DEME has been awarded two contracts by cable solutions provider Prysmian for engineering and installation work on the IJmuiden Ver Alpha and Nederwiek 1 offshore grid systems in the Netherlands. This is the most extensive cabling award in DEME’s history and marks the company’s first project involving Prysmian’s 525 kV HVDC cable technology, featuring increased transmission capacity.
The contracts exemplify DEME’s integrated solutions approach, encompassing cable installation, landfall and rock placement, dredging, and marine infrastructure works. This includes the engineering and installation works of two 12-km-long 525 kV HVDC cable systems within the lake “Veerse Meer” and 126 km of 525 kV HVDC cable system offshore.
Additionally, DEME will carry out preparation and supporting works for IJmuiden Ver Alpha, comprising route preparation, surveys, landfalls and rock placement, as well as pre-sweeping and rock placement works for the Nederwiek 1 project. DEME will deploy a variety of vessels from its fleet, including cable installation vessels, hopper dredgers and a fallpipe vessel. In addition, the project will encompass the beach works and cofferdam structures at the cable landing locations.
The works are scheduled to begin in stages from 2025.
IJmuiden Ver Alpha and Nederwiek 1 are offshore grid connection systems operated by TenneT that will link two future offshore wind farms in the Dutch North Sea to the province of Zeeland in southwestern the Netherlands. The first connection will be operational in 2029, and the second in 2030.
Original announcement: DEME Group
Image: Courtesy of DEME Group
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