Bio-Mass is a fuel type in the same family as biofuels, and is often thought as a specific type of biofuel. The key difference often used to denote the difference between the two is in the form of the fuel when used. A biofuel is a transformed version of biomass, commonly in the form of ethanol or biodiesel. On the other hand biomass, in this respect, is the use of the raw organic material as a fuel source. Important reasons for incorporating biomass within ones energy consumption are reducing the greenhouse effect and energy security. 

Biomass is grown in a variety of forms, including switch grass, hemp, corn, willow, sugar cane, algae and wood pellets. The energy balance within biomass fuel is hotly contested and debated.

Biomass fuels can be used as either a heating element, a electricity producer, or liquified into a fuel source. Biomass poses an exciting opportunity both for energy consumers and producers on a large as well as small scale.