Abstract: This turbine ventilator is a combination device for ventilating a building structure, while it simultaneously generates useful current, and it consists primarily of a rooftop mounted housing, for confining rising warm air, and directing it into a pair of base members, which support rotating spherical members driven by the rising warm air. It further includes a shaft on each spherical member, which is coupled to secondary shafts with pulleys and belts, for driving a generator.