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Transmission / Projects / England and Wales

Hirwaun Power Station

HIRWAUN POWER LIMITED at Rhigos 400kV Substation

Connection date
Connected
Gate
Not stated
Status
Built
Planning consent
Granted 23 Jul 2015
Hirwaun Power Station (EN010059) · Source: Planning Inspectorate
Technology
Gas (OCGT)
Total capacity
299 MW
Connected now
299 MW
Still to connect
0 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-000309
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.

  • 31 Oct 2025 register
    299 MW now connected
  • 31 Oct 2025 register
    Status changed from Under Construction/Commissioning to Built
  • 28 Jul 2023 register
    Substation name updated in the register (from Rhigos GSP to Rhigos 400kV Substation)
  • 30 May 2023 register
    Status changed from Consents Approved to Under Construction/Commissioning
  • 23 Dec 2022 register
    Substation name updated in the register (from Rhigos to Rhigos GSP)
  • 28 Jan 2022 register
    Connection date moved from 10 Jul 2021 to 30 Sep 2023 (+27 months)
  • 26 Feb 2021 register
    Connection date moved from 7 Oct 2021 to 10 Jul 2021 (−3 months)

Also at Rhigos 400kV Substation

Substation view

4 other projects, 1.1 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

Planning consent

The planning decision for this project, from the Planning Inspectorate. NESO’s status can lag behind planning decisions, so the two may differ.

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