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Strategies & Market Trends : Booms, Busts, and Recoveries

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To: Snowshoe who wrote (63986)	5/21/2005 8:30:05 PM
From: Snowshoe	Read Replies (1) of 74559

Switchgrass is much more efficient than grain as a feedstock for ethanol production... Oklahoma Researchers Test Switchgrass for Biofuel Production westbioenergy.org The problem is, most ethanol now in use is made from corn, and the total energy output/input ratio is about 1.2. This means the net energy gain from corn ethanol is about 21 percent. The energy output/input ratio for switchgrass is estimated at 4.4, representing a net energy gain of 334 percent. Switchgrass: a living solar battery for the praires eap.mcgill.ca Switchgrass not only requires lower energy inputs for growing, but also requires few energy inputs for ethanol conversion. The steam and electricity used to convert the switchgrass to ethanol can be derived from the combustion of the lignin (approximately 7% by composition) leftover after the ethanol extraction process. This represents a major difference compared to the grain ethanol industry, which requires large energy inputs from fossil or nuclear energy sources for its conversion.

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