The wind farm comprises 90 Siemens turbines, each with a generating capacity of 2.3MW and a rotor diameter of 93m.

E.ON has invested approximately €400m in Rosand II, which is expected to generate enough renewable energy for about 200,000 Danish homes.

The power project is located to the south of the island of Lolland and its predecessor offshore wind farm, Rodsand I, began operations in 2003.

Besides Rodsand II, two other E.ON offshore wind farms – Robin Rigg in UK and alpha ventus in Germany – became fully operational this year.

Since 2001, E.ON has invested more than €1bn for offshore projects and will further expand its capacity with a project pipeline of more than 4GW, the company said.