ARNHEM, the Netherlands—TenneT has appointed NKT and Prysmian to supply and install five 525-kV XLPE HVDC cable connections for five Dutch 2-GW wind farm developments in the Dutch North Sea, for completion between 2028 and 2030.
NKT will deliver the cable connections for IJmuiden Ver Beta, IJmuiden Ver Gamma and Nederwiek 2, landing onshore at Maasvlakte in the port of Rotterdam.
Prysmian will perform the cable connections for IJmuiden Ver Alpha and Nederwiek 1, landing onshore at Sloegebied in Zeeland province.
The work scope for both contracts includes design, engineering, production, delivery and project management; offshore, nearshore and inshore installation of 525 kV HVDC cables; and all jointing of submarine and land sections.
Activities should start this year, with offshore cable laying due to get underway in 2026.
For the tender, TenneT asked the suppliers to achieve substantial CO2 and NOx emission reductions, and to use recycled copper. To improve safety, the cable suppliers will invest in new production capacity, vessels and trenching tools (when needed).
A 2-GW direct current (HVDC) solution, based on 525 kV, requires only one cable system, comprising four cables, a 'plus' and 'minus' pole cable, a metallic return cable and a fiber-optic cable.