French subsea power cable manufacturer Nexans and transmission system operator TenneT have signed cancellation contracts for the BalWin3 and LanWin4 offshore grid connection projects to connect North Sea offshore wind farms to the German grid. The contracts, worth a total of €5.5 billion, will be responsible for the engineering, procurement, construction and installation of high-voltage direct current (HVDC) cables. Nergesen will use its new 525 kV HVDC XLPE cable technology and innovative "quad-bundle" cabling method on the project.