Prysmian Group has commissioned the Dolwin 3 high voltage direct current (HVDC) grid connection project in offshore Germany
Prysmian was awarded the project in February 2013 in the form of a contract from Alstom Grid (now GE Grid GmbH) on behalf of the Dutch-German grid operator TenneT.
DolWin3, the third offshore grid connection in the DolWin cluster, links the offshore converter platform DolWin Gamma, located approximately 85 km offshore in the North Sea, to the German mainland.
Prysmian was responsible for the supply, installation and commissioning of the HVDC ± 320 kV extruded submarine and land power cable connections with a rating of 900 MW and the associated fibre optic cable system, covering a 78-km land route and an 83-km subsea route.
The cables were produced at the Prysmian Group’s manufacturing centres in Arco Felice, Italy; Pikkala, Finland; and Delft, the Netherlands.
Prysmian has a longstanding relationship with TenneT, which in recent years has awarded a total of seven HVDC grid connection projects to the company, Prysmian, including BorWin2 and BorWin3, Helwin1 and HelWin2, SylWin1 and the recently awarded DolWin5.