| Station | Type | Capacity | Stage | Region | Operator |
| Hinkley Point C |
Nuclear power station |
3,260 MW |
Under construction |
South West |
EDF Energy |
| Sizewell C |
Nuclear power station |
3,260 MW |
Under construction |
Suffolk |
EDF / UK Government |
| Drax Power Station |
Biomass power station |
2,595 MW |
Operating |
Yorkshire |
Drax Group |
| Drax Power Station Biomass Units |
Biomass power station |
2,580 MW |
Operating |
Yorkshire and the Humber |
Drax Group |
| Longannet Power Station |
Coal-fired power station |
2,400 MW |
Closed |
Scotland |
Scottish Power |
| Pembroke |
Gas-fired power station |
2,199 MW |
Operating |
Wales |
RWE Npower |
| Ratcliffe-on-Soar Power Station |
Coal-fired power station |
2,116 MW |
Closed |
Nottinghamshire |
Uniper |
| West Burton A Power Station |
Coal-fired power station |
2,012 MW |
Closed |
Nottinghamshire |
EDF Energy |
| Cottam Power Station |
Coal-fired power station |
2,008 MW |
Closed |
Nottinghamshire |
EDF Energy |
| Didcot A Power Station |
Coal-fired power station |
2,000 MW |
Closed |
Oxfordshire |
RWE npower |
| Ferrybridge C Power Station |
Coal-fired power station |
2,000 MW |
Closed |
Yorkshire |
SSE |
| Kingsnorth Power Station |
Coal-fired power station |
2,000 MW |
Closed |
Kent |
E.ON UK |
| Fiddler's Ferry Power Station |
Coal-fired power station |
1,995 MW |
Closed |
Cheshire |
SSE |
| Eggborough Power Station |
Coal-fired power station |
1,960 MW |
Closed |
North Yorkshire |
Eggborough Power Ltd |
| Staythorpe |
CCGT gas power station |
1,828 MW |
Operating |
East Midlands |
RWE Npower |
| Aberthaw B Power Station |
Coal-fired power station |
1,586 MW |
Closed |
Vale of Glamorgan |
RWE |
| Grain |
Gas-fired power station |
1,517 MW |
Operating |
South East |
Uniper UK |
| Didcot B |
Gas-fired power station |
1,450 MW |
Operating |
South East |
RWE Npower |
| Connahs Quay |
Gas-fired power station |
1,380 MW |
Operating |
Wales |
Uniper UK |
| EP SHB LTD |
CCGT gas power station |
1,365 MW |
Operating |
Yorkshire and the Humber |
EPUKi |
| West Burton CCGT |
CCGT gas power station |
1,332 MW |
Operating |
East Midlands |
UK Transition Limited |
| VPI |
CCGT gas power station |
1,252 MW |
Operating |
Yorkshire and the Humber |
Vitol |
| Heysham 2 |
Nuclear power station |
1,240 MW |
Operating |
North West |
EDF Energy |
| Seabank Power Ltd |
CCGT gas power station |
1,234 MW |
Operating |
South West |
Co-owned by SSE Group and Cheung Kong Infrastructure Ltd |
| Hinkley Point B |
Nuclear power station |
1,220 MW |
Closed |
Somerset |
NDA / NRS |
| Saltend Power Station |
Gas-fired power station |
1,200 MW |
Operating |
Yorkshire and the Humber |
Energy Capital Partners |
| Torness |
Nuclear power station |
1,200 MW |
Operating |
Scotland |
EDF Energy |
| Sizewell B |
Nuclear power station |
1,198 MW |
Operating |
East of England |
EDF Energy |
| Hartlepool |
Nuclear power station |
1,185 MW |
Operating |
North East |
EDF Energy |
| Peterhead |
Gas-fired power station |
1,180 MW |
Operating |
Scotland |
SSE Group |
| Cockenzie Power Station |
Coal-fired power station |
1,152 MW |
Closed |
East Lothian |
Scottish Power |
| Heysham 1 |
Nuclear power station |
1,060 MW |
Operating |
North West |
EDF Energy |
| Rugeley B Power Station |
Coal-fired power station |
1,050 MW |
Closed |
Staffordshire |
Engie |
| Thorpe Marsh Power Station |
Coal-fired power station |
1,050 MW |
Closed |
South Yorkshire |
National Power |
| Tilbury B Power Station |
Coal-fired power station |
1,050 MW |
Closed |
Essex |
RWE npower |
| Dungeness B |
Nuclear power station |
1,040 MW |
Closed |
Kent |
NDA / NRS |
| Ironbridge B Power Station |
Coal-fired power station |
1,000 MW |
Closed |
Shropshire |
E.ON UK |
| Hunterston B |
Nuclear power station |
980 MW |
Closed |
Ayrshire |
NDA / NRS |
| Wylfa Nuclear Power Station |
Nuclear power station |
980 MW |
Closed |
Anglesey |
NDA / NRS |
| Spalding Energy Company Ltd |
CCGT gas power station |
950 MW |
Operating |
East Midlands |
Intergen |
| High Marnham Power Station |
Coal-fired power station |
945 MW |
Closed |
Nottinghamshire |
TXU Europe |
| EP Langage Ltd |
CCGT gas power station |
905 MW |
Operating |
South West |
EPUKi |
| Marchwood Power |
CCGT gas power station |
898 MW |
Operating |
South East |
Marchwood Power |
| Carrington Power |
CCGT gas power station |
884 MW |
Operating |
North West |
ESB |
| Severn Power Ltd |
CCGT gas power station |
850 MW |
Operating |
Wales |
Calon Energy |
| Keadby 2 |
Gas-fired power station |
840 MW |
Operating |
East Midlands |
SSE Group |
| Rocksavage Power Company Ltd |
CCGT gas power station |
810 MW |
Operating |
North West |
Intergen |
| Damhead Creek |
Gas-fired power station |
805 MW |
Operating |
South East |
Vitol |
| Coryton Energy Company Ltd |
CCGT gas power station |
800 MW |
Operating |
South East |
Intergen |
| Medway |
Gas-fired power station |
755 MW |
Operating |
South East |
SSE Group |
Source: Department for Energy Security and Net Zero, Digest of UK Energy Statistics (DUKES) table 5.11, plus Octary's records of legacy and decommissioned sites. Capacities are installed capacity, not live output. For hand-written histories and engineering diagrams of the UK's major stations, see the power stations atlas.