The CREE Centre acknowledges financial support from The Research Council of Norway, University of Oslo and user partners. ISBN: 978‐82‐7988‐175‐9 ISSN: 1892‐9680 http://www.cree.uio.no CREE Working Paper 7/2014 Promoting second generation bioethanol: Does the first generation pave the road? Håkan Eggert and Mads Greaker