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INTERCONNECTOR · NGETThe Superconnection
The Superconnection is a 1.8 GW interconnector project in planning, connecting to the National Grid (England & Wales) network at Birkhill Wood 400kV Substation, with capacity due from October 2037. The connection agreement is held by Asc Energy plc.
Project stageIn planning
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 2037 (not yet reached)
- 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-001284-2
- Customer
- Asc Energy plc
- Technology
- Interconnector
- Export capacity
- 1.8 GW
- Import capacity
- 1.8 GW
- Already connected
- 1.0 GW
- Change in this agreement
- +800 MW
- Capacity effective from
- 28 October 2037
- Connection site
- Birkhill Wood 400kV Substation
- Transmission owner
- National Grid (England & Wales)
- Connection type
- Interconnector
- NESO project status
- Scoping
- Connections reform gate
- Gate 1
Connection site
The connection site could not be placed on the map.
Other projects at Birkhill Wood 400kV Substation
- Continental LinkInterconnector · 1.8 GW · Scoping
- Dogger Bank D Offshore Wind FarmOffshore wind · 1.5 GW · Scoping
- Dogger Bank South EastOffshore wind · 1.5 GW · Scoping
- Dogger Bank South WestOffshore wind · 1.5 GW · Scoping
- The SuperconnectionInterconnector · 1.0 GW · Scoping
- Dogger Bank South EastOffshore wind · 400 MW · Scoping
- Dogger Bank South WestOffshore wind · 400 MW · Scoping
Source: NESO interconnector register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem