Battery storage · United Kingdom
National Grid Substation - Battery Energy Storage System
Awaiting Construction100 MWChecked 6 October 2026Last changed in the dataset 10 September 2025
The site
- Technology
- Battery storage (Stand-alone Storage)
- Capacity
- 100 MW
- Status
- Awaiting Construction (Planning Permission Granted)
- Operator or applicant
- Penso Power (BW ESS)
- Location
- E/O National Grid Substation, Broadclyst, Exeter, Devon, EX5 3DA, United Kingdom
- Planning authority
- East Devon
- Planning application
- 25/0063/MFUL
View on OpenStreetMap. The larger dot is this site; the others are sites within 40 km.
Timeline
- 15 October 2024 Planning application submitted
- 22 August 2025 Planning permission granted
- 22 August 2028 Planning permission expired
Incidents on the register at this site
None found. The register holds no published incident that names National Grid Substation - Battery Energy Storage System. 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.