Mass and Energy Balances of the Switchgrass-Ethanol Cycle. July 9, 2008.
By Dr. Tad Patzek. Scientific, peer reviewed study taking a critical look at the net energy returns and some environmental impacts. Clear, concise and only 10 pages.
Ethanol Production Using Corn, Switchgrass, and Wood. March 2005.
By Pimentel and Patzek. Scientific, detailed, and comprehensive look into ethanol from switchgrass. The report is roughly 30 pages.