The grid connection, which is now in commercial operation, can transmit 800MW of clean electricity from wind power, which is enough to supply around one million German households.
Siemens Energy Management Division CEO Jan Mrosik said: "This is the first offshore grid connection worldwide to take up commercial operation with efficient direct-current technology.
"We are proud that Siemens mastered and completed this demanding and challenging project, despite the many difficulties that working far out at sea presented."
The 51m-wide and 72m-long BorWin2 grid connection’s offshore platform is located around 100km off the German coast, northwest of the Borkum Island.
TenneT TSO managing board member Lex Hartman said: "The BorWin2 link is a major contribution to the energy transition.
"The connection’s capacity of 800 megawatts is equivalent to the capacity required for supplying one million private households."
Currently, Siemens is under contract to implement five North Sea grid connection projects for TenneT, which includes HelWin1 (576MW) and HelWin2 (690MW) off Helgoland, BorWin2 (800MW) off Borkum and SylWin1 (864MW) off Sylt.
Prysmian is responsible for providing cabling services for the BorWin2 offshore grid connection.
