
National Grid has begun consultations on three subsea and underground electricity links, including the newly proposed Eastern Green Link 5 (EGL5) project.
The 2GW, 525kV high-voltage direct current (HVDC) EGL5, being developed by National Grid and SSEN Transmission, would run approximately 345 miles (555 km) under the sea from Scotland.
It will make landfall at Anderby Creek and then continue 5.5 miles underground to a new converter station in East Lindsey, Lincolnshire.
In addition, the consultations will cover the Eastern Green Link 3 (EGL3) project, being developed with developing SSEN Transmission, and Eastern Green Link 4 (EGL4), alongside SP Energy Networks.
Both cables will make landfall at Anderby Creek on the Lincolnshire coast, with EGL3 starting at Peterhead and EGL4 at Westfield, Fife.
Underground cables will run approximately 100 km to converter stations in the Walpole area of King’s Lynn and West Norfolk, before connecting to the existing transmission network via a new substation.
National Grid is seeking feedback on the three transmission lines from people across East Lindsey, Boston and South Holland in Lincolnshire, King’s Lynn, West Norfolk, and Fenland in Cambridgeshire. The consultations will run from 13 May to 23 June 2025.
Community impact
The new round of consultations builds on previous engagement in April 2024, with National Grid looking to confirm Anderby Creek as the landfall location for EGL3 and EGL4, after removing Theddlethorpe from consideration.
In addition, the consultations will explore routing EGL3 cables entirely outside the Holderness Offshore Marine Conservation Zone, with a minimal crossing by EGL4 cables.
By consulting on the three projects together, National Grid hopes to help communities understand how the proposals are being coordinated to reduce construction impacts.
National Grid head of offshore consents Sean Stokoe said: “Eastern Green Links 3, 4 and the newly proposed EGL5 are critical to building the electricity infrastructure the UK needs for a secure, independent and more affordable energy future.
“As electricity demand is set to double, these projects will help us make the most of Britain’s offshore wind, reducing our reliance on expensive imported fossil fuels. We’re keen to hear from local communities so we can shape our plans together.”
EGL3, EGL4 and EGL5 will form part of National Grid’s Great Grid Upgrade, which includes 17 major infrastructure projects, including the EGL1 and EGL2 projects, both of which have received major funding packages and seen construction work start.
The new links are designed to carry electricity between Scotland and England in areas where there is no infrastructure.
National Grid previously doled out contracts for HVDC cables under a £59bn supply chain framework.
The deals covered equipment for EGL4, along with other connection projects such as Sealink and Lionlink.