DEME has been awarded two contracts by Prysmian for the engineering and installation works for the IJmuiden Ver Alpha and Nederwiek 1 offshore grid systems in the Netherlands.

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Source: DEME

The scope of the contract includes the engineering and the 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. 

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 the southwestern part of the Netherlands. The first connection will be operational in 2029, and the second in 2030.

DEME said the two contracts have a combined value of more than EUR300 million (USD320.4 million).