Monopile Installation Completed for 315 MW Offshore Wind Farm in Germany

Van Oord has completed the transport and installation of all 21 monopiles at Iberdrola’s Windanker offshore wind farm, a key milestone in the construction of the project.

Located in the German Baltic Sea, around 45 kilometres northeast of the island of Rügen, Windanker will add 315 MW of capacity to Iberdrola’s Baltic Hub, supplying enough renewable energy to power approximately 315,000 households. 

Van Oord’s scope of work included loading the monopiles at the fabrication site in Spain and transporting them to the Port of Rønne, Denmark. Manufactured by a joint venture between Navantia and Windar, the monopiles rank among the largest ever installed by Van Oord, with a diameter of 10 metres, lengths of 70.6 to 86.6 metres, and weights of up to 2,145 tonnes. From the port, they were lifted using MTC cranes and towed by two tugs to the installation vessel Svanen.

Van Oord’s remaining scope will be delivered in two phases. The first involves transporting and installing 21 transition pieces, scheduled for completion by December 2025. This will be followed in the first quarter of 2026 by the installation of the inter-array cables, part of Van Oord’s EPCI scope, which involves interconnecting the turbines and offshore substation and supporting energy transmission throughout the wind farm.