there is a current experiment where road are paved with the so-called "SolarRoad"

Code:
http://www.engadget.com/2015/05/11/solar-bike-path-results/
Code:
http://us7.campaign-archive2.com/?u=fc23dec47019a23d70031492e&id=39c5c2acf8
i hope this gets adopted in the philippines once nga ma stabilize ni. as a tropical country this means of generating energy is very effecient and sustainable.
would be awesome to pave my driveway or maybe my outside-facing wall with these type of solar cells. it would mean our house is like a self generating power generator. sounds awesome.