Biomass, is everywhere in a rural or urban area. Take New York as an example. While you are walking on the sidewalk or sitting in your vehicle, you will probably see trash bags sitting on the curb. In those trash bags are most likely organic material like banana peels. Or, from the rural settlement view. If you are in a forest type of location, tress can be burned as biomass. Or as a farmer, the crops can also be biomass.

How to obtain Biomass