Uskmouth

Uskmouth is a 350 MW battery storage project built and connected, connecting to the National Grid (England & Wales) network at Uskmouth 132kV Substation. The connection agreement is held by Uskmouth Energy Storage Limited.

Project stageOperating

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

Connection details

NESO project number: PRO-000220
Customer: Uskmouth Energy Storage Limited
Technology: Energy Storage System
Total capacity: 350 MW
Already connected: 350 MW
Connection site: Uskmouth 132kV 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 Uskmouth · Grid map

Other projects at Uskmouth 132kV 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