SolarReviews’ calculations are trusted by the top non-profit solar organizations in America
North American Board of Certified Energy Practitioners (NABCEP) is a non-profit body trusted by the US government to set the training and accreditation standards for solar installers nationwide. Using a NABCEP-certified installer is a mandatory requirement for many solar incentive programs throughout the country.
California Solar and Storage Association (CALSSA), previously known as CALSEIA, is the premier solar and storage organization in California. CALSSA has over 500 members, making it the second-largest solar association in America. CALSSA advocates for the widespread adoption of solar in the state and promotes a code of ethics for Californian solar businesses.
Zillow is America’s largest real estate website, with data for over 110 million homes nationwide. It is also considered to be the leader in applying data modeling and analysis for real estate purposes. With the inclusion of Sun Number scores in Zillow’s building fact sheets, they have been able to provide millions of American homeowners with information about the solar potential of their homes.
Based in Boulder, Colorado, The American Solar Energy Society (ASES) is a non-profit organization focused on achieving 100% renewable energy. ASES is integral in connecting the solar and renewable energy communities and is committed to advancing the possibilities of sustainable living throughout the US.
Developed with funding from the Department of Energy, Sun Number is an advanced software company that uses LIDAR data to help determine the solar potential for individual homes. After conducting a detailed shading analysis of a roof’s surface, the results are then combined with SolarReviews/Solar-Estimate data to create an overall Sun Number™ score for each home in America. Sun Number scores are used by leading US-based real estate websites Zillow and Trulia.
Information SolarReviews Provides
Editorial Advisory Committee
SolarReviews has set up an editorial advisory committee as part of a commitment to our Quality Solar Initiative
Guides to residential solar panels in your state
All you need to know about solar in your state
One of the challenges of trying to provide consumers accurate information and tools to assess the solar potential of their homes is that almost everything that affects the economics of a solar panel installation varies by house, by utility area, by climate zone, and by state. As such we have prepared state-based solar guides. These guides include localized solar panels production data, local rebates, and incentives as well and ballpark cost, savings and payback estimators that take local weather and utility electric rates into account.