We are all familiar with the use of biomass for basic life functions by all animals and humans. All the food we eat contains biomass, whether vegetables, animals, or products derived from them. The energy in these foods is what sustains life in all living organisms. The focus of this Web site is more on the production of energy for residential, commercial, or industrial applications than for food. Considerable debate exists about the competing uses of biomass for food versus energy production. The ethical questions and advisability of using certain food items for energy production are questions that, although very important, are outside the scope of this Web site. This discussion focuses on the technical and scientific aspects of using biomass for energy production.