ABB has installed what it says is the world's highest-voltage offshore converter station in the German North Sea.
As part of the DolWin 1 offshore wind connection project, electricity generated at three wind farms off the coast of Germany will be converted on the platform into high-voltage direct current (HVDC) and transported to the mainland. ABB says the 320 kV converter station has a power transmission capacity of 800 MW.
In a three-day operation, the 9,300 metric-ton platform (topside), including the converter station, was transported offshore by barge around 75 km off the German coast. It was then lifted by the crane vessel Thialf and positioned atop the already-installed jacket.
ABB was awarded the turnkey responsibility for system engineering, design, supply and installation of the offshore wind connection by European transmission system operator TenneT. The project scope includes the offshore converter station, the sea and land cable systems, and the onshore converter station.