FAIRFIELD â€” A new report by Porch lists Fairfield as 10th, and Vacaville at 14th, for small cities investing the most in solar energy.
Small cities are described as a population from 100,000 to 149,999.
Researchers at Porch ranked cities according to the share of viable buildings with rooftop solar. For a roof to be solar-viable, it must be able to accommodate at least four adjacent solar panels, with a total potential installation size of at least 2 kilowatts.
The share of viable buildings in California with rooftop solar is 3.9%. The national average is 1.2%, the report said.
The report notes that solar made up 40% of new electricity generating capacity added in the U.S. in the first quarter of 2020.
A federal solar tax credit allows taxpayers to deduct 26% of the cost of installing a solar energy system to help offset the installation cost. Many states offer solar rebates for home solar energy systems. California even mandates that new construction homes have a solar PV system.
To determine the states investing the most in rooftop solar energy, researchers at Porch, a marketplace for home services, analyzed the latest data on small-scale rooftop solar installations from Googleâ€™s Project Sunroof. The researchers ranked states according to the share of viable buildings with rooftop solar.
Researchers also looked at the total number of buildings with rooftop solar, the share of all buildings that are solar-viable, the total number of buildings that are solar-viable, and the median annual solar potential per viable roof. For context, the average annual electricity consumption for an American home is 10,972 kilowatt-hours per year.
The report can be found at https://porch.com/advice/cities-investing-most-solar-energy.