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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

Sizing John (Rainhill)

SIZING JOHN LIMITED at Rainhill GSP

Connection date
25 Sep 2026
Gate
Not stated
Status
Consents Approved
Technology
Storage
Total capacity
143 MW
Connected now
57 MW
Still to connect
85.5 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-001581
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?

Stages

StageConnected MWAdds MWCumulative MWDateGateStatus
157057NoneNot statedBuilt
2085.5142.525 Sep 2026Not statedConsents Approved

Change history

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

  • 29 Jul 2025 register
    Stage 1: 57 MW now connected
  • 29 Jul 2025 register
    Stage 1: Status changed from Consents Approved to Built
  • 24 Dec 2024 register
    Stage 1: Connection date moved from 30 Oct 2024 to 31 Oct 2024 (1 day later)
  • 29 Dec 2023 register
    Restructured from 1 stage (143 MW from 30 Oct 2024) to 2 stages (57 MW from 30 Oct 2024, 85.5 MW from 25 Sep 2026)
  • 23 Dec 2022 register
    Substation name updated in the register (from Rainhill to Rainhill GSP)
  • 31 May 2022 register
    Capacity changed from 57 MW to 143 MW
  • 31 Aug 2021 register
    Added to the register

Also at Rainhill GSP

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