Bioenergy is renewable energy made available from materials derived from biological sources. It is a synonym to biofuel, which is fuel derived from biological sources. In sum, bioenergy is the energy extracted from the biomass, as the biomass is the fuel and the bioenergy is the energy contained in the fuel. As a fuel it may include wood, wood waste, straw, manure, and many other byproducts from a variety of agricultural processes. Bioenergy is expected to become ...