Project Sunroof is a very cool project from Google that helps you calculate how much energy costs you can save using solar. In the website (www.google.com/get/sunroof) you just need to enter your street address or even find in on maps. Then Google computes how much sunlight hits your roof in a year, combines that information with other databases and creates a personalized roof analysis.
How does Project Sunroof works?
In three simple steps what google does is:
Step 1 – Search for your home and creates a personalized solar plan
Google's database of imagery and maps
3D modeling of your roof
Check all possible sun positions over the course of a year
Check historical cloud and temperature patterns that might affect solar energy production
Some assumptions of the model are:
Only arrays on buildings are considered, not other spaces such as parking lots or fields.
Every included roof has a total potential installation size of at least 2kW.
Only areas of the roof with enough space to install 4 adjacent solar panels are included.
Obstacles like chimneys are taken into account.
Knowledge about building shapes is calculated using a machine learning algorithm using data from Google maps and overhead imagery.
Check out an example of the estimated rooftop solar potential of Oklahoma City HERE!
Step 2 – It helps you personalize your solar analysis integrating your electric bill to fine-tune your savings estimate and the recommended number of solar panels for your home.
Step 3 – Compares finance options (loan vs lease vs purchase)
We all know that solar panels can help homeowners reduce their energy costs and, nowadays, with pay-backs below 10 years. One thing I discovered exploring Project Sunroof is that there are a lot of home buyers willing to pay a premium for a home with a solar installation.
But before installing solar panels usually people raise several questions like: What makes a roof good for solar? What if my roof is really old? What if I have to move after a few years? What if I own a multifamily home? You will find these answers and much more on the website.
Want to know more about solar energy and solar products? Visit our website HERE.