Battery storage · United Kingdom
Hilfield Lane, Aldenham - Battery Energy Storage
Awaiting Construction170 MWChecked 6 October 2026Last changed in the dataset 24 February 2026
The site
- Technology
- Battery storage (Stand-alone Storage)
- Capacity
- 170 MW
- Status
- Awaiting Construction (Appeal Granted)
- Operator or applicant
- Penso Power (BW ESS)
- Location
- W/O Hilfield Lane, Aldenham, Watford, Hertfordshire, WD25 8DD, United Kingdom
- Planning authority
- Hertsmere
- Planning application
- 25/0153/FUL
View on OpenStreetMap. The larger dot is this site; the others are sites within 40 km.
Timeline
- 6 February 2025 Planning application submitted
- 16 January 2026 Planning permission granted
- 16 January 2026 Appeal granted
- 16 January 2029 Planning permission expired
Incidents on the register at this site
None found. The register holds no published incident that names Hilfield Lane, Aldenham - Battery Energy Storage. 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 176 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.