epa07017608 A general view of the wind farm 'Arkona' in the German Baltic Sea near the island of Ruegen, Germany, 13 September 2017. The currently largest wind farm in the Baltic Sea is in its final construction phase with 40 of the planned 60 wind turbines already built. The last turbine is expected to be installed by the end of October 2018. The wind park with a capacity of producing up to 385 megaWatts of electric power costs 1.2 billion euros. It is planned to start its electricity production at the beginning of the year 2019. EPA/JENS KOEHLER