I think there is no other way to do it but create an infrastructure targeting this goal. For example, magnets built in to the pavement could serve this purpose. The streets pavement must be resurfaced and cars must be equipped with the additional charging coils. This question should be thoroughly assessed - how much electricity could be generated such way, is there environmental impact from the magnets in the pavement, etc. All this is a big deal that has to be accepted on the government level first. If only we could find a way to achieve the goal by small steps; without involving such big forces and resources.