Non Conventional Energy Resources (Omkar Nayak)

Introduction to non conventional energy resources:

With increasing demand for energy and with fast depleting conventional sources of energy such as coal, petroleum, natural gas etc. the non-conventional sources of energy such as energy from sun, wind, biomass, tidal energy, geothermal energy and even energy from waste material are gaining importance. This energy is abundant, renewable, pollution free and Eco-friendly. It can be more conveniently supplied to urban, rural and even remote areas. Thus it is capable of solving the twin problems of energy supply in a decentralized manner and helping in sustaining cleaner environment.

non conventional energy resources : Types of non conventional energy resources

The different types of non-conventional sources of energy:

1. Wind energy - Wind is another important source of non-conventional energy. The sun heats up the earth unevenly, winds are formed. The kinetic energy of winds can be used to run wind turbines to produce electricity.

2. Hydro power - Generation of electricity from hydro power sources is a low cost, environment friendly and renewable source of energy.

3. Solar energy - Sun is the source of all energy on the earth. It is the inexhaustible source of energy and zero emissions of greenhouse gas and air pollutants. Solar energy can be applied in many ways, including:

i. To generate electricity using photovoltaic solar cells, space solar power satellite.

ii. To heat foodstuffs, through solar ovens.

iii. To heat water for domestic consumption and heating using rooftop solar panels.

iv. To heat and cool air through use of solar chimneys.

4. Energy from wastes - Generation of waste is inevitable in many human activities. In nature, a balance is maintained as the waste generated by animals and human beings serve as nourishment for the plant life. This waste is processed and treated further to produce electricity.

5. Geothermal energy - It is the energy obtained by tapping the heat of the earth itself, usually from kilometers deep into the earth's crust. This energy is derived from the radioactive decay in the core of the earth, which heats the earth from the inside out.

6. Energy from bio gas - Bio gas is based upon the use of dung to produce gas which is used as domestic fuel especially in rural areas. This technique is based on the decomposition of organic matter in the absence of air to yield gas consisting of methane (55%) and carbon dioxide (45%) which can be used as a source of energy.

7. Tidal energy - It is the energy derived from the tides developed in the oceans and seas, which is used for generating power.

non conventional energy resources : Advantages of non conventional energy resources

They are inexhaustible source of energy.
They are pollution free. Therefore considered to be environment friendly.
They are very inexpensive.

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