ROTTERDAM, the Netherlands – Van Oord’s heavy lift vessel Svanen has installed the final foundation for Vattenfall’s Kriegers Flak offshore wind farm in the Danish sector of the Baltic Sea.
A total of 72 monopiles were transported floating from Rostock, Germany, directly to the offshore site, 15-40 km (9.3-25 mi) from the Danish coast. The transition pieces were transported on barges from Aalborg, Denmark.
The Svanen installed all the monopiles ahead of schedule, the company said.
Van Oord’s fleet for this project consisted of 10 vessels. To reduce the underwater noise a ‘double big bubble curtain’ was used during pile driving.
According to Vattenfall, cable installation and testing is scheduled to be completed in November, and turbine installation is expected to start in early 2021.
With a production capacity of just over 600 MW, Kriegers Flak will be Denmark’s largest offshore wind farm and is scheduled to be fully operational in 2021. When the wind farm is in full production, it will increase the country’s yearly electricity production from wind by 18%, equivalent to roughly 600,000 Danish households’ annual electricity consumption.