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Re: Turn coal into oil
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Originally Posted by UncleAl
It requires 131,000 British thermal units (Btus) to produce one gallon of ethanol, which yields 77,000 Btus of fuel energy. That's a 70% net energy loss.
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UA- I have heard this stat before, and I am wondering if you could identify where the energy is (mainly) consumed in production. Is it distillation?
....Or does it include the usually-wasted solar energy input to photosynthesis?
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Few problems are so complex that they cannot be substantially clarified by one more cup of coffee  (or a nice cabernet if it is after 5:00)
Moderator in absentia. Return anticipated. Timing somewhat vague.
Last edited by Biochemist; 03-20-2005 at 08:26 AM..
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