Conducter

Biomass is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops and waste from forests, yards, or farms. Since biomass technically can be used as a fuel directly (e.g. wood logs), some people use the terms biomass and biofuel interchangeably. More often than not, however, the word biomass simply denotes the biological raw material the fuel is made of, or some form of thermally/chemically altered solid end product, like torrefied pellets or briquettes.

The IPCC (Intergovernmental Panel on Climate Change) defines bioenergy as a renewable form of energy. The IEA (International Energy Agency) defines bioenergy as the most important source of renewable energy today. IEA also argue that the current rate of bioenergy deployment is well below the levels required in low carbon scenarios, and that accelerated deployment is urgently needed.They recommend a five-fold increase in sustainable bioenergy feedstock supply. The claim that the use of forest biomass for energy is carbon neutral is disputed by research groups that focuses on short term climate benefits. However, it remains the mainstream view, supported by for instance the IPCC, FAO (Food and Agriculture Organization of the United Nations) and IEA.