The conventional energies are produced from fossil resources- such as coal and petroleum. Due to the maximum use of such kind of energy, the total fund resources are going to be finished soon. So we must need to find and innovate technologies to develop more non-conventional energy sources. Scientists around the world are trying to do just that through innumerable development and research projects. They are trying to convert those non-conventional energy resources into power electricity and other functional fuels. As because of the increment in urbanization and electrification of rural areas, there is a huge scarcity of electricity in India. So the conversion of non-conventional energy resources into power electricity is very important. Solar energy, wind energy, tidal power and Bio-Energy and geothermal energy are some example of non -conventional energy sources. There is a huge storage of oil shale and tar sand in the world. These energies are ready to help us in the near future. We hope that these energy resources will last for a long period of time. Subsequently, we are able to generate electric power on a mass basis from them

Mythologically as well as scientifically there is a valuable contribution of sun ray in the existence of all living being in the world. It not only enlightens at day time but also provides a huge amount of heat energy. Every hour the earth gets a lot of heat energy from the sun. This amount of heat is equivalent to the heat produced from 21,000 billions ton coal burning. The fund resources – such as coal and petroleum are decreasing day by day. So the scientist and engineers are interested to use solar energy more commercially. In an estimation, it was found that the amount of solar energy available in the US is 700 time higher than the total consumptions. In the near future, this source is going to be the major energy source around the world. Tropical countries get abundance solar energy every year. So there is a tremendous prospect in these regions too. For that, some well-documented plans should be undertaken. By using solar thermal electric conversion, it is possible to produce few mega watts electricity. Photo voltaic energy conversion is a well-known process for using solar energy. Silicon solar cells play a vital role in the production of solar energy. Silicon or other semi-conductor plates are able to produce D.C. (Direct Current) from solar energy. The Bell Laboratory in US first made silicon solar cell in 1955. This process is known as photo electric energy conversion and it is highly dependent on direct solar energy. The dry, deserted areas of tropical countries are the best places for such production. LUZ in US is the world largest solar energy production plant. It is in the south-west Mojave Desert.

Human technologies are unable to use the ubiquitous solar energy received by the earth. Energy crises are not a problem at all, if that is possible. Apart from the conventional electric energy solar energy has other advantage also. Using of such energy reduces the production of green house gases. Consequently, it is helpful to stop global warming also.