The original source of the energy present in biomass is the sun. These compounds include sugars, starches and cellulose - collectively called carbohydrates. The original solar energy is now stored in the chemical bonds of these compounds. How biomass is used Scientists are busy developing different ways of converting biomass into a form that meets our energy needs, while making best use of the available energy. Making haste with waste One source of biomass material is waste.
Human society produces a veritable compost heap of organic waste.
One of the reasons that energy from biomass is receiving so much attention is that it represents an opportunity to convert waste into something very valuable. In Australia, the potential value of organic waste as an energy source is only just starting to be tapped, with the sugar industry leading the way. The present installed electricity generating capacity of all the sugar mills in Australia is about 250 megawatts , 60-70 megawatts of which is sold to the electricity grid. According to the Sugar Research Institute, this is only a fraction of the potential capacity should more efficient systems be installed. One way of improving efficiency is called cogeneration , the practice of producing both electricity and useful heat.