End of August the jacket for the Wikinger substation was installed successfully in the Baltic Sea.
Iberdrola awarded KCI with the Concept, Basic and Detailed design of this jacket which is in fact the largest AC substation jacket ever built. The 6-legged pre-piled jacket weighs 2500 tonnes and measures 49m x 27m x 43m (LxWxH) and will support two topsides weighing 5500 tonnes in total.
First the foundation piles were driven into the sea bed. Next the six-legged jacket was set on to the foundation piles. As a last step the jacket and piles were secured together using a special temporary support system designed by KCI to hold the jacket in place during the curing of the grout. After the concrete was cured, the installation of the topsides could take place. The jacket was built by Navantia Shipyards in Cadiz and installed by Seaway Heavy Lifting's Oleg Strashnov.