I've been excited about a new technology that I have been following for a couple of years. It's called Solar Roadways. http://www.solarroadways.com/intro.shtml
The idea is to replace our current highway system and other roads, parking lots and sidewalks with a textured glass covered solar panel. They are said to be strong enough to handle the rigors of large tucks and everyday traffic, will have circuit boards with LED lights to illuminate lines and information for night drivers. Heating elements to melt snow and ice and are skid resistant. They also will have side compartments under ground for cables and wiring as well as a storm water compartment. The BIG thing is it will generate power and replace our aging and dysfunctional power grid!
They have recently just built their first functional small scale parking lot but are trying to acquire funding to build the first manufacturing facility in Idaho so they can start taking and fulfilling orders to design, sell and build parking lots and roads all over America!
I'd like to see this take off so check it out and get involved!!!