This presents a Utility Model related to an improvement introduced in a piece of equipment conceived to capture wind power generated by the displacement of trains, subways, vehicles in general—overall trucks—along railroads, roads, etc., and to convert it in electrical power, thus using such considerable energetic potential. Considering that the assembly of one or a plurality of wind rotors (P) and respective electricity generators (G) are assembled on semi-tows (K) of the type engaged and handled by a truck (mechanical horse), considering that the trailers (K) provided with means for storing the electrical power generated, such as batteries (B), or other means for electricity transmission and storage. Thus, the aerogenerators (P) may be displaced to the points with the biggest flow of passing vehicles, and may also be positioned on the direction where the natural (predominant) winds are favorable to the best use of the wind potential.