DNV will certify an offshore wind converter station being built by grid operator TenneT in the German sector of the North Sea.

DNV will provide full approval services for the design, manufacture, installation and commissioning of the high voltage direct current (HVDC) converter station DolWin alpha which will be located some 60 kilometres offshore close to the Dutch border in 27 metres of water. The station, of which the topsides will weigh more than 10,000 tons, will take the electrical output from nearby offshore wind farms, convert it from alternating to direct current and transmit it to shore in Germany.