Tollgate battery storage

Tollgate is a 49 MW battery storage site near Brookmans Park in Hertfordshire. 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 Tollgate

Tollgate is a battery storage site near Brookmans Park in Hertfordshire.

Its 49 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.

Tollgate
Where Tollgate is. From its REPD location. Map outline: Natural Earth.
TypeBattery storage
Registered capacity49 MW
AreaHertfordshire
LocationNear Brookmans Park in Hertfordshire
51.735° N, 0.237° W
Elexon lead partyTollgate Energy Storage Ltd
BM unit E_TOLLB-1 49 MW
Size58th 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. 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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