Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· SPTWest Caulder BESS
West Caulder BESS is a 250 MW battery storage project in planning, connecting to the SP Transmission (south Scotland) network at Harburn 400kV, with capacity due from October 2033. The connection agreement is held by GPC Project 13 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-003234
- Customer
- GPC Project 13 Ltd
- Technology
- Demand, Energy Storage System
- Total capacity
- 250 MW
- Change in this agreement
- +250 MW
- Capacity effective from
- 31 October 2033
- Connection site
- Harburn 400kV
- Transmission owner
- SP Transmission (south Scotland)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
Connection site
The marker shows the place the connection site is named after, 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