72 Wind Turbines for 604 MW Kriegers Flak Wind Farm Installed
Jan De Nul Group installs a total of 72 wind turbines of 8.4MW each on behalf of Vattenfall Denmark. All together, these turbines will produce enough green electricity for the annual needs of approximately 600,000 Danish households. Approximately 4.5 months after the start of this installation campaign in January, Jan De Nul, Siemens Gamesa and Vattenfall deliver the 604 MW Kriegers Flak offshore wind farm.
The geographical location of the offshore wind farm offers extremely heterogeneous soil conditions with large lateral variability and boulders on the surface and below. Despite that, Jan De Nul managed to successfully deploy a Jack-Up Installation Vessel for the installation works.
In 2017 and 2018, Jan De Nul Group already designed, built and installed two large Gravity Based Foundations for the offshore high-voltage substations of this new offshore wind farm. Jan De Nul built both concrete structures of 8,000 and 10,000 tonnes on a floating pontoon in the port of Ostend (Belgium) and then towed them to Denmark. In the Baltic Sea, the crane vessel Rambiz installed both foundations on the seabed with the utmost precision.
The works have always been on schedule, thanks to the great teamwork! We are very proud to have helped Denmark in this giant leap in their energy transition.