Hydro schemes and pumped storage in the UK

Every hydroelectric scheme and pumped-storage station in the UK government's register of power stations, from small run-of-river schemes to Cruachan and Dinorwig. Each site page merges the government's operating record with its planning history where the two match.

Sites129

Capacity4,366 MW

Small hydro73110 MW

Large hydro521,356 MW

Site	Capacity	Type	Region	Operator
Dinorwig Power Station	1,800 MW	Pumped storage	Wales	Engie Power
Cruachan	440 MW	Pumped storage	Scotland	Drax Group
Ffestiniog Power Station	360 MW	Pumped storage	Wales	Engie Power
Foyers Pumped Storage	300 MW	Pumped storage	Scotland	SSE Group
Sloy	153 MW	Large hydro	Scotland	SSE Group
Glendoe Hydro Power Station	100 MW	Large hydro	Scotland	SSE Group
Errochty	75 MW	Large hydro	Scotland	SSE Group
Fasnakyle	69 MW	Large hydro	Scotland	SSE Group
Clunie	61.2 MW	Large hydro	Scotland	SSE Group
Lochay	46 MW	Large hydro	Scotland	SSE Group
Rannoch	45 MW	Large hydro	Scotland	SSE Group
Clachan	40 MW	Large hydro	Scotland	SSE Group
Deanie	38 MW	Large hydro	Scotland	SSE Group
Glenmoriston	37 MW	Large hydro	Scotland	SSE Group
Maentwrog	35.3 MW	Large hydro	Wales	Babcock International and Fluor Inc
Luichart	34 MW	Large hydro	Scotland	SSE Group
Tummel	34 MW	Large hydro	Scotland	SSE Group
Tongland	33 MW	Large hydro	Scotland	Drax Group
Inverawe	25 MW	Large hydro	Scotland	SSE Group
Glenlee	24 MW	Large hydro	Scotland	Drax Group
Kendoon	24 MW	Large hydro	Scotland	Drax Group
Rheidol Hydro Scheme Gen 2	20.5 MW	Large hydro	Wales	Statkraft
Rheidol Hydro Scheme Gen 3	20.5 MW	Large hydro	Wales	Statkraft
Aigas Power Station - A,E	20 MW	Large hydro	Scotland	SSE Group
Kilmorack Power Station -A,E	20 MW	Large hydro	Scotland	SSE Group
Invergarry Power Station - A,E	20 MW	Large hydro	Scotland	SSE Group
Grudie Bridge Power Station - A, G	18.7 MW	Large hydro	Scotland	SSE Group
Mossford Power Station - A,G	18.7 MW	Large hydro	Scotland	SSE Group
Shin Power Station-A,G	18.6 MW	Large hydro	Scotland	SSE Group
Quoich Power Station - A, E, G	18.1 MW	Large hydro	Scotland	SSE Group
Orrin Power Station- A	18 MW	Large hydro	Scotland	SSE Group
Culligran Power Station Unit 2 - A	17.1 MW	Large hydro	Scotland	SSE Group
High Head	17 MW	Large hydro	Wales	RWE Npower
St Fillans Power Station - A, G	16.8 MW	Large hydro	Scotland	SSE Group
Ceannacroc Power Station - A, E	16.5 MW	Large hydro	Scotland	SSE Group
Finlarig Power Station - A,G	16.5 MW	Large hydro	Scotland	SSE Group
Livishie Power Station - A	15 MW	Large hydro	Scotland	SSE Group
Nant Power Station - A,E	15 MW	Large hydro	Scotland	SSE Group
Pitlochry Power Station - A	15 MW	Large hydro	Scotland	SSE Group
Torr Achilty Power Station - A,E	15 MW	Large hydro	Scotland	SSE Group
Low Head	15 MW	Large hydro	Wales	RWE Npower
Earlstoun	14 MW	Large hydro	Scotland	Drax Group
Rheidol Hydro Scheme Gen 1	13.5 MW	Large hydro	Wales	Statkraft
Carsfad	12 MW	Large hydro	Scotland	Drax Group
Bonnington	11 MW	Large hydro	Scotland	Drax Group
Cashlie Power Station - A,C	11 MW	Large hydro	Scotland	SSE Group
Cassley Power Station - A,C,E	10 MW	Large hydro	Scotland	SSE Group
Cwm Dyli	9.9 MW	Large hydro	Wales	RWE Npower
Striven Power Station - A	8 MW	Large hydro	Scotland	SSE Group
Gaur Power Station - A	7.9 MW	Small hydro	Scotland	SSE Group

Largest operators

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More on uk hydro power

This list covers sites in operation. Proposals, consented schemes and sites under construction are in the project pipeline. For how the technology works, see the guide.

Source: Department for Energy Security and Net Zero, Digest of UK Energy Statistics (DUKES) table 5.11, and the Renewable Energy Planning Database. Capacities are installed capacity, not live output.