South Carolina
Nuclear accounted for 52% of generation in South Carolina over the 12 months to July 2026.
Nuclear52%Natural gas23%Coal17%Solar4%Other (<2.5% each)3%
| Fuel | GWh | Share | YoY |
|---|---|---|---|
| Nuclear | 53,720 | 52.4% | ↓ 0.9 |
| Natural gas | 23,903 | 23.3% | ↑ 1.4 |
| Coal | 17,693 | 17.3% | ↓ 0.7 |
| Solar | 4,406 | 4.3% | ↑ 0.6 |
| Hydro | 2,166 | 2.1% | ↓ 0.2 |
| Other | 622 | 0.6% | ↓ 0.2 |
What’s standing
The 8 largest of 398 operating generators; 27.3 GW total capacity.
- CatawbaNuclear · Duke Energy Carolinas, LLC1.2 GW1985
- CatawbaNuclear · Duke Energy Carolinas, LLC1.2 GW1986
- V C SummerNuclear · Dominion Energy South Carolina, Inc1.0 GW1984
- OconeeNuclear · Duke Energy Carolinas, LLC0.9 GW1974
- OconeeNuclear · Duke Energy Carolinas, LLC0.9 GW1974
- OconeeNuclear · Duke Energy Carolinas, LLC0.9 GW1973
- H B RobinsonNuclear · Duke Energy Progress - (NC)0.8 GW1971
- WilliamsCoal · South Carolina Genertg Co, Inc0.7 GW1973
On the drawing board
South Carolina has 27.3 GW standing. Another 204 MW is on the board by 2026: 204 MW testing.
Built since July 2026
- Pruger Solar IIStanding2 MW2026
- B & K SolarTesting75 MW2026
- SR GeorgetownTesting50 MW2026
- Kingstree West 115Testing75 MW2026
Battery storage
- Longtown Energy StorageTesting5 MW2026
South Carolina's announced projects could add 3.7 TWh a year by 2031. Our projection includes 3.1 TWh after applying completion factors based on project status.
South Carolina in the news
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