Offshore staff
AALST, Belgium — Jan De Nul Group has started work on a transport and installation (T&I) contract for Ørsted’s 242-MW Gode Wind 3 and 900-MW Borkum Riffgrund 3 wind farms in the German North Sea.
An initial three monopile foundations have left Steelwind’s yard in Nordenham, Germany, for the port of Eemshaven, The Netherlands. For the first time, Ørsted will use monopiles with secondary steel components instead of a transition piece for the connecting turbine and foundation.
Jan De Nul’s T&I scope covers 106 wind turbine monopile foundations and one offshore substation foundation, including associated topside.
Subcontractor Wagenborg has sent its Wagenborg Barge 8 to transport the foundations to the marshalling harbour at Eemshaven.
This summer Jan De Nul’s new heavy lift vessel Les Alizés, delivered from the CMHI Shipyrad in China in January, will arrive on site and install the first monopile foundation offshore. Jan De Nul commissioned the vessel in response to the move to larger wind turbines for offshore wind.
Les Alizés is designed to load out, transport and install multiple units of the largest and heaviest wind turbine foundations, the company said. And as a crane vessel that floats, it will be capable of installations in deeper waters and more challenging seabed conditions.
The crane capabilities are also suited to decommissioning of offshore oil and gas platforms.
Les Alizés is equipped with a selective catalytic reduction system and a diesel particulate filter, making it the very first seagoing installation vessel of its type to be an Ultra-Low Emission vessel (ULEv) and Stage V-certified, Jan De Nul claimed.
Both the new wind farms will employ 11-MW Siemens Gamesa turbines. They are due to start operations in 2024 and 2025.
03.17.2023
