Zion
Zion, nuclear power plant in United States, operated 2 pressurized water reactors between 1973 and 1998 and is now shut down.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- —
- First grid connection
- 1973
- Operator
- Exelon Generation
- Owner
- Exelon Generation Co LLC
- Status
- Shut down
See also: alerts for this plant · every plant in United States · Nuclear power plants in Illinois · Vendor: Westinghouse · every PWR reactor · how a PWR works
Operating capacity
0 MWe
net electrical
Units
2
0 operating
First start-up
1973

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Zion 1 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Shut down | 1,040 | 3,250 | Dec 1968 | Jun 1973 | Feb 1998 | — |
| Zion 2 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Shut down | 1,040 | 3,250 | Dec 1968 | Dec 1973 | Feb 1998 | — |
Data: IAEA PRIS · Global Energy Monitor · updated on Aug 1, 2026
Zion 1, a 1,040 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1968 and operated from 1973 to 1998.
Zion 2, a 1,040 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1968 and operated from 1973 to 1998.
Operator: Exelon Generation.
Owner: Exelon Generation Co LLC (Zion 1, Zion 2).