| Walpole Flexible Generation Project | England | Walpole Flexible Generation Limited | 2,000 MW |
| Teesworks Battery Storage Project | England | Teesworks Ltd, NatPower UK | 1,000 MW |
| Auchentiber Road - Battery Energy Storage System | Scotland | Apatura GPC 700 Limited | 700 MW |
| Thurrock Flexible Generation Plant | England | Thurrock Power | 600 MW |
| Braston New Energy | Scotland | New Energy Partnership | 500 MW |
| Eggborough Power Station, Selby Road - Battery Storage | England | Eggborough Power Limited | 500 MW |
| Gretna Green Battery Storage | Scotland | Gresham House Devco Pipeline | 456 MW |
| Blackdyke Farm, Blackford - Battery Storage | England | Innova Renewables | 400 MW |
| Cellarhead Substation, Rownall Road - Battery Energy Facility | England | C&S Energy Limited | 400 MW |
| Elstree Substation, Hilfield Lane - Battery Energy Storage | England | Chiltern Renewables Hockliffe Limited | 400 MW |
| Kincardine Grid Services Complex - Energy Storage Facility | Scotland | Amp Energy | 400 MW |
| Bury Farm, Dickens Lane - Battery Energy Storage System | England | Regener8 Power Limited | 350 MW |
| Blackdyke Farm, Blackford - Battery Storage | England | Novus Renewable Services Limited +1 | 340 MW |
| Stargoose Farm - Battery Storage | England | Solarcentury +1 | 312 MW |
| Dartford BESS - Battery Energy Storage System | England | Clearstone Energy | 300 MW |
| Forty Acre Wood, The Street - Battery Energy Storage System | England | Greenfield Energy Developments Limited | 300 MW |
| Foxhounds Lane, Southfleet - Battery Storage | England | EcoDev Group Limited | 300 MW |
| Kilmarnock South Substation - Battery storage | Scotland | Zenobē | 300 MW |
| Mossmorran Battery Storage | Scotland | Gresham House Devco Pipeline | 300 MW |
| Culham Science Centre | England | CESL UK Atomic Energy Authority | 250 MW |
| Station Road, Fiddlers Ferry - Battery Energy Storage | England | Net Zero One Ltd | 250 MW |
| Armitage Road, Armitage - Battery Energy Storage | England | Galileo Empower | 200 MW |
| Astwood Lane, Feckenham - Battery Storage | England | Immersa | 200 MW |
| Cargo Road, Cargo - Battery Storage | England | Immersa | 200 MW |
| Earthcott Green Farm, Earthcott Green - Battery Energy Storage | England | Immersa | 200 MW |
| Heysham Energy Storage Project | England | Kona Energy Limited | 200 MW |
| North Cray Road - Battery Energy Storage System | England | Firstway Energy | 200 MW |
| Scoop Hill Wind Farm | Scotland | Community Windpower | 200 MW |
| Todhills and Westlinton - Harker Battery Energy Storage Facility | England | Windel Energy | 200 MW |
| Worset Lane - Battery Energy Storage System | England | Clearstone Energy | 200 MW |
| Buckland Battery Storage | England | REWE 5 Limited | 150 MW |
| Cholmondeley Road - Battery Storage | England | P3P Partners LLP | 150 MW |
| Cleve Hill Solar Project | England | Quinbrook Infrastructure Partners | 150 MW |
| Kirkhaw Lane - Battery Storage Energy | England | SSE Enterprise Contracting | 150 MW |
| Norrington Gate Farm, Broughton Gifford - Battery Energy Storage Facility | England | ADV 003 Limited | 150 MW |
| Stammery Hill - Battery Energy Storage System | England | Clearstone Energy | 150 MW |
| Clough Road - Battery Energy System | England | GAM Capital Limited | 130 MW |
| Stoke Lane - Battery Energy Storage | England | FPC Electric Land Limited | 130 MW |
| Pound Road, Hawkchurch - Battery Energy Storage | England | Enso Green Holdings B Limited | 120 MW |
| Pound Road, Hawkchurch - Battery Energy Storage System | England | Enso Energy Limited | 120 MW |
| Frog Lane, Little London - Battery Energy Storage | England | British Solar Renewables | 115 MW |
| Hickling Lane, Swainsthorpe -Battery Storage | England | EDF Energy Renewables | 114 MW |
| Kinmuck Battery Energy Storage | Scotland | Island Green Power +1 | 105 MW |
| Bean Lane - Battery Energy Storage Facility | England | Anglo Es Bean Lane Limited | 104 MW |
| Battlesbridge Bypass, Rettendon - Battery Storage | England | Pelagic Energy | 100 MW |
| Bowenhurst Farm, Mill Lane - Battery Energy Storage | England | Bowenhurst BESS Limited | 100 MW |
| Bradford West, Harrop Lane, Wilsden - Battery Storage | England | 24 Power Limited | 100 MW |
| Hales Lane - Battery Storage Facility | England | Aura Power | 100 MW |
| Hillside Farm, Lancaster Road - Battery Storage | England | Hamilton March | 100 MW |
| Hook Street - Energy Storage Compound | England | Immersa | 100 MW |
| Kilwinning Battery Storage | Scotland | Apatura | 100 MW |
| Kirkhaw Lane - Battery Storage | England | Vox Energy Limited +1 | 100 MW |
| Lime Lane, Pelsall - Battery Energy Storage System | England | Elgin Energy EsCo | 100 MW |
| Lower road, Garsington - Energy Storage System | England | Net Zero Twenty One Ltd | 100 MW |
| Minchens Lane Battery Storage Facility | England | Penso Power | 100 MW |
| Morris Marble Works, Cross Lane - Battery Energy Storage | England | Bluefield Renewable Developments Limited | 100 MW |
| National Grid Electricity Substation, Capenhurst Lane - Battery Storage | England | Zenobē | 100 MW |
| New Road, Featherstone - Battery Storage | England | Chiltern Renewables Hockliffe Limited | 100 MW |
| Newburn Bridge Road - Battery Storage Facility | England | The Renewables Infrastructure Group Limited | 100 MW |
| North Walpole, St Peter - Battery Energy Storage | England | Roc Noir Limited | 100 MW |
| Orchard Farm, Langley Road - Battery Energy Storage System | England | RE Projects Development | 100 MW |
| Penn Croft Farm, Crondall - Battery Energy Storage Facility | England | Fleet BESS Limited & SSE Energy Solutions Limited | 100 MW |
| Shuttleworth House, Higher Shuttleworth - Battery Energy Storage System | England | Renewable Connections Developments Limited | 100 MW |
| St Dennis - Battery Energy Storage | England | Pivot Power +1 | 100 MW |
| Third Energy UK Gas Limited - Battery Energy Storage | England | Third Energy | 100 MW |
| Tilbury Energy Centre | England | RWE Generation | 100 MW |
| Tyddyn Forgan, Llanddeiniolen - Energy Storage System | Wales | Firstway Energy +1 | 100 MW |
| Walpole St Andrew - Battery storage | England | Alfred Energy Limited | 100 MW |
| Walpole Sub Station, Walpole Bank - Battery Storage | England | Henry Energy Limited | 100 MW |
| Walpole Sub Station, Walpole Bank - Battery Storage | England | Henry Energy Limited | 100 MW |
| Woodford Road - Battery Energy Storage System | England | Pegasus Group | 100 MW |
| Dollymans Storage | England | Dollymans Storage +1 | 100 MW |
| Glyn Rhonwy Pumped Storage | Wales | Snowdonia Pumped Hydro | 99.9 MW |
| Lakeside Energy Storage Facility | England | Tag Energy UK | 99.9 MW |
| Landulph Substation, Landulph - Battery Storage | England | NZED Projectco 2 Limited | 99.9 MW |
| Linton Court Farm, Highnam - Battery storage | England | STOR 136 Limited | 99.9 MW |
| Lower Larks Farm - Battery storage | England | IPP Cero Generation | 99.9 MW |
| Padiham - Battery Energy Storage | England | Energi Generation | 99.9 MW |
| Seion, Pentir - Battery Energy Storage System | Wales | Brockwell Storage & Solar Limited | 99.9 MW |
| South Thinford Lane, Thinford - Energy Storage | England | Renewable Energy Systems | 99.9 MW |
| Adj New House Farm, Luzlow Lane - Battery Energy Storage | England | YLEM South Limited | 99 MW |
| Hogshaw Road, Granborough - Battery Energy Storage System | England | Root Power Limited | 99 MW |
| Skelton Grange Battery Storage Facility | England | Catalyst Capital LLP | 99 MW |
| Winterton Road - Battery Energy Storage | England | Newton Energi Limited | 95 MW |
| Ipswich Road, Cardiff - Battery Storage | Wales | Green Frog Power 214 Limited | 93 MW |
| Land Southwest of Hightown Drove, Burwell - Battery Energy Storage System | England | Grenergy Renewables UK Limited | 90 MW |
| Green Lane, Thurcroft - Battery Energy Storage Facility | England | Newton Energi Limited | 85 MW |
| Rochdale Road, Edenfield - Battery Storage | England | Cubico Limited | 85 MW |
| Aikengall II Community Wind Farm Battery | Scotland | Community Windpower | 80 MW |
| Barlow Road, Barlow Road - Battery Storage | England | Vox Energy Limited | 80 MW |
| Midland Road - Battery Energy Storage | England | — | 80 MW |
| Netherlands Way - Battery Energy Facility | England | Volta Energy Group | 80 MW |
| Newlands Farm, Crewkerne Road - Battery Energy Storage | England | Sky UK Development Limited | 80 MW |
| Old Trent Road, Beckingham - Battery Storage Facility | England | Recell Energy | 80 MW |
| Stony Energy Storage Facility | England | Gore Street Energy Storage Fund | 79.9 MW |
| Mary Avenue, Birtley - Battery Energy Storage | England | Fig Power | 71 MW |
| Calder Works, Burnley Road - Battery Energy Storage System | England | Sirius EcoDev Limited | 70 MW |
| Oaklands Farm, New Road - Battery Energy Storage | England | Conrad Energy II Limited | 70 MW |
| Sandyforth Farm, Ashton Road - Battery Energy Storage | England | UKGEA | 70 MW |
| Middleton Road - Linwood Battery Energy Storage System | Scotland | Bluestone Energy | 69 MW |