THE NETHERLANDS — TenneT has signed multi-year framework agreements with Allseas and Heerema Marine Contractors for transport and installation of at least 14 2-GW offshore platforms.
The fourteen 2-GW converter stations will be installed in the Dutch and German parts of the North Sea. The framework agreement covers at least 28 slots until 2031—14 slots for transport and installation of a jacket and 14 slots for transport and installation of a topside.
Heerema has been awarded about 60% of the available slots, while Allseas has been awarded about 40% of the slots. Additional work can be added to the awarded contracts. The awarded slots are not linked to specific 2-GW projects.
The HVDC suppliers building the jackets and topsides for TenneT (Hitachi Energy/Petrofac, GE/Sembcorp, GE/McDermott and Siemens/Dragados) can choose from the suppliers whereby Heerema and Allseas can install both jackets and topsides.
Boskalis will act as a subcontractor to Allseas, building one or two new transport vessels specifically for the 2-GW program that will meet the most stringent future legislation standards on sustainability and emissions.