The Etneo vertical axis wind turbine is also called hybrid because on the same axis mounts: the Savonius rotor oriented on the 4 cardinal points to start the rotation with the winds, the Darrieus rotor with three aerodynamic profile curved blades to increase efficiency and production capacity with moderate and strong winds. The 61400-2 certifications made for the 300W and 3kW turbines, certifications usually made only for big wind turbines, give confirmation of the real quality of the products.