Papendrecht-based marine services company Boskalis has been awarded a contract by Zeevonk, the joint venture between Vattenfall and Copenhagen Infrastructure Partners, for the transport and offshore installation of the inter-array cable system for phase 1 of the Zeevonk Offshore Wind Farm in the Dutch North Sea. The value of the contract is considered sizable, which Boskalis defines as a contract worth between USD 56.5 million and USD 169.5 million.

The announcement was made in a press release dated 1 October 2026 from the company's home port of Papendrecht in the Netherlands.

Scope of Work

The contract scope covers the transport and installation of approximately 149 kilometers of 66 kV inter-array cables, which will connect 69 wind turbines within the offshore wind farm. In addition to the cable laying work, Boskalis will carry out cable testing and termination activities as well as the installation of the cable protection systems.

The work also extends beyond installation itself. Boskalis will perform survey activities and seabed intervention works, for which the company will deploy one of its subsea rock installation vessels.

The transport of the cable from the manufacturing facility in Eemshaven, the Netherlands, to the wind farm, together with the offshore installation campaign, is planned to be executed using Boskalis' cable-laying vessel BOKA Ocean, which the company describes as state-of-the-art.

Engineering activities are expected to commence shortly, with offshore installation currently planned for 2029.

About the Zeevonk Offshore Wind Farm

The Zeevonk Offshore Wind Farm is located approximately 45 nautical miles northwest of IJmuiden in the Netherlands. Upon completion, the wind farm will have a total installed capacity of approximately 2 gigawatts, making it one of the largest offshore renewable energy developments in the Netherlands.

The project will be developed in two phases of approximately 1 GW each. The Boskalis scope relates to phase 1, which has a planned commercial operation date in 2029.

Zeevonk itself is a joint venture between Vattenfall and Copenhagen Infrastructure Partners, the two companies that awarded the contract to Boskalis.

Strategic Context

Boskalis notes that its strategy is aimed at leveraging key macro-economic factors that drive worldwide demand in its markets, namely the expansion of the global economy, the increase in energy consumption, global population growth, and the challenges that go hand in hand with climate change.

According to the company, this project is related to the development of generating renewable energy, driven by climate change and increasing energy consumption.

About Boskalis

Boskalis is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors. The company provides solutions to infrastructural challenges in maritime, coastal and delta regions around the world.

Its core activities include coastal defense, riverbank protection and land reclamation, allowing it to provide adaptive and mitigating solutions to combat the effects of climate change such as extreme weather conditions and rising sea levels, as well as addressing the increasing need for space in coastal and delta regions.

The company also facilitates the development of offshore energy infrastructure, including renewable wind energy, and is active in the construction and maintenance of ports, waterways, access channels and civil infrastructure. In addition, Boskalis is a global marine salvage expert and provides terminal services at various locations worldwide.

Boskalis operates a versatile fleet of more than 400 vessels and floating equipment and employs over 11,000 people.

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