Question

Explain in detail the types of energy resources.

Answer 1

Energy is essential for life and it is called as transmission of life. There are many sources of energy such as coal, atomic energy, natural gas, petroleum etc. The energy resources are used to conduct domestic, industrial and agricultural work. The energy resources are of two types-

(A) Renewable Energy Resources :
The renewable resource is a resource which can be used repeatedly because it is replaced naturally i. e. they are naturally replenished fast enough as being used. It includes sunlight, wind, biomass, rain, tides, waves, geothermal heat etc.

• Solar energy : It is the radiant energy emitted by the sun. The solar energy is unlimited and can be used infinitely. It does not cause pollution. The solar energy can be used directly as heat energy or by converting it into electrical energy. It can be stored by backup method and can be used during night.
• Hydro energy : It is the power derived from the energy of falling water or fast running water. This power is used to generate electricity with the help of water turbines. The hydro energy is cheaper than the thermal energy.
• Wind energy : The use of air how through wind turbines to mechanically power generators for electric power.
• Tidal energy : It is a form of hydro power that converts the energy of the tides into electricity using tide mills.
• Geothermal energy : It is heat energy generated and stored in the Earth. Hot water currents & hot streams are used to generate electricity using turbines.
• Sea wave energy : Ocean waves are caused by the wind as it blows across the sea. These waves are powerful source of energy. Which is used to turned the turbine which turns a generator.

(B) Non-Renewable Energy :
A nonrenewable resource is a resource that cannot be readily replaced by natural means on a level equal to its consumption. They are limited in quantity because their formation takes billions of years. They are as follows :

• Fission fuel : Fossil fuel includes coal, petroleum, CNG etc. The deposits of coal & petroleum is limited and their consumption is more. Therefore, their economical.use is required so that they can be available in future also.
• Atomic energy : Atomic energy is obtained by fission of radioactive uranium. The deposition of uranium is limited. Hence, it is advisable to minimize the use of atomic energy.

Conservation of Management of Energy Resources :

1. The use of Renewable energy resources should be preferred.
2. Limiting the use of petroleum & searching its new deposits
3. Maximum use of solar energy.
4. Mixing of 20% ethanol in the petrol to reduce its consumption & to minimize pollution.
5. To encourage the use of bio fuel.