Residential buildings consume 39% of the total electricity in the
US, more than any other sector or building type [1]. Their electricity
consumption has increased by 27% from 1990 to 2008 anddprovided
the expected efficiency gains are realizeddis projected to
increase by 18% from 2009 to 2035. To meet this demand, 223 GW
of new generating capacity will be needed between 2010 and 2035,
75% of which is projected to be provided by fossil fuels [2]. Detailed
planning and execution of demand-side energy efficiency programs
is needed to reduce or stabilize residential electricity consumption,
and to prevent its harmful impact on the environment and on energy
security [3,4].