Cable manufacturers NKT and Prysmian have won massive contracts for the 4GW SuedLink corridor, one of three planned high-voltage direct current (HVDC) lines to transport electricity from wind farms at Germany’s coast and at sea to industry and population centres in the country’s South.

NKT has been awarded it largest order ever, worth more than €1bn ($1.1bn), by transmission system operators TenneT and TransnetBW to supply and install a 525 kilowatt XLPE HVDC onshore cable system of around 750 kilometres that it says will be the world’s largest and longest HVDC underground interconnector.