🔌 EV Partnership Switch to Octopus Energy & unlock exclusive smart EV charging rates Find out more → Skip to main content

Grid infrastructure › Connection queue › Hydro and pumped storage

HYDRO AND PUMPED STORAGE · NGET

Pembroke Power Station

Pembroke Power Station is a 2.2 GW hydro and pumped storage project built and connected, connecting to the National Grid (England & Wales) network at Pembroke 400kV Substation. The connection agreement is held by RWE Generation UK Plc.

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-000056
Customer
RWE Generation UK Plc
Technology
Demand, Hydrogen
Total capacity
2.2 GW
Already connected
2.2 GW
Connection site
Pembroke 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 Pembroke · Grid map

Other projects at Pembroke 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