Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· NGETCowley Energy Storage
Cowley Energy Storage is a 200 MW battery storage project consented, connecting to the National Grid (England & Wales) network at Cowley 400kV Substation, with capacity due from July 2028. The connection agreement is held by Bw Ess Development UK Limited.
Project stageConsented
- Planning (completed)
- Consented (current stage)
- Construction (not yet reached)
- OperatingFrom Jul 2028 (not yet reached)
- Closed (not yet reached)
Connection details
- NESO project number
- PRO-002066
- Customer
- Bw Ess Development UK Limited
- Technology
- Energy Storage System
- Total capacity
- 200 MW
- Change in this agreement
- +200 MW
- Capacity effective from
- 14 July 2028
- Connection site
- Cowley 400kV Substation
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Consents Approved
- Connections reform gate
- Gate 2
Connection site
The marker shows the connection substation, not the project itself, with the transmission network around it.
Other projects at Cowley 400kV Substation
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