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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
Connection date
Increase at an existing station: +420 MW from 31 Oct 2033 +95 months since 9 Dec
Gate
Not stated
Status
Built
Technology
CHP + Storage + Solar + Onshore wind
Total capacity
450 MW
Connected now
30 MW
Still to connect
420 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-000250
In the register since
January 2021 or earlier

Change history

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

  • 28 Jul 2026 register
    Capacity changed from 0 MW to 420 MW
  • 28 Jul 2026 register
    Connection date set to 31 Oct 2033
  • 28 Jul 2026 register
    Connected MW moved between stages in the register (30 MW connected, unchanged)
  • 28 Jul 2026 register
    Stage removed (30 MW connected + 420 MW)
  • 24 Jul 2026 register
    Restructured from 3 stages (17 MW connected, 420 MW from 31 Oct 2033, 13 MW connected) to 2 stages (0 MW, 30 MW connected + 420 MW)
  • 17 Jul 2026 register
    Stage 2: Connection date set to 30 Nov 2025
  • 17 Jul 2026 register
    Stage 2: Status changed from Built to Under Construction/Commissioning
  • 14 Jul 2026 register
    Stage 2: Connection date removed (was 30 Nov 2025)
  • 14 Jul 2026 register
    Stage 2: Status changed from Under Construction/Commissioning to Built
  • 10 Jul 2026 register
    Stage 2: 17 MW now connected
  • 28 Mar 2025 register
    Substation name updated in the register (from High Marnham GSP to High Marnham 275kV Substation)
  • 28 Mar 2025 register
    Stage 1: Technology changed from CHP, Solar to CHP, Storage, Solar, Onshore wind
  • 28 Mar 2025 register
    Stage 2: Connection date moved from 6 Sep 2019 to 30 Nov 2025 (+75 months)
  • 28 Mar 2025 register
    Stage 2: Technology changed from CHP, Solar to CHP, Storage, Solar, Onshore wind
  • 28 Mar 2025 register
    New stage added (420 MW from 31 Oct 2033)
  • 29 Oct 2024 register
    Stage 1: Technology changed from CHP to CHP, Solar
  • 29 Oct 2024 register
    Stage 2: Technology changed from CHP to CHP, Solar
  • 23 Dec 2022 register
    Substation name updated in the register (from High Marnham to High Marnham GSP)
  • 26 Feb 2021 register
    Stage 2: Connection date moved from 9 Jun 2019 to 6 Sep 2019 (+3 months)

Also at High Marnham 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