Roof tile prices?!? You're not worried about a larger system here. your just using solar cell in place of roof tiles.
You can't actually use them -as- roof tiles.
There's a lot more involved than just stacking them up like ordinary roof tiles and putting a nail through to keep them in place. You need to provide wiring access, free ventilation under the panels to keep them cool, weatherproofing and service access.
Although it would be neat if someone made a roof tile that had a solar panel built into it.
Those are shingles, not tiles. A shingle roof doesn't last as long as a tile roof, and you can't use them as actual roof shingles - rather you install them on top of a mat you lay on a shingled roof.
And again, it's not very optimal because the roof surface gets really hot in the sun.
dschlink
Feb 12, 2013