
- #2 of 2
- EIA plant code
- 6145
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Nuclear | 1,215 MW | 1,205 MW | 1990 | Operating |
| 2 | Nuclear | 1,215 MW | 1,195 MW | 1993 | 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
| W A Parish | Coal | 4,008 MW |
| South Texas Project | Nuclear | 2,709 MW |
| Martin Lake | Coal | 2,380 MW |
| Forney Energy Center | Natural gas | 1,894 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 2,430 MW solar plant and a 2,430 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