Selection of design feature of blade of wind turbine - optimization assumption

The energetistic potential of wind it is kinetic energy of moving air masses. A wind turbine transforms the kinetic energy of wind to the mechanical energy at a shaft and finally to electrical energy in a generator. The efficiency exchange of wind energy on electrical energy doesn't exceed 40-50% and in considerable degree depends on design, wind speed and location of wind turbine. Therefore before design of wind turbine should be make investigations of weather conditions on area, where wind turbine will be situate.