Rancho Seco
Rancho Seco, nuclear power plant in United States, operated one pressurized water reactor between 1975 and 1989 and is now shut down.
- Country
- United States
- Units
- 1
- Technology
- PWR
- Net capacity
- —
- First grid connection
- 1975
- Operator
- Sacramento Municipal Utility District
- Owner
- Sacramento Municipal Utility District
- Status
- Shut down
See also: alerts for this plant · every plant in United States · Nuclear power plants in California · Vendor: Babcock & Wilcox · every PWR reactor · how a PWR works
Operating capacity
0 MWe
net electrical
Units
1
0 operating
First start-up
1975

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Rancho Seco 1 | Pressurized water (PWR) | WH (DRY) | Shut down | 873 | 2,772 | Apr 1969 | Oct 1974 | Jun 1989 | — |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Rancho Seco 1, an 873 MWe PWR (WH (DRY)), started construction in 1969 and operated from 1974 to 1989.
Operator: Sacramento Municipal Utility District.