Jan De Nul and LS Cable & System have secured a contract to connect the 700MW Hollandse Kust North and half of the 1.4GW Hollandse Kust West project to the Dutch mainland.
Grid operator TenneT has contracted the companies to install the links for the projects, which are due online in 2023 and 2024 respectively.
Jan De Nul will be responsible for transportation, laying and protection of the cables that will be designed and manufactured by South Korea-based LS Cable.
The project cables and associated infrastructure for both projects will be installed in 2022 and 2023.
Jan De Nul’s vessel Isaac Newton will install the cables supported by its Adhemar de Saint-Venant vessel.
Hollandse Kust North and a circuit from one of two 700MW substations in Hollandse Kust West, named West Alpha, will feature two 220kV alternating current (AC) cable systems.
The four cable systems will cover a total length of 210 km, connecting the wind farms to the onshore grid near Beverwijk, north of Ijmuiden port.
TenneT offshore project director for Hollandse Kust Noord and West Alpha Dick Lagerweij said: “Since the third quarter of 2018 TenneT has prepared the project documents for offshore cable installation.
“Five bidders were qualified to submit their proposals and in early 2020 we concluded that the consortium was best placed to win this contract.
“We are aiming for completion of the project as a whole by 2023, and the offshore cable installation, including beach works and termination to the platforms, is a vital part of the project. We are looking forward to a positive cooperation.”
Jan De Nul offshore director Philippe Hutse said: “We are proud to have been selected by TenneT to take on this project together with our partner LS Cable & System.
“Our versatile offshore installation vessels are ideally suited to bring this project to a successful conclusion. Thanks to its very large carrying capacity, our cable laying vessel Isaac Newton will load the cables in South Korea and transport them to the Netherlands for installation with a minimum number of offshore joints.”
The multi-purpose support vessel Adhemar de Saint-Venant will execute the post-lay trenching works and the rock protection works at the subsea crossing locations, said Jan De Nul.