Quote:
Originally Posted by Miller88
Doesn't it use more than a gallon of fossil fuel to produce a gallon of ethanol.
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Although I read that same line being repeated over and over ... I don't see it lining up.
Sure there are different ways to produce ethanol... and they all are not the same.
Just a quick look at references on
wikipedia lists:
US ---Corn Based = 30% more Ethanol Energy out than the sum of fossil fuel energy used to produce it.
Brazil --- SugarCane Based = 700% more ethanol energy out than the sum of fossil fuel energy used to produce it.
Various types of cellulosic ethonal production range from 100% more output to 3,500% more output , than the sum of fossil fuel used to produce it.