List of power stations in Wales


This is a list of electricity-generating power stations in Wales, sorted by type and name, with installed capacity.
Note that the DBERR maintains a comprehensive list of operational UK power stations here:

Nuclear power stations

Nuclear power stations
NameLocationCoordinatesOutputNotes
TrawsfynyddGwynedd470 MW
WylfaAnglesey980 MW

Coal-fired

Coal-fired power stations:
NameLocationCoordinatesOutputNotes
Aberthaw power stationsVale of Glamorgan1500 MW
Uskmouth A power stationNear Newport228 MW
Uskmouth B power stationNear Newport393 MWInitially burning coal with intermittent biomass firing up until 2017, planned conversion to burn biomass and waste abandoned. Decommissioned by 2024.
Cardiff power stationsCardiff51°29'42"N 03°08'45"W87.6 MWCommissioned 1894 operational until late 1960s
Carmarthen Bay Power StationBurry Port51°40′47″N 04°14′35″W360 MW
Llanelly power stationLlanelli51°41'33"N 04°10'15"W24 MWoperating until 1967
Marchwiel power stationWrexham53°01'55"N 02°55'25"W12.41 MWoperating until 1959
Newport power stationsNewport51°35'11"N 02°59'08"W80 MWoperating 1895 to late 1970s
Rogerstone power stationRogerstone near Newport126 MW
Llynfi Power StationBridgend51°34′13″N 03°36′40″W120 MW
Tir John power stationSwansea51°37′35″N 03°53′50″W142 MWOil-fired from 1967
Upper Boat power stationPontypridd51°34'34"N 3°18'07"W144 MW
Penarth power station2.2 MWOperating 1948/9, closed by 1958/9
Bridgend power station2.0 MWOperating 1948/9, closed by 1958/9
Pontypridd power station1.8 MWOperating 1948/9, closed by 1958/9
Penydarren power station0.52 MWOperating 1948/9, closed by 1958/9

Gas-fired (or combined gas/coal)

Gas fired power stations:
NameLocationCoordinatesOutputNotes
Baglan Bay power stationNeath Port Talbot582 MWClosed in 2020
Barry Power StationVale of Glamorgan245 MWDecommissioned March 2019
Connah's Quay Power StationFlintshire1380 MWOriginally coal-fired PF, 6x Parsons 30 MW turbines. Commissioned 1955.
Deeside Power StationFlintshire500 MW
Pembroke Power StationPembroke2000 MW, operational 2012
Severn Power StationUskmouth824 MWMothballed August 2020
Shotton Power StationFlintshire210 MWCHP
BioGen GwyriadGwynedd3.5 MWBiogas

Hydro-electric

Hydro-electric power stations:
NameLocationCoordinatesOutputNotes
Cwm Dyli hydro power stationGwynedd10 MWcommissioned 1906 operational
Dinorwig Power StationGwynedd1728 MW
Dolgarrog power stationConwy (county borough)53°11'28"N 3°50'33"W28 MWcommissioned 1907 operational 2020
Dolgelley power stationDolgellau148 kWhydro + oil engine
Ffestiniog Power StationGwynedd360 MW
Machynlleth A power stationPowys250 kWhydro + oil engine
Maentwrog power stationGwynedd52°56'10"N 4°00'15"W30 MWcommissioned 1928, refitted 1988-92
Rheidol Power StationCeredigion49 MW
River Tawe BarrageSwansea
Towyn power stationTywyn950 kWhydro + oil engine
Radyr Hydro SchemeCardiff51°31'9.79"N 3°15'13.50"W394 kWHydro

Oil-fired

Oil-fired power stations:
NameLocationCoordinatesOutputNotes
Aberystwyth power stationCeredigion52°24'45"N 4°05'03"W5 MWDiesel fired generators, closed by 1978
Haverfordwest power stationPembrokeshire8.465 MWOil engines operational 1959
Machynlleth A and B power stationsPowys522 kW, 4.258 MW Diesel fired generators, closed by 1978
Milford Haven power stationPembrokeshire815 kWOil engines, closed 28 February 1958
Pembroke Power StationPembrokeshire2000 MWclosed 1999, now demolished
Lampeter power station400 kWInternal combustion, Operating 1948/9, closed by 1958/9
Llandrindod Wells power station231 kWInternal combustion, Operating 1948/9, closed by 1958/9
St Clears power station113 kWInternal combustion, Operating 1948/9, closed by 1958/9
Aberayron power station100 kWInternal combustion, Operating 1948/9, closed by 1958/9

Wind power

Wind power generating facilities:
NameLocationCoordinatesOutputNotes
Alltwalis Wind FarmCarmarthenshire23 MW
Brechfa Forest Wind FarmGwernogle, Carmarthenshire90 MW
Carno wind farmCarno, Powys, Mid Wales49 MW
Cefn Croes wind farmCeredigion58.5 MW
Moel MaelogenConwy14.3 MW
North Hoyle Offshore Wind FarmLiverpool Bay60 MW
Pen y CymoeddNeath228 MW
Rhyd-y-GroesAnglesey7 MW
Rhyl FlatsLiverpool Bay90 MW
Gwynt y MôrIrish Sea576 MW