QueueWatchby QueueQuant Price my project Get the plan that holds up best for your site, and where that answer flips.
Delays and exits in the transmission queue since 2021How often connection dates move, and how many projects leave the queue. Gate 2 in the transmission queueHow much of the queue has a Gate 2 offer, and what it did to connection dates. The battery queue and CMP470’s commitment feeHow far the battery queue sits above the line that would switch CMP470’s commitment fee off. Changes of customer in the transmission queueHow often connection agreements move between companies, and how those projects fared. Do projects connect on time?How late stages have connected against their connection date in the register. Which connection dates slip least?Which connection dates are pushed back least, allowing for how far ahead they are. Grid outages and the connections due by 2030How many of their planned outages the transmission owners carry out, against the connections due by 2030.

More analyses are on the way.

Transmission / Projects / England and Wales

Deeside Power Station

DEESIDE POWER (UK) LIMITED at Connah's Quay 400kV Substation

Connection date
Increase at an existing station: +189 MW from 25 Oct 2026
Gate
Gate 2
Status
Built
Technology
Storage + Reactive compensation
Total capacity
190 MW
Connected now
1 MW
Still to connect
189 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-001062
In the register since
January 2021 or earlier

What would CMP470’s commitment fee do to a battery like this? See the use case: Will CMP470’s commitment fee clear the battery queue?

Change history

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

  • 18 Sep 2026 register
    Status changed from Consents Approved to Built
  • 18 Sep 2026 register
    Given a Gate 2 connection offer
  • 27 Mar 2026 register
    Connection point changed from Deeside 400kV Substation to Connah's Quay 400kV Substation
  • 29 Aug 2025 register
    Connection point changed from Connah's Quay 400kV Substation to Deeside 400kV Substation
  • 29 Aug 2025 register
    Technology changed from Storage, Gas engines to Storage, Reactive compensation
  • 29 Apr 2025 register
    1 MW now connected
  • 29 Apr 2025 register
    Status changed from Scoping to Consents Approved
  • 27 Sep 2024 register
    1 MW no longer connected
  • 27 Sep 2024 register
    Connection point changed from Deeside 400kV Substation to Connah's Quay 400kV Substation
  • 27 Sep 2024 register
    Capacity changed from 189 MW to 190 MW
  • 27 Sep 2024 register
    Status changed from Built to Scoping
  • 27 Sep 2024 register
    Technology changed from Storage, Reactive compensation to Storage, Gas engines
  • 28 Jun 2024 register
    Connection date moved from 31 Oct 2033 to 25 Oct 2026 (−84 months)
  • 28 Feb 2023 register
    Technology changed from Reactive compensation to Storage, Reactive compensation
  • 31 Jan 2023 register
    Capacity changed from 0 MW to 189 MW
  • 31 Jan 2023 register
    Connection date set to 31 Oct 2033
  • 31 Dec 2021 register
    Technology changed from Gas (CCGT) to Reactive compensation

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