April 14, 2016 •  ALBUQUERQUE, N.M. — Most U.S. rooftops in good repair can take the weight of solar photovoltaic (PV) systems. That’s the conclusion of a three-year study by a research team led by Sandia National Laboratories. “There is a misperception in the building industry that existing residential rooftops lack the strength to...                
            
                    Categories: Energy / Environment / Water, Renewable energy                
                
            