🇬🇧 United Kingdom · 52.212, 1.619
Sizewell
3 reactors PWR · GCR, in service since 1966. Today it delivers 1,198 MWe net, enough for about 3,773,700 households.
Operating capacity
1,198 MWe
net electrical
Units
3
1 operating
First start-up
1966
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Sizewell B | Pressurized water (PWR) | SNUPPS | Operating | 1,198 | 3,425 | Jul 18, 1988 | Feb 14, 1995 | — | 84.5 % (2024) |
| Sizewell A1 | Gas-cooled (GCR / AGR) | — | Shut down | 210 | 1,010 | Apr 1961 | Jan 1966 | Dec 2006 | — |
| Sizewell A2 | Gas-cooled (GCR / AGR) | — | Shut down | 210 | 1,010 | Apr 1961 | Apr 1966 | Dec 2006 | — |
Operator: EDF Energy (Sizewell B) · Magnox LTD (Sizewell A1, Sizewell A2).
Owner: Nuclear Decommissioning Authority (Sizewell A1, Sizewell A2).