Abstract: A pair of axles is rotatable about parallel axes. Each axle has a plurality of radially extending blades. A space between the axles defines a central passageway. A housing encompasses the blades. The housing has a concave front surface with a front opening and a convex rear surface with a rear opening. The central passageway extends between the front and rear openings. The housing has upper and lower surfaces. The upper and lower surfaces have apertures for rotatably receiving the axles. The front surface has lateral openings. Each opening forms a supplemental passageway. A support for each axle is provided. A lower extent of each axle extends beneath the lower surface of the housing. A generator is coupled to each axle. In this manner wind is moved through the housing. Also in this manner the axles rotate the generators. Further in this manner electrical energy is created.