BIOFUELS: Cellulosic plant prepares to open its doors Amanda Peterka, E&E reporter Published: Wednesday, August 13, 2014 The first of the major Midwest cellulosic ethanol plants will open its doors in early September. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.