Wind rotors can be divided into three main groups:
- With horizontal axis
- With vertical axis
- Hybrid
Moreover, wind rotors can be classified into:
Resistance Systems: where the blade offers resistance to the wind which presses on it making it move and generating mechanical energy.
Lift Systems: where the blade, of aerodynamic form, exploits the lift principle, i.e. the air flow (wind) which allows it to move generating mechanical energy.
