Winyah
Coal power plant · Georgetown County, South Carolina
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- South Carolina Public Service Authority
- County
- Georgetown County
- Generating units
- 4
- Share of state capacity
- 4.69%
- Rank among coal plants in South Carolina
- #2 of 4
- EIA plant code
- 6249
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 331 MW | 275 MW | 1975 | Operating |
| 2 | Conventional Steam Coal | 315 MW | 285 MW | 1977 | Operating |
| 3 | Conventional Steam Coal | 315 MW | 285 MW | 1980 | Operating |
| 4 | Conventional Steam Coal | 315 MW | 285 MW | 1981 | 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
| Catawba | Nuclear | 2,410 MW |
| Bad Creek | Hydro | 1,680 MW |
| John S Rainey | Natural gas | 1,154 MW |
| Jasper | Natural gas | 1,068 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 1,276 MW solar plant and a 1,276 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