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Originally Posted by starving_student
Ethanol takes more energy to produce than it provides.
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Not according to the
US Department of Agriculture. They state there is a net energy balance for ethanol production of 1.67. That is, for every one unit of energy used to produce ethanol and its accompanying co-products, 1.67 units of energy results. However, the
US Department of Energy reports that petroleum refining actually has a negative energy balance. For every unit of energy expended in gasoline production, only 0.79 units of energy results in the form of gasoline.
Agriculture Dept PDF
Energy Dept PDF
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