A wind energy conversion apparatus comprising a supporting structure is presented. The apparatus further comprises shaft having a first and a second end, which is rotatably journalled in said supporting structure, as well as at least one rotor blade having a first end and a second end, which rotor blade is mounted on said shaft with both ends. The object of the presented wind energy conversion apparatus is to improve the known apparatus and to provide an apparatus which is capable of converting a larger amount of wind energy into other forms of energy. Accordingly wind energy conversion apparatus according to the invention is to that end characterized in that the rotor blade is provided with additional wind capturing means.
