2nd largest plant in Mississippi · 165th nationally
Grand Gulf is a nuclear power plant in Mississippi with a nameplate capacity of 1,440 MW. It generates roughly 11.7M MWh per year — enough to power about 1,119,011 average U.S. homes.
Its capacity factor of 93% means it runs nearly around-the-clock as baseload generation.
| Plant Name | Grand Gulf |
|---|---|
| Operator | System Energy Resources, Inc |
| City | Port Gibson |
| County | Claiborne County |
| State | Mississippi |
| ZIP | 39150 |
| Coordinates | 32.00810, -91.04780 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Nuclear | Uranium | 1,440 MW | Operating | 1985 |
| Owner | Location | Share |
|---|---|---|
| System Energy Resources, Inc | Jackson, MS | 9000.0% |
| Cooperative Energy | Hattiesburg, MS | 1000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| NERC Region | SERC |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
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.