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Transmission / Projects / England and Wales

Connah's Quay

Uniper UK Limited at Connah's Quay 400kV Substation

Connection date
Connected
Gate
Not stated
Status
Built
Technology
Gas (CCGT)
Total capacity
1,380 MW
Connected now
1,380 MW
Still to connect
0 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-000058
In the register since
January 2021 or earlier

Change history

Every change to this project across 151 registers from 29 Jan 2021 to 5 Nov 2026.

  • 27 Jan 2026 register
    Customer changed from C.GEN Killingholme Limited to Uniper UK Limited
  • 16 Dec 2025 register
    Customer changed from Uniper UK Limited to C.GEN Killingholme Limited
  • 23 Dec 2022 register
    Substation name updated in the register (from Connah's Quay 400kV to Connah's Quay 400kV Substation)

Also at Connah's Quay 400kV Substation

Substation view

3 other projects, 1.4 GW still to connect at this substation in total.

Status definitions (NESO)

Scoping: NESO is not aware that a planning application has been made.

Awaiting Consents: NESO is aware, or the customer has told it, that a planning application has been made.

Consents Approved: NESO is aware, or the customer has told it, that the planning application has been approved.

Terminated: used by NESO only in its register of 30 April 2021, for two projects that left the register the next month.

These statuses are NESO’s, not QueueWatch’s, and NESO describes them as “as far as we are aware”, so a project may be further along than its status shows.

Source: NESO