As I travel to cities across the country, I observe that new apartments, condominiums and mixed-use residential and commercial developments are cropping up around nearly every corner. Growing at a similar clip, residential solar installations on single family homes have soared, averaging a 68 percent annual growth rate for the last 10 years, resulting in a historic number of Americans reaping economic, environmental and societal benefits. It’s time to address the policy gaps that are eclipsing the solar opportunity for this growing sector of Americans.