Other renewable energy sources such as solar, wind, and tide make up a very small fraction of the world total energy supply. Biomass, on the other hand, corresponds to 10.6% of the world total energy supply and 79.4 % of the total renewable energy supply (8).
Currently, the most common way of using biomass is for generating electricity, but converting it to a liquid form is quickly becoming an important product. This is a positive sign that renewable sources of energy are gaining ground (9). |