How large is a wind turbine?
Blade shape and size and mast sizes vary widely with the site requirements and turbine model used. Generally, the larger the turbine kW rating the taller the larger the wind-swept area of the blades and taller the mast is (to optimise the incoming energy compared to the cost of taller masts). The height of the mast or the size of the blades is often one of the restrictions in choosing a system, and our system designers will attempt to find a suitable system to comply with these requirements. Conversely, we sometimes specify taller masts than usual in order to maximise the output from the site. With our ‘standard’ range of Proven wind turbines, the blade diameter of a 2.5 kW turbine is 3.5 m; the blade diameter of a 6 kW turbine is 5.5 m; the blade diameter of a 15 kW turbine is 9 m. The mast heights of our standard systems are between 6.5 – 15 m, although a 25m mast is sometimes used.
