Jan De Nul's latest heavy lift vessel leaves the shipyard

4C Offshore | Tom Russell
By: Tom Russell 19/01/2023 Jan De Nul

Jan De Nul announced its new heavy lift vessel Les Alizés has left the CMHI Haimen Shipyard in China and is currently heading for Europe. The 236 metre vessel is now the largest heavy lift vessel in Jan De Nul’s fleet, designed able to install XXL offshore wind components in floating conditions and with ultra-low emissions.

Les Alizés is specifically designed for loading, transporting, lifting and installing offshore wind turbine foundations. It features a main crane of 5,000 tons, a deck loading capacity of 61,000 tons and a deck space of 9,300 m². The vessel was delivered by the shipyard on 16 January and has departed this morning (19 January 2023).

In order to reduce the vessel’s CO2 emissions, the power plant on board is a hybrid setup. The arrangement combines diesel-driven generators with battery and drive technology in an effort to optimise engine loading and to recover the potential energy returned from the heavy lift crane. To further reduce the carbon footprint of installation activities, the vessel can run on second-generation biodiesel is which Jan De Nul claims can reduce the fuel carbon footprint by up to 90%.


It is equipped with a dual exhaust filter system, designed to remove 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.

Les Alizés’ maiden voyage sets sail to Europe for her first mission in Germany: the transport and installation of 107 monopile foundations and one offshore substation topside at Ørsted’s Gode Wind 3 and Borkum Riffgrund 3 offshore wind farm
.