Boskalis awarded contract to install inter-array cables at Zeevonk Offshore Wind Farm
Type: Supply Agreement · Technology: Offshore Wind · Country: Netherlands · Capacity: 2 GW · Announced: 2026-10-01
Boskalis was awarded a contract by Zeevonk to transport and install about 149 kilometres of 66 kV inter-array cables connecting 69 wind turbines for the first phase of the Zeevonk Offshore Wind Farm, in a deal valued between $58 million and $174 million. The project is located about 45 nautical miles northwest of IJmuiden in the Dutch North Sea and the contract covers cable testing and termination, installation of cable protection systems, survey and seabed intervention work. Cables will be transported from a manufacturing facility in Eemshaven and installed using Boskalis' cable-laying vessel BOKA Ocean, with a subsea rock installation vessel deployed for seabed intervention; engineering is due to start shortly and offshore installation is planned for 2029. Zeevonk is a joint venture between Vattenfall and Copenhagen Infrastructure Partners and the wider development is planned to have around 2 GW of installed capacity across two ~1 GW phases, with commercial operations for the first phase planned for 2029. The award strengthens Boskalis' offshore wind operations in Europe and secures a major export and installation scope for assets manufactured in Eemshaven ahead of the 2029 installation campaign.
Analysis
Boskalis was awarded a contract by Zeevonk to transport and install about 149 km of 66 kV inter‑array cables for 69 turbines in the first phase of the Zeevonk Offshore Wind Farm, a project of roughly 2 GW capacity located 45 nm northwest of IJmuiden in the Dutch North Sea, with contract value estimated between $58 million and $174 million. Zeevonk is a joint venture of Vattenfall, a European energy company, and Copenhagen Infrastructure Partners, a fund manager with €37 billion AUM and a 150 GW pipeline across more than 30 countries. Boskalis, a Papendrecht‑based contractor operating in 70 countries, will use its cable‑laying vessel BOKA Ocean and a subsea rock installation vessel to transport cables from Eemshaven and perform testing, termination, protection, survey and seabed intervention work. Engineering is set to start shortly with offshore installation scheduled for 2029.
Key points
- Contract awarded to Boskalis by Zeevonk for 149 km of 66 kV cables
- Value range of the contract: $58 million to $174 million
- First phase includes 69 wind turbines and targets 2 GW total capacity
- Installation to use BOKA Ocean vessel and subsea rock installation vessel
- Offshore installation planned for 2029, 45 nm northwest of IJmuiden
Counterparties
- Vattenfall (Parent Company)
- Zeevonk (Buyer)
- Copenhagen Infrastructure Partners (Parent Company)
- Boskalis (Supplier)
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