. . "Overall, the $200 million plant will cost $6.66 per installed gallon, well below cost estimates that have been used by the USDA and other organizations in estimating the cost of expanding cellulosic biofuels capacity. ???Nearly a decade ago, DuPont set out to develop innovative technology that would result in low capital and low-cost cellulosic ethanol production,??? said James C. Collins, preside" . .