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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

Cambridgeshire Energy Storage Centre

Hydrostor UK Ltd at South Anglia Connection Node D 400kV Substation

Connection date
31 Oct 2037
Gate
Gate 1
Status
Scoping
Technology
Storage + Pumped storage + Thermal
Total capacity
500 MW
Connected now
0 MW
Still to connect
500 MW
Transmission owner
National Grid Electricity Transmission (NGET)
Agreement type
Direct Connection
Region
England and Wales
Project number
PRO-006115
In the register since
June 2025

Change history

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

  • 1 May 2026 register
    Marked as Gate 1
  • 7 Apr 2026 register
    Connection point changed from Burwell South 400kV Substation to South Anglia Connection Node D 400kV Substation
  • 27 Jun 2025 register
    Added to the register

Also at South Anglia Connection Node D 400kV Substation

Substation view

1 other project, 1 GW still to connect at this substation in total. 500 MW is due to connect here before this project’s connection date of 31 Oct 2037.

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