Different ways of calculating things give different results. The cited reference below (referencing an important scientific study) says ethanol costs $1.74 per gallon vs 95 cents per gallon for gasoline (and that ethanol takes more energy to make than you get out). I saw other references that gave cost of ethanol production anywhere from $1.05 per gallon to $2.23, and gasoline production as low as 63 cents per gallon. Such statements often derive from the wishes and agendas of those making the statements, on both sides.
Do you count the cost of farming or just the price of the corn? (Or the cost of drilling, or just the price of oil?) There are many ways of looking at this question.
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