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Grid infrastructure › Connection queue › Interconnector

INTERCONNECTOR · NGET

Tarchon

Tarchon is a 1.4 GW interconnector project in planning, connecting to the National Grid (England & Wales) network at East Anglia Connection Node 400kV Substation, with capacity due from October 2030. The connection agreement is held by Tarchon Energy Limited.

Project stageIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingFrom Oct 2030 (not yet reached)
  5. Closed (not yet reached)

Scoping and awaiting consents are both shown as planning. A connection agreement does not mean the project will be built: many queue projects never reach construction.

Connection details

NESO project number
PRO-001289
Customer
Tarchon Energy Limited
Technology
Interconnector
Export capacity
1.4 GW
Import capacity
1.4 GW
Change in this agreement
+1.4 GW
Capacity effective from
31 October 2030
Connection site
East Anglia Connection Node 400kV Substation
Transmission owner
National Grid (England & Wales)
Connection type
Interconnector
NESO project status
Scoping

Connection site

This project connects at a new substation (a “connection node”) that has not been built or located yet.

Projects connecting near East Anglia Connection Node · Grid map

Source: NESO interconnector register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem