The aggregate expenditure on building energy in the U.S. in 2008 was $448 billion. At 3.1% of total GDP, this figure is slightly more than the GDP of Massachusetts or the entire federal government’s expenditure on Medicare.
A: U.S. Energy Information Administration. 2010. Annual Energy Review 2009. Washington DC: U.S. Energy Information Administration, August 19. link
B, C: Bureau of Economic Analysis. “National Economic Accounts.” link
D, E: Executive Office of the President of the United States. 2011. “Budget of the United States Government: Historical Tables Fiscal Year 2011.” " link