• Our Vessels

O-Class Windfarm Installation Vessels

Our highly adaptable and well-maintained vessels provide a safe, efficient and reliable solution for your windfarm installation, maintenance, and decommissioning projects. The O-Class are well suited for all turbines on the market and operations even in the most challenging conditions, thanks to advanced specifications, high-quality equipment and experienced crews. 

The Cadeler windfarm installation vessel (WIV) design has an advanced specification that sets the new industry benchmark for vessel transit speed, lifting capability, DP station keeping and jacking speed, offering a significantly improved operating weather window.

The vessels are fitted with high-quality equipment, supported by advanced preventative maintenance systems and incorporate a significant level of operating redundancy. Safety is enhanced through a 6-leg design that allows the WIVs to operate even on sites with the most challenging seabed conditions. With a large cargo area and high capacity deck loading, our vessels offer considerable flexibility in the transport and installation of turbines and foundations of all types and sizes. They are operated with the maximum level of precision by experienced crews and offer highly functional facilities for the crews onboard. 


Technical specifications

Download specification sheets here:

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Wind Osprey – Capable of installing the new generation of turbines

Wind Osprey is now equipped with 1,200 t main crane – 132 m hook height above deck. The boom has a simplified design focused on providing efficient wind turbine installations, with optimisations driven by experience.

Wind Osprey is capable of handling the new generation of WTGs, such as SG 11.0-193 DD, V164-10.0 MW, V174-9.5 MW and GE Haliade-X 12MW.



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Fairway House
Arne Jacobsens Allé 7
DK-2300 Copenhagen S

Tel : +45 3246 3100
Email: enquiry.DNK@cadeler.com 



12th Floor, No. 129, Minsheng E. Rd, Section 3
Songshan District
Taipei City

Tel: +886 9 5583 9202
Email: enquiry.TWN@cadeler.com