Jan De Nul Group announces that it has officially started the T&I contract for the construction of Ørsted’s 242 MW Gode Wind 3 and 900 MW Borkum Riffgrund 3 offshore wind farm in Germany.
The first batch of 3 monopile foundations has left Steelwind’s yard in Nordenham (Germany) to Eemshaven (The Netherlands), which is part of Groningen Seaports.
Jan De Nul’s scope includes the transport and installation of 106 wind turbine monopile foundations and one offshore substation foundation, including associated topside.
Subcontractor Wagenborg has deployed its ‘WAGENBORG BARGE 8’ under tow from the tug Waterlines for the transport of the monopiles foundations from Steelwind’s yard in Germany to marshalling harbour Eemshaven in The Netherlands.
In the upcoming months, Wagenborg will perform another 35 voyages with monopiles from Germany and Denmark to the temporary storage in Eemshaven using a specially equipped pontoon (100m × 33m × 7.6m). The ‘WAGENBORG BARGE 8’ is equipped with hydraulically operated saddles and an additional internal ballast system to carry three monopiles per voyage. Wagenborg’s engineers carried out detailed calculations for this method of transport, taking stability, sea conditions and a weight of 1,500t per monopile into account.
Director Marc Mazereeuw is pleased that Jan De Nul Group has given Wagenborg Towage the confidence to carry out this great project: “We are again proud to be at the service of Jan De Nul in the construction of two offshore wind farms from Eemshaven.”
Jan De Nul’s brand-new Heavy Lift Vessel, Les Alizé, is currently in the Port of Gdansk mobilizing for the transport and installation of 107 monopile foundations in the summer.
Thanks to her dimensions and impressive lifting and loading capacities, Les Alizés will be able to load out, transport and install multiple units of the largest and heaviest wind turbine foundations. In addition, as a crane vessel that floats, she will be able to install heavier and larger foundations into deeper waters and in more challenging seabed conditions. She will mainly be used for the construction of offshore wind farms, but with her impressive crane she is also extremely suitable for decommissioning offshore oil and gas platforms.
Les Alizés is fitted with a highly advanced exhaust filtering system by means of a Selective Catalytic Reduction system and a Diesel Particulate Filter, making it the very first seagoing installation vessel of its kind to be an Ultra-Low Emission vessel (ULEv), moreover Stage V-certified.