Siemens to supply offshore wind turbines to floating wind farm

The new Hywind Scotland project contains five SWT-6.0-154 wind turbines with a hub height of 103m each.

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For the 30 megawatt (MW) Hywind Scotland Project, Siemens (Berlin and Munich) will supply five of its SWT-6.0-154 direct drive offshore wind turbines. The turbines will be installed on floating foundations operating in water depths between 90 and 120 meters. The world's largest floating wind project is located in Scottish waters 25 kilometers off the coast of Peterhead in Aberdeenshire. For the new Hywind Scotland Project, assembly in West Coast Norway is scheduled for first half 2017. In 2009, Statoil and Siemens successfully installed a 2.3 MW Siemens turbine at the first floating full-scale wind project worldwide, Hywind Demo.

The floating foundations are ballast-stabilized and fastened to the seabed with mooring lines. With their lightweight nacelles, Siemens large direct drive wind turbines are particularly suited for the floating foundations designed as slender cylinder structures. For the floating installation, Siemens’ technicians developed new controller settings for rotor pitch and yaw drive regulation.

“We are proud to once again be on board the floating wind project with Statoil, and to apply the experience we gained with the first full scale floating turbine,” said Morten Rasmussen, head of technology at Siemens Wind Power and Renewables Division. “Hywind Scotland is another pioneering project and has the potential to become a trailblazer for future floating wind projects.”