%0 Journal Article %K Energy conservation %K Residential buildings %K Direct current (DC) %K Photovoltaics (PV) %A Vagelis Vossos %A Karina Garbesi %A Hongxia Shen %B Energy and Buildings %D 2014 %P 223–231 %R 10.1016/j.enbuild.2013.09.009 %T Energy savings from direct-DC in U.S. residential buildings %U http://www.sciencedirect.com/science/article/pii/S0378778813005720 %V Volume 68, Part A %8 01/2014