Harker Moss (360 MW battery storage)
Harker Moss is a 360 MW battery storage project in Cumberland, England. Its status in the Renewable Energy Planning Database (July 2026 extract) is: approved on 9 July 2025, not yet built; the record was last updated on 7 May 2026.
360 MWbattery storage
approved, not builtstatus in REPD
7 May 2026record last updated
Cumberlandcouncil area
Planning timeline
| Date | Stage |
|---|---|
| 11 November 2024 | Application submitted |
| 9 July 2025 | Planning permission granted |
Project details
- Technology
- battery storage (stand-alone storage)
- Capacity
- 360 MW
- Status (REPD)
- approved, not built
- Record last updated
- 7 May 2026
- Operator or applicant
- ESB (Harker) Limited
- Planning authority
- Cumberland
- Planning application reference
- 24/0680
- Address (REPD)
- Adj To Harker Substation Known As Harker Moss, Carlisle
- Council area (by location)
- Cumberland
- Time to decision
- 34 weeks
- Name in REPD
- Harker Moss - Battery Energy Storage System
- REPD reference
- 17649
Who decides
| Applications | Cumberland | UK |
|---|---|---|
| Decided applications (solar, wind, battery) | 91 | 10,236 |
| Refused | 30 (33%) | 19% |
| Solar refused | 4 of 32 | 12% |
| Onshore wind refused | 25 of 45 | 45% |
| Battery storage refused | 1 of 14 | 16% |
| Median time from submission to decision | 22.4 weeks | 17.0 weeks |
| Appeals lodged / allowed | 7 / 9 | — |
Other large projects within 10 km
| Project | Type | MW | Status | km |
|---|---|---|---|---|
| Harker Grid Sub Station | battery storage | 49.9 | permission expired | <0.1 |
| Blackdyke Farm Battery Storage Project | battery storage | 49.9 | abandoned | 0.4 |
| Low Harker Farm, Low Harker | battery storage | 400 | approved, not built | 0.6 |
| Heathlands | solar farm | 5 | abandoned | 1.1 |
| Blackdyke Farm | solar farm | 7.7 | abandoned | 1.1 |
| Blackdyke Farm, Blackford | battery storage | 340 | refused | 1.3 |
| Blackdyke Farm, Blackford | battery storage | 400 | approved, not built | 1.3 |
| Kingmoor Park | solar farm | 5 | operational | 1.4 |
| Cargo Road, Cargo | battery storage | 200 | abandoned | 2.3 |
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 (54.942, -2.964).