Transition pieces for ButendiekExperienced offshore companies have been contracted not only for the supply of the main components, but also for the design, transportation and installation. While the wind turbine generators will be supplied by Siemens, the foundation is designed and manufactured by Ballast Nedam, the internal wind farm cabling will be done by Visser & Smit Marine Contracting and the transformer substation will be built and installed by a joint venture with Cofely Fabricom GDF Suez.