Grid infrastructure βΊ Connection queue βΊ Battery storage
BATTERY STORAGE Β· NGETSizing John (Rainhill)
Sizing John (Rainhill) is a 143 MW battery storage project consented, connecting to the National Grid (England & Wales) network at Rainhill GSP, with capacity due from September 2026. The connection agreement is held by Sizing John Limited.
Project stageConsented
- Planning (completed)
- Consented (current stage)
- Construction (not yet reached)
- OperatingFrom Sep 2026 (not yet reached)
- Closed (not yet reached)
Connection details
- NESO project number
- PRO-001581-2
- Customer
- Sizing John Limited
- Technology
- Energy Storage System
- Total capacity
- 143 MW
- Change in this agreement
- +86 MW
- Capacity effective from
- 25 September 2026
- Connection site
- Rainhill GSP
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Consents Approved
Connection site
The marker shows the connection substation, not the project itself, with the transmission network around it.
Other projects at Rainhill 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