United States · 44.622, -92.633Prairie Island
Prairie Island, nuclear power plant in United States, operates 2 pressurized water reactors with 1,041 MW net installed capacity and has been in service since 1973.
Unit Prairie Island 1 has been operating for 53 years, since 1973. Its 1,041 MW net are enough to supply about 3,280,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 1,041 MWe
- First grid connection
- 1973
- Operator
- Northern States Power
- Owner
- Xcel Energy Inc
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in Minnesota · Vendor: Westinghouse · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| Prairie Island 1 | Pressurized water (PWR) | Westinghouse 2-loop (WH 2LP) | Operating | 522 | 1,677 | Jun 25, 1968 | Dec 4, 1973 | — | Aug 9, 2033 | 62.1 % (2024) |
| Prairie Island 2 | Pressurized water (PWR) | Westinghouse 2-loop (WH 2LP) | Operating | 519 | 1,677 | Jun 25, 1969 | Dec 21, 1974 | — | Oct 29, 2034 | 78.7 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Prairie Island 1, a 522 MWe PWR (Westinghouse 2-loop (WH 2LP)), started construction in 1968, was connected to the grid in 1973 and is still operating, with a 62.2% load factor in 2024.
Prairie Island 2, a 519 MWe PWR (Westinghouse 2-loop (WH 2LP)), started construction in 1969, was connected to the grid in 1974 and is still operating, with a 78.7% load factor in 2024.
Operator: Northern States Power.
Owner: Xcel Energy Inc (Prairie Island 1, Prairie Island 2).