What Could Happen If Entire U.S. Adopted California’s New Solar Policy?

What would happen if builders installed solar panels on all new U.S. homes starting in 2020? According to a new report from Environment America Research & Policy Center, the country could more than triple its current solar capacity by 2045. Specifically, the resulting 203 GW of new residential solar PV capacity would represent 3.5 times the 58 GW of solar capacity currently installed in the entire U.S., the report estimates. Further, such a policy could also cut current annual carbon dioxide (CO2) emissions from electricity generation by more than 9% by 2045, the report says.