Now a days, the public/private and government sectors are giving more emphasis on the development of non-conventional energies in which biomass and solar energy are very progressive. Solar energy are available in the nature in a huge quantity. We have only to develop our method and techniques to extract the useful energy from it. In the similar way the waste materials are available in the huge quantity from which we have to abstract the biomass energy from it. Thus, we must also make effort towards the development of new techniques for the extraction of energy like biomass and solar. The solar energy is tremendous all over the world. If we can make ourselves so efficient to abstract the total solar energy and convert it to useful power then there is no need to depend upon another sources of energy. The resources of thermal energy are coal and nuclear fuel which are not much more sufficient on the earth. Day by day they are decreasing and a day may come when it will be totally vanished and at that time we will have to depend upon another sources of energy. This case is also similar with the hydel energy. The resources of water are decreasing day by day. The rivers are losing their water and the growth rate of rivers and dams are very less. So in this case the growth rate of hydel energy cannot be enhanced. But in case of Biomass and solar the resource is huge and it cannot be vanished. We must have only the skill and techniques to abstract from it. If we can develop ourselves in such a way that we can abstract the total biomass and solar energy to useful power in that case we would not have to depend upon other sources of energy. Only these two will be sufficient to supply the demand of power all over the world.