Updated: 2/1/2006; 8:29:39 AM.

Future energy
Renewables, fuel cells, hydrogen, and efficiency


daily link  Saturday, January 28, 2006


Ethanol, oil and GHG:  Good summary of the issues, based on a UC Berkeley paper.  Bottom lines:  All forms of US-produced ethanol displace a lot of oil (typically 95% less petroleum used).  Greenhouse gases (GHG) are cut slightly (13%), due to the use of natural gas and even coal to heat the production of the ethanol from corn.  How the corn is grown makes a big difference (e.g., low tillage).   Future cellosic ethanol is projected to cut GHG dramatically (80%).  No data is provided for Brazilian cane production, which uses corn stalk bagasse for heat instead of natural gas or coal, which I have read elsewhere results in high GHG displacement.
  12:25:15 AM  permalink  

 
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Copyright 2006 © Ken Novak.
Last update: 2/1/2006; 8:29:39 AM.