1st largest plant in South Carolina · 22nd nationally
Oconee is a nuclear power plant in South Carolina with a nameplate capacity of 2,667 MW. It generates roughly 22.2M MWh per year — enough to power about 2,118,736 average U.S. homes.
Its capacity factor of 95% means it runs nearly around-the-clock as baseload generation.
| Plant Name | Oconee |
|---|---|
| Operator | Duke Energy Carolinas, Llc |
| City | Seneca |
| County | Oconee County |
| State | South Carolina |
| ZIP | 29672 |
| Coordinates | 34.79390, -82.89860 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 3 | Nuclear | Uranium | 893 MW | Operating | 1974 |
| 1 | Nuclear | Uranium | 887 MW | Operating | 1973 |
| 2 | Nuclear | Uranium | 887 MW | Operating | 1974 |
| NERC Region | SERC |
|---|---|
| Balancing Authority | Duke Energy Carolinas |
Nuclear plants generate carbon-free baseload electricity by fissioning uranium fuel inside a reactor. They run nearly around-the-clock — typical capacity factors above 90% — and a single facility can power millions of homes. Spent fuel is stored on-site in dry casks. NRC oversees safety; emergency planning zones extend 10 miles from the reactor.