Stonehill Energy Storage / Upper Minety (50 MW, 2017 application)
Stonehill Energy Storage / Upper Minety is a 50 MW battery storage project in Wiltshire, England. Its status in the Renewable Energy Planning Database (July 2026 extract) is: operational since 1 December 2020; the record was last updated on 9 March 2026.
50 MWbattery storage
operationalstatus in REPD
9 March 2026record last updated
Wiltshirecouncil area
Planning timeline
| Date | Stage |
|---|---|
| 29 June 2017 | Application submitted |
| 21 September 2017 | Planning permission granted |
| 1 December 2019 | Construction started |
| 1 December 2020 | Operational |
Project details
- Technology
- battery storage (stand-alone storage)
- Capacity
- 50 MW
- Status (REPD)
- operational
- Record last updated
- 9 March 2026
- Operator or applicant
- Penso Power (BW ESS)
- Planning authority
- Wiltshire
- Planning application reference
- 17/05526/FUL
- Address (REPD)
- Land Adjacent To Electricity S, Stonehill, Charlton, Malmesbury,
- Council area (by location)
- Wiltshire
- Time to decision
- 12 weeks
- REPD reference
- 20399
Who decides
| Applications | Wiltshire | UK |
|---|---|---|
| Decided applications (solar, wind, battery) | 140 | 10,236 |
| Refused | 18 (13%) | 19% |
| Solar refused | 13 of 110 | 12% |
| Onshore wind refused | 1 of 1 | 45% |
| Battery storage refused | 4 of 29 | 16% |
| Median time from submission to decision | 20.9 weeks | 17.0 weeks |
| Appeals lodged / allowed | 5 / 7 | — |
Other large projects within 10 km
| Project | Type | MW | Status | km |
|---|---|---|---|---|
| Stonehill Energy Storage / Upper Minety | battery storage | 50 | operational | <0.1 |
| Stonehill Energy Storage / Lower Minety | battery storage | 50 | operational | <0.1 |
| Stonehill Energy Storage | battery storage | 50 | approved, not built | 0.2 |
| National Grid Minety Substation | battery storage | 49.9 | approved, not built | 0.4 |
| Minety Substation | solar farm | 40 | approved, not built | 0.5 |
| Minety South 2 | battery storage | 50 | operational | 0.5 |
| Minety South | battery storage | 50 | operational | 1.2 |
| Minety North | battery storage | 50 | abandoned | 1.2 |
| Fairholme, Minety | battery storage | 50 | approved, not built | 1.9 |
Status and dates as recorded in the Renewable Energy Planning Database (July 2026 extract); the database is compiled from public sources and can lag behind council decisions. Location: REPD grid reference (51.6053, -2.004).