According to a study released by the U.S. Department of Energy's Lawrence Berkeley National Laboratory ---“Tracking the Sun IV: The Installed Cost of Photovoltaics in the U.S. from 1998-2010,” the installed cost of solar-powered p...  more
U.S. Cost of Installed PV Continues Its Decade-Long Downward Trajectory |
published: 2011-10-25 10:21 |