One of these has turned into a project that solar panel companies could really use in their marketing efforts.
It's called Project Sunroof and it shows you how much solar power your roof could generate based on your home's orientation, shade from buildings and trees and other geography. Conveniently, the tool can also hook you up with local solar installers.
Currently it only works in Boston, Fresno and the Bay Area, but they say it will be expanding to the rest of the country.
What a great synergistic marketing tool. I'm wondering if there might be a play for Owens Corning.
Here's a short video that describes the program: https://youtu.be/_BXf_h8tEes