Abstract: A wind-capturing electrical generator device comprising a plurality of generators is driven by wind created by traffic passing in close proximity at high speeds. The device preferably uses horizontally or vertically mounted Savonius-type or helical-turbine-type rotors attached to electrical generators in order to capture the wind and produce electrical energy. A plurality of electrical generator devices may be mounted in a configuration such that they are in close proximity to vehicular passageways (e.g., highway overpasses, tunnels, or train rails). The wind created by the traffic is used to rotate the vanes and their attached generators in order to produce electrical energy.