110 projects changed: 93 reached a new stage, 90 milestones updated, 14 values revised, 2 statuses changed.
Battery Storage · Auchteraw, near Fort Augustus, Highland, Scotland, UK
Auchteraw
- Stage: Operational; fully energised and in operation (reported 3 September 2025)was: Operational (50MW/100MWh; energised September 2025)
- Next milestone: Ongoing operationwas: No further milestone published; operational since September 2025
Battery Storage · Near Buncrana (Trillick substation), County Donegal, Ireland
Ballynahone Energy Storage
- Stage: Third-party planning appeal lodged with An Coimisiún Pleanála 4 Dec 2024; no decision listedwas: Consented by Donegal County Council (November 2024); under appeal to An Coimisiún Pleanála, re-advertised July 2026
- Next milestone: An Coimisiún Pleanála appeal decisionwas: An Coimisiun Pleanala determination of the appeal
Battery Storage · South Kilvington, near Thirsk, North Yorkshire, England, UK
Bellmoor BESS
- Stage: In planning (application ZB24/02454/HYB submitted to North Yorkshire Council, January 2025)was: In planning
Battery Storage · Near Berkswell, Solihull/Warwickshire border, West Midlands, England, UK
Berkswell BESS
- Stage: Under construction since September 2026was: Under construction (200MW/857MWh; BW ESS/Penso Power with AIP Management investment)
- Next milestone: Commercial operation, expected Q4 2027was: Planning determination and build-out toward ~2026 commissioning
Battery Storage · Bicker Fen, near Bicker/Boston, Lincolnshire, England, UK
Bicker Fen 1 BESS
- Next milestone: In October 2026, Fidra Energy had yet to confirm the investment decision or a date for the site to start operating. Fidra lists Bicker Fen 1 and 2 as one combined site.was: Final investment decision expected 2026; operations targeted 2028
Battery Storage · Bicker Fen, near Bicker/Boston, Lincolnshire, England, UK
Bicker Fen 2 BESS
- Next milestone: In October 2026, Fidra Energy had yet to confirm the investment decision or a date for the site to start operating. Fidra lists Bicker Fen 1 and 2 as one combined site.was: Final investment decision expected 2027; operations targeted 2029
Battery Storage · Keith, Moray
Blackhillock Phase 2 (Zenobe)
- Stage: In construction; Phase 2 under way (Phase 1 in commercial operation since early 2025)was: In construction — Phase 2 under way
- Value: Part of Zenobē's £750m Scottish investment programmewas: Part of Zenobe's £750m+ Scottish programme
- Next milestone: Final commissioning and energisation Q1 to Q2 2027was: Phase 2 energisation — confirm date against Zenobe
Battery Storage · Bramford, near Ipswich, Suffolk, England, UK
Bramford BESS
- Stage: Consented by Mid Suffolk District Council (April 2025)was: Consented
- Next milestone: Construction; operation targeted for 2029was: Move to construction; operational target 2029
Battery Storage · Bramley, near Basingstoke, Hampshire, England, UK
Bramley BESS
- Stage: In commercial operation since February 2025was: Operational (since Feb 2025); owner/operator field should read BW ESS (Shell tolling)
- Next milestone: Ongoing operation under seven-year Shell tolling agreementwas: Ongoing operation under the seven-year Shell tolling agreement
Battery Storage · Brinsworth, Rotherham, South Yorkshire, England, UK
Brinsworth BESS
- Stage: Consented; planning approved unanimously by committee in 2025was: Consented
- Next milestone: Start of construction; energisation scheduled for mid-2028was: Start of construction; Root-Power gives mid-2028 for energisation
Battery Storage · Southfleet, Kent, England, UK
Broadditch BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Govan (near Ibrox), Glasgow, Scotland, UK
Broomloan Road BESS
- Stage: In construction; development began in late 2023was: In construction
- Next milestone: Energisation, scheduled by the developer for mid-2026was: Energisation; the developer's stated mid-2026 date has passed with no energisation announced
Battery Storage · Buckinghamshire (near Aylesbury), England, UK
Bumpers BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Camblesforth, near Selby, North Yorkshire, England, UK
Camblesforth BESS
- Stage: Planning application submitted (September 2024)was: In planning
Battery Storage · Capenhurst, near Chester, Cheshire West and Chester, England, UK
Capenhurst BESS
- Stage: Built; holds nine-year reactive power contract won in May 2020was: Operational
Battery Storage · Trafford, Greater Manchester
Carrington Storage, Trafford Low Carbon Energy Park
- Stage: In construction (from autumn 2025); financial close reachedwas: In construction (from autumn 2025)
- Next milestone: Energisation targeted for late 2027was: Energisation expected late 2027
Battery Storage · Luton, Bedfordshire, England, UK
Chapel Farm BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Great Barr, Walsall, West Midlands, England, UK
Chapel Lane BESS
- Stage: Allowed by planning inspector; Walsall Council's court challenge dismissed (Sep 2025)was: Consented on appeal; Walsall Council's High Court challenge dismissed September 2025, permission stands
- Next milestone: Construction startwas: Planning determination and construction
Battery Storage · Upminster, Essex (near M25), England, UK
Clay Tye BESS
- Stage: Operational; energised and launched March 2024was: Operational
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Graveney, near Faversham, Kent, England, UK
Cleve Hill Solar & Storage
- Stage: Solar (373MWdc) operating since Jul 2025; 150MW/300MWh battery under constructionwas: Solar park operational since July 2025; 150MW battery storage under construction
- Value: Not disclosedwas: ~£450 million (construction)
- Next milestone: Battery commercial operation, estimated 2026was: Completion of the 150MW battery storage system; the developer's stated early 2026 completion has passed with no completion announced
Battery Storage · Coalburn, South Lanarkshire, Scotland, UK
Coalburn 1 BESS
- Stage: In commercial operation (announced 12 August 2026)was: Operational
Battery Storage · Near Lesmahagow / Coalburn, South Lanarkshire, Scotland, UK
Coalburn BESS
- Stage: Under construction (started 2026, about 18 months)was: Active confirmed: financial close 18 Jun 2026 AND preparatory site works begun per Zenobe; main construction from Jul 2026. Naming fix: Zenobe calls it 'Coalburn' (Alcemi/CIP's is the separate project)
- Next milestone: Operational in 2027was: Complete construction; expected commercial operation mid-2027
Battery Storage · Cockenzie, East Lothian, Scotland, UK
Cockenzie
- Stage: Under construction; financial close May 2026was: Under construction (construction starting immediately per GRID RNS; grid connection planned 2027)
- Next milestone: Target energisation H1 2028was: Deal completion then construction start
Battery Storage · Hurstpierpoint, West Sussex, England, UK
Contego BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Coolkeeragh, Foyle Port, near Londonderry, County Londonderry, Northern Ireland, UK
Coolkeeragh BESS
- Stage: Consented (2-hour scheme); revised four-hour application submitted to Derry City and Strabane District Council in November 2025was: Consented; revised planning application for a four-hour design submitted November 2025
- Value: Not disclosedwas: Over £100 million (with Magherafelt)
- Next milestone: Council decision on the revised application; construction and operation would take about 9 to 12 months if approvedwas: Decision by Derry City and Strabane District Council on the revised four-hour application
Battery Storage · Willingham by Stow, near Gainsborough, Lincolnshire, England, UK
Cottam Solar & Storage
- Stage: Consented (DCO granted 5 Sep 2024)was: Consented (DCO granted Sep 2024)
Battery Storage · Coupar Angus, Perth and Kinross, Scotland, UK
Coupar Angus
- Next milestone: Continued operationwas: Ongoing operation
Battery Storage · Near Thurso (Dounreay), Caithness, Highland, Scotland, UK
Dounreay BESS
- Stage: Construction began in May 2025 after planning permission in January 2025was: In construction
- Next milestone: Go-live, expected by the developer in mid-2026was: Commissioning; the developer's stated mid-2026 go-live has passed with no energisation announced
Battery Storage · Dunnstown, near Kilcullen, County Kildare, Ireland
Dunnstown BESS
- Stage: Consented by An Bord Pleanala (October 2022)was: Consented
- Value: EUR 140 millionwas: £122 million (~€140 million)
- Next milestone: Grid connection, then construction startwas: Securing grid connection, then construction start
Battery Storage · Dunsinane, Dundee, Scotland, UK
Dunsinane Battery Storage
- Stage: Operational; began commercial operations in April 2023was: Operational
- Next milestone: Continued operation with EDF as trading and optimisation partnerwas: Continued operation with EDF route-to-market
Battery Storage · East Claydon (East Claydon substation), Buckinghamshire, England, UK
East Claydon Storage
- Next milestone: Construction startwas: Progress towards construction and financial close
Battery Storage · Eccles, Scottish Borders
Eccles BESS (Zenobe)
- Stage: Construction largely complete; testing and commissioning to followwas: Construction largely complete — commercial operation was due June 2026
- Value: Not disclosedwas: £220m
- Next milestone: Operation expected in 2027was: Confirm whether the site has entered commercial operation. Zenobe's stated June 2026 commercial-operation date has passed and no confirmation of energisation was found on 8 Sep 2026 — if it is live, this entry moves off the active-build list.
Battery Storage · Enderby, Leicestershire, England, UK
Enderby
- Stage: Operational; augmented from 1-hour to 2-hour duration (50 MW / 100 MWh), completed by August 2025was: Operational
- Next milestone: Continued operationwas: Augmentation complete; ongoing 2-hour operation
Battery Storage · Aghada, Cork Harbour, County Cork, Ireland
ESB Aghada BESS (Phase 1)
- Stage: Operational; launched in 2022 as ESB's first battery storage sitewas: Operational
- Next milestone: Continued operationwas: Ongoing operation and grid services
Battery Storage · Aghada, Cork Harbour, County Cork, Ireland
ESB Aghada BESS (Phase 2)
- Stage: Operational; officially opened on 15 November 2024was: Operational
- Value: Part of ESB's investment of up to €300m in battery storage across Dublin and Corkwas: Part of ESB's ~€300m battery investment
- Next milestone: Continued operation providing fast-acting storage for grid stabilitywas: Ongoing operation and grid/DS3 services
Battery Storage · Kylemore Road, Ballyfermot/Inchicore, Dublin, Ireland
ESB Kylemore BESS
- Stage: Operational since 2023was: Operational
Battery Storage · Poolbeg peninsula, Ringsend, Dublin, Ireland
ESB Poolbeg BESS
- Stage: Operational since late November 2023; officially launched February 2024was: Operational
- Value: Part of ESB's investment of up to €300m in battery projectswas: Part of ESB's ~€300m battery investment
- Next milestone: Continued operation providing fast-acting storage for grid stabilitywas: Ongoing EirGrid grid/DS3 system services
Battery Storage · South Wall / Pigeon House, Poolbeg, Dublin, Ireland
ESB South Wall BESS
- Stage: Operational since 2023was: Operational
Battery Storage · Farnham, Surrey, England, UK
Farnham BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Ferrybridge, near Knottingley, West Yorkshire, England, UK
Ferrybridge BESS
- Stage: Fully operational (March 2026); construction began August 2023was: Operational
- Next milestone: Ongoing operation supporting grid flexibility and system resiliencewas: Ongoing commercial dispatch and grid balancing
Battery Storage · Cuerdley, near Widnes/Warrington, Cheshire, England, UK
Fiddler's Ferry BESS
- Stage: In construction since early 2024was: In construction
- Next milestone: Completion and commissioningwas: Commissioning and grid energisation
Battery Storage · Sandridge, near Melksham, Wiltshire, England, UK
Foresight Sandridge BESS
- Stage: Commercial operation began in Q4 2025was: Operational
- Value: Not disclosedwas: Up to £12.7 million (50/50 with JLEN)
Battery Storage · Gerrards Cross, Buckinghamshire, England, UK
Gerrards Cross
- Stage: Operational (opened 2024)was: Operational
- Next milestone: Ongoing grid-balancing operationwas: Ongoing merchant and grid-balancing operation
Battery Storage · Glassenbury, near Cranbrook, Kent, England, UK
Glassenbury
- Stage: Operational; augmented to 50MW/110MWh, re-energised April 2026 and trading again since 20 May 2026was: Operational (augmented and re-energised Apr 2026: 50MW/38MWh -> 50MW/110MWh)
Battery Storage · Gorman, near Wilkinstown/Navan, County Meath, Ireland
Gorman BESS
- Stage: Operational; started up June 2022was: Operational
- Value: EUR 28 millionwas: ~€28 million
- Next milestone: Continued DS3 service to EirGrid under a six-year arrangementwas: Continued DS3 frequency-regulation service
Battery Storage · Granborough, Buckinghamshire, England, UK
Granborough BESS
- Stage: At advanced development stage of the planning process (September 2024)was: In planning
Battery Storage · Grendon, near Northampton, Northamptonshire, England, UK
Grendon 1
- Next milestone: Continued operationwas: Ongoing operation
Battery Storage · Hams Hall, near Coleshill, North Warwickshire, England, UK
Hams Hall BESS
- Stage: Under construction (April 2026)was: Under construction (EDF/BW ESS; commercial operation expected Q4 2026)
- Next milestone: Phase 1 commercial operation, expected Q4 2026was: Financial close and construction; targeted commissioning c.2026
Battery Storage · Near Carlisle, Cumbria (location indicative), England, UK
Harker BESS
- Stage: Consented (planning permission granted October 2023); initial enabling works from August 2026was: Consented / pre-construction
- Next milestone: Site mobilisation in Q1 2027; energisation expected in 2028; commercial operation expected late 2028 or early 2029was: Main construction mobilisation in Q1 2027; energisation expected in 2028; commercial operation in late 2028 or early 2029
Battery Storage · Harker, near Carlisle, Cumbria, England, UK
Harker BESS (Recurrent Energy)
- Stage: Consented (Cumberland Council, June 2024)was: Consented
- Next milestone: Construction anticipated from Q4 2029, subject to grid connection datewas: Construction anticipated from Q4 2029 unless an earlier grid connection date is agreed
Battery Storage · Murton, near Seaham, County Durham, England, UK
Hawthorn Pit BESS (Harmony)
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Near South Hetton, County Durham, England, UK
Hawthorn Pit BESS (Zenobe)
- Stage: In planning (application DM/26/01837/FPA being considered by Durham County Council)was: In planning (application submitted)
- Next milestone: Determination by Durham County Council; earliest construction 2029was: Decision by Durham County Council on application DM/26/01837/FPA. No decision date has been published. Earliest construction start is 2029.
Battery Storage · Heysham, Lancashire, England, UK
Heysham Energy Storage Project
- Stage: Consented (approved by Lancaster City Council, 28 November)was: Consented
- Next milestone: Construction startwas: Commence construction to retain connection queue position
Battery Storage · Poole, Dorset, England, UK
Holes Bay BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Fife (near Newburgh/Abernethy), Scotland, UK
Jamesfield BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Lisnunnan Road, Kells, County Antrim, Northern Ireland, UK
Kells (Lisnunnan Road) BESS
- Stage: Consented by Antrim and Newtownabbey Borough Council on 16 February 2026was: Consented
- Next milestone: Construction startwas: Financing/construction; grid connection in Kells cluster
Battery Storage · Kells, County Antrim, Northern Ireland, UK
Kells BESS (ABO Energy)
- Stage: Commissioned October 2022was: Operational
- Next milestone: Ongoing grid-balancing services for EirGrid and SONIwas: Ongoing grid-services operation
Battery Storage · Kilmarnock (south of the town), East Ayrshire, Scotland, UK
Kilmarnock South BESS
- Stage: Operational (commercial operations began January 2026)was: Operational (commercial operations began 21 Jan 2026)
- Next milestone: Ongoing operation, including stability serviceswas: Entry into commercial operation (targeted late 2025/early 2026)
Battery Storage · Kilroot Power Station, Carrickfergus, County Antrim, Northern Ireland, UK
Kilroot BESS
- Stage: Commissioned in 2015was: Operational
- Next milestone: Planned 100 MW energy storage array adjacent to Kilrootwas: Advancement of proposed 100+MW expansion
Battery Storage · Lister Drive, Tuebrook, Liverpool, Merseyside, England, UK
Lister Drive
- Stage: Conditionally acquired by GRID in May 2026 (part of 777MW of new projects)was: Contracted - SPA signed 28 May 2026 (conditional acquisition by GRID); consented with Capacity Market contracts, Gate 2 connection Sep 2029, construction expected from early 2027; STP holds exclusivity on 25% stake
- Next milestone: Completion of acquisition and financingwas: GRID acquisition and financing then construction
Battery Storage · Harvey's Lane, Little Horsted, East Sussex (TN22 5QR), England, UK
Little Horsted BESS
- Stage: Pre-application (consultation held November to December 2025)was: In planning (pre-application)
Battery Storage · Lochgelly, Fife, Scotland, UK
Little Raith BESS
- Stage: Operational; energised October (year not stated in article)was: Operational
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · Magherafelt, Mid Ulster, County Londonderry, Northern Ireland, UK
Magherafelt BESS
- Stage: Consented (2-hour scheme); revised 4-hour application submitted to Mid Ulster Council in October 2025was: Consented (2-hour scheme), revised 4-hour application under determination
- Value: Not disclosedwas: Over £100 million (with Coolkeeragh)
- Next milestone: Council decision on the revised application; construction and operation would take about 9 to 12 months if approvedwas: Mid Ulster Council decision on the revised 4-hour application, then about 9 to 12 months of construction
Battery Storage · Minety, Wiltshire, England, UK
Minety BESS
- Stage: Operational; began trading in July 2021was: Operational
- Next milestone: Continued operationwas: Proposed 50MW site expansion
Battery Storage · North Yorkshire, England, UK
Monet's Garden
- Status: Livewas: Pipeline
- Stage: Under construction; financial close May 2026was: Consented/construction-ready - GRID acquisition completed Dec 2025, £141m senior debt concluded 26 May 2026, 25% STP JV equity completed 8 Jun 2026, construction due to start immediately; Gate 2 connection Jul 2027
- Next milestone: Target energisation H2 2027was: Deal completion then construction start
Battery Storage · East Rounton, North Yorkshire, England, UK
Mowbray BESS
- Stage: In planning (application ZB24/02455/HYB submitted to North Yorkshire Council, January 2025)was: In planning
- Next milestone: Council determination; construction expected to start in 2026 if approvedwas: Council determination (ZB24/02455/HYB); construction anticipated from 2026
Battery Storage · Mullavilly, near Tandragee, County Armagh, Northern Ireland, UK
Mullavilly BESS
- Stage: Operational (as at November 2021)was: Operational
- Next milestone: Ongoing operationwas: Ongoing grid-services optimisation
Battery Storage · Newport, South Wales, UK
Newport
- Stage: Operational; construction completed by Trina Storage and Clarke Energy (January 2025)was: Operational
- Next milestone: Commercial operation providing dynamic frequency response and wholesale arbitragewas: Full commercial dispatch across frequency and wholesale markets
Battery Storage · Eastchurch, Isle of Sheppey, Kent, England, UK
Old Rides BESS
- Stage: Consented (Swale Borough Council granted application 25/503466/FULL)was: Consented (Swale Borough Council, 21 May 2026)
Battery Storage · Oldham, Greater Manchester, England, UK
Oldham
- Stage: Operational (fully operational December 2022)was: Operational
- Next milestone: Ongoing operationwas: Ongoing grid-balancing operation
Battery Storage · Osgodby, near Selby, North Yorkshire, England, UK
Osgodby BESS
- Stage: Planning consent granted (reported January 2025)was: Consented
- Next milestone: Start of constructionwas: Financial close / start of construction
Battery Storage · Pembroke (Pembroke Net Zero Centre), Pembrokeshire, Wales, UK
Pembroke BESS
- Status: Pipelinewas: At tender
- Stage: Final investment decision taken December 2025; construction planned from H1 2026was: FID taken (Dec 2025); pre-construction - RWE: construction to start H1 2026, no site mobilisation evidenced
- Next milestone: Construction; commissioning H2 2028, subject to grid connectionwas: Construction from H1 2026; commissioning H2 2028
Battery Storage · Penwortham, near Preston, Lancashire, England, UK
Penwortham
- Stage: Operational (energised 2024)was: Operational
Battery Storage · Cottingham, near Hull, East Riding of Yorkshire, England, UK
Pillswood BESS
- Next milestone: Continued operationwas: Continued merchant operation and grid balancing services
Battery Storage · Radwell, near Baldock, Hertfordshire, England, UK
Radwell Bury BESS
- Stage: Consented by North Herts Council (Aug 2025)was: Consented
Battery Storage · Red Scar Business Park, Preston, Lancashire, England, UK
Red Scar
- Stage: Operational (49MW); scheduled to be taken offline during Q2 2026 for augmentationwas: Operational but scheduled offline Q2 2026 for augmentation (GRID Q1 2026 RNS); recheck next cycle
- Next milestone: Augmentation, then return to operationwas: Ongoing operation
Battery Storage · Newbuildings, County Londonderry, Northern Ireland, UK
RES Killymallaght BESS
- Stage: Application LA11/2024/0759/F submitted October 2024was: In planning
- Next milestone: Council planning decisionwas: Planning committee decision
Battery Storage · Near Rasharkin, County Antrim, Northern Ireland, UK
RES Machaire BESS
- Stage: Application submitted 2025; consultation responses still arriving October 2026was: In planning
- Next milestone: Causeway Coast and Glens Borough Council planning decisionwas: Planning decision
Battery Storage · Near Dromore, County Tyrone, Northern Ireland, UK
RES Shaneragh BESS
- Stage: Application LA10/2025/0003/F submitted January 2025was: In planning
- Next milestone: Fermanagh and Omagh District Council planning decisionwas: Planning determination
Battery Storage · Richborough (former Richborough power station, near Sandwich), Kent, England, UK
Richborough Energy Park BESS
- Stage: In operationwas: Operational
- Value: Not disclosedwas: Sold for c.£74 million (US$93m), 2023
Battery Storage · Rufford, near Ollerton, Nottinghamshire, England, UK
Rufford
- Stage: Operational (7MW); scheduled to be taken offline during Q2 2026 for augmentationwas: Operational but temporarily offline for augmentation (GRID Q1 2026 RNS); recheck next cycle
- Next milestone: Augmentation, then return to operationwas: Ongoing operation
Battery Storage · Salisbury, Wiltshire (adjacent to Salisbury substation), England, UK
Salisbury BESS
- Stage: Operational since April 2024 (SSE Renewables, 50MW/100MWh)was: Operational since April 2024 (50MW/100MWh, SSE Renewables; Harmony divested the consented site to SSE in Aug 2021)
- Next milestone: Ongoing operationwas: Start of construction (shovel-ready)
Battery Storage · Shannonbridge, County Offaly, Ireland
Shannonbridge B BESS
- Stage: Commissioned (reported June 2026)was: Operational
- Value: Not disclosedwas: ~€130 million
- Next milestone: Commercial operation under EirGrid DS3 system serviceswas: Full DS3 inertial and frequency-response service delivery
Battery Storage · Lerwick, Shetland, Scotland, UK
Shetland BESS
- Stage: Main construction complete; electrical installation under way (Jun 2026)was: Main construction complete; electrical installation and cold commissioning imminent (Zenobe, Jun 2026)
Battery Storage · Shilton Lane, near Glasgow (Bishopbriggs/Cumbernauld area), Scotland, UK
Shilton Lane
- Stage: Operational (commissioned 2025)was: Operational
- Next milestone: Ongoing operationwas: No further milestones published as of October 2026
Battery Storage · Skeeby, near Richmond, North Yorkshire, England, UK
Skeeby BESS
- Stage: Energised (reported 20 August 2026), ready to enter commercial operationwas: In construction
- Next milestone: Commercial operationwas: Energisation / commissioning (expected 2026)
Battery Storage · South Shields, Tyne and Wear, England, UK
South Shields
- Stage: Operational (35MW)was: Operational
Battery Storage · Quidhampton, near Salisbury, Wiltshire, England, UK
SSE Salisbury BESS
- Stage: Fully operational since April 2024was: Operational
Battery Storage · Cushaling, County Offaly, Ireland
Statkraft Cushaling BESS
- Stage: Operational; officially opened February 2026was: Operational
- Next milestone: Ongoing operation; annual EUR 25,000 Sustainability Fund to begin in 2026was: Benchmark for further long-duration BESS in Ireland
Battery Storage · Tarbert, County Kerry, Ireland
Statkraft Kelwin-2 BESS
- Stage: Operational since 2021was: Operational
- Next milestone: Ongoing operationwas: Ongoing reserves/grid services to EirGrid
Battery Storage · Kilathmoy, Kerry-Limerick border, Ireland
Statkraft Kilathmoy BESS
- Stage: Operational since April 2020was: Operational
- Next milestone: Ongoing DS3 System Services to EirGridwas: Ongoing reserves/grid services to EirGrid
Battery Storage · South of Pyworthy substation, near Holsworthy, Devon, England, UK
Stoneworthy BESS
- Stage: Acquired by Eelpower Energy from RES (May 2026)was: Consented / pre-construction
- Next milestone: Construction scheduled to begin in 2027; commercial operations expected in 2028was: Start of construction in 2027; operations targeted 2028
Battery Storage · Stony Stratford, Milton Keynes, Buckinghamshire, England, UK
Stony BESS
- Stage: Augmentation from 1-hour to 2-hour under way, on track (Jul 2026)was: Operational
- Next milestone: Augmentation complete by December 2026was: Ongoing grid-services and trading optimisation
Battery Storage · Straboe, near Tullow, County Carlow, Ireland
Straboe Solar & Storage
- Stage: Planning approval secured (announced 2 Jul 2026)was: Consented
Battery Storage · Sundon (beside Sundon National Grid substation), Central Bedfordshire, England, UK
Sundon Storage
- Stage: Consented Jan 2026; part of Ofgem's LDES scheme, under considerationwas: Consented (Jan 2026) and awarded Ofgem LDES cap-and-floor support in Window 1 (30 Jun 2026); pre-construction, full operation targeted 2030
- Next milestone: Construction start later this decade; fully operational by 2030was: Construction later this decade; full operation targeted 2030
Battery Storage · Wilton International, Redcar, Tees Valley, England, UK
Teesside GigaPark
- Stage: Consented (planning consent in place)was: Consented / pre-construction
- Value: Not disclosedwas: £1 billion
- Next milestone: Construction start planned 2027; grid connection targeted late 2028 or early 2029was: Construction start planned 2027; grid connection targeted late 2028/early 2029
Battery Storage · Thorpe Marsh (former power station site), near Barnby Dun, Doncaster
Thorpe Marsh BESS (Fidra Energy)
- Stage: Financial close reached (September 2025); construction set to begin immediatelywas: In construction
- Next milestone: Operational from mid-2027was: Operational mid-2027
Battery Storage · Thurcroft, near Rotherham, South Yorkshire, England, UK
Thurcroft
- Next milestone: Continued operationwas: Potential augmentation to 2-hour duration
Battery Storage · Flintshire, Wales, UK
Tyn Y Coed BESS
- Stage: In planning: application FUL/000450/25 validated Jun 2025was: In planning
- Next milestone: Determination by Flintshire County Councilwas: Planning determination
Battery Storage · Uskmouth, Newport, Wales, UK
Uskmouth BESS
- Stage: Under construction since November 2023was: In construction
- Next milestone: Energisation and commercial operation, expected 2026was: Energisation and commercial operation
Battery Storage · near Wakefield (adjacent to Wakefield B substation), West Yorkshire, England, UK
Wakefield B BESS
- Stage: Consented on appeal 2 July 2026 (APP/X4725/W/25/3368025); pre-constructionwas: Consented on appeal - Wakefield Council refusal of the 99.9MW Heath scheme overturned by the Planning Inspectorate on 2 July 2026; pre-construction
- Next milestone: Discharge of conditions and start of construction (permission requires start within three years)was: Planning determination
Battery Storage · Bradford, West Yorkshire, England, UK
West Bradford (Bradford West)
- Stage: Energised and operational (reported August 2025)was: Operational
- Next milestone: Ongoing operationwas: Ramp to full commercial output
Battery Storage · West Burton, near Retford, Nottinghamshire, England, UK
West Burton C BESS
- Stage: Financial close reached (17 Jul 2026); construction due to start later in 2026was: Consented; 10-year tolling agreement with Drax signed for 250MW/500MWh (Jan 2026); FID expected by Q3 2026, commercial operation target moved to 2028
- Value: £231m loan facilitieswas: Not disclosed
- Next milestone: Construction start; fully operational in 2028was: Final investment decision expected H1 2026; operations targeted Q4 2027
Battery Storage · West Didsbury, Manchester, Greater Manchester, England, UK
West Didsbury
- Stage: Operational; upgraded from 1-hour to 2-hour durationwas: Operational
- Next milestone: Ongoing operationwas: Augmentation complete; ongoing 2-hour operation
Battery Storage · Whitebirk, Blackburn, Lancashire, England, UK
Whitebirk
- Stage: Operational; energised early March 2026 (25MW/50MWh)was: In construction
- Next milestone: Ongoing operation, optimised on Field's Gaia platformwas: Delivery of Envision units and grid energisation
Battery Storage · Eaglesham Moor, near Eaglesham, East Renfrewshire, Scotland, UK
Whitelee BESS
- Stage: Operational since October 2022was: Operational
- Next milestone: Ongoing operation, providing services to the National Gridwas: Ongoing operation in balancing/frequency markets
Battery Storage · Wickham Market, Suffolk, England, UK
Wickham Market
- Next milestone: Continued operationwas: Ongoing trading/optimisation under Statkraft PPA
Battery Storage · Wishaw, North Lanarkshire, Scotland, UK
Wishaw BESS
- Stage: Constructed and connected directly to the transmission system; provides Constraint Management Service to the ESOwas: Operational
- Next milestone: Continued constraint management serviceswas: Operational, delivering constraint-management services
Battery Storage · Wormald Green, near Ripon, North Yorkshire, England, UK
Wormald Green BESS
- Next milestone: Continued operationwas: Continued merchant operation
Battery Storage · York, North Yorkshire, England, UK
York
- Stage: Operational (energised 2024)was: Operational