Lately, people’s awareness on environment sustainability has been increasing. People are now massively talking about renewable energies and also changing habit in treating environment for a better living on earth. Bio energy is synonymous to bio fuel. It is basically a term that defines an effort to look for renewable energy that is biological rather than the one that is unable to be renewed. It is basically about a new source of energy that is originated more from biological substances. Solar energy seems like the best example for the biological source of energy. It is a new source of energy that comes from the heat and the light of the sun. Actually, our ancestor has used this kind of energy for a long time ago. It is usually valuable for making the energy from wind, electricity and biomass.

All of those kinds of new waves of energy that is renewable and more biological are included in a category of alternative energy. It is a new kind of energy that is trying to look for alternatives of the energies that are not renewable to be changed with the one renewable and more secure for our environment. It is a better energy for our sustainable environment.