Ascó
Ascó, nuclear power plant in Spain, operates 2 pressurized water reactors with 1,992 MW net installed capacity and has been in service since 1984.
Unit Ascó 1 has been operating for 42 years, since 1984. Its 1,992 MW net are enough to supply about 6,270,000 households.
- Country
- Spain
- Units
- 2
- Technology
- PWR
- Net capacity
- 1,992 MWe
- First grid connection
- 1984
- Operator
- Asociación Nuclear Ascó-Vandellós AIE
- Owner
- Endesa SA · Endesa; Iberdrola
- Status
- Operating
See also: alerts for this plant · every plant in Spain · Vendor: Westinghouse · every PWR reactor · how a PWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Ascó 1 | Pressurized water (PWR) | Westinghouse 3-loop (WH 3LP) | Operating | 995 | 2,941 | May 16, 1974 | Aug 13, 1983 | — | 79.4 % (2024) |
| Ascó 2 | Pressurized water (PWR) | Westinghouse 3-loop (WH 3LP) | Operating | 997 | 2,941 | Mar 7, 1975 | Oct 23, 1985 | — | 84.2 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Ascó 1, a 995 MWe PWR (Westinghouse 3-loop (WH 3LP)), started construction in 1974, was connected to the grid in 1983 and is still operating, with a 79.4% load factor in 2024.
Ascó 2, a 997 MWe PWR (Westinghouse 3-loop (WH 3LP)), started construction in 1975, was connected to the grid in 1985 and is still operating, with a 84.2% load factor in 2024.
Operator: Asociación Nuclear Ascó-Vandellós AIE.
Owner: Endesa SA (Ascó 1) · Endesa; Iberdrola (Ascó 2).