Solar Energy Fossil Fuels

Introduction to solar energy fossil fuels:

The fossil fuels which are preserved under the Earth’s crust as the remains of plants and animals are called fossil fuels. These fuels were formed in prehistoric times. Following are the main types of Non-renewable resources of energy. [1] Coal, [2] Petroleum [3] Natural gas. These non-renewable sources are available in very limited amount. Their judicious use is very important for the sustainable development. It takes many years to make them but are being consumed at very brisk pace.

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Origin of Non-Renewable Sources of Energy:

It is widely believed, that millions of years ago, due to certain natural calamities, such as earthquakes, cyclones, storms, floods, etc., large number of animals and plants got buried beneath the earth. Under humid conditions and very high pressure and temperature of the earth and the bacterial decomposition in the absence of air, they gradually decomposed to form coal, petroleum or natural gas, depending upon the external factors to which they were subjected. It is assumed that the energy supplied by fossil fuels is basically the energy which was supplied by the sun, millions of years ago. These sources of energy are non-renewable because they cannot be renewed over a short period of time. Hence, they are very precious.

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Origin of Non-Renewable Sources of Energy:


The sun is the source of all energy. The sun provides us heat and light energy free of cost. The energy obtained from the sun is called solar energy. The nuclear fusion reactions taking place inside the sun keep on liberating enormous amounts of heat and light energy. This heat and light energy is radiated by the sun in all directions in the form of solar energy. The sun has been radiating an enormous amount of energy at the present rate for nearly 5 billions years and will continue radiating energy at that rate for nearly 5 billion years more. Since, the sun is very far away only a small fraction of the solar energy radiated by the sun reaches the outer layer of the earth’s atmosphere. A little less than half of the atmosphere actually reaches the surface of earth. The rest of solar energy is reflected back into space by the atmosphere and also absorbed by the atmosphere as it comes down through it towards the surface of the earth.