German transmission system operator TenneT has taken control of the 900MW BorWin3 grid hub in the German North Sea.
The TSO took the reins from contractors Siemens and Petrofac after several months of trial operations, which started last August.
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The project connects EnBW’s 497MW Hohe See and the 400MW Global Tech 1 offshore wind farms to the German grid.
At Emden/Ost in Germany, TenneT built a converter station with a substation to feed the energy generated at sea into the extra-high voltage grid on land, covering a total distance of 160km, including a 130km submarine cable.
The power via the submarine cable is transported to Hamswehrum and to the west of Borkum, and from there is transmitted via a 30km underground onshore cable to Emden/Ost.