I found this article on the Scientific American website. It's about two years old, but I think it brought up an interesting point. Conventional wisdom is that densely-populated urban areas were better for the environment, but this article says suburbs could become the next bonanza for solar power, because of the greater area of roof space. What are your guys' thoughts?
http://www.scientificamerican.com/article/is-solar-suburbia-the-way-to-power-modern-cities/
http://www.scientificamerican.com/article/is-solar-suburbia-the-way-to-power-modern-cities/