Located alongside the Danish group's 172MW Gunfleet Sands 1 and 2 developments off southeast England, Gunfleet Sands 3 is designed to test Siemens’ highest-capacity turbine.

The machines will stand 148-metres tall and feature 120-metre-diameter rotors, and the deployment will trial a range of installation and construction methods expected to help cut the cost of offshore wind.

“These will be the first two turbines of their kind to be installed offshore in the world,” says Dong Energy Wind Power’s UK country manager Benj Sykes.

“Crucial