| # | Plant | Region | MW |
|---|---|---|---|
| 1 | CN ALMARAZ 1 | Extremadura | 2,093 |
| 2 | ASCO GR | Catalonia | 2,060 |
| 3 | Lemóniz nuclear power plant | Biscay | 1,860 |
| 4 | CN COFRENTES | Valencia | 1,102 |
| 5 | VANDELLOS GR 2 | Catalonia | 1,087 |
| 6 | Sayago nuclear power plant | Zamora | 1,075 |
| 7 | TRILLO | Castille-La Mancha | 1,066 |
| 8 | Regodola nuclear power plant | Lugo | 1,000 |
| 9 | Santa Maria De Garona nuclear power plant | Burgos | 466 |
| 10 | Jose Cabrera nuclear power plant | Guadalajara | 160 |
WRI Global Power Plant Database (CC BY 4.0).
