Jan De Nul jack-up suffers damage during typhoon

4C Offshore | Tom Russell
By: 16/09/2022 Jan De Nul

Jan De Nul has revealed its latest jack-up installation vessel,
Voltaire , has suffered damaged after typhoon Muifa passed over the shipyard where it is being constructed  in China.

During the night of 14 -15 September 2022 the eye of the typhoon passed over the shipyard, causing the vessel to come loose from its moorings. The company outlined that no one was injured and the vessel is now moored back in the shipyard and first sight assessments show limited damage to certain parts of the crane and the helideck. Further assessments are ongoing.

Voltaire is specifically designed to transport, lift and install offshore wind turbines, transition pieces and foundations for current and future developments. Jan De Nul claims that the 181 metre long vessel will have better operational limits compared to the existing jack-up installation vessels.


Using its crane and jacking legs, the vessel is said to be capable of reaching one meter higher than the Eiffel Tower. With a lifting capacity  of 3,000 tones, the crane is designed to support the installation of the offshore wind turbines of the future, with turbines over 270 metres high and blades 120 metres long. The crane house weighing 1800 tonnes and it has a boom length of 140 metres ,weighing 800 tonnes. According to Jan De Nul  it is the largest Leg Encircling Crane ever built. It has an operating depth of approximately 80 meters, a payload of about 14,000 tonnes and accommodation for 100 persons.

Compared to Jan De Nul’s other jack-up vessel, this new vessel has almost double the deck space. Furthermore, the vessel will be able to run on second-generation biodiesel that reduces the fuel carbon footprint by up to 90%.
It is equipped with a dual exhaust filter system, removing up to 99% of nanoparticles from emissions using a diesel particulate filter (DPF) and reducing the NOx emissions and other pollutants by means of a selective catalytic reduction system (SCR) to levels in accordance with EU Stage V regulation.


For more information on offshore wind farms worldwide, click here.