To determine how much residential building energy can be saved at what cost, we created an efficiency supply curve.
The supply curve includes both electric and natural gas efficiency measures. For each end-use, the supply curve includes all the measures available and considered for that end-use. The costs in the supply curve for each end-use are an average of the costs for the measures weighted by their savings.
Our analysis is based on the National Academy of Sciences’ 2009 study America’s Energy Future: Technology and Transformation.
U.S. Energy Information Administration. 2010. Annual Energy Outlook 2010. Washington DC: U.S. Energy Information Administration, May 11.
National Academy of Sciences. 2010. Real Prospects for Energy Efficiency in the United States. Washington DC: The National Academies Press.