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Grid infrastructure β€Ί Connection queue β€Ί Battery storage

BATTERY STORAGE Β· NGET

Wilton Lion BESS

Wilton Lion BESS is a 150 MW battery storage project built and connected, connecting to the National Grid (England & Wales) network at Greystones A 275kV Substation. The connection agreement is held by Sembcorp (Wilton BESS) Limited.

Project stageOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. Operating (current stage)
  5. Closed (not yet reached)

Connection details

NESO project number
PRO-001048
Customer
Sembcorp (Wilton BESS) Limited
Technology
Energy Storage System
Total capacity
150 MW
Already connected
150 MW
Connection site
Greystones A 275kV Substation
Transmission owner
National Grid (England & Wales)
Connection type
Direct connection to the transmission network
NESO project status
Built

Connection site

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

Projects connecting near Greystones A Β· Grid map

Other projects at Greystones A 275kV 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