A system for capturing energy may comprise a vehicle having a body with an interior and an exterior, and at least one aperture being formed in the exterior through which air enters. An energy capture apparatus comprises a primary guide duct positioned in the interior with an entrance adjacent to the at least one aperture and an exit, a turbine assembly in communication with the primary guide duct to receive air flowing along the air path and having an output. The apparatus may also include a generator configured to receive rotational motion from the turbine assembly and generate electrical power, and a secondary guide duct in communication with the output of the turbine assembly. The system may comprise an air utilizing component with an exit of the secondary guide duct being positioned adjacent to the component.