Arkansas Nuclear One
Arkansas Nuclear One is a nuclear plant in Pope County, Arkansas, operated by Entergy Arkansas LLC. It ranks second by nameplate capacity among Arkansas’s 120 power plants. Its biggest unit, rated at 942 MW, is the largest single generator in Arkansas.
Nameplate capacity, 2025
1,845 MW
1,807 MW net summer capacity
2 operable units
- Nuclear1,845 MW100%
Unit by unit, 1974 to 2025
operating in 2025bar height follows unit size
Unit 1 Nuclear, 902 MW, 1974
Unit 2 Nuclear, 942 MW, 1980
Among Arkansas’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Union Power Station2,428 MW
- 2Arkansas Nuclear Onethis plant
- 3Independence Steam Electric Station1,800 MW
- 4White Bluff1,800 MW
Other rankings
- All US power plants
- 90th of 14,286
- US nuclear plants
- 31st of 56
- Plants in the MISO (Midcontinent) balancing area
- 9th of 2,383
- Plants run by Entergy Arkansas LLC
- 2nd of 11
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Nuclear | 902 MW | 826 MW | 1974 | Operating |
| 2 | Nuclear | 942 MW | 982 MW | 1980 | Operating |
Grid and site
- Balancing area
- MISO (Midcontinent)
- Reliability region
- SERC Reliability Corporation
- Highest grid connection voltage
- 500 kV
- Water source
- Lake Dardenelle
- Nearest town on record
- Russellville
- Operator type
- Utility
- Coordinates
- 35.311°N, 93.235°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Dardanelle | Hydroelectric | 161 MW | 5.6 mi southeast |
| Scenic Hill Solar IV, LLC | Solar | 2.2 MW | 16.2 mi northwest |
| Scenic Hill Solar III | Solar | 5 MW | 19.1 mi northwest |
| City of Clarksville | Solar | 10 MW | 19.1 mi northwest |
| Whillock | Hydroelectric | 32.4 MW | 28.1 mi southeast |
| City of Paris Solar | Solar | 1.5 MW | 28.1 mi west |
| Thomas Fitzhugh | Natural gas | 185 MW | 33.8 mi west |
| Ozark | Hydroelectric | 100 MW | 34.6 mi west |