Source: Desmoines Register
quote: And secondly, ethanol is grain alcohol, so the only way to make it is to repeatedly boil and cool the liquid a dozen times or more, extracting the alcohol each time. How much energy do you think it takes to bring a trillion gallons of liquid to a boil, then cool it, a dozen times over? A LOT.
quote: Biodiesel also contains more energy per gallon than corn ethanol. Ethanol has about 96,000 btu's per gallon, while biodiesel has around 136,000 btus per gallon.
quote: Biodiesel is better in every measurable way than corn ethanol.