If these guys actually solved any of the problems they say they have. Then every other solar panel is obsolete. Why aren't they just building solar panels for roofs?
The thing is the haven't. They have never answered any real questions. But, they have gotten many govern-cements and people to give them money.
One big problem with solar arrays is shadows. A shadow on part of a solar array can cause the whole solar array to stop outputting electricity (as the light part feeds back into the shadowed part). Modern arrays use diodes to limit this effect. But, each diode drops the voltage by 0.7 Volts. To many diodes, and you have no power. And so, how did they work this out to use on roads where there is lots of moving shadows?
Just one example. I can list 10.
Still a pretty cool concept though. The bike paths they built seem to doing a good job on smaller scale. I would like to see this invention come to life on a large scale.
The big issue I have with solar panels are that manufacturing them and harvesting the materials to make them is incredibly bad for the environment.
And its not cheap probably why gov's aren't doing it.