Grand Gulf
Grand Gulf is a nuclear plant in Claiborne County, Mississippi, operated by System Energy Resources, Inc. It ranks second by nameplate capacity among Mississippi’s 63 power plants. Its biggest unit, rated at 1,440 MW, is the largest single generator in Mississippi.
Nameplate capacity, 2025
1,440 MW
1,397 MW net summer capacity
1 operable unit
- Nuclear1,440 MW100%
Unit by unit, 1985 to 2025
operating in 2025bar height follows unit size
Unit 1 Nuclear, 1,440 MW, 1985
Among Mississippi’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Victor J Daniel Jr2,229 MW
- 2Grand Gulfthis plant
- 3Magnolia Power Plant1,004 MW
- 4Jack Watson919 MW
Other rankings
- All US power plants
- 152nd of 14,286
- US nuclear plants
- 34th of 56
- Plants in the MISO (Midcontinent) balancing area
- 19th of 2,383
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Nuclear | 1,440 MW | 1,397 MW | 1985 | Operating |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| System Energy Resources, Inc | 90.0% |
| Cooperative Energy | 10.0% |
Grid and site
- Balancing area
- MISO (Midcontinent)
- Reliability region
- SERC Reliability Corporation
- Highest grid connection voltage
- 500 kV
- Water source
- Mississippi River Aquifer
- Nearest town on record
- Port Gibson
- Operator type
- Utility
- Coordinates
- 32.008°N, 91.048°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| ERDC | Natural gas | 3.2 MW | 23.6 mi northeast |
| Ergon Refining Vicksburg | Natural gas | 4.8 MW | 27.5 mi north |
| International Paper Vicksburg Mill | Biomass and waste | 50.5 MW | 39.4 mi northeast |
| Hinds Energy Facility | Natural gas | 600 MW | 54.8 mi northeast |
| Lineage MS | Solar | 1.2 MW | 54.9 mi east |
| Mississippi Baptist Medical Center | Natural gas | 4.2 MW | 55.0 mi northeast |
| Oak Ridge Solar | Solar | 200 MW | 58.4 mi northwest |
| Georgia-Pacific Monticello Paper | Biomass and waste | 81.5 MW | 62.5 mi southeast |