St Ippolyts Solar Farm & Battery Storage (12.5 MW)
St Ippolyts Solar Farm & Battery Storage is a 12.5 MW battery storage project in North Hertfordshire, England. Its status in the Renewable Energy Planning Database (July 2026 extract) is: approved on 28 July 2025, not yet built; the record was last updated on 22 August 2025.
12.5 MWbattery storage
approved, not builtstatus in REPD
22 August 2025record last updated
North Hertfordshirecouncil area
Planning timeline
| Date | Stage |
|---|---|
| 29 July 2021 | Application submitted |
| 28 July 2025 | Planning permission granted |
| 28 July 2028 | Permission due to expire (unless work starts) |
Project details
- Technology
- battery storage (co-located with re)
- Capacity
- 12.5 MW
- Status (REPD)
- approved, not built
- Record last updated
- 22 August 2025
- Operator or applicant
- Brockwell Storage & Solar Limited
- Planning authority
- North Hertfordshire
- Planning application reference
- 24/02455/FP
- Address (REPD)
- Opp Wymondley Grid Station & To The S/O Sperberry Hill, St Ippolyts, Hitchin
- Council area (by location)
- North Hertfordshire
- Time to decision
- 209 weeks
- Name in REPD
- St Ippolyts - Solar Farm & Battery Storage
- REPD reference
- 17446
The scheme also includes 12.5 MW of battery storage, recorded separately in REPD (replaced by a revised application).
Earlier applications for this site
| Application | MW | Submitted | Outcome |
|---|---|---|---|
| St Ippolyts Solar Farm & Battery Storage 22/00709/FP | 12.5 | 13 March 2022 | refused 22 November 2023 |
Who decides
| Applications | North Hertfordshire | UK |
|---|---|---|
| Decided applications (solar, wind, battery) | 17 | 10,236 |
| Refused | 5 (29%) | 19% |
| Solar refused | 3 of 9 | 12% |
| Onshore wind refused | 1 of 1 | 45% |
| Battery storage refused | 1 of 7 | 16% |
| Median time from submission to decision | 88.4 weeks | 17.0 weeks |
| Appeals lodged / allowed | 1 / 2 | — |
Other large projects within 10 km
| Project | Type | MW | Status | km |
|---|---|---|---|---|
| St Ippolyts Solar Farm & Battery Storage | solar farm | 25 | approved, not built | <0.1 |
| Stevenage Road, Titmore Green | battery storage | 57 | application submitted | 0.6 |
| Wymondley Solar Farm, Great Wymondley | solar farm | 50 | approved, not built | 2.2 |
| Rush Green Motors | battery storage | 50 | application withdrawn | 2.7 |
| Three Houses Lane | solar farm | 11.3 | refused | 6.4 |
| Weston Hills | wind farm | 6 | refused | 7.1 |
| Weston | wind farm | 6 | application withdrawn | 7.2 |
| Letchworth Garden City - Urban Reserve Energy Storage Facility | battery storage | 5 | approved, not built | 7.2 |
| Wandon End Solar Farm & Battery Storage | solar farm | 49.9 | approved, not built | 7.7 |
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 (51.9229, -0.2473).