DP2 Heavy-Lift Crane Vessel Deployed to Handle the 450-Ton Units
By Simon West
Jumbo Offshore, a division of Jumbo Maritime, has completed the transport and installation of 80 transition pieces (TPs) at the Yunlin offshore windfarm in Taiwan.
The Dutch offshore specialist had selected its DP2 heavy-lift crane vessel Jumbo Javelin to transport up to four 450-ton TPs – steel tubular structures used to connect a wind turbine generator to its monopile – at a time from the Taiwanese port of Kaohsiung to the project site located some eight to 17 kilometers off Taiwan’s west coast.
The final unit was installed at the end of August.
As part of “extensive” preparations, the vessel was outfitted in a “project-specific set-up”, which included the Jumbo Fly-Jib modular crane boom extension. “This feature can be mounted on a Jumbo J-Class vessel to increase the lifting height. With this, the vessel was provided with the capability to lift the 27-meter-high TPs,” the contractor said.
It added: “Water depths at the Yunlin offshore windfarm vary between 7 and 35 meters. The shallower water locations are not suitable for installation in DP mode. Therefore, Jumbo Offshore switched between installation on DP and installation on anchors, making full use of the vessel’s versatility.”
The Yunlin windfarm, Taiwan’s second largest, is being developed by Yunneng Wind Power and consists of 80 wind turbine generators that once online will provide up to 640 MW of energy, enough to power some 600,000 homes.
Jumbo Offshore has carried out a series of transport and installation projects at Yunlin.
In 2021, the company announced it had completed the delivery of 40 monopiles, 120 monopile sections and 40 TPs from yards in the Netherlands and Germany to Yunlin, a project it described at the time as a "significant milestone in the largest job in its history."
The original contract was secured with Yunneng Wind Power in 2019.
The Jumbo-Sal Heavy Lift-Intermarine (JSI) Alliance is an exhibitor at Breakbulk Europe.