Because so little energy is required to cultivate crops such as switchgrass for cellulosic ethanol production, and because electricity can be co-produced using the residues of such cellulosic fuel production, reductions in greenhouse gas emissions for celluslosic ethanol when compared to gasoline are greater than 100 per cent. (calcars.org)
Compared with rows of maize, tufts of switchgrass grown for biofuel have hidden perks, a new study finds. (sciencenews.org)
After crunching the numbers, Vogel and his colleagues found that ethanol produced from switchgrass yields 540 % of the energy used to grow, harvest, and process it into ethanol. (sciencemag.org)