Solar power is a good idea but it will have to develope much further than it is now. The solar cells need to be made smaller and be able to produce more power with less light than they do now. Batteries need to be made much smaller and designed to hold more power than they do now. 60 to 100 miles on a charge for a car is way too limiting to be feasible for standard transportation and until solar cells can completely recharge the vehicle even while it is being driven they can't have wide spread use. I wouldn't want a car that might run out of charge miles from a charging station. If I run out of gas I can take a gas can to the nearest station and get back on the road. If an electric car runs out how long of an extension cord would you have to string out to get back on the road again.