Welbar Energy Storage

Welbar Energy Storage is a 350 MW battery storage project built and connected, connecting to the National Grid (England & Wales) network at Hams Hall 400kV Substation. The connection agreement is held by Welbar Energy Storage Limited.

Project stageOperating

Planning (completed)
Consented (completed)
Construction (completed)
Operating (current stage)
Closed (not yet reached)

Connection details

NESO project number: PRO-001735-1
Customer: Welbar Energy Storage Limited
Technology: Energy Storage System
Total capacity: 350 MW
Already connected: 350 MW
Connection site: Hams Hall 400kV Substation
Transmission owner: National Grid (England & Wales)
Connection type: Direct connection to the transmission network
NESO project status: Built
Connections reform gate: Gate 2

Connection site

The marker shows the connection substation, not the project itself, with the transmission network around it.

Projects connecting near Hams Hall · Grid map

Other projects at Hams Hall 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