OST-6-1 installation campaign successfully completed

The Zingst and Darß offshore substations were delivered by the HSI Joint Venture, comprising Smulders HSM and Iv, as part of its full EPCIC scope. Using Pioneering Spirit, we installed the structures during a single offshore campaign, showcasing the vessel's unique installation capabilities. 

The project also demonstrated the versatility of our jacket lift system (JLS), which was used to install not only the suction bucket jackets but also the topsides – a solution developed to overcome the shallow-water conditions.

Developed by transmission operator 50Hertz, OST-6-1 will connect the Gennaker wind farm located 15 kilometres off Germany's Darß peninsula, which will be the largest offshore wind farm in the Baltic Sea. With a capacity of more than 900 MW, it will supply electricity to around one million households.

The successful completion of this project reinforces Allseas' role in delivering strategic offshore energy infrastructure across Europe.