A new report from the University of Tennessee Office of Bioenergy Programs and the U.S. Endowment for Forestry and Communities reviews the current state of research and development of technologies for utilizing wood for the production of energy. "Wood to Energy: A State of the Science and Technology" (PDF) characterizes industry process designs, stage of development or commercialization, and suitability for the marketplace. It also provides an analysis of market sustainability - including opportunities and barriers - of wood to energy production.