[nuke rocketeer]

It's nice until you get one of those famous roof destroying hail storms that seem to hit West, Central, and North Texas about twice a year.

Then it's bye-bye green rooftop PV system. I had one that badly damaged a supplemental hot water system I had on my home in Granbury in the 80's. The insurance did not cover it.

[Spktyr]

That’s why I said the Nanosolar product. It’s basically a flexible sheet of plastic that is a photovoltaic cell - hail would have little to no effect on it.