Siemens Power Transmission and Distribution (PTD) has connected the "Fehmarn Mitte" wind farm to the 110-kV high-voltage system on the Schleswig-Holstein mainland of Northern Germany following modernisation and upgrading of the farm's capacity.

This represents a large portion of Germany's currently biggest wind power repowering project, which will ultimately have a total capacity of 130MW (150 MVA). By the next years, 120 obsolescent wind turbines on the island Fehmarn are to be dismantled and replaced by about 70 new machines of higher capacity. Up to now 27 obsolescent turbines were dismantled.