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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.

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Transmission / Projects / South Scotland

Gresham House Cockenzie BESS

COCKENZIE STORAGE LIMITED at Meadowmill 400/132kV Substation

Connection date
31 Jul 2027 +12 months since 9 Dec
Gate
Gate 2
Status
Under Construction/Commissioning
Technology
Storage
Total capacity
240 MW
Connected now
0 MW
Still to connect
240 MW
Transmission owner
SP Energy Networks (SPT)
Agreement type
Direct Connection
Region
South Scotland
Project number
PRO-002209
In the register since
November 2022

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 Scoping to Under Construction/Commissioning
  • 19 Jun 2026 register
    Connection date moved from 31 Jul 2026 to 31 Jul 2027 (+12 months)
  • 19 Jun 2026 register
    Given a Gate 2 connection offer
  • 6 Jan 2026 register
    Connection point changed from Cockenzie 400/132kV to Meadowmill 400/132kV Substation
  • 29 Aug 2025 register
    Connection point changed from Cockenzie 275/33kV to Cockenzie 400/132kV
  • 29 Oct 2024 register
    Substation name updated in the register (from Cockenzie GSP to Cockenzie 275/33kV)
  • 28 Feb 2023 register
    Customer changed from Gresham House Asset Management Limited to COCKENZIE STORAGE LIMITED
  • 23 Dec 2022 register
    Substation name updated in the register (from Cockenzie to Cockenzie GSP)
  • 29 Nov 2022 register
    Added to the register

Also at Meadowmill 400/132kV Substation

Substation view

1 other project, 342 MW 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