Contract awarded for installation works for 800 MW offshore wind farm in Netherlands

DEME has won a substantial contract to carry out the transport and installation works for the inter-array cables and secondary steel for the 800 MW OranjeWind offshore wind farm in the Netherlands.

The wind farm is being developed by a joint venture of energy companies RWE and TotalEnergies. DEME will transport and install a total of 114 km of inter-array cables, which will connect all 53 foundations to the offshore substation in the Dutch North Sea. The extensive scope includes all the engineering, preparation, and supporting activities, ensuring that DEME will deliver a complete solution to RWE and TotalEnergies. Pre-sweeping will be conducted at the wind farm, situated 53 km from the Dutch coast, before cable installation in areas with significant sand waves to ensure the cable is buried at the required target depth. At the offshore substation and crossings of existing assets, the cables will be stabilized with rock. The secondary steel scope includes the transport and installation of boat landings, access platforms, and internal platforms at the monopile foundations. 

Scheduled to start in the second half of 2026, DEME will deploy offshore and cable installation vessels, a hopper dredger, and a fallpipe vessel, as well as additional supporting equipment.