Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· SPTDevonhill
Devonhill is a 500 MW battery storage project in planning, connecting to the SP Transmission (south Scotland) network at Strathaven 400/275kV, with capacity due from October 2033. The connection agreement is held by Cbs Energy Storage Assets UK Limited.
- 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-004492
- Customer
- Cbs Energy Storage Assets UK Limited
- Technology
- Energy Storage System
- Total capacity
- 500 MW
- Change in this agreement
- +500 MW
- Capacity effective from
- 28 October 2033
- Connection site
- Strathaven 400/275kV
- Transmission owner
- SP Transmission (south Scotland)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
Connection site
The marker shows the connection substation, not the project itself, with the transmission network around it.
Other projects at Strathaven 400/275kV
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