Arkansas Nuclear One
Nuclear power plant · Pope County, Arkansas
Nameplate capacity
1,845 MW
Rank in Arkansas
#2
of 122 plants
In service since
1974
December 1974
Details
- Primary fuel
- Nuclear
- Technology
- Nuclear
- Operator
- Entergy Arkansas LLC
- County
- Pope County
- Generating units
- 2
- Share of state capacity
- 9.65%
- Rank among nuclear plants in Arkansas
- #1 of 1
- EIA plant code
- 8055
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Nuclear | 943 MW | 982 MW | 1980 | Operating |
| 1 | Nuclear | 903 MW | 826 MW | 1974 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Arkansas
| Union Power Station | Natural gas | 2,428 MW |
| Independence Steam Electric Station | Coal | 1,800 MW |
| White Bluff | Coal | 1,800 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,845 MW solar plant and a 1,845 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Arkansas power plants · What Arkansas actually generates