Grid infrastructure › Connection queue › Solar + storage
SOLAR + STORAGE · SPTNew Cumnock BESS
New Cumnock BESS is a 450 MW solar + storage project in planning, connecting to the SP Transmission (south Scotland) network at New Cumnock 275/132kV Substation, with capacity due from October 2033. The connection agreement is held by New Cumnock BESS Ltd.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 2033 (not yet reached)
- Closed (not yet reached)
Scoping and awaiting consents are both shown as planning. A connection agreement does not mean the project will be built: many queue projects never reach construction.
Connection details
- NESO project number
- PRO-003485
- Customer
- New Cumnock BESS Ltd
- Technology
- Energy Storage System, PV Array (Photo Voltaic/solar)
- Total capacity
- 450 MW
- Change in this agreement
- +450 MW
- Capacity effective from
- 30 October 2033
- Connection site
- New Cumnock 275/132kV Substation
- Transmission owner
- SP Transmission (south Scotland)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
- Connections reform gate
- Gate 1
Connection site
The marker shows the connection substation, not the project itself, with the transmission network around it.
Source: NESO Transmission Entry Capacity (TEC) register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem