The payback is within 5 years, and there is no more tax incentive I installed them for two company's I worked for! Only cool thing is if you get the right package it spins your house meter backwards and pseg pays you! But a basic rooftop setup starts at 50+ grand

I watched the super therm video, very interesting. I have a ridge vent and I put a thermometer in my attic and it is pretty consistently between 102 and 108 on sunny days in the 80's and 90's. So it seems to be doing about the same as Super Therm. My wife would kill me if I painted the roof white. The plugs for the Obama administration made me want to vomit. :-)

The payback is within 5 years, and there is no more tax incentive I installed them for two company's I worked for!

 

Pay back in 5 years or my money back? You put the money in an Escrow and I'll sign that deal.

 

My current payback would be when they are half dead.