Want solar panels but don't know where to start? Google has created a nifty little tool for determining if your home is a good bet for solar power. It combines Google Maps information about your home, local weather history, and estimates from nearby solar providers.
Project Sunroof was thought up by Google engineer Carl Elkin, who worked on it in his 20% time (Google allows employees to pursue side projects in addition to their regular job). The pilot project is starting small, and only works in three cities for now: Boston, San Francisco, and Fresno ("where one of the engineer's mom is from").
Google's Project Sunroof calculates solar cost - Aug. 17, 2015