The Rostock-based company used anewly-installed Haeusler bending  machineto manufacture the ring from a plate measuring  31.4 metres long, threemetres wide and 95mm thick.

Current monopiles have diameters of up to around six metres,limiting the foundations to water depths of around 30 metres. To move thetechnology into waters of 40 metres or more, monopiles would have to be around eight metres in diameter and 70 metres long.

“EEW