Abstract: An improved wind powered generator includes a streamlined housing rotatably connected with a fixed base and a pair of helical rotors rotatably connected with the housing for driving a pair of electric generators when the rotors are rotated by the wind. The housing includes forward and rear nacelles which define vertical side openings in the housing in which the rotors are arranged, with the helical vanes thereof partially protruding from the housing. The nacelles serve to direct the wind stream against the rotor vanes with minimal disturbance, whereby the helical rotors capture the maximum amount of kinetic energy from the wind for conversion to electricity.