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Butendiek Offshore Wind Farm

80 wind turbines with a total capacity of 288 MW

Design, supply and installation of 80 wind turbine foundations

  • North Sea, Germany
  • 2014 - 2014
  • Ballast Nedam Renewables

The Butendiek offshore wind farm is located in the German Bight, 32 km West of the German Island Sylt. The water depth at the Butendiek offshore wind farm is between 17 and 22 metres. The wind farm consists of 80 wind turbines, each with a capacity of 3.6 MW, 288 MW in total.

  • 80 wind turbine foundations
  • 288 MW in total
  • 32 kilometres distance to shore
The foundation comprises a Filter layer and armour monopile and transition piece. The design was done inhouse by Ballast Nedam Engineering. The transition pieces and the monopiles were fabricated in Rostock and Lubmin from where they were transported to the base harbour in Esbjerg. The design and fabrication activities took place in 2013.

Monopiles

In 2014 the offshore installation started with the filter layer. On the 1st of april 2014 the first monopile was installed, the 80st and last monopile was installed on the 22nd of July 2014. During the installation of the monopiles a noise mittigation screen was used to prevent noise impact during pile driving. The installation of the Transition Pieces started the 2nd of June 2014, the 80st and last is installed on 18th of September 2014. At the beginning of 2015 the foundation installation was finished with the completion of the armour protection.

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Sander Lefevre

Managing Director Ballast Nedam Infra Projects a.i.

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