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 / South Scotland

Coylton 275kV Greener Grid Park

COYLTON ENERGY LIMITED at Coylton 275kV substation

Connection date
30 Apr 2026 +2 months since 9 Dec
Gate
Gate 2
Status
Scoping
Technology
Storage
Total capacity
450 MW
Connected now
0 MW
Still to connect
450 MW
Transmission owner
SP Energy Networks (SPT)
Agreement type
Direct Connection
Region
South Scotland
Project number
PRO-001551
In the register since
September 2021

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?

Stages

StageConnected MWAdds MWCumulative MWDateGateStatus
10505018 May 2026Gate 2Consents Approved
2010015030 Apr 2026Not statedScoping
3030045030 Oct 2037Not statedScoping

Change history

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

  • 31 Jul 2026 register
    Connection point changed from Coylton 275/132kV to Coylton 275kV substation
  • 31 Jul 2026 register
    Stage 1: Connection date moved from 28 Feb 2026 to 18 May 2026 (+3 months)
  • 31 Jul 2026 register
    Stage 1: Given a Gate 2 connection offer
  • 19 Dec 2025 register
    Connection point changed from Coylton 275/33kV Substation to Coylton 275/132kV
  • 27 Jun 2025 register
    Restructured from 1 stage (150 MW from 30 May 2025) to 3 stages (50 MW from 28 Feb 2026, 100 MW from 30 Apr 2026, 300 MW from 30 Oct 2037). First connection date +9 months
  • 28 Nov 2023 register
    Connection date moved from 30 Jul 2025 to 30 May 2025 (−2 months)
  • 31 Oct 2023 register
    Connection point changed from Coylton GSP to Coylton 275/33kV Substation
  • 31 Oct 2023 register
    Capacity changed from 49.9 MW to 150 MW
  • 31 Oct 2023 register
    Connection date moved from 25 Oct 2024 to 30 Jul 2025 (+9 months)
  • 31 Oct 2023 register
    Technology changed from Storage, Reactive compensation to Storage
  • 28 Apr 2023 register
    Customer changed from STATKRAFT UK LTD to COYLTON ENERGY LIMITED
  • 28 Feb 2023 register
    Connection date moved from 30 Apr 2025 to 25 Oct 2024 (−6 months)
  • 23 Dec 2022 register
    Substation name updated in the register (from Coylton to Coylton GSP)
  • 30 Nov 2021 register
    Renamed from Coylton 275kV Synchronous Compensation and BESS
  • 30 Nov 2021 register
    Technology changed from Storage to Storage, Reactive compensation
  • 28 Sep 2021 register
    Added to the register

Also at Coylton 275kV substation

Substation view

No other projects in the register at this connection point.

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