U.S. Department of Energy
The purpose of this report is to update the 2005 BTS and change its focus from a strategic assessment to a comprehensive resource assessment, thereby addressing issues raised since its publication. Once major criticism of the 2005 BTS was that the identified potential biomass was not restricted by price, and some of the potential feedstocks would likely be too expensive relative to other feedstocks under current and prospective technological change. This update provides estimates of prices and quantities of the resource potential (i.e. supply curves). This update also treats sustainability much more rigorously, and it focuses on currently unused resources and energy crops.