I'm not a materials expert by any means but keep in mind that our current roadways are essentially a bunch of tiny rocks held together with glue. Obviously, over time with pressure and heat you are going to have problems but the idea is that they hold together well-enough for a long enough time that we use them. Glass is very different and while it has some obvious disadvantages, longevity could be one of it's strengths in a different way than our current systems. Not to mention the fact that this system is clearly modular which means that replacing damaged panels seems to be a much easier proposition than what it takes (in manpower alone) to fix parts of our current roadways.
In my mind the biggest question is how to keep them clean over time so that the energy collection aspect is still worth it. However, honestly even if this were simply a proposal for a better roadway system that provides and easy system for moving our aging electrical and telephony systems underground, I would be for it.
smkettner wrote:I can't get past the maintenance part. I mean the trucks beat through concrete a foot+ thick. How is this stuff supposed to hold up 20 years? Of course if any road surface can hold up that long the solar energy part is just a bonus.
I could see lower impact areas such as sidewalks and some parking areas. The real benefit to low cost of panels is putting them everywhere vs restricted to the rooftops.