Crowd-Funded U.S. Rooftop Solar May Top $5 Billion in Five Years

Crowd-Funded U.S. Rooftop Solar May Top $5 Billion in Five Years

Tim Boyle/Bloomberg

Workers install Solar Service Inc. photovoltaic (PV) solar electric panels on the roof of a home in Park Ridge, Illinois, on Sept. 10, 2013. U.S. homeowners installed 792 megawatts of solar power in 2013.