LionLink 525 kV bipole HVDC hybrid interconnector cable system between the Dutch offshore grid (Nederwiek 3 area) and the GB grid in Suffolk, comprising subsea and underground sections.
Sumitomo Electric Industries was selected by National Grid as one of six HVDC cable suppliers under a multi‑billion‑pound framework that will serve early projects including LionLink. Through this framework, Sumitomo is positioned to deliver design, production and offshore installation of 525 kV HVDC subsea power cables for the LionLink interconnector, potentially drawing on its planned UK manufacturing base. The framework award relates to the development and construction stages, securing future manufacturing capacity and technical support for LionLink, but National Grid has not yet disclosed specific LionLink call‑off contracts or the share of cable length to be supplied by Sumitomo.