Project Sunroof - Shedding Light on Solar Potential

With the price of solar dropping, more homeowners have questions about the viability of rooftop solar on their homes. Project Sunroof is an essential first resource for those entertaining the idea of rooftop solar. 

Project Sunroof is a Google venture dedicated to providing property owners information on the viability of residential solar. By using imagery from Google Maps, Google Earth, 3D modeling, and data comparison, Project Sunroof can estimate solar production, potential shading issues, and even rebate and tax credit savings that may be available to a homeowner interested in rooftop solar. 60 million buildings have been analyzed thus far and it's helping potential solar owners determine if solar "make sense" on their roof.

The collated data is also producing helpful reports on solar viability on a larger, nationwide scale. With the data recorded from the analyzed rooftops, Project Sunroof has determined that:

  • 79% of all rooftops analyzed are viable for solar
  • 90% of homes in Hawaii, Arizona, Nevada, and New Mexico are viable
  • 60% of homes in states like Pennsylvania, Maine, and Minnesota are viable
  • Houston, TX has the most solar potential of any US city (with an estimated 18,940 gigawatt-hours of rooftop solar generation potential per year)

To put rooftop solar into perspective, if the above mentioned top ten cities reached their solar potential, they would produce enough energy to power 8 million homes across the US. 

Check out Project Sunroof here