BIOFUELS: Researchers put production plant on 18-wheeler in bid to lower costs Amanda Peterka, E&E reporter Published: Tuesday, January 21, 2014 Companies aspiring to produce next-generation biofuels struggle to get raw material to production plants. 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.