Turnkey 525 kV MI HVDC cable system in the German sector of NordLink: two parallel subsea cables over a 154 km offshore route plus two parallel underground cables over a 54 km land route, supplied and installed by NKT.
NKT delivered the German-sector HVDC cable system for the NordLink interconnector on a turnkey basis. NKT acquired ABB’s high-voltage cable business in March 2017, inheriting the Karlskrona manufacturing facility and the NordLink cable manufacturing contract that ABB had originally won as part of its $900 million EPC package in 2015. NKT’s scope covered design, manufacture, transport and installation of a 525 kV mass impregnated (MI) bipole cable system comprising two parallel subsea cables along a 154 km offshore route in the German North Sea (308 km of subsea cable) and two parallel underground cables along a 54 km land route from the landfall near Büsum to the Wilster converter station (108 km of land cable). All cables were produced at NKT’s Karlskrona plant in Sweden. NKT carried out the German landfall pull-in in June 2019 and subsequent cable laying and protection, integrating its system with the Hitachi ABB converter stations. Together with Nexans, NKT is recognised by Statnett and TenneT as one of the two cable suppliers that produced and delivered all NordLink HVDC cables.