Grid infrastructure › Connection queue › Solar + storage
SOLAR + STORAGE · SPTGrangemouth Hybrid BESS & Solar PV
Grangemouth Hybrid BESS & Solar PV is a 300 MW solar + storage project in planning, connecting to the SP Transmission (south Scotland) network at Letham 400/275kV substation, with capacity due from June 2032. The connection agreement is held by Tagenergy Development UK Limited.
Project stageIn planning
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Jun 2032 (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-003254
- Customer
- Tagenergy Development UK Limited
- Technology
- Energy Storage System, PV Array (Photo Voltaic/solar)
- Total capacity
- 300 MW
- Change in this agreement
- +300 MW
- Capacity effective from
- 30 June 2032
- Connection site
- Letham 400/275kV 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 connection site could not be placed on the map.
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