25 nuclear power plants in United Kingdom, totalling 27,683 MW of installed capacity — ranked by size, from open data.
| # | Plant | Region | MW |
|---|---|---|---|
| 1 | Moorside nuclear power plant | Cumbria | 3,405 |
| 2 | Moorside Clean Energy Hub nuclear power plant | Cumbria | 3,200 |
| 3 | Wylfa Newydd nuclear power plant | Anglesey | 2,760 |
| 4 | Bradwell B nuclear power plant | 2,300 | |
| 5 | Sellafield (Candu) nuclear power plant | Cumbria | 1,480 |
| 6 | Torness | Scotland | 1,364 |
| 7 | Sizewell B | England | 1,250 |
| 8 | Heysham 2 | England | 1,230 |
| 9 | Hartlepool | England | 1,180 |
| 10 | Heysham 1 | England | 1,155 |
| 11 | Dungeness B | England | 1,120 |
| 12 | Wylfa nuclear power plant | 1,070 | |
| 13 | Hunterston B | Scotland | 965 |
| 14 | Hinkley Point B | England | 955 |
| 15 | Cumbria nuclear power plant | Cumbria | 940 |
| 16 | Wylfa SMR nuclear power plant | Anglesey | 924 |
| 17 | Sellafield (Hitachi) nuclear power plant | Cumbria | 622 |
| 18 | Trawsfynydd nuclear power plant | Gwynedd | 470 |
| 19 | Berkeley nuclear power plant | Gloucestershire | 332 |
| 20 | Dounreay nuclear power plant | Highland | 265 |
| 21 | Calder Hall nuclear power plant | Cumbria | 240 |
| 22 | Chapelcross nuclear power plant | Dumfries and Galloway | 240 |
| 23 | Winfrith SGHWR nuclear power plant | Dorset | 100 |
| 24 | Llynfi nuclear power plant | Bridgend | 80 |
| 25 | Windscale AGR nuclear power plant | Cumbria | 36 |
WRI Global Power Plant Database (CC BY 4.0).
