Renewable energy made from materials from biological sources. Wood, charcoal,
manure and crop residues are all traditional forms of bioenergy.
Bioenergy carriers produced from crops like maize or sugarcane are known as
biofuels, while biogas refers to the mixture
of methane and
carbon dioxide produced by the bacterial
decomposition of organic wastes.
Biofuels - Biomass - Renewable energy - Wood energy
To read about this term in context:
GreenFacts Summary on Forests & Energy: