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BATTERY STORAGE · SPTMiddleton Farm BESS
Middleton Farm BESS is a 937 MW battery storage project in planning, connecting to the SP Transmission (south Scotland) network at Middleton Farm 400Kv Substation, with capacity due from October 2033. The connection agreement is held by Bluestone Energy 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-004120
- Customer
- Bluestone Energy Ltd
- Technology
- Energy Storage System
- Total capacity
- 937 MW
- Change in this agreement
- +937 MW
- Capacity effective from
- 25 October 2033
- Connection site
- Middleton Farm 400Kv 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