United States · 35.311, -93.235Arkansas Nuclear One
Arkansas Nuclear One, nuclear power plant in United States, operates 2 pressurized water reactors with 1,824 MW net installed capacity and has been in service since 1974.
Unit Arkansas Nuclear One 1 has been operating for 52 years, since 1974. Its 1,824 MW net are enough to supply about 5,750,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 1,824 MWe
- First grid connection
- 1974
- Operator
- Entergy Nuclear Operations
- Owner
- Entergy Arkansas LLC
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in Arkansas · Vendor: Babcock & Wilcox · Vendor: Combustion Engineering · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| Arkansas Nuclear One 1 | Pressurized water (PWR) | Babcock & Wilcox lowered-loop (B&W LLP) | Operating | 836 | 2,568 | Oct 1, 1968 | Aug 17, 1974 | — | May 20, 2034 | 90.7 % (2024) |
| Arkansas Nuclear One 2 | Pressurized water (PWR) | Combustion Engineering 2-loop (CE 2LP) | Operating | 988 | 3,026 | Dec 6, 1968 | Dec 26, 1978 | — | Jul 17, 2038 | 92.0 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Arkansas Nuclear One 1, an 836 MWe PWR (Babcock & Wilcox lowered-loop (B&W LLP)), started construction in 1968, was connected to the grid in 1974 and is still operating, with a 90.7% load factor in 2024.
Arkansas Nuclear One 2, a 988 MWe PWR (Combustion Engineering 2-loop (CE 2LP)), started construction in 1968, was connected to the grid in 1978 and is still operating, with a 92% load factor in 2024.
Operator: Entergy Nuclear Operations.
Owner: Entergy Arkansas LLC (Arkansas Nuclear One 1, Arkansas Nuclear One 2).