As part of the program, sponsored by the Northern Virginia Regional Commission and the Local Energy Alliance Program, Dumfries homeowners can use a new online mapping tool to estimate how much energy they could save by converting to solar power. The program bases savings predictions on factors such as the size of the roof and the amount of sunlight the building receives, said Robert W. Lazaro, director of regional energy planning for NVRC.
Washington Post, September 13, 2015