U.S. ethanol plants are continuously reducing their energy needs and carbon footprints, according to a study by researchers from the University of Illinois at Chicago and Dominion Energy Services. "On average, 2012 dry grind plants produce ethanol at higher yields with lower energy inputs than 2008 corn ethanol" plants, the researchers said in the report. Consumption of thermal energy at a typical dry mill ethanol facility has dropped 9% since 2008, the study found.

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