Go-ahead for the Kent to Suffolk cable

The government has granted development consent for National Grid's Sea Link project, a roughly £3bn subsea power cable running 138km between Pegwell Bay in Kent and the Suffolk coast near Aldeburgh, trade and local press reported this week. The two gigawatt high voltage direct current link, enough to supply around two million homes, is part of National Grid's wider Great Grid Upgrade and is expected to start construction in early 2027, with completion pencilled in for the early 2030s.

Siemens Energy will build the converter stations at Saxmundham in Suffolk and Minster in Kent, while Sumitomo Electric holds the contract to supply and install the subsea cable, which is being manufactured at a new £350m factory under construction at the Port of Nigg in Scotland. National Grid's own planning documents put the peak construction workforce in Kent at around 241, with roughly 35 and 20 net new jobs a year expected within commuting distance in Kent and Suffolk respectively once the project is under way.

Why it matters

Sea Link is one of a string of subsea and onshore reinforcement projects National Grid needs to connect offshore wind and nuclear generation to demand centres, and it is a useful marker of how that pipeline is actually landing on the ground. The project's cost is still contested: National Grid has submitted £3.2bn to Ofgem, which has provisionally allowed £2.9bn, so expect further negotiation on the final budget before contracts are fully let locally. But consent is the gate that matters for hiring, because it is the point at which a scheme moves from planning risk to a confirmed programme that site teams can be built around.

What it means for your career

This is a project for people willing to go where the work is rather than wait for it to come to them. Kent and Suffolk are not traditional hotspots for major civils employment, and that scarcity of local resource is exactly why experienced site managers, civil engineers and HV-capable project staff will be in demand there from 2027. Converter station construction calls for a different skill set to general civils work, specifically people comfortable with electrical infrastructure and heavy plant on confined coastal sites, so anyone with substation or HVDC experience from other grid schemes has a genuine edge.

For commercial and QS staff, the near term opportunity is in the supply chain rather than the main contract: subcontract packages for cabling, civils and marine works will be let well before 2027, and getting known to Siemens Energy and Sumitomo Electric's UK teams now is better timing than waiting for recruitment adverts once the diggers arrive.