Current invention is related to a vertical axis wind energy transformation system with blades having cell structure in order to convert wind energy into mechanical energy.

The in

vention is about especially blades having cell structure that is in contact with wind power and can open and close according to the direction of the wind, a switch mechanism that allows these cell structures to open and close and a mechanism and method containing an apparatus for determining the direction to put this switch mechanism in an appropriate position according to the direction of the wind.