Lykke Friis, the Danish energy and climate minister, on Tuesday inaugurated the Rosand II wind farm between the German island of Fehmarn and the Danish island of Lolland.
The wind farm is the biggest in E.ON's portfolio and one of the largest offshore wind projects in the world, the company said. The wind farm can produce 207 megawatts of energy from its 90 wind turbines, enough to meet the energy demands of 200,000 homes.
"We now have gathered enough experience to master the further challenges in the German North and Baltic Seas," said Frank Mastiaux, the top executive at E.ON's renewables division.
E.ON invested more than $275 million in the offshore wind farm with German engineering company Siemens. The project, the German company added, was completed three months ahead of schedule.