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

West Caulder BESS

GPC Project 13 Ltd at Harburn 400kV

Connection date
31 Oct 2033
Gate
Not stated
Status
Scoping
Technology
Demand + Storage
Total capacity
250 MW
Connected now
0 MW
Still to connect
250 MW
Transmission owner
SP Energy Networks (SPT)
Agreement type
Direct Connection
Region
South Scotland
Project number
PRO-003234
In the register since
July 2023

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.

  • 19 Dec 2025 register
    Renamed from West Caulder 250MW BESS
  • 31 Oct 2025 register
    Connection date moved from 30 Oct 2030 to 31 Oct 2033 (+36 months)
  • 29 Aug 2025 register
    Connection point changed from Grangemouth 275/33kV to Harburn 400kV
  • 29 Jul 2025 register
    Renamed from Nicolton Road BESS
  • 29 Jul 2025 register
    Customer changed from Apatura Battery Ltd to GPC Project 13 Ltd
  • 27 Jun 2025 register
    Connection point changed from Nicolton Road 275kV Substation to Grangemouth 275/33kV
  • 27 Jun 2025 register
    Technology changed from Storage to Demand, Storage
  • 28 Jun 2024 register
    Customer changed from GPC Battery Ltd to Apatura Battery Ltd
  • 27 Feb 2024 register
    Connection point changed from Grangemouth 275/33kV to Nicolton Road 275kV Substation
  • 28 Jul 2023 register
    Added to the register

Also at Harburn 400kV

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