Dumb question: Is sugar renewable? In all honesty; I have no idea -- but I should.
I really like this idea/machine. Only one issue I'd find with it; Even the flex-fuel vehicles have trouble running on pure-ethanol.
Especially in the winter, so what are you supposed to do? fill up an 1/8 of your tank with gas, and then pump this stuff in? Wait - you could do that........nevermind