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Jan De Nul Group Constructing offshore wind farms on an EPCI-basis Services for the offshore renewable energy industry are a key part of the services provided by Jan De Nul Group. The combination of the in-house design and detailed engineering, a very modern and well-balanced fleet, and the overall experience in dredging, marine, civil and environmental projects all over the globe enable Jan De Nul Group to offer clients a total package on an EPC(I) basis.
Jan De Nul Group 34-36 Parc d’Activités Capellen 8308 Capellen Luxembourg T +352 (0)39 89 11 F +352 (0)39 96 43 E info@jandenul.com I www.jandenul.com Jan De Nul Group @jandenulgroup Jan De Nul Group jandenulgroup Contact: Edward Van Melkebeek Director Offshore Division
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Services Jan De Nul Group provides services related to the installation of offshore wind farms, including installation of export and inter array cables, fabrication and installation of Gravity Based Foundations, transport and installation of jacket or monopile foundations and high voltage stations, installation of scour protection around the foundations, and installation of the entire wind turbines itself. Fleet Through a constant pursuit of quality and technical innovation, Jan De Nul Group owns a very modern and wellbalanced marine fleet for all stages involved in the seabed preparation, wind farm installation and ballasting of the structure.
The jack-up vessel Vole au vent was especially built to install offshore wind farms. The vessel is one of the largest of its kind in the world. The large cargo deck space and payload and the lifting capacity of its crane up to 1,400 tonnes enable swift and safe installation of the heaviest foundations and other components of offshore wind parks. The vessel is 140 metres long and is equipped with four legs to lift itself above the sea level for stable working without impact of the waves. The vessel can install all kinds of foundations, as well as the latest generation of wind turbines, in water depths up to 50 metres. The Group also disposes of cable installation vessels and in-house designed trenching tools to overcome
unnavigable tidal areas. The multipurpose vessel Isaac Newton can be deployed on a variety of projects: installing subsea cables, trench dredging and subsea rock installation, which definitely makes it unique. In cable-installation mode it is able of transporting and laying cable in a single length with a total weight of approximately 10,500 tonnes. Beginning 2017, two new multipurpose vessels were delivered: Adhémar de Saint-Venant and Daniel Bernoulli. The construction of multipurpose vessels allows Jan De Nul Group to better meet the clients’ requests to have a project executed by one contractor of one vessel and to reduce the mobilisation costs for its clients.