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 / North Scotland

Corshellach Battery Energy Storage System

Corshellach Energy Storage Limited at Berryburn 275/33kV GSP Substation

Connection date
31 Oct 2028 +12 months since 9 Dec
Gate
Gate 2
Status
Consents Approved
Planning consent
Granted 19 Dec 2024
Northumberland, reference 24/01073/APP · Source: REPD
Technology
Storage
Total capacity
49.9 MW
Connected now
0 MW
Still to connect
49.9 MW
Transmission owner
SSEN Transmission (SHET)
Agreement type
Embedded
Region
North Scotland
Project number
PRO-002328
In the register since
June 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.

  • 18 Sep 2026 register
    Status changed from Scoping to Consents Approved
  • 28 Aug 2026 register
    Connection date moved from 31 Oct 2027 to 31 Oct 2028 (+12 months)
  • 28 Aug 2026 register
    Given a Gate 2 connection offer
  • 6 Feb 2026 register
    Connection point changed from Berry Burn GSP to Berryburn 275/33kV GSP Substation
  • 28 Mar 2025 register
    Customer changed from Renewable Energy Systems Limited to Corshellach Energy Storage Limited
  • 24 Dec 2024 register
    Connection date moved from 31 Oct 2031 to 31 Oct 2027 (−48 months)
  • 29 Aug 2023 register
    Renamed from Corshellach Batery Energy Storage System
  • 30 Jun 2023 register
    Added to the register

Also at Berryburn 275/33kV GSP Substation

Substation view

2 other projects, 160 MW still to connect at this substation in total. 43.2 MW is due to connect here before this project’s connection date of 31 Oct 2028.

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 or stage for this project, from DESNZ’s Renewable Energy Planning Database (REPD), July 2026 edition, with the planning authority and its reference. QueueWatch matched the project to that record. NESO’s status can lag behind planning decisions, so the two may differ.

How QueueWatch matches projects · Spotted a wrong match? Email info@queuequant.com.