The offshore grid connection BorWin3 operated by TSCNET shareholder TenneT in the German Bight is ready for feed-in since early August. This means that the total transmission capacity for offshore wind farms in the German North Sea is already 7.132GW. The Dutch-German transmission system operator (TSO) has thus not only met the German government’s expansion targets for sustainable North Sea wind power – 6.5GW by 2020 – but has significantly exceeded them.
BorWin3, TenneT’s twelfth offshore grid connection project, brings a further 900MW capacity. After BorWin1 and BorWin2, it is the third connection that the TSO has implemented near the East Frisian island of Borkum using DC technology. The corresponding converter and transformer station were built at TenneT’s Emden/Ost site to feed the green energy into the onshore extra-high voltage grid. BorWin3 bridges a total distance of 160km. The submarine cable is 130km long and the last section ashore to Emden/Ost is completed by underground cabling.
The TSO can be satisfied with its own offshore progress, but TenneT Managing Director Tim Meyerjürgens calls for further efforts, as the current rate of offshore wind expansion in Europe is not sufficient to achieve the goals of the Paris Climate Agreement. “An accelerated, large-scale and internationally coordinated expansion is necessary,” explains Meyerjürgens. In this context, TenneT has just presented a feasibility study of the North Sea Wind Power Hub concept for the implementation of wind power distribution hubs in the North Sea. Meyerjürgens points out that with an internationally coordinated approach the connection and integration of large offshore wind energy capacities could be much more effective and cost-efficient than with continued individual national planning.
In early August, the offshore grid connection BorWin3 of TenneT was put into operation (picture of the offshore converter platform BorWin gamma: TenneT)
> See TenneT press release, in German (html)