Social and Behavioral Sciences Commons^™

Net Energy Of Cellulosic Ethanol From Switchgrass, Marty R. Schmer, Kenneth P. Vogel, Robert B. Mitchell, Richard K. Perrin

Department of Agricultural Economics: Faculty Publications

Perennial herbaceous plants such as switchgrass (Panicum virgatum L.) are being evaluated as cellulosic bioenergy crops. Two major concerns have been the net energy efficiency and economic feasibility of switchgrass and similar crops. All previous energy analyses have been based on data from research plots (<5m²) and estimated inputs. We managed switchgrass as a biomass energy crop in field trials of 3–9 ha (1 ha=10,000m²) on marginal cropland on 10 farms across a wide precipitation and temperature gradient in the midcontinental U.S. to determine net energy and economic costs based on known farm inputs …