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2008 Energy Balance for the Corn-Ethanol Industry
Economics Technical Reports and White Papers
  • H. Shapouri, United States Department of Agriculture
  • Paul W. Gallagher, Iowa State University
  • Ward Nefstead, University of Minnesota
  • Rosalie Schwartz, University of Nebraska - Lincoln
  • Stacey Noe, Iowa State University
  • Roger Conway, United States Department of Agriculture
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The Agricultural Resource Management Survey of corn growers for the year 2005 and the 2008 survey of dry mill ethanol plants are used to estimate the net energy balance of corn ethanol. This report measures all conventional fossil fuel energy used in the production of 1 gallon of corn ethanol. The ratio is about 2.3 BTU of ethanol for 1 BTU of energy inputs, when a portion of total energy input is allocated to byproduct and fossil fuel is used for processing energy. The ratio is somewhat higher for some firms that are partially substituting biomass energy in processing energy.
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
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H. Shapouri, Paul W. Gallagher, Ward Nefstead, Rosalie Schwartz, et al.. "2008 Energy Balance for the Corn-Ethanol Industry" (2010)
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