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First Foundation for Kriegers Flak Installed

Kriegers FlakThis weekend, the first gravity based foundation (GBF) for the offshore windfarm Kriegers Flak was installed in Denmark, marking another milestone in this project.
It concerns a 8,000t GBF which was floated off a semisubmersible barge and towed to the installation location where the heavy lift vessel Rambiz in combination with an in-house designed ballast module set the structure down onto the seabed.

The second GBF, weighing 10,000t, will be installed as soon as possible, depending on the weather conditions. Once the foundations have been installed, multipurpose vessel Adhémar de Saint-Venant will start with ballasting and scour protection works. Both foundations were constructed by Jan De Nul Group on a barge in the Port of Ostend in Belgium. The barge was towed to Denmark on 8 January 2018.

Jan De Nul Group and Smulders joined forces to build the two GBFs for the high voltage station of the Danish offshore windfarm Kriegers Flak. Both foundations consist of a GBF and a steel structure on top. Jan De Nul Group was responsible for the design and construction of the concrete GBF, while Smulders took care of the design and construction of the steel shafts and decks placed on top.

Kriegers Flak, located in the Baltic Sea, will consist of two parts. Kriegers Flak A, the west section, will have a total capacity of 200MW. The east section, Kriegers Flak B, will have a total capacity of 400MW. Each section will dispose of its own substation, serving both for the future Krieger Flaks offshore windfarm as well as an interconnector between the Danish and German power net. By 2022, Denmark’s to date largest offshore windfarm will start generating electricity for approximately 600,000 households. The interconnector project is funded by the European Energy Programme for Recovery.