With gas prices crossing $4 a gallon, the EPA says cheaper, more ethanol-rich fuel will ease the pain. The math doesn't really add up—but the risks sure do.
from what I understand there are only a few ways to make ethanol that is decently net positive. This was why it was huge in brazil because it works well with sugarcane but that is because the fiber is burnt to provide the energy for the distinllation and such. using corn or sugarbeets is anemic and you use the waste product as animal feed to up its anemic returns. I remember swtich grass being a thing but looking into it it seems like they have not really solved the problems of breakdown.
from what I understand there are only a few ways to make ethanol that is decently net positive. This was why it was huge in brazil because it works well with sugarcane but that is because the fiber is burnt to provide the energy for the distinllation and such. using corn or sugarbeets is anemic and you use the waste product as animal feed to up its anemic returns. I remember swtich grass being a thing but looking into it it seems like they have not really solved the problems of breakdown.