{"name":"CECadence GB battery fleet & pipeline registry","generated_at":"2026-07-24T07:49:05Z","code_version":"ed492e4","posture":"Registry-derived facts only: status, MW, duration class, TNUoS zone, commissioning year. No revenue figures appear in this dataset; measured revenue is published on the quarterly index report and the per-asset dataset.","sources":[{"name":"Elexon BMU register","role":"the authoritative BM Unit register (identity and registered capacities for the BM-registered battery fleet)"},{"name":"NESO EAC auction results","role":"frequency-response/reserve auction participation with technologyType 'Batteries' — how battery BMUs are identified (battery BMUs are not identifiable from the register's own fuel type)"},{"name":"NESO Capacity Market register","role":"storage duration bands ('Storage' .. 'Storage (Duration 12h)') and CM capacities, joined by postcode (a fuzzy join, disclosed per unit)"},{"name":"Curated seed registry","role":"named sites, statuses, commissioning years and approximate coordinates, compiled June 2026 from public sources (operator announcements, trade-press coverage, NESO TEC register context)"}],"sites":[{"site_id":"coalburn_1","name":"Coalburn 1","operator":"Copenhagen Infrastructure Partners","status":"operational","power_mw":500.0,"energy_mwh":1000.0,"duration_class":"2h","tnuos_zone":"Z4","commission_year":2025,"latitude":55.59,"longitude":-3.89},{"site_id":"kilmarnock_south","name":"Kilmarnock South","operator":"Zenobe","status":"operational","power_mw":300.0,"energy_mwh":600.0,"duration_class":"2h","tnuos_zone":"Z4","commission_year":2025,"latitude":55.59,"longitude":-4.49},{"site_id":"blackhillock_1","name":"Blackhillock 1","operator":"Zenobe","status":"operational","power_mw":200.0,"energy_mwh":400.0,"duration_class":"2h","tnuos_zone":"Z2","commission_year":2024,"latitude":57.62,"longitude":-3.05},{"site_id":"ferrybridge","name":"Ferrybridge","operator":"SSE","status":"operational","power_mw":150.0,"energy_mwh":300.0,"duration_class":"2h","tnuos_zone":"Z8","commission_year":2025,"latitude":53.71,"longitude":-1.28},{"site_id":"trafford_1","name":"Trafford BESS 1","operator":"Carlton Power","status":"operational","power_mw":104.0,"energy_mwh":208.0,"duration_class":"2h","tnuos_zone":"Z7","commission_year":2025,"latitude":53.45,"longitude":-2.38},{"site_id":"bicker_fen","name":"Bicker Fen","operator":"BW ESS / Penso Power","status":"operational","power_mw":100.0,"energy_mwh":330.0,"duration_class":"4h","tnuos_zone":"Z10","commission_year":2025,"latitude":52.93,"longitude":-0.13},{"site_id":"bramley","name":"Bramley","operator":"TagEnergy","status":"operational","power_mw":100.0,"energy_mwh":200.0,"duration_class":"2h","tnuos_zone":"Z14","commission_year":2025,"latitude":51.33,"longitude":-1.05},{"site_id":"capenhurst","name":"Capenhurst","operator":"Zenobe","status":"operational","power_mw":100.0,"energy_mwh":107.0,"duration_class":"1h","tnuos_zone":"Z9","commission_year":2022,"latitude":53.26,"longitude":-2.95},{"site_id":"minety","name":"Minety","operator":"Shell / CNTE","status":"operational","power_mw":100.0,"energy_mwh":100.0,"duration_class":"1h","tnuos_zone":"Z14","commission_year":2021,"latitude":51.61,"longitude":-1.98},{"site_id":"clay_tye","name":"Clay Tye","operator":"Statera Energy","status":"operational","power_mw":99.0,"energy_mwh":198.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2023,"latitude":51.53,"longitude":0.28},{"site_id":"richborough","name":"Richborough Energy Park","operator":"Pacific Green","status":"operational","power_mw":99.0,"energy_mwh":99.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2023,"latitude":51.3,"longitude":1.35},{"site_id":"pillswood","name":"Pillswood","operator":"Harmony Energy","status":"operational","power_mw":98.0,"energy_mwh":196.0,"duration_class":"2h","tnuos_zone":"Z8","commission_year":2022,"latitude":53.8,"longitude":-0.33},{"site_id":"stony","name":"Stony","operator":"Gore Street Capital","status":"operational","power_mw":80.0,"energy_mwh":80.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2024,"latitude":52.06,"longitude":-0.86},{"site_id":"burwell","name":"Burwell","operator":"SMS plc","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z12","commission_year":2023,"latitude":52.27,"longitude":0.32},{"site_id":"coventry","name":"Coventry","operator":"EDF Renewables / Pivot Power","status":"operational","power_mw":50.0,"energy_mwh":100.0,"duration_class":"2h","tnuos_zone":"Z10","commission_year":2024,"latitude":52.41,"longitude":-1.51},{"site_id":"enderby","name":"Enderby","operator":"Gore Street Capital","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z10","commission_year":2023,"latitude":52.59,"longitude":-1.21},{"site_id":"energy_superhub_oxford","name":"Energy Superhub Oxford","operator":"EDF Renewables / Pivot Power","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z14","commission_year":2022,"latitude":51.72,"longitude":-1.21},{"site_id":"ferrymuir","name":"Ferrymuir","operator":"Gore Street Capital","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z5","commission_year":2023,"latitude":56.0,"longitude":-3.4},{"site_id":"hawthorn_pit","name":"Hawthorn Pit","operator":"Harmony Energy","status":"operational","power_mw":50.0,"energy_mwh":100.0,"duration_class":"2h","tnuos_zone":"Z6","commission_year":2024,"latitude":54.81,"longitude":-1.45},{"site_id":"kemsley","name":"Kemsley","operator":"EDF Renewables / Pivot Power","status":"operational","power_mw":50.0,"energy_mwh":100.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2023,"latitude":51.37,"longitude":0.74},{"site_id":"melksham","name":"Melksham","operator":"Eelpower","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z14","commission_year":2022,"latitude":51.37,"longitude":-2.14},{"site_id":"nursling","name":"Nursling","operator":"Penso Power","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z14","commission_year":2022,"latitude":50.94,"longitude":-1.47},{"site_id":"pelham","name":"Pelham","operator":"Statera Energy","status":"operational","power_mw":50.0,"energy_mwh":50.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2018,"latitude":51.93,"longitude":0.1},{"site_id":"sandwell","name":"Sandwell","operator":"EDF Renewables / Pivot Power","status":"operational","power_mw":50.0,"energy_mwh":100.0,"duration_class":"2h","tnuos_zone":"Z10","commission_year":2024,"latitude":52.52,"longitude":-2.01},{"site_id":"thurcroft","name":"Thurcroft","operator":"Gresham House","status":"operational","power_mw":50.0,"energy_mwh":75.0,"duration_class":"2h","tnuos_zone":"Z8","commission_year":2020,"latitude":53.39,"longitude":-1.26},{"site_id":"whitelee","name":"Whitelee","operator":"ScottishPower 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House","status":"operational","power_mw":49.0,"energy_mwh":74.0,"duration_class":"2h","tnuos_zone":"Z7","commission_year":2021,"latitude":53.79,"longitude":-2.65},{"site_id":"roosecote","name":"Roosecote","operator":"Centrica","status":"operational","power_mw":49.0,"energy_mwh":49.0,"duration_class":"1h","tnuos_zone":"Z7","commission_year":2018,"latitude":54.1,"longitude":-3.2},{"site_id":"west_burton_b","name":"West Burton B","operator":"EDF Renewables","status":"operational","power_mw":49.0,"energy_mwh":49.0,"duration_class":"1h","tnuos_zone":"Z10","commission_year":2018,"latitude":53.36,"longitude":-0.81},{"site_id":"bloxwich","name":"Bloxwich","operator":"Arenko","status":"operational","power_mw":41.0,"energy_mwh":41.0,"duration_class":"1h","tnuos_zone":"Z10","commission_year":2018,"latitude":52.62,"longitude":-2.0},{"site_id":"coupar_angus","name":"Coupar Angus","operator":"Gresham House","status":"operational","power_mw":40.0,"energy_mwh":40.0,"duration_class":"1h","tnuos_zone":"Z4","commission_year":2022,"latitude":56.55,"longitude":-3.27},{"site_id":"dollymans","name":"Dollymans","operator":"ESB","status":"operational","power_mw":40.0,"energy_mwh":40.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2021,"latitude":51.62,"longitude":0.52},{"site_id":"glassenbury","name":"Glassenbury","operator":"VLC Energy","status":"operational","power_mw":40.0,"energy_mwh":28.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2018,"latitude":51.1,"longitude":0.54},{"site_id":"lower_road","name":"Lower Road","operator":"Gore Street Capital","status":"operational","power_mw":40.0,"energy_mwh":40.0,"duration_class":"1h","tnuos_zone":"Z13","commission_year":2022,"latitude":51.63,"longitude":0.62},{"site_id":"stairfoot","name":"Stairfoot","operator":"Gresham House","status":"operational","power_mw":40.0,"energy_mwh":40.0,"duration_class":"1h","tnuos_zone":"Z8","commission_year":2020,"latitude":53.55,"longitude":-1.43},{"site_id":"port_of_tyne","name":"Port of Tyne","operator":"Gresham House","status":"operational","power_mw":35.0,"energy_mwh":35.0,"duration_class":"1h","tnuos_zone":"Z6","commission_year":2021,"latitude":54.98,"longitude":-1.45},{"site_id":"rusholme","name":"Rusholme","operator":"Harmony Energy","status":"operational","power_mw":35.0,"energy_mwh":70.0,"duration_class":"2h","tnuos_zone":"Z8","commission_year":2023,"latitude":53.71,"longitude":-0.95},{"site_id":"contego","name":"Contego","operator":"Harmony Energy","status":"operational","power_mw":34.0,"energy_mwh":68.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2021,"latitude":50.96,"longitude":-0.13},{"site_id":"field_newport","name":"Newport","operator":"Field Energy","status":"operational","power_mw":33.0,"energy_mwh":66.0,"duration_class":"2h","tnuos_zone":"Z11","commission_year":2024,"latitude":51.59,"longitude":-2.99},{"site_id":"byers_brae","name":"Byers Brae","operator":"Gresham House","status":"operational","power_mw":30.0,"energy_mwh":30.0,"duration_class":"1h","tnuos_zone":"Z5","commission_year":2021,"latitude":55.88,"longitude":-3.55},{"site_id":"legacy","name":"Legacy","operator":"Pulse Clean Energy","status":"operational","power_mw":30.0,"energy_mwh":60.0,"duration_class":"2h","tnuos_zone":"Z9","commission_year":2025,"latitude":52.98,"longitude":-3.06},{"site_id":"tynemouth","name":"Tynemouth","operator":"EDF Renewables","status":"operational","power_mw":25.0,"energy_mwh":25.0,"duration_class":"1h","tnuos_zone":"Z6","commission_year":2018,"latitude":55.02,"longitude":-1.46},{"site_id":"pen_y_cymoedd","name":"Pen y Cymoedd","operator":"Vattenfall","status":"operational","power_mw":22.0,"energy_mwh":16.0,"duration_class":"1h","tnuos_zone":"Z11","commission_year":2017,"latitude":51.7,"longitude":-3.58},{"site_id":"field_gerrards_cross","name":"Gerrards Cross","operator":"Field Energy","status":"operational","power_mw":20.0,"energy_mwh":40.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2023,"latitude":51.59,"longitude":-0.55},{"site_id":"field_oldham","name":"Oldham","operator":"Field Energy","status":"operational","power_mw":20.0,"energy_mwh":41.0,"duration_class":"2h","tnuos_zone":"Z7","commission_year":2022,"latitude":53.54,"longitude":-2.1},{"site_id":"hartlepool_field","name":"Hartlepool","operator":"Field Energy","status":"operational","power_mw":20.0,"energy_mwh":40.0,"duration_class":"2h","tnuos_zone":"Z6","commission_year":2023,"latitude":54.69,"longitude":-1.25},{"site_id":"cleator","name":"Cleator","operator":"VLC Energy","status":"operational","power_mw":10.0,"energy_mwh":7.0,"duration_class":"1h","tnuos_zone":"Z7","commission_year":2018,"latitude":54.52,"longitude":-3.52},{"site_id":"holes_bay","name":"Holes Bay","operator":"Harmony Energy","status":"operational","power_mw":7.5,"energy_mwh":15.0,"duration_class":"2h","tnuos_zone":"Z14","commission_year":2020,"latitude":50.73,"longitude":-2.0},{"site_id":"coalburn_2","name":"Coalburn 2","operator":"Copenhagen Infrastructure Partners","status":"construction","power_mw":500.0,"energy_mwh":1000.0,"duration_class":"2h","tnuos_zone":"Z4","commission_year":2027,"latitude":55.58,"longitude":-3.9},{"site_id":"thurrock","name":"Thurrock","operator":"Statera Energy","status":"construction","power_mw":450.0,"energy_mwh":900.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2027,"latitude":51.48,"longitude":0.3},{"site_id":"chickerell","name":"Chickerell","operator":"BW ESS / Penso Power","status":"construction","power_mw":400.0,"energy_mwh":800.0,"duration_class":"2h","tnuos_zone":"Z14","commission_year":2026,"latitude":50.63,"longitude":-2.51},{"site_id":"eccles","name":"Eccles","operator":"Zenobe","status":"construction","power_mw":400.0,"energy_mwh":800.0,"duration_class":"2h","tnuos_zone":"Z5","commission_year":2027,"latitude":55.67,"longitude":-2.23},{"site_id":"hams_hall","name":"Hams Hall","operator":"Fidra Energy","status":"construction","power_mw":350.0,"energy_mwh":700.0,"duration_class":"2h","tnuos_zone":"Z10","commission_year":2027,"latitude":52.53,"longitude":-1.71},{"site_id":"uskmouth","name":"Uskmouth","operator":"Quinbrook Infrastructure Partners","status":"construction","power_mw":230.0,"energy_mwh":460.0,"duration_class":"2h","tnuos_zone":"Z11","commission_year":2026,"latitude":51.55,"longitude":-2.98},{"site_id":"blackhillock_2","name":"Blackhillock 2","operator":"Zenobe","status":"construction","power_mw":100.0,"energy_mwh":200.0,"duration_class":"2h","tnuos_zone":"Z2","commission_year":2026,"latitude":57.62,"longitude":-3.05},{"site_id":"thorpe_marsh","name":"Thorpe Marsh","operator":"Fidra Energy","status":"consented","power_mw":1400.0,"energy_mwh":2800.0,"duration_class":"2h","tnuos_zone":"Z8","commission_year":2029,"latitude":53.58,"longitude":-1.06},{"site_id":"trafford_2","name":"Trafford BESS 2","operator":"Carlton Power","status":"consented","power_mw":520.0,"energy_mwh":1040.0,"duration_class":"2h","tnuos_zone":"Z7","commission_year":2027,"latitude":53.45,"longitude":-2.39},{"site_id":"drakelow","name":"Drakelow","operator":"Clearstone Energy","status":"consented","power_mw":320.0,"energy_mwh":640.0,"duration_class":"2h","tnuos_zone":"Z10","commission_year":2027,"latitude":52.77,"longitude":-1.66},{"site_id":"gateway_tilbury","name":"Gateway Energy Centre","operator":"InterGen","status":"consented","power_mw":320.0,"energy_mwh":640.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2027,"latitude":51.46,"longitude":0.36},{"site_id":"cellarhead","name":"Cellarhead","operator":"TBC","status":"consented","power_mw":300.0,"energy_mwh":600.0,"duration_class":"2h","tnuos_zone":"Z10","commission_year":2027,"latitude":53.03,"longitude":-2.07},{"site_id":"sundon","name":"Sundon","operator":"Statera Energy","status":"consented","power_mw":300.0,"energy_mwh":600.0,"duration_class":"2h","tnuos_zone":"Z13","commission_year":2027,"latitude":51.93,"longitude":-0.47}],"aggregates":{"named_sites":63,"total_mw":9079.5,"total_gw":9.079,"by_status":{"consented":{"sites":6,"power_mw":3160.0,"energy_mwh":6320.0,"gw":3.16},"construction":{"sites":7,"power_mw":2430.0,"energy_mwh":4860.0,"gw":2.43},"operational":{"sites":50,"power_mw":3489.5,"energy_mwh":5831.0,"gw":3.49}},"by_duration_class":{"1h":{"sites":25,"power_mw":1240.0,"energy_mwh":1250.0,"gw":1.24},"2h":{"sites":37,"power_mw":7739.5,"energy_mwh":15431.0,"gw":7.739},"4h":{"sites":1,"power_mw":100.0,"energy_mwh":330.0,"gw":0.1}},"by_tnuos_zone":{"Z2":{"sites":2,"power_mw":300.0,"energy_mwh":600.0,"gw":0.3},"Z4":{"sites":6,"power_mw":1440.0,"energy_mwh":2840.0,"gw":1.44},"Z5":{"sites":3,"power_mw":480.0,"energy_mwh":880.0,"gw":0.48},"Z6":{"sites":4,"power_mw":130.0,"energy_mwh":200.0,"gw":0.13},"Z7":{"sites":6,"power_mw":752.0,"energy_mwh":1419.0,"gw":0.752},"Z8":{"sites":6,"power_mw":1773.0,"energy_mwh":3481.0,"gw":1.773},"Z9":{"sites":2,"power_mw":130.0,"energy_mwh":167.0,"gw":0.13},"Z10":{"sites":9,"power_mw":1310.0,"energy_mwh":2610.0,"gw":1.31},"Z11":{"sites":3,"power_mw":285.0,"energy_mwh":542.0,"gw":0.285},"Z12":{"sites":2,"power_mw":100.0,"energy_mwh":124.0,"gw":0.1},"Z13":{"sites":13,"power_mw":1622.0,"energy_mwh":2883.0,"gw":1.622},"Z14":{"sites":7,"power_mw":757.5,"energy_mwh":1265.0,"gw":0.757}},"buildout_by_year":[{"year":2017,"added_mw":22.0,"by_status":{"operational":22.0},"cumulative_mw":22.0},{"year":2018,"added_mw":264.0,"by_status":{"operational":264.0},"cumulative_mw":286.0},{"year":2020,"added_mw":97.5,"by_status":{"operational":97.5},"cumulative_mw":383.5},{"year":2021,"added_mw":338.0,"by_status":{"operational":338.0},"cumulative_mw":721.5},{"year":2022,"added_mw":448.0,"by_status":{"operational":448.0},"cumulative_mw":1169.5},{"year":2023,"added_mw":573.0,"by_status":{"operational":573.0},"cumulative_mw":1742.5},{"year":2024,"added_mw":463.0,"by_status":{"operational":463.0},"cumulative_mw":2205.5},{"year":2025,"added_mw":1284.0,"by_status":{"operational":1284.0},"cumulative_mw":3489.5},{"year":2026,"added_mw":730.0,"by_status":{"construction":730.0},"cumulative_mw":4219.5},{"year":2027,"added_mw":3460.0,"by_status":{"construction":1700.0,"consented":1760.0},"cumulative_mw":7679.5},{"year":2029,"added_mw":1400.0,"by_status":{"consented":1400.0},"cumulative_mw":9079.5}]},"bm_registry":{"units":168,"capacity_proxy_mw":6815.7,"capacity_proxy_mw_deduped_same_site":6747.7,"units_with_cm_duration":96,"by_duration_class":{"1h":{"units":44,"mw":1622.7},"2h":{"units":46,"mw":1852.2},"4h":{"units":6,"mw":312.6},"unbanded":{"units":72,"mw":3028.2}},"eac_units_without_bmu":73,"eac_units_without_bmu_mw":1436.0,"fetched_at":"2026-06-12T14:52:31Z","join_disclosure":"BMU identification is the auctionUnit==nationalGridBmUnit key join (EAC battery units x Elexon register); CM duration/capacity attach by normalised postcode — a fuzzy join, flagged per row in 'sources', restricted to CM delivery years <= 2026 with the class resolved as the connection-MW-weighted mode across eligible years. EAC units with no matching BMU registration (including non-BM aliases of BM sites) are excluded from the registry; their MW total and per-unit details are in 'unmatched_units'.","source_endpoints":{"elexon_bmu_register":"https://data.elexon.co.uk/bmrs/api/v1/reference/bmunits/all","neso_eac_results_by_unit":"a63ab354-7e68-44c2-ad96-c6f920c30e85","neso_eac_results_fy2025_archive":"c312358e-87da-480e-88cc-d45c1dce1b41","neso_cm_register_components":"790f5fa0-f8eb-4d82-b98d-0d34d3e404e8"}},"notes":{"duration_class_provenance":"Duration classes are registration bands, not measurements. The BM-registered fleet's classes come from the NESO Capacity Market register's duration bands ('Generating Technology Class'), attached by postcode; the quarterly index's metered-implied duration audit found registered bands disagreeing with measured behaviour often enough to blur class boundaries (16 of 40 audited '1h'-banded units sustained 1.5h or longer), and from 2026Q3 the index's primary classification moves to metered-implied duration. Seed-registry sites carry the nearest standard band implied by their public power/energy ratings, which are approximate.","coverage":"The seed registry lists the well-known large assets individually; the long tail of sub-20 MW sites (roughly 1-1.5 GW in aggregate) is not individually listed, so the named-site totals here understate the full operational fleet. The battery-BMU registry (below) covers the BM-registered fleet per unit. Northern Ireland assets are out of scope (SEM market). Power/energy ratings are approximate public figures; commissioning years are energisation years where known, else announced targets; coordinates are approximate site locations."},"attributions":["Contains BMRS data © Elexon Limited copyright and database right 2026","Supported by National Energy SO Open Data"],"current_code_version":"105561b","licence":"Free to use with attribution to 'CE GB BESS Index — CECadence (cadence.compoundingenergy.com)'. Underlying data: BMRS data (c) Elexon Limited and NESO open data, each reused under its own open-data licence. Bulk redistribution or resale of this feed is not licensed — contact hello@compoundingenergy.com."}