Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· NGETCulham Storage
Culham Storage is a 500 MW battery storage project consented, connecting to the National Grid (England & Wales) network at Culham Jet 400kV Substation, with capacity due from October 2029. The connection agreement is held by Culham Storage Limited.
Project stageConsented
- Planning (completed)
- Consented (current stage)
- Construction (not yet reached)
- OperatingFrom Oct 2029 (not yet reached)
- Closed (not yet reached)
Connection details
- NESO project number
- PRO-001946
- Customer
- Culham Storage Limited
- Technology
- Energy Storage System
- Total capacity
- 500 MW
- Change in this agreement
- +500 MW
- Capacity effective from
- 31 October 2029
- Connection site
- Culham Jet 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.
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