Kilmarnock South Substation (300 MW battery storage)
Kilmarnock South Substation is a 300 MW battery storage project in East Ayrshire, Scotland. Its status in the Renewable Energy Planning Database (July 2026 extract) is: operational since 21 January 2026; the record was last updated on 10 March 2026. As a project over 50 MW in Scotland, it is decided by Scottish Ministers under Section 36.
Planning timeline
| Date | Stage |
|---|---|
| 22 February 2022 | Application submitted |
| 26 January 2024 | Construction started |
| 21 January 2026 | Operational |
Project details
- Technology
- battery storage (stand-alone storage)
- Capacity
- 300 MW
- Status (REPD)
- operational
- Record last updated
- 10 March 2026
- Operator or applicant
- Zenobe Energy
- Planning authority
- Scottish Government (S36)
- Planning application reference
- ECU00003435
- Address (REPD)
- Kilmarnock South Substation Treeswoodhead Road
- Council area (by location)
- East Ayrshire
- Name in REPD
- Kilmarnock South Substation - Battery storage
- REPD reference
- 9696
Who decides
As a project over 50 MW in Scotland, it is decided by Scottish Ministers under Section 36. Scottish Government (S36) refused 18% of 334 decided solar, wind and battery applications in REPD (median 127 weeks to a decision). Across all UK planning authorities 19% of 10,236 decided applications were refused.
Other large projects within 10 km
| Project | Type | MW | Status | km |
|---|---|---|---|---|
| Inchbean Farm, Treeswoodhead Road | battery storage | 60 | approved, not built | 1.2 |
| Kilmarnock Battery Energy Storage System | battery storage | 500 | approved, not built | 2.0 |
| Camsiscan Farm, Craigie | battery storage | 350 | approved, not built | 2.9 |
| Holmquarry Road | battery storage | 60.4 | approved, not built | 3.1 |
| Sneddon Law Community Wind Farm | wind farm | 45 | under construction | 8.5 |
| Cowans Law | wind farm | 49.9 | refused | 8.5 |
| Alton Muirhouse Farm | wind farm | 6.8 | refused on appeal | 8.7 |
| Olympic Business Park, Dundonald - 2 Wind Turbines | wind farm | 8.5 | refused | 8.8 |
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 (55.5782, -4.4675).