Renewable sources of energy are linked with nature .We extract renewable energy from natural sources like sun, ocean, winds etc.It would be reasonable to say that renewable energy are exploited from natural resources thus there is excess of renewable sources and it does not get exhaustible however it is we human beings who can make the efficient use of the renewable energy.

There are mainly 10 renewable energy sources which are given below

1. Nuclear energy

It is extracted from atomic nuclei. To extract nuclear energy process of nuclear fission takes place. A utility reactor produces steam which is turned into mechanical works which then generates electricity

2. Solar energy

It is given to us by a sunlight though it is ample in quantity yet it is expensive to produce energy through sunlight as installation of solar panel is quiet expensive and for households the cost of installing solar panel is too high however for industries it is not much expensive since they many big industrial units.

3. CNG

CNG stands for Compressed Natural Gas. It is an alternative for diesel, gasoline and propane gas. It is cleaner in nature but still it releases greenhouse gases.

4. Hydro electricity

It is a popular renewable source of energy. It is generated through gravitational force of a falling water and is widely used across the globe .It has few detrimental consequences as well like it causes loss to biodiversity of marine life.

5. Radiant energy

Cost of ordinary electricity can be saved by radiant energy.Tesla was the first one who use radiant energy in the formation of telephone. It has a same functioning like electricity but its behavior is change from electricity.

6. Geothermal energy

As the name suggests Geothermal energy is basically generated from the heat of the earth. It is sustainable in nature. Its range is from the shallow ground to hot water.

7. Wind energy

Wind energy is generated through wind turbine. Main application of wind power today is production of electricity.Moreover, history has also proven that wind power also used in the sailing of ships.

8. Tidal energy

Tidal energy is not widely acclaimed source. However it has great potential to become in future. There are two ways of generating tidal energy which are tidal stream generators and barrage generation. This source of energy is extracted from earth-moon system.

9. Biogas

Biogas is a mixture of methane, carbon dioxide, hydrogen and hydrogen sulphite.It is produced through the waste of plants and animal.Furthermore, it is a low cost fuel.

10. Biomass

It is basically the energy from organic matter. Wood is also today the largest biomass resource today. Apart from wood we have plants, residues of agriculture to generate biomass.