10 good reasons for choosing Vertical Axis Wind Turbines VAWT rather than Horizontal Axis Wind Turbines (HAWT)

1. Global simplicity of the machine and thus, better reliability.
2. Rotor design more simple and more reliable (the blades give a better output.
3. Simplified mechanical system (no orientation system).
4. The wind direction has no effect on the aerodynamic output.
5. Easy and low cost maintenance.
6. Lower cost per installed kW.
7. Manufacturing process easily adjustable for an industrial production, especially the blades which are two-D instead of three (non twisted, with constant chord).
8. The total height of a VAWT is lower than for a HAWT since tip speed ratio has no influence on the rotor.
9. The peripheral speeds of the blades on VAWT are lower and generate therefore less noise than the blades on HAWT.
10. The VAWT can be integrated in an urban environment : they can be installed on existing structures or on tubular masts (towers) for a better visual impact.