What this is: a free public registry of GB grid-scale battery storage — every named site's status (operational / construction / consented), MW, duration class, TNUoS zone and commissioning year — built from the Elexon BMU register, NESO EAC auction participation, the NESO Capacity Market register and a curated seed registry compiled from public sources. Facts only: no revenue figures appear on this page — measured revenue is published in the quarterly index and its per-asset lookup.
Future years are announced target years for pipeline sites — a registration fact, not a forecast.
| Site | Operator | Status | MW | MWh | Class | Zone | Year |
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The CECadence Quarterly GB BESS Index: revenue per MW measured from public settlement and auction records, by duration class, strategy and TNUoS zone — with a per-asset lookup beside it (raw dataset: /api/index/assets). Since the 2025Q4–2026Q3 window the report counts every Elexon-registered battery unit we can identify with metered output (behaviour-screened), not only the registry on this page, and classes duration by how each unit actually discharges — so its unit counts and duration classes differ from the ones shown here.
The CECadence app solves prices and the whole fleet's dispatch jointly — test a new site against the build-out on this page instead of against yesterday's spreads. Free demo, no account needed.