MILAN, Italy – Prysmian Group has completed the high voltage direct current (HVDC) offshore grid connection project DolWin3 in the German North Sea.
DolWin3, the third offshore grid connection in the ‘DolWin’ cluster, links the offshore converter platform DolWin Gamma, located about 85 km (53 mi) offshore, to the German mainland to transmit renewable energy into the national grid.
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 fiber-optic cable system, covering a 78-km (48-mi) land route and an 83-km (52-mi) subsea route.
The cables were produced at the company’s facilities in Arco Felice, Italy, Pikkala, Finland, and Delft, the Netherlands.
On behalf of the Dutch-German grid operator TenneT, Alstom Grid (now GE Grid GmbH) contracted Prysmian for this project in February 2013.