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 (May 2007).

Note that the DBERR maintains a comprehensive list of UK power stations here:

Biomass

Biomass power stations:

Name	Location	Coordinates	Output	Notes
Uskmouth B	Newport	51°32'58.41"N 2°58'11.51"W	260 MW	Initially burning coal up until 2017 the station is now planned to start burning Biomass and Waste in 2021

Name	Location	Coordinates	Output	Notes
Trawsfynydd	Gwynedd	52°55′29.51″N 3°56′54.38″W	470 MW	(Decommissioned in 1991)
Wylfa	Anglesey	53°25′00″N 4°29′00″W	980 MW	(Decommissioned in 2015)
Aberporth	Barry

Coal-fired power stations:

Name	Location	Coordinates	Output	Notes
Aberthaw Power Station	Vale of Glamorgan	51°23′14″N 3°24′18″W	1500 MW	(Decommissioned in 2020)
Uskmouth A Power Station	Near Newport	51°32′57″N 2°58′14″W	228 MW	(Decommissioned in 1981)
Uskmouth B Power Station	Near Newport	51°32′57″N 2°58′14″W	393 MW	Intermittent biomass firing
Cardiff power stations	Cardiff	51°29'42"N 03°08'45"W	87.6 MW	Commissioned 1894 operational until late 1960s
Carmarthen Bay Power Station	Burry Port	51°40′47″N 04°14′35″W	360 MW	(Decommissioned in 1984)
Llanelly power station [1]	Llanelli	51°41'33"N 04°10'15"W	24 MW	operating after 1967
Marchwiel power station	Wrexham	53°01'55"N 02°55'25"W	12.41 MW	operating 1959
Newport power stations	Newport	51°35'11"N 02°59'08"W	80 MW	operating 1895 to late 1970s
Rogerstone Power Station	Near Newport		126 MW	(Decommissioned in 1984)
Llynfi Power Station[1]	Bridgend	51°34′13″N 03°36′40″W	120 MW	(Decommissioned in 1977)
Tir John Power Station	Swansea	51°37′35″N 03°53′50″W	142 MW	Oil-fired from 1967 (Decommissioned in 1976)
Upper Boat Power Station	Pontypridd	51°34'34"N 3°18'07"W	144 MW	(Decommissioned in 1972)

Gas (or combined gas/coal) fired power stations:

Name	Location	Coordinates	Output	Notes
Baglan Bay power station	Neath Port Talbot	51°37′11″N 3°49′47″W	582 MW[2]
Barry Power Station	Vale of Glamorgan	51°24′29″N 3°13′43″W	245 MW	decommissioned in 2019
Connah's Quay Power Station	Flintshire	53°13′56″N 3°04′53″W	1380 MW	Originally coal-fired PF, 6x Parsons 30 MW turbines. Commissioned 1955.
Deeside Power Station	Flintshire	53°14′02″N 3°02′02″W	500 MW
Pembroke Power Station	Pembroke	51°40′59″N 4°59′18″W	2000 MW	(planning approved 2009)operational 2012
Severn Power Station	Uskmouth	51°32′52″N 2°58′35″W	824 MW
Shotton Power Station	Flintshire	53°14′02″N 3°01′58″W	210 MW	CHP (currently decommissioned)
BioGen Gwyriad	Gwynedd	53.047741°N 2.993057°W / 53.047741; -2.993057 (BioGen Gwyriad)	3.5 MW	biogas[3]

Hydro-electric power stations:

Name	Location	Coordinates	Output	Notes
Cwm Dyli hydro power station[1]	Gwynedd		10 MW	commissioned 1906 operational
Dinorwig Power Station	Gwynedd	53°7′7″N 4°6′50″W	1728 MW	(pumped storage)
Dolgarrog power station	Conwy (county borough)	53°11'28"N 3°50'33"W	28 MW	commissioned 1907 operational 2020
Dolgelley power station	Dolgellau		148 kW	hydro + oil engine
Ffestiniog Power Station	Gwynedd	52°58′51″N 3°58′8″W	360 MW	(pumped storage)
Machynlleth A power station	Powys		250 kW	hydro + oil engine[1]
Maentwrog power station[1]	Gwynedd	52°56'10"N 4°00'15"W	30 MW	commissioned 1928, refitted 1988-92
Rheidol Power Station	Ceredigion	52°23′46″N 3°54′00″W	49 MW
River Tawe Barrage	Swansea	51°36′58″N 3°55′44″W
Towyn power station[1]	Tywyn		950 kW	hydro + oil engine
Radyr Hydro Scheme	Cardiff	51°31'9.79"N 3°15'13.50"W	394 kW	Hydro (River Weir Screw Turbines)

Oil-fired power stations:

Name	Location	Coordinates	Output	Notes
Aberystwyth power station	Ceredigion	52°24'45"N 4°05'03"W	5 MW	Diesel fired generators, closed by 1978
Haverfordwest power station[1]	Pembrokeshire		8.465 MW	Oil engines (8) operational 1959
Machynlleth A and B power stations	Powys		522 kW (A), 4.258 MW (B)	Diesel fired generators, closed by 1978
Milford Haven power station	Pembrokeshire		815 kW	Oil engines, closed 28 February 1958
Pembroke Power Station	Pembrokeshire	51°40′59″N 4°59′18″W	2000 MW	closed 1999, now demolished

Wind power generating facilities:

Name	Location	Coordinates	Output	Notes
Alltwalis Wind Farm	Carmarthenshire	51°58′24″N 4°15′3″W	23 MW
Brechfa Forest Wind Farm	Gwernogle, Carmarthenshire		90 MW
Carno wind farm	Carno, Powys, Mid Wales	52°33′1″N 3°36′1″W	49 MW
Cefn Croes wind farm	Ceredigion	52°24′18″N 3°45′03″W	58.5 MW
Moel Maelogen	Conwy	53°08′07″N 3°43′25″W	14.3 MW
North Hoyle Offshore Wind Farm	Liverpool Bay	53°26′N 3°24′W	60 MW
Pen y Cymoedd	Neath	51°41′01″N 03°41′01″W	228 MW
Rhyd-y-Groes	Anglesey		7 MW
Rhyl Flats	Liverpool Bay	53°22′N 03°39′W	90 MW
Gwynt y Môr	Irish Sea	53°27′N 03°35′W	576 MW	(consent granted 2008, construction began 2011)

Wave power generating facilities:

Name	Location	Coordinates	Output	Notes

Garrett, Frederick C. (ed) (1959). Garcke's Manual of Electricity Supply vol.56. London: Electrical Press. pp. A-26 to A-110.CS1 maint: extra text: authors list (link)
"Baglan Bay | Calon Energy Limited". calonenergy.com. Retrieved 5 August 2019.
"Biogen in Wales | Food Recycling in Wales | Biogen". www.biogen.co.uk.

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