Power plants operated by South Carolina Public Service Authority
South Carolina Public Service Authority operates 12 power plants in the 2025 EIA-860 data, with 5,282 MW of nameplate capacity, the 49th-largest fleet among the 5,826 operators on file. All of them are in South Carolina. Coal is 71% of the capacity; the largest site is Cross. Its oldest working unit dates from 1942, at Jefferies.
- Coal3,727 MW71%
- Natural gas1,154 MW22%
- Oil and petroleum229 MW4.3%
- Hydroelectric147 MW2.8%
- Biomass and waste23.3 MW0.4%
Capacity by decade it came online
CoalNatural gasOil and petroleumHydroelectricBiomass and waste
Above the line: capacity operating in 2025. Below: capacity retired at these plants.
Plants
| Plant | State | Runs on | Capacity | First unit |
|---|---|---|---|---|
| Cross | South Carolina | Coal | 2,452 MW | 1984 |
| Winyah | South Carolina | Coal | 1,276 MW | 1975 |
| John S Rainey | South Carolina | Natural gas | 1,154 MW | 2001 |
| Jefferies | South Carolina | Hydroelectric | 145 MW | 1942 |
| Hilton Head | South Carolina | Oil and petroleum | 118 MW | 1973 |
| Myrtle Beach | South Carolina | Oil and petroleum | 112 MW | 1962 |
| Richland County Landfill | South Carolina | Biomass and waste | 8.9 MW | 2006 |
| Lee County Landfill | South Carolina | Biomass and waste | 5.7 MW | 2005 |
| Horry Land Fill Gas Site | South Carolina | Biomass and waste | 4.2 MW | 2001 |
| Berkeley County Landfill | South Carolina | Biomass and waste | 3.2 MW | 2011 |
| Spillway | South Carolina | Hydroelectric | 2 MW | 1950 |
| Georgetown LFGTE | South Carolina | Biomass and waste | 1.3 MW | 2010 |