Abstract: A wind energy conversion device comprised of an elongated generally cylindrical housing provided with oppositely pitched multi-bladed rotors at the fore and aft ends thereof which are directly coupled respectively to internal and external rotors of an electric generator. The device is pivotally mounted atop a mast in an off center relation to the fore and aft rotors, the pivot being positioned substantially closer to the front rotor. Electrical wiring conducts the energy produced by the generator to storage batteries which are connected to an inverter to produce an AC output. Appropriate ampere, DC and AC voltage gauges as well as a shut-off switch are included in the electrical system.