Boskalis has secured what the company calls a “sizable” contract to transport and install the inter-array cables for the first phase of the 2 GW Zeevonk offshore wind project in the Dutch North Sea. The company, which did not disclose the exact contract value, classifies contracts as sizable if they are valued between EUR 50 million and EUR 150 million.
The Zeevonk scope for Boskalis covers the installation of approximately 149 kilometres of 66 kV inter-array cables connecting 69 wind turbines, as well as cable testing and termination, cable protection system (CPS) installation, survey work and seabed intervention.
The cables will be transported from the manufacturing facility in Eemshaven, the Netherlands, to the wind farm using Boskalis’ cable-laying vessel Boka Ocean. For seabed intervention works, Boskalis will deploy one of its subsea rock installation vessels.
Engineering activities are expected to start shortly, while the offshore installation campaign is planned to take place in 2029.
The inter-array cables for the first Zeevonk phase will be supplied by TKF under a contract the Dutch cable manufacturer signed earlier this year.
The Zeevonk project will be built around 63 to 84 kilometres off the Dutch coast near Bergen aan Zee by a joint venture between Vattenfall and Copenhagen Infrastructure Partners (CIP), which won the rights for the 2 GW Zeevonk site (IJmuiden Ver Beta) in a tender in 2024. In 2025, the partners said the project would be built in two phases.
The first phase is scheduled to deliver 1 GW of offshore wind capacity by 2029, while the second phase, targeted for completion in 2032, will add another 1 GW of offshore wind and 500 MW of system integration capacity, including an electrolyser in the Port of Rotterdam to support green hydrogen production.