50Hertz Transmission GmbH has issued a tender for boulder removal services along the submarine export cable routes between the offshore wind farms in the German Baltic Sea and the landing point in Lubmin.
The tender, part of the Cluster Westlich Adlergrund 2 Ostwind 2 project, is divided into three lots and covers the removal of all boulders with a diameter of 50cm or larger from three export cable corridors – OST-2-1, OST-2-2 and OST-2-3.
The corridor width is 12 metres, or 15m with water depths of more than 20m.
The OST-2-1 cable will connect the Arcadis Ost 1 offshore wind farm to the German grid, OST-2-2 is for the Baltic Eagle wind farm, and OST-2-3 will connect the Baltic offshore wind farm.
The tender remains open until 2 July.