Holmston battery storage

Holmston is a 50 MW battery storage site at Holmston, on the edge of Ayr, in South Ayrshire. Is it running right now? Its live output from Elexon, the GB electricity market's data service, and every half hour of the last week.

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About Holmston

Holmston is a battery storage site at Holmston, on the edge of Ayr, in South Ayrshire.

Its 50 MW of registered generating capacity is spread across one balancing mechanism unit. Every half hour each unit tells the grid how much it will generate (its physical notification): that is the live figure above, and GridMonkey has recorded it every half hour since it was added to the list in October 2026, for the chart.

Battery stations charge when power is cheap and plentiful and discharge at the peaks, in seconds. Their output swings between charging and discharging through the day.

Holmston
Where Holmston is. From its REPD location. Map outline: Natural Earth.
TypeBattery storage
Registered capacity50 MW
AreaSouth Ayrshire
LocationAt Holmston, on the edge of Ayr, in South Ayrshire
55.457° N, 4.590° W
Operator in REPDField (REPD)
Elexon lead partyField Holmston Ltd
BM unit E_HOLMB-1 50 MW
Size46th largest of the 79 battery storage sites on GridMonkey's list

Other battery storage sites

Contains BMRS data © Elexon Limited copyright and database right 2026 (licence). Station names come from GridMonkey's own table, matched to the units in Elexon's register; a station's output here is its physical notification, not metered generation. Operator, area and location: Renewable Energy Planning Database (REPD) (Department for Energy Security and Net Zero, July 2026). Contains public sector information licensed under the Open Government Licence v3.0.

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