UK government approves Sea Link 2 GW subsea electricity connection
Published · Updated
What happened
The UK government gave approval for Sea Link, a 2 GW undersea transmission connection between Suffolk and Kent being developed by National Grid.
Why it matters
The approval clears a grid infrastructure project intended to increase transfer capacity, reduce network constraints and support movement of domestic electricity generation across the system. It also creates immediate next-step requirements on delivery, local mitigation, regulatory treatment and timetable credibility.
The UK government approved Sea Link on 30 October 2026, authorising National Grid's planned 2 GW undersea electricity connection between Suffolk and Kent. The project is intended to move electricity from areas with rising generation output to demand centres in the south and east of England. The approval turns a long-running network proposal into a live delivery programme with planning, financing and implementation consequences for the power system over the near term.
Watch for
National Grid filing of post-consent delivery milestones or procurement timetable for Sea Link by 2026-11-04 Ofgem statement on cost recovery, delivery oversight, or network-allowance treatment for Sea Link by 2026-11-04 Department for Energy Security and Net Zero publication of approval documents, conditions, or mitigation requirements for Sea Link by 2026-11-03 Suffolk or Kent local authority acknowledgement of next-step construction planning or legal challenge position by 2026-11-04
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