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Willem de VlaminghJan De Nul Group has completed the export cable installation works in the German North Sea in order to connect the offshore wind farms Trianel Windpark Borkum II, developed by Trianel, and Borkum Riffgrund II, developed by Ørsted, to Tennet’s German transmission grid.
 
For both cable installation projects, Jan De Nul Group’s cable laying vessel Willem de Vlamingh and trenching support vessel Adhémar de Saint-Venant were mobilised. The first two cables connect the Borkum Riffgrund II wind farm substation with the Dolwin Gamma convertor station. The third cable connects the Trianel Windpark Borkum II with the Dolwin Alpha convertor station. These Dolwin platforms convert the electricity generated by the two wind farms into Direct Current (DC) before transporting it to Tennet’s onshore network. The Greek cable manufacturer Hellenic Cable is currently terminating and testing the cable connections. Overall commissioning is planned in June/July 2018.
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