Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· NGETWitney BESS
Witney BESS is a 150 MW battery storage project in planning, connecting to the National Grid (England & Wales) network at Cowley GSP, with capacity due from November 2038. The connection agreement is held by Voltwise Power Holdings Limited.
Project stageIn planning
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Nov 2038 (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-005136
- Customer
- Voltwise Power Holdings Limited
- Technology
- Energy Storage System
- Total capacity
- 150 MW
- Change in this agreement
- +150 MW
- Capacity effective from
- 1 November 2038
- Connection site
- Cowley GSP
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Embedded (connects through the local distribution 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 Cowley GSP
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