Environment-friendly vehicle?

Recently, I came across a news story by AFP headlined VW to spend 34b euros in drive to become e-car leader. Several European nations have set a deadline to phase out diesel/petrol cars, and only allow e-vehicles. The biggest challenge to this is the charging point. To make e-cars popular, manufacturing companies need to think of establishing charging points.

Another problem is that the electricity used to charge vehicles is generated in coal-powered energy sources. I think there should be efforts to find a way to use environment-friendly power sources. Otherwise, the entire point of environment-friendly vehicles will be useless. Solar cars are another option whose feasibility deserves to be explored.