Heerema Marine Contractors’ heavy-lift vessel Thialf has installed the first foundations at the Bałtyk 2 & 3 offshore wind farms, owned by Equinor and Polenergia, which said on 25 May that “the first dozen sets of monopiles and transition pieces” were in place at the project site in the Polish Baltic Sea.

The monopiles, measuring around 50 to 70 metres in length, are being installed using a specialised gripper frame before 17-metre-tall transition pieces are mounted on top. A total of 100 monopile and transition piece sets will be installed across the two offshore wind farms.