United States · 35.212, -120.856Diablo Canyon
Diablo Canyon, nuclear power plant in United States, operates 2 pressurized water reactors with 2,256 MW net installed capacity and has been in service since 1985.
Unit Diablo Canyon 1 has been operating for 41 years, since 1985. Its 2,256 MW net are enough to supply about 7,110,000 households.
- Country
- United States
- Units
- 2
- Technology
- PWR
- Net capacity
- 2,256 MWe
- First grid connection
- 1985
- Operator
- Pacific Gas and Electric
- Owner
- Pacific Gas and Electric Co
- Status
- Operating
See also: alerts for this plant · every plant in United States · Nuclear power plants in California · 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Diablo Canyon 1 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,138 | 3,411 | Apr 23, 1968 | Nov 11, 1984 | — | Nov 2, 2024 · in force, renewal pending | 82.3 % (2023) |
| Diablo Canyon 2 | Pressurized water (PWR) | Westinghouse 4-loop (WH 4LP) | Operating | 1,118 | 3,411 | Dec 9, 1970 | Oct 20, 1985 | — | Aug 26, 2025 · in force, renewal pending | 87.5 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Diablo Canyon 1, a 1,138 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1968, was connected to the grid in 1984 and is still operating, with a 82.3% load factor in 2023.
Diablo Canyon 2, a 1,118 MWe PWR (Westinghouse 4-loop (WH 4LP)), started construction in 1970, was connected to the grid in 1985 and is still operating, with a 87.5% load factor in 2024.
Operator: Pacific Gas and Electric.
Owner: Pacific Gas and Electric Co (Diablo Canyon 1, Diablo Canyon 2).