Battery storage · United Kingdom
Mill Hill National Grid Substation
Awaiting Construction49.9 MWChecked 6 October 2026Last changed in the dataset 27 March 2023
The site
- Technology
- Battery storage (Stand-alone Storage)
- Capacity
- 49.9 MW
- Status
- Awaiting Construction (Appeal Granted)
- Operator or applicant
- Harbour Energy
- Location
- National Grid Mill Hill Substa, Partingdale Lane, Barnet, London, NW7 1NT, United Kingdom
- Planning authority
- Barnet
- Planning application
- 20/4241/FUL
- Appeal reference
- 22/00221/AREF
View on OpenStreetMap. The larger dot is this site; the others are sites within 40 km.
Timeline
- 16 September 2020 Planning application submitted
- 7 April 2022 Planning permission refused
- 8 August 2022 Appeal lodged
- 13 March 2023 Planning permission granted
- 13 March 2023 Appeal granted
Incidents on the register at this site
None found. The register holds no published incident that names Mill Hill National Grid Substation. If you know of one, report it (confidential reports are anonymised).
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Incidents at battery storage sites in the United Kingdom
The register holds 14 incidents at battery storage sites in the United Kingdom, 9 of them fires, and 177 worldwide. Counts of incidents in published reporting, not rates.
- Fire in home battery storage system connected to solar panels
- Gas leak at Cockenzie battery storage site under construction
- Short circuit in lithium battery cells reported as cause of fire at Rufford Colliery BESS
- Smoke and fire incident at Battery Box, Pinhoe Road, Exeter
- Battery storage site fire in East Tilbury brought under control after 24 hours
What fails at battery storage sites · All battery storage incidents
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Contains public sector information licensed under the Open Government Licence v3.0 (Renewable Energy Planning Database, Department for Energy Security and Net Zero). The dataset. The register adds only the incidents and the counts.