BorWin3 jacket sets sail to final destination

8 May 2018, Vlissingen

Heerema Fabrication Group (HFG) has completed the construction of the jacket and piles for BorWin3. At Heerema Vlissingen the jacket for Petrofac, as part of Tennet’s BorWin3 platform, set sail.

The contract for Procurement and Construction was awarded in December 2015. Fabrication of the HVDC substation jacket and piles started in the third quarter of 2016. Koos-Jan van Brouwershaven, CEO of Heerema Fabrication Group, said: “We are proud that we successfully and safely finished the project, with a different approach to project management. Our Yard team handled the preparations right down to the details, to ensure an uninterrupted production”. 

The BorWin3 offshore platform is designed as a six legged main pile jacket with an additional four skirt piles and will be installed in the North Sea in a water depth of 40 metres and approximately 130 kilometres off the German coast. Heerema Marine Contractors executes the transportation to the offshore location and will also perform the installation. The dimensions of the jacket are 49 x 43 x 48 metres and it weighs 6,000 tons with the piles weighing 5,000 tons. The BorWin3 platform of TenneT will house a Siemens HVDC station that converts the alternating current produced by the wind turbines to direct current before transmitting it onshore to the German national grid.