Originally Posted by VocalNeal
For it to be truly successful in terms of reducing reliance on fossil fuels then the cost of installation should be the same as traditional roofing costs. If the energy is free from the sun then it should be free to the user.
I see your reasoning but I disagree. It's a person's bottom line that matters and is the motivating factor to encourage a system that reduces fossil fuel usage. If at the end of 30 years the home-owner has saved $xxxx, then that is great for the home-owner. The fact that it reduces the reliance on fossil fuels is a wonderful bonus for the planet.