while i'm not suggesting this powered the vehicle, it was parked at wally world in yuma off and on several times and each time the windmill was going pretty good. assuming electrical source looked to be pretty sophisticated. folded down for travel just like a bat wing. i've also seen solar panels here; i wonder about the weight involved in solar panels. also wonder how much power this windmill actually generated (larger than it looks here). in the meantime, i'm glad we still have a fuel option and for our size vehicle, gasoline works.
wind power