Lista de presas y embalses en el Reino Unido

• Bollinhurst Reservoir
• Bosley Reservoir, Bosley
• Caballo Coppice Reservoir
• Lamaload Reservoir, al este de Macclesfield

Lymm Dam, Lymm.

• Ridgegate Reservoir and Trentabank Reservoir, sureste de Macclesfield
• Sutton Reservoir, al sur de Macclesfield

• Argal y College Reservoirs, Falmouth
• Boscathnoe Reservoir, Penzance
• Bussow Reservoir, St Ives
• Cargenwen Reservoir
• Colliford Lake, Bodmin Moor
• Crowdy Reservoir, Bodmin Moor
• Drift Reservoir, Penzance
• Porth Reservoir, Newquay
• Siblyback Lake, Bodmin Moor
• Stithians Reservoir
• Lago Tamar superior (Devon y Cornwall)

• Balderhead Reservoir
• Blackton Reservoir
• Burnhope Reservoir
• Derwent Reservoir
• Grassholme Reservoir
• Hisehope Reservoir
• Hurworth Burn Reservoir
• Hury Reservoir
• Selset Reservoir
• Smiddy Shaw Reservoir
• Tunstall Reservoir
• Waskerley Reservoir

• Borrans Reservoir, al norte de Windermere (ciudad)
• Castle Carrock Reservoir
• Chapelhouse Reservoir, sureste de Uldale
• Cow Green Reservoir este de Dufton Fell
• Dubbs Reservoir, al norte de Windermere (ciudad)
• Ennerdale Water
• Fisher Tarn este de Kendal
• Harlock Reservoir, Pennington Reservoir, Poaka Beck Reservoir al oeste de la ciudad de Ulverston
• Haweswater Reservoir
• Hayeswater
• Kentmere Reservoir
• Killington Reservoir
• Meadley Reservoir, por Flat Fell, Ennerdale, Cumbria
• Reservoir de Simpson, al este del puente Newby
• Thirlmere
• Wet Sleddale Reservoir

• Butterley Reservoir
• Codnor Reservoir
• Carsington Water
• Combs Reservoir
• Errwood Reservoir
• Fernilee Reservoir
• Foremark Reservoir
• Hurst Reservoir
• Kinder Reservoir
• Linacre Reservoirs
  • Alto Reservoir
  • Middle Reservoir
  • Reservoir inferior
• Longdendale Cadena de embalses
  • Arnfield Reservoir
  • Hollingworth Reservoir ahora drenado y una reserva natural
  • Bottoms Reservoir
  • Valehouse Reservoir
  • Rhodeswood Reservoir
  • Torside Reservoir
  • Woodhead Reservoir
• Presa de Loscoe
• Mossy Lea Reservoir
• Ogston Reservoir
• Staunton Harold Reservoir
• Swineshaw Reservoir (Derbyshire)
• Toddbrook Reservoir
• Upper Derwent Valley
  • Ladybower Reservoir
  • Derwent Reservoir con Birchinlee
  • Howden Reservoir East half is in Sheffield (South Yorkshire)
• Upper Swineshaw Reservoir (Derbyshire)

• Avon Dam Reservoir
• Burrator Reservoir
• Challacombe/Bray Reservoir
• Butter Brook Reservoir
• Darracott Reservoir
• Fernworthy Reservoir
• Gammaton Reservoirs
• Holywell Reservoir
• Jennetts Reservoir
• Kennick Reservoir
• Lower Tamar Lake
• Melbury Reservoir
• Meldon Reservoir
• River Tavy Reservoir
• Roadford Lake
• Slade Reservoir
• Embalaje de quabmoor
• Tottiford Reservoir
• Trenchford Reservoir
• Lago Tamar superior (Devon y Cornwall)
• Venford Reservoir
• Wheal Jewell Reservoir
• Wistlandpound Reservoir

• Bolton:
  • Belmont Reservoir
  • Bryan Reservoir
  • Dean Mills Reservoir
  • High Rid Reservoir
  • Bajo Rivington Reservoir
  • Rumworth Lodge Reservoir
  • Alto Rivington Reservoir
• Bury
  • Reservoir inferior a la deriva
  • Manchester, Bolton y Bury Reservoir (Elton Reservoir)
• Manchester:
  • Gorton Reservoirs
  • Heaton Park Reservoir
• Oldham:
  • Ashworth Moor Reservoir
  • Besom Hill Reservoir
  • Black Moss Reservoir (Greater Manchester)
  • Brownhouse Wham Reservoir
  • Brujas Clough Reservoir
  • Castleshaw Reservoir
  • Chew_Reservoir
  • Crook Gate Reservoir
  • Diggle Reservoir
  • Dovestones Reservoir
  • Dowry Reservoir
  • Greenfield Reservoir
  • Hamer Pasture Reservoir
  • Reservoir Puente de Año Nuevo
  • Listcon Dean Reservoir
  • Strinesdale Reservoir
  • Yeoman Hey Reservoir
• Rochdale:
  • Ashworth Moor Reservoir
  • Blackstone Edge Reservoir
  • Chelburn Reservoir
  • Greenbooth Reservoir
  • Guardar Lees Reservoir
  • Lago Hollingworth
  • Kitcliffe Reservoir
  • Light Hazzles Reservoir
  • Bajo Chelburn Reservoir
  • Naden Reservoirs (Higher, Middle and Lower)
  • Norman Hill Reservoir
  • Ogden Reservoir
  • Piethorne Reservoir
  • Rooden Reservoir
  • Watergrove Reservoir
• Tameside:
  • Audenshaw Reservoirs
  • Brushes Reservoir
  • Denton Reservoirs
  • Godley Reservoir
  • Superior Swineshaw Reservoir
  • Bajo Swineshaw Reservoir
  • Swineshaw Reservoirs
  • Walkerwood Reservoir
• Wigan:
  • Worthington Lakes

• Anglezarke Reservoir
• Belmont Reservoir
• Black Moss Reservoirs
• Calf Hey Reservoir
• Cowm Reservoir
• Delph Reservoir
• Dingle Reservoir
• Foulridge Reservoir
• High Bullough Reservoir
• Holden Wood Reservoir
• Jumbles Reservoir
• Bajo Rivington Reservoir
• Bajo Roddlesworth Reservoir
• Bajo Ogden Reservoir
• Rake Brook Reservoir
• Spring Mill Reservoir
• Springs Reservoir
• Stocks Reservoir
• Turton and Entwistle Reservoir
• Upper Ogden Reservoir
• Alto Rivington Reservoir
• Alto Roddlesworth Reservoir
• Walves Reservoir
• Reservoir de Ward (Blue Lagoon)
• Watersheddles Reservoir (propiedad de Yorkshire Water)
• Wayoh Reservoir
• Yarrow Reservoir

• Blackbrook Reservoir
• Eyebrook Reservoir (Corby)
• Cropston Reservoir
• Knipton Reservoir
• Nanpantan Reservoir
• Saddington Reservoir
• Staunton Harold Reservoir
• Swithland Reservoir
• Thornton Reservoir

• Brent Reservoir (también conocido como el Welsh Harp)
• Grand Junction Reservoir
• Stain Hill Reservoirs
• Stoke Newington West Reservoir
• Sunnyside Reservoir

Los siguientes embalses forman la Cadena de Reservoir del Valle de Lee.

• King George's Reservoir, Londres Borough of Enfield (también conocido como King George V Reservoir)
• William Girling Reservoir, Londres Borough of Enfield
• Banbury Reservoir, Londres Borough of Waltham Forest
• Lockwood Reservoir, Londres Borough of Waltham Forest
• High Maynard Reservoir, Londres Borough of Waltham Forest
• Low Maynard Reservoir, Londres Borough of Waltham Forest
• Walthamstow Reservoirs, London Borough of Waltham Forest, five linked numbered embalses
• East Warwick Reservoir, Londres Borough of Waltham Forest
• West Warwick Reservoir, Londres Borough of Waltham Forest

• Barby Storage Reservoir
• Boddington Reservoir, Embalaje de suministro de canal de Oxford, Boddington superior
• Cransley Reservoir (Kettering)
• Daventry Reservoir en Daventry Country Park
• Drayton Reservoir (Daventry)
• Reserva de Hollowell Hollowell
• Naseby Reservoir, Grand Union Canal supply, Naseby
• Pitsford Water
• Ravensthorpe Reservoir
• Stanford Reservoir, entre Stanford-on-Avon y South Kilworth
• Sulby Reservoir
• Sywell Reservoir
• Thorpe Malsor Reservoir (Kettering)
• Welford Reservoir

• Bakethin Reservoir
• Catcleugh Reservoir
• Colt Crag Reservoir
• Fontburn
• Hallington Reservoirs
• Little Swinburne Reservoir
• Kielder Water
• Whittle Dene

• Angram Reservoir
• Beaver Dyke Reservoirs
• Chelker Reservoir
• Cod Beck Reservoir
• Elslack Reservoir
• Embsay Reservoir
• Fewston Reservoir
• Gouthwaite Reservoir
• Grimwith Reservoir
• Laneshaw Reservoir
• Leighton Reservoir
• Lindley Wood Reservoir
• Lockwood Beck Reservoir
• Bajo Barden Reservoir
• Lumley Moor Reservoir
• March Ghyll Reservoir
• Mossy Moor Reservoir
• Oulston Reservoir
• Roundhill Reservoir
• Scaling Dam Reservoir
• Scar House Reservoir
• Scargill Reservoir
• Swinsty Reservoir
• Diez Acre Reservoir
• Thornton Steward Reservoir
• Thruscross Reservoir
• Superior Barden Reservoir
• Winterburn Reservoir

• Ashford Reservoir
• Barrow Gurney Tanques
• Blagdon Lake
• Chard Reservoir
• Cheddar Reservoir
• Chew Valley Lake
• Clatworthy Reservoir
• Reserva de Durleigh
• Hawkridge Reservoir
• Leigh Reservoir
• Litton Reservoirs
• Luxhay Reservoir
• Nutscale Reservoir
• Otterhead Lakes
• Sutton Bingham Reservoir
• Wimbleball Lake

• Agden Reservoir
• Broadstone Reservoir
• Broomhead Reservoir
• Dale Dyke Reservoir
• Damflask Reservoir
• Elsecar Reservoir
• Harthill Reservoir, alimentador del canal Chesterfield
• Howden Reservoir La mitad occidental está en Derbyshire
• Ingbirchworth Reservoir
• Langsett Reservoir
• Midhope Reservoir
• Más Hall Reservoir
• Pebley Reservoir (Sheffield)
• Redmires Reservoirs
• Represas de Rivelin
• Royd Moor Reservoir
• Scout Dyke Reservoir
• Snailsden Reservoir
• Strines Reservoir
• Ulley Reservoir
• Underbank Reservoir
• Weecher Reservoir
• Wharncliffe Reservoir
• Windleden Reservoirs
• Winscar Reservoir
• Worsbrough Reservoir

• Bathpool Park Lake
• Belvide Reservoir
• Betley Hall Reservoir
• Blithfield Reservoir
• Bromley Mill Pool
• Brookleys Lake
• Canwell Estate Reservoir
• Chasewater
• Gailey Reservoir
• Gap Pool
• Hales Hall Pool
• Hatherton Reservoir
• Hanch Reservoir
• Holly Bush Lake
• Knypersley Reservoir
• Minster Pool
• Lago Rudyard
• Stowe Pool
• Swinfen Lake
• Tixall Park Pool
• Trentham Gardens Lake
• Tittesworth Reservoir

• Bessborough Reservoir
• Island Barn Reservoir
• King George VI Reservoir
• Knight Reservoir
• Molesey Reservoirs
• Reina Isabel II
• Queen Mary Reservoir
• Reina Madre Reservoir
• Staines Reservoirs
• Wraysbury Reservoir

• Agua de Draycote
• Napton Reservoir, Grand Union Canal
• Oldbury Reservoir
• Packington Lagos, Canal de la Gran Unión
• Shustoke Reservoirs
• Stockton Reservoir, Grand Union Canal
• Wormleighton Reservoir

• Bartley Reservoir (Birmingham)
• Brookvale Park Lake (Birmingham)
• Edgbaston Reservoir (Birmingham)
• Frankley Reservoir (Birmingham)
• Lifford Reservoir (Birmingham)
• Netherton Reservoir, Dudley
• Olton Reservoir, Solihull
• Perry Barr Reservoir (cubierta) (Birmingham)
• Witton Lakes (Birmingham)
• ver también Elan Valley Reservoirs (Wales) que fueron construidos por, y suministro, Birmingham

• Ardsley Reservoir
• Baitings Reservoir
• Bilberry Reservoir
• Blackmoorfoot Reservoir
• Black Moss Reservoir
• Blakeley Reservoir
• Booth Dean Alto Reservoir
• Booth Dean Reservoir
• Booth Wood Reservoir
• Boshaw Whams Reservoir
• Brownhill Reservoir
• Butterley Reservoir
• Chelker Reservoir
• Cupwith Reservoir
• Dean Head Upper Reservoir
• Dean Head Lower Reservoir
• Dean Head Reservoir
• Deer Hill Reservoir
• Digley Reservoir
• Doe Park Reservoir
• Eccup Reservoir
• Eldwick Reservoir
• Elslack Reservoir
• Gorple Bajo Reservoir
• Gorple Upper Reservoir
• Graincliffe Reservoir
• Green Withens Reservoir
• Hewenden Reservoir
• Holme Styes Reservoir
• Keighley Moor Reservoir
• Leeming Reservoir
• Leeshaw Reservoir
• Bajo Laithe Reservoir
• March Ghyll Reservoir
• March Hey Reservoir
• Mixenden Reservoir
• Ogden Reservoir
• Panorama Reservoir
• Ponden Reservoir
• Ramsden Reservoir
• Redbrook Reservoir
• Reva Reservoir
• Riding Wood Reservoir
• Ringstone Edge Reservoir
• Ryburn Reservoir
• Scammonden Reservoir
• Silsden Reservoir
• Stubden Reservoir
• Sunnydale Reservoir
• Swellands Reservoir
• Thornton Moor Reservoir
• Walshaw Dean Reservoirs
• Warland Reservoir (Mostly in West Yorkshire, partly in Greater Manchester)
• Warley Moor Reservoir
• Weecher Reservoir
• Wessenden Reservoir
• Wessenden Head Reservoir
• Widdop Reservoir
• Yateholme Reservoir

• Braeside Reservoir
• Cattofield Reservoir
• Mannofield Reservoir
• Slopefield Reservoir
• Smithfield Reservoir

• Bluehills Reservoir
• Clochandighter Reservoir
• Garlogie Dam
• Inchgarth Reservoir - Cultos
• Loch de Aboyne
• Loch Saugh
• Dama de plata aka Culter indemnización presa

• Reservoir de aguas residuales
• Brewlands Reservoir
• Crombie Reservoir
• Den of Ogil
• Glenogil
• Kinnaird Lake
• Ledcrieff Loch
• Linrathen
• Almacenamiento de agua limpia de Linrathen
• Loch Auchintaple o Auchintaple Loch
• Loch Lee
• Loch Shandra
• Long Loch
• Monikie Clear Water Basin
• Monikie North Pond
• Monikie South (Islandia) Pond
• Piperdam Loch

• Allt na Lairige - Glen Fyne
• Ardlussa Fishing Loch - Isla de Jura
• Asgog Loch - Tighnabruaich
• Aucha Lochy - Campbeltown
• Auchengaich Reservoir - Glen Fruin
• Beochlich - 9 km NW de Inveraray
• Bishop's Glen Reservoir (también conocido como Dunoon Reservoir) - Dunoon
• Blackmill Loch - Minard
• Cam Loch - North Knapdale
• Craignafeich Reservoirs - Tighnabruaich
• Crarae Reservoir - Minard
• Crosshill Loch - Campbeltown
• Cruachan Reservoir - Loch Awe
• Daill Loch - North Knapdale
• Dhu Loch - Bute
• Feorlin - Minard
• Gleann Dubh - Barcaldine
• Gleann Loch - North Knapdale
• Helensburgh No. 1 Reservoir - Helensburgh
• Helensburgh No. 2 Reservoir - Helensburgh
• Kilduskland Reservoir - Ardrishaig
• Kirk Dam - Bute
• Knockruan Loch - Campbeltown
• Leorin Loch - Port Ellen, Islay
• Lindowan Reservoir - Kilcreggan
• Loch A' Bharain - North Knapdale
• Loch A' Chaorainn - South Knapdale
• Loch Allan - Port Askaig, Islay
• Loch a'Mhuillin - North Knapdale
• Loch an Add - North Knapdale
• Loch an Droighinn - Kilchrenan
• Loch an Sgoltaire - Isla de Colonsay
• Loch an Torr - Dervaig, Isla de Mull
• Loch Ascog - Isla de Bute
• Loch Assapol - Bunessan, Isla de Mull
• Loch Awe - parte del esquema hidroeléctrico Awe
• Loch Ba - Gruline, Isla de Mull
• Loch Bearnoch - Lochdon, Isla de Mull
• Loch Beinn Uraraidh - Port Ellen, Islay
• Loch Cam - Bridgend, Isla de Islay
• Loch Chaorunn - South Knapdale
• Loch Ciaran - Clachan, North Kintyre
• Loch Clachaig - North Knapdale
• Loch Eck - Cowal
• Loch Fad - Bute
• Loch Finlas - 4 km SW Lus
• Loch Gearach - Port Charlotte, Islay
• Loch Glashan - Lochgair, Mid-Argyll
• Loch Gleann - Oban
• Loch Iarnan - Port Ellen, Islay
• Loch Leacann - Furnace
• Loch Lebdgei (Dubh Loch) - North Knapdale
• Loch Lebgei - North Knapdale
• Loch Na Bric - North Knapdale
• Loch na Creige Crainde - North Knapdale
• Loch Na Faoilinn - North Knapdale
• Loch Na Sreinge - 9 km NE de Kilmelford
• Loch Nam Ban - Port Askaig, Islay
• Loch Nam Breac Buidhe - North Knapdale
• Loch Nan Torran - South Knapdale
• Loch Righeachan - Inveraray
• Loch Skerrols - Bridgend, Isla de Islay
• Loch Sloy (Reservoir) - 6 km N de Arrochar
• Loch Tarsan - Glen Lean, Cowal
• Loch Tralaig - Kilmelford
• Loch Turamin (New Loch) - Isla de Colonsay
• Loch Uigeadail - Port Ellen, Islay
• Lochan A' Ghurrabain - Tobermory, Isla de Mull
• Lochan Duin - North Knapdale
• Lochan Ghlas - Garelochhead
• Lochan Gleann Astaile - Isla de Jura
• Lochan Lasgainn Mor - Kilmelford
• Baja Glen Shira - 12 km NE de Inveraray
• Luachrach Loch - Oban
• Principal Glen Shira - 13 km NE de Inveraray
• Mishnish Lochs - Tobermory, Isla de Mull
• Nant Reservoir - Kilchrenan
• Oude Reservoir - Kilmelford
• Powder Mill Dam - Tighnabruaich
• Sholum Lochs - Port Ellen, Islay
• Todavía Loch - Ardrishaig
• Strathduie Water - Campbeltown

• Carsfad Loch
• Clatteringshaws Loch
• Glenkiln Reservoir
• Kettleton Reservoir
• Black Esk Dam
• Winterhope Reservoir

• Afton Reservoir
• Corsehouse Reservoir
• Craigendunton Reservoir
• Glenbuck Loch
• Loch Finlas

• Balgray Reservoir
• Littleton Reservoir
• Ryat Linn Reservoir
• Waulkmill Glen Reservoir
• Walton Dam
• Glanderston Dam
• Snypes Dam
• Kirkton Dam
• Harelaw Reservoir, Fereneze Golf Course
• Harelaw Reservoir, Eaglesham Moor
• Rouken Glen Pond
• Craighall Reservoir
• Commore Dam
• White Loch
• Loch negro
• Hermano Loch
• Pequeño Loch
• Pilmuir Reservoir
• Loch Craig
• Bennan Loch
• Corsehouse Reservoir (en la frontera con East Ayrshire)
• Long Loch
• Loch Goin
• Dunwan Loch
• Alta presa
• Picketlaw Reservoir
• Caplaw Dam (en la frontera con Renfrewshire)
• Netherplace Reservoir (en las obras de tinte)
• Glenburn Reservoir

• Clubbiedean Reservoir
• Harlaw Reservoir
• Threipmuir Reservoir
• Torduff Reservoir
• Bonaly Reservoir

• Ballo Reservoir
• Clatto Reservoir
• Cameron Reservoir
• Castlehill Reservoir
• Drumain Reservoir
• Holl Reservoir
• Harperleas Reservoir
• Stenhouse Loch
• Carriston Reservoir
• Donald Rose Reservoir
• Carlhurlie Reservoir

• Blackwater Reservoir, cerca de Kinlochleven
• Clunas Reservoir
• Loch Benevean
• Loch Laggan y Loch Treig - ambos parte del esquema hidroeléctrico de Lochaber
• Loch Monar - parte del esquema hidroeléctrico Strathfarrar
• Loch Quoich y Loch Garry - ambos parte del esquema hidroeléctrico Glen Garry
• Loch Loyne y Loch Cluanie - ambos parte del esquema hidroeléctrico Glen Moriston
• Loch Mullardoch - parte del esquema hidroeléctrico Glen Affric
• Loch Glascarnoch

• Edgelaw Reservoir
• Gladhouse Reservoir
• Glencorse Reservoir
• North Esk Reservoir
• Rosebery Reservoir
• Loganlea Reservoir

• Auldmuir Reservoir
• Barcraigs Reservoir
• Busbie Muir Reservoir
• Caaf Reservoir
• Camphill Reservoir
• Cuffhill Reservoir
• Glenburn Reservoir
• Kelly Reservoir
• Knockendon Reservoir
• Kirkleegreen Reservoir
• Mill Glen Reservoir
• Muirhead Reservoir
• Munnoch Reservoir
• Outerwards Reservoir
• Skelmorlie Reservoir
• Skelmorlie Upper Reservoir

• Birkenburn
• Broadwood Loch
• Daer
• Dalmacoulter
• Forrestburn
• Glenhove No. 1
• Glenhove No. 2
• Hillend Loch
• Lilly Loch
• Roughrigg
• Strathclyde Park
• Townhead Reservoir
• West Corrie

• Dunalastair Water
• Loch Tummel - parte del esquema hidroeléctrico del Valle de Tummel
• Loch Turret Reservoir y Glenturret Dam. Cerca de Crieff
• Bajo Glendevon Reservoir
• Alto Glendevon Reservoir

• Alemoor Loch
• Baddinsgill Reservoir
• Fruid Reservoir
• Megget Reservoir
• Talla Reservoir
• Westwater Reservoir

• Bradan Service Reservoir
• Collenan
• Glendrissaigh
• Loch Bradan
• Loch Riecawr
• Loch Spallander
• Loch Spouts
• Penwhapple
• Raith

• Cochno Loch
• Jaw Reservoir
• Greenside Reservoir
• Carman Reservoir
• Kilmannan Reservoir (en la frontera con Stirling)
• Burncrooks Reservoir (en la frontera con Stirling)

• Llyn Bodgynydd - suministro para la mina de plomo Pandora (desusada)
• Llyn Brenig - parte del sistema de regulación de Dee - también en Denbighshire
• Llyn Coedty - suministro de agua para la estación hidroeléctrica Dolgarrog
• Llyn Conwy - suministro de agua para Llanrwst y Betws-y-Coed
• Llyn Cowlyd - suministro de agua para la bahía de Conwy y Colwyn y para la estación hidroeléctrica Dolgarrog
• Llyn Crafnant - suministro de agua para Llanrwst
• Llyn Dulyn - suministro de agua para Llandudno
• Llyn Melynllyn - suministro de agua para Llandudno
• Llyn Parc - suministro para la mina de Aberllyn (desusada)
• Llyn Elsi - suministro de agua para Betws-y-Coed (desutilizado)

• Aled Isaf Reservoir
• Alwen Reservoir
• Llyn Aled
• Llyn Alwen
• Llyn Brenig - parte del sistema de regulación River Dee
• Llyn Celyn - parte del sistema de regulación River Dee.
• Pendinas Reservoir
• Bala Lake (Llyn Tegid)
• Nant-y-Ffrith Reservoir

• Llyn Anafon - suministro de agua para Llanfairfechan, Dwygyfylchi y Penmaenmawr
• Llyn Arenig Fach
• Llyn Arenig Fawr - suministro de agua para la ciudad de Bala
• Llynnau Barlwyd - suministro a la cantera de pizarra Llechwedd
• Llyn Bodlyn - suministro de agua a Barmouth.
• Llyn Bowydd - suministro a las canteras de pizarra Blaenau Ffestiniog
• Llyn Cwm Corsiog - suministro para la cantera de pizarra Rhosydd (desusada)
• Llyn Cwellyn - suministro de agua a Bangor y partes del sur de Anglesey
• Marchlyn Mawr - embalse de cabecera para el sistema hidroeléctrico de la central eléctrica Dinorwig.
• Llyn Peris
• Llyn Padarn - parte del sistema hidroeléctrico Dinorwig
• Llyn Stwlan - construido para la central hidroeléctrica Ffestiniog
• Llyn Trawsfynydd - construido para la hidroeléctrica Maentwrog Estación de alimentación

• Taff Fawr embalses- una cadena de tres embalses que abastecen el valle de Rhondda y Taff y Cardiff con agua
  • Beacons Reservoir
  • Cantref Reservoir
  • también ver Llwyn-on Reservoir en Merthyr Tydfil
• Taff Fechan embalses - una cadena de cuatro embalses que también abastecen el valle de Taff y Cardiff con agua
  • Alto Neuadd Reservoir
  • Reservoir de Neuadd inferior
  • Doly y gaer Reservoir
  • Pontsticill Reservoir
• Elan Valley Reservoirs - un grupo de embalses que suministran Birmingham y partes de la conurbación West Midlands con agua potable
  • Claerwen Reservoir
  • Craig-goch Reservoir
  • Penygarreg Reservoir
  • Garreg-ddu Reservoir
  • Caban-coch Reservoir
• Lago Vyrnwy (Llyn Efyrnwy) - suministra agua a la zona de Liverpool
• Talybont Reservoir
• Ystradfellte Reservoir
• Clywedog Reservoir (Llyn Clywedog)