Did I mention I'm excited about the solar roadways project? This sounds like a good idea. They're building solar panels into roads, so roads will generate power.
They're also working with various bells and whistles, like LED lights built into the panels. Even if the solar panels don't work out, it'd be nice to have lights built into the roads. Say you want to change from a three-lane highway to a two-lane highway? No need to repaint the road; just reprogram the lights. Theoretically, you could also turn the lights on at maximum power to melt snow...
The solar roadways project is currently on Phase 2. As you might expect, they are starting out with parking lots and sidewalks; solar freeways and highways are a long way off. The group has been working with the Federal Highway Administration, which regulates "things cars drive on", and the FHA has given full support to the project so far!
I'm dreaming of the magical future where all gas stations are replaced by electric car stations. Also, I'd like a future where electricity is free because we generate far more power than we need. The current plan of "use far more power than we can generate" doesn't seem to be working very well.