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Grid infrastructure β€Ί Connection queue β€Ί Hydro and pumped storage

HYDRO AND PUMPED STORAGE Β· NGET

Dinorwig

Dinorwig is a 1.6 GW hydro and pumped storage project built and connected, connecting to the National Grid (England & Wales) network at Dinorwig 400kV Substation. The connection agreement is held by First Hydro Company.

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-000054
Customer
First Hydro Company
Technology
Pump Storage
Total capacity
1.6 GW
Already connected
1.6 GW
Connection site
Dinorwig 400kV 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 Dinorwig Β· Grid map

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