Siemens Gamesa has achieved a milestone in the development of the 30 MW Hywind floating offshore wind farm, with five turbines now installed on floating foundations.
The 6 MW turbines will soon be towed from the port of Stord on Norway’s west coast to the wind farm 25 km off the coast of Peterhead, Scotland, where they will be installed in water depths between 90 and 120 metres. The Hywind project, under development by Statoil and Masdar, is planned to be commissioned in the fourth quarter of this year.
The floating foundations are ballast-stabilized and will be anchored to the seabed with mooring lines. Siemens Gamesa said the design had taken into account learnings from Statoil’s 2009 Hywind demo, which featured a 2.3 MW floating turbine from Siemens Wind Power.
The company said the demo project had yielded a lot of knowledge about the requirements for control parameters on a moving wind turbine under offshore conditions. For the floating installation, the technicians developed new controller algorithms to regulate rotor pitch and yaw drive.
Michael Hannibal, offshore head at Siemens Gamesa, said the firm “views the floating wind farm market area the same way as we did with offshore wind farms in the early beginning: it is a very interesting area that is initially a niche market.
“This niche may, however, develop over time into a large market. It is a niche in which we would like to build a strong position for this reason.”