ETHANOL: Iowa cellulosic plant on track for 2014 opening Amanda Peterka, E&E reporter Published: Wednesday, June 12, 2013 One of the nation's first next-generation biofuel plants is on track to begin producing fuel early next year. 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.