Vertical Axis Wind Power Generation System
It consists of machinery part to convert the wind energy to mechanical energy, electric part to convert the converted energy to electrical energy, and control part to control the system and is frequently used by the power wind generator that has medium or smaller capacity. As the blades rotate focused on the vertical axis, yawing effect is not generated due to no influence from the direction of the wind.

Horizontal Axis Wind Power Generation System
It consists of rotor to convert the wind energy to rotating power, nacelle to convert the rotating power to electrical energy, and a tower to support the wind power generator and is available in various capacities from small capacity to large capacity.
As the system should face the direction of the wind due to its specific features, the body of the wind power generator should be artificially rotated (yawed) or the surface of the blades should lie at right angles to the wind using the tail blade.