However, before it is possible to transport the monopiles in the water – and each one weighs approx. 600 tonnes – it is necessary to seal them and make them airtight. Cuxport is working with the specialists from Ballast Nedam Offshore to achieve this; they seal the monopiles with covers while the units are still on dry land.
The Cuxport crawler crane then lifts the foundation piles into the water from the pier. The berth used for this work is right next to berth 8, where the jack-up vessel “MPI Discovery” can moor. “Then we’re able to serve both berths with just one crawler crane at the ninety degree corner where vessels can dock on two sides,” says Hans-Peter Zint, Managing Director of Cuxport, explaining the benefits. Once the steel pipes are in the water, tugs haul them to the offshore site.
One of the world’s most powerful floating cranes, the “Svanen”, is operating at the “Amrumbank West” wind park. The special vessel raises the monopiles and then installs them. “Now that we’re relying on two technologies to complete the project, we’ve become even more flexible and can more easily make up for any disruptions in the construction work or delays,” says Peter Voigt, Logistics Package Manager for the E.ON Amrumbank project. Cuxport is playing a key role in providing the logistics support for the construction of “Amrumbank West”. The port logistics company is currently storing approx. 50 monopiles and 50 transition pieces at its site. The completion of the offshore wind park situated north-west of Helgoland will involve 80 sets overall. The offshore construction vessel “MPI Discovery” has already assembled 30 sets at the wind park.
“Thanks to our outstanding infrastructure and the highly flexible company organisation, we can respond quickly, accept new challenges even during the course of the project and adopt new approaches. The lines of communication with our customer remain open at all times and we’re making a valuable contribution towards ensuring that the project is completed efficiently and successfully,” says Hans-Peter Zint, summarising developments.
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