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Using switchgrass and sorghum, the bio-energy company Ceres will on day make cellulosic ethanol at a plant that is currently being built near Soperton, Georgia. Ceres will work with Range Fuels to make the biofuel over the next few years (this is a test after all, not a commercial endeavor just yet). The biorefinery will mostly make cellulosic ethanol from wood residue, but these alternative sources (alternative to the alternative, in a sense) are in Ceres' sights because "they are highly effici