Interestingly, there are few large-scale cellulosic biofuel facilities operating in the U.S. (EMTS, 2014) which perhaps best illustrates a well-known bottleneck for commercial development: the production of biofuels cannot yet compete with petroleum-based fuels on the basis of cost. One approach to mitigate this issue has been through the establishment of biorefineries that aim to convert renewable non-food feedstocks into two or more products. In many ways, biorefineries seek to mimic the oil refineries they intend to replace, but unlike conventional oil refineries, the goods produced by biorefineries (in addition to biofuel) will vary across the country as a result of region-specific feedstocks and/or needs.