Catawba
Nuclear power plant · York County, South Carolina
Details
- Primary fuel
- Nuclear
- Technology
- Nuclear
- Operator
- Duke Energy Carolinas, LLC
- County
- York County
- Generating units
- 2
- Share of state capacity
- 8.85%
- Rank among nuclear plants in South Carolina
- #2 of 4
- EIA plant code
- 6036
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Nuclear | 1,205 MW | 1,160 MW | 1985 | Operating |
| 2 | Nuclear | 1,205 MW | 1,150 MW | 1986 | 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 South Carolina
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 2,410 MW solar plant and a 2,410 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 South Carolina power plants · What South Carolina actually generates