Biomass energy is a relatively clean, renewable energy source that uses organic matter that collected energy from the sun and converted it into chemical energy while it was alive. It is a renewable resource because this matter is constantly growing and absorbing the sun's energy, especially where biomass crops are grown.
Most biomass energy comes from plants that have collected energy from the sun through the process of photosynthesis. This form of energy has been used by humans for thousands of years, ever since people started burning wood for heat. Technological advances allow biomass energy to be used in a wide range of applications, including liquids and gases used for biofuels for energy transportation.
