Hydroelectricity in the United Kingdom

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The Dinorwig Power Station lower reservoir, a 1,800 MW pumped-storage hydroelectric scheme, in north Wales, and the largest hydroelectric power station in the UK
Hydroelectricity accounted for 21% of electricity generation from renewable sources in the United Kingdom (2009)[1]

As of 2012, hydroelectric power stations in the United Kingdom accounted for 1.65 GW of installed electrical generating capacity, being 1.8% of the UK's total generating capacity and 18% of UK's renewable energy generating capacity. This includes for conventional hydroelectric power stations and run-of-river schemes for which annual electricity production is approximately 5,000 GWh, being about 1.3% of the UK's total electricity production.[2] In addition, there are also pumped-storage hydroelectric power stations providing a further 2.8 GW of installed electrical generating capacity, and contributing up to 4,075 GWh of peak demand electricity annually.[3]

The potential for further practical and viable hydroelectricity power stations in the UK is estimated to be in the region of 146 to 248 MW for England and Wales,[4] and up to 2,593 MW for Scotland.[5] However, by the very nature of the remote and rugged geographic locations of some of these potential sites, in national Parks or other areas of outstanding natural beauty, it is likely that environmental concerns would mean that a large number of them would be deemed not to be suitable, or could not be developed to their full theoretical potential.

Interest in hydropower in the UK has been renewed in recent years due to new UK and EU targets for reductions in Carbon emissions and the promotion of renewable energy power generation through commercial incentives such as the Renewable Obligation Certificate scheme (ROCs) and Feed in tariffs (FITs). Prior to such schemes, previous studies to assess the available hydro resources in the UK had discounted a large number of sites for reasons of poor economic or technological viability, but more recent studies in 2008 and 2010 by the British Hydro Association (BHA) have identified a larger number of viable sites due to improvements in the available technology and the economic of ROCs and FITSs[4][5]

Schemes up to 50 kW are eligible for FITs, and schemes over 5 MW are eligible for ROCs. Schemes between 50 kW and 5 MW can choose between either. The UK Government’s National Renewable Energy Action Plan of July 2010 envisages between 40 MW and 50 MW a year of new hydropower schemes being installed annually up to 2020. The most recent feedback for new hydro schemes is for 2009, and approximately 15 MW of new hydropower was installed during that year. It therefore remains to be seen if the ROC and FIT incentives will be enough for these ambitious targets to be met.[2]

Statistics for UK hydroelectric schemes[edit]

List of UK hydroelectric schemes over 1,000 kW[edit]

Name
Operator
Location
Capacity (kW)
Notes
Clachan Scottish & Southern Energy plc. Argyll, Scotland 40,000
Cruachan Dam Scottish Power Argyll, Scotland 400,000 Pumped-storage
Dinorwig Power Station First Hydro Company Wales 1,728,000 Pumped-storage
Errochty Scottish & Southern Energy plc. Scotland 75,000
Ffestiniog Power Station First Hydro Company Wales 360,000 Pumped Storage
Glendoe Hydro Scheme SSE Generation Ltd Inverness-shire, Scotland 100,000 600m hydraulic head - largest in the UK
Glenlee Scottish Power Scotland 24,000
Glenmoriston Scottish & Southern Energy plc. Highland, Scotland 37,000
Inverawe Scottish & Southern Energy plc. Argyll, Scotland 25,000
Kendoon Scottish Power Scotland 24,000
Lochaber Alcan Primary Metals - Europe Highland, Scotland 84,000
Maentwrog Site Nuclear Decommissioning Authority Wales 30,000
Rannoch Scottish & Southern Energy plc Scotland 44,100
Rheidol Powergen Cardiganshire, Wales 50,000
Sloy Scottish & Southern Energy plc Argyll, Scotland 160,000
Tongland Scottish Power Scotland 33,000
Tummel Scottish & Southern Energy plc. Scotland 34,000
Aigas Power Station Scottish & Southern Energy plc. Inverness-shire, Scotland 20,000
Bonnington Scottish Power Scotland 11,000
Carsfad Scottish Power Generation UK Kirkcudbrightshire, Scotland 12,000
Cashlie Power Station Scottish & Southern Energy plc. Perthshire, Scotland 11,000
Cassley Power Station Scottish & Southern Energy plc. Sutherland, Scotland 10,000
Ceannacroc Power Station Scottish & Southern Energy plc. Inverness-shire, Scotland 20,000
Culligran Power Station Unit 2 SSE Generation Ltd Inverness-shire, Scotland 17,100
Dinas Power Station Powergen UK Plc Cardiganshire, Wales 13,500
Dolgarrog High-Head Power Station Conwy Road Dolgarrog Power Station, Dolgarrog, Nr Conwy, Wales 18,400
Dolgarrog Low-Head Power Station Conwy Road Dolgarrog Power Station, Dolgarrog, Nr Conwy, Wales 14,980
Earlstoun Scottish Power Kirkcudbrightshire, Scotland 14,000
Finlarig Scottish & Southern Energy plc. Scotland 16,900
Grudie Bridge Scottish & Southern Energy plc. Scotland 18,600
Invergarry Power Station SSE - Generation Ltd Invergarry, Inverness-shire, Scotland 19,975
Kilmorack Scottish & Southern Energy plc Scotland 20,000
Kinlochleven Hydro Power Station Alcan Primary Metal - Europe Argyll, Scotland 19,500
Livishie Power Station Scottish & Southern Energy plc. Inverness-Shire, Scotland 17,000
Mossford Power Station Scottish & Southern Energy plc. Inverness-shire, Scotland 18,600
Nant Scottish & Southern Energy plc. Argyll, Scotland 15,000
Orrin Scottish & Southern Energy plc. Ross-shire, Scotland 18,000
Orrin Power Station SSE Generation Ltd Ross-shire, Scotland 18,000
Pitlochry Power Station Scottish & Southern Energy plc. Scotland 15,000
Quoich Power Station SSE Generation Ltd Tomdoun, By Loch Garry, Nr Fort Augustus, Inverness-shire, Scotland., Scotland 18,050
Shin Power Station Scottish & Southern Energy plc. Sutherland, Scotland 18,620
St Fillans Scottish & Southern Energy plc. Scotland 16,830
Torr Achilty Power Station Scottish & Southern Energy plc Ross-shire, Scotland 15,000
Achanalt Scottish & Southern Energy plc Ross-shire, Scotland 3,100
Alt na-Lairgie SSE Generation Argyll and Bute, Scotland 6,000
Ardverikie Ardverikie Estates Ltd Inverness-shire, Scotland 1,100
Beeston Weir Novera Energy England 1,676 largest run-of-river scheme in England
Black Rock Npower Renewables Highland, Scotland 3,000
Braevallich Hydro Station Npower Renewables Argyll, Scotland 2,274
Broken Cross Muir Hydro The Scottish Coal Company Ltd Scotland 1,000
Callop Broadland properties Scotland 1,087
Carnoch Npower Renewables Scotland 1,350
Chliostair Power Station Scottish & Southern Energy plc Scotland 1,320
Chonais SSE Generation Ltd Highland, Scotland 3,500
Cuaich Scottish & Southern Energy plc. Inverness-shire, Scotland 2,500
Cuileig Power Station Scottish & Southern Energy plc. Wester Ross, Scotland 3,300
Culligran Comp Set Scottish & Southern Energy plc. Inverness-shire, Scotland 2,000
CWM Rheidol Hydro Dam Powergen UK Plc Cardiganshire, Wales 1,000
Dalchonzie Scottish & Southern Energy plc. Scotland 4,000
Deanie Scottish & Southern Energy plc. Highland, Scotland 3,800
Douglas Water Power Station Npower Renewables Argyll, Scotland 3,000
Drumjohn Power Station ScottishPower Dumfries and Galloway, Scotland 2,200
East Aberchalder Npower Renewables Inverness-shire, Scotland 3,500
Elan Valley Novera Energy Powys, Wales 3,113
Eredine Hydro Project NPower renewables Argyll and Bute, Scotland 2,500
Falls Of Unich Npower Renewables Angus, Scotland 6,000
Fasnakyle Power Station Scottish & Southern Energy plc. Inverness-Shire, Scotland 7,701
Foyers Fall Power Station Scottish & Southern Energy plc. Inverness-shire, Scotland 5,036
Foyers Scottish & Southern Energy plc. Inverness-shire, Scotland 300,000 Pumped-storage
Franklaw Hydro at Franklaw Water Treatment United Utilities PLC 1,000
Garrogie Power Station Npower Renewables Inverness-shire, Scotland 2,400
Gaur Scottish & Southern Energy plc Perthshire, Scotland 7,900
Glenn Dubh Hydro Npower Renewables Highland, Scotland 3,000
Inverar Hydro Npower Renewables Perth & Kinross, Scotland 1,100
Inverbroom Norgen (Ffestiniog) Ltd Highland, Scotland 3,170
Inverfarigaig GreenPower Inverness-shire, Scotland 4,000
Inverlael Npower Renewables Scotland 1,250
Kerry Falls Scottish & Southern Energy plc. Highland, Scotland 1,250
Kielder Power Station Northumbrian Water Ltd England 5,500 largest conventional hydro in England
Kilmelford Power Station Scottish & Southern Energy plc. Argyll, Scotland 2,500
Kingairloch Hydro SSE Generation Ltd Inverness-shire, Scotland 3,500
Lairg Scottish & Southern Energy plc. Sutherland, Scotland 3,500
Lednock Scottish & Southern Energy plc. Scotland 3,000
Little Loch Roag SSE Generation Ltd Scotland 1,000
Llyn Brianne Novera Energy Carmarthenshire, Wales 4,600
Llyn Celyn Novera Energy Wales 4,507
Loch Dubh Scottish & Southern Energy plc. Wester Ross, Scotland 1,200
Loch Eilde Mor Hydro Plan (for Alcan) Highland, Scotland 7,000
Loch Ericht Power Station Scottish & Southern Energy plc. perthshire, Scotland 2,200
Loch Gair Scottish & Southern Energy plc. Argyll, Scotland 6,000
Loch Turret WTW Scottish Water Perth & Kinross, Scotland 1,950
Lochay Compensation Generator SSE Generation Ltd Perthshire, Scotland 2,000
Lochiel Estate Highland Light and Power Ltd Highland, Scotland 1,315
Lubreoch Power Station Scottish & Southern Energy plc. Scotland 5,000
Lussa Scottish & Southern Energy plc. Argyll, Scotland 2,400#
Maldie Burn Npower Renewables Highland, Scotland 2,000
Mary Tavy Power Station South West Water Ltd Devon, England 2,600
Mucomir Scottish & Southern Energy plc. Highland, Scotland 2,000
Mullardoch Tunnel Scottish & Southern Energy plc. Inverness-shire, Scotland 2,400
Nostie Bridge Scottish & Southern Energy plc. Ross-shire, Scotland 1,300
River E Power Station Npower Renewables Inverness-shire, Scotland 3,000
Siadar wavegen / Npower Renewables Scotland 3,000
Sron Mor Power Station Scottish & Southern Energy plc. Argyll, Scotland 5,000
Stonebyres Power Station Scottish Power UK Plc Lanarkshire, Scotland 6,000
Storr Lochs Scottish & Southern Energy plc Isle of Skye, Scotland 2,400
Striven Power Station Scottish & Southern Energy plc. Argyll, Scotland 8,000
Trossachs SSE Generation Ltd Stirlingshire, Scotland 2,500
Urlar Hydro Bolfracks Estate Perth & Kinross, Scotland 1,400
Victoria Falls Station CRF Hydropower Argyll, Scotland 1,120

See also[edit]

Related Lists

Related UK pages

Other related

References[edit]

External links[edit]