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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 / England and Wales

JBM Solar 13 - Melksham

JBM SOLAR PROJECTS 13 LIMITED at Melksham 400kV Substation

Connection date
17 Jul 2026
Gate
Not stated
Status
Scoping
Technology
Storage + Solar
Total capacity
49.9 MW
Connected now
0 MW
Still to connect
49.9 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-000495
In the register since
August 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?

Change history

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

  • 29 Jul 2025 register
    Technology changed from Thermal to Storage, Solar
  • 27 Jun 2025 register
    Capacity changed from 50 MW to 49.9 MW
  • 27 Jun 2025 register
    Connection date moved from 14 Nov 2025 to 17 Jul 2026 (+8 months)
  • 29 Oct 2024 register
    Connection date moved from 30 Jun 2026 to 14 Nov 2025 (−8 months)
  • 23 Dec 2022 register
    Substation name updated in the register (from Melksham 400kV to Melksham 400kV Substation)
  • 30 Jun 2022 register
    Connection date moved from 30 Oct 2024 to 30 Jun 2026 (+20 months)
  • 31 Aug 2021 register
    Added to the register

Also at Melksham 400kV Substation

Substation view

5 other projects, 1.9 GW still to connect at this substation in total. 57 MW is due to connect here before this project’s connection date of 17 Jul 2026.

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