Sources of energy Energy can neither be created nor it can be destroyed. It can only be converted from one form to another.

1. SOURCES OF ENERGY
BY- ROJALINA SAHU

2. ENERGY
• Energy can neither be created nor it can be
destroyed. It can only be converted from one
form to another.
• For example-
– In a room heater, electrical energy is converted to
thermal energy.
– Turbine converts mechanical energy stored in
steam to electrical energy.

3. TYPES OF ENERGY
• Renewable and Non-Renewable

4. RENEWABLE ENERGY
• Renewable energy comes from sources or
processes that are contently fill up again.
• Solar energy
• Wind energy
• Hydro energy
• Biomass

5. SOLAR ENERGY
• Solar energy radiant light and heat from the
sun.
• Example-
– Solar cooker
– Solar cell
– Solar heater

6. ADVANTAGES AND DISADVANTAGES
OF SOLAR ENERGY
Advantage
• It does not produce carbon dioxide
• Less impact on environment.
Disadvantage
• Depend on weather
• High cost

7. WIND ENERGY
• Wind energy generated by wind turbines
mainly used to generate electricity.

8. ADVANTAGES AND DISADVANTAGES
OF WIND ENERGY
Advantage
• Wind turbines(windmills) does not pollute
environment.
Disadvantage
• Maintained is very high
• Required continuous flow of wind mainly in
coastal areas.

9. HYDRO ENERGY
• It is generally generated from running water
using various mechanical methods.
• Example:-
– Dams
– Tidal Barrages

10. ADVANTAGES AND DISADVANATAGES
OF HYDRO ENERGY
• Advantages
– Produce very less amount of carbon dioxide.
– Used to control flood and for irrigation
• Disadvantages
– Natural environment is destroyed

11. BIOMASS
• Organic matter made from plants and
animals(microorganism).
• When burned, the chemical energy in biomass is
releases
• Example:-
– Methanol
– Ethanol
– Biodiesel

12. ADVANATAGES AND DISADVANTAGES
OF BIOMASS
• Advantages
– Equipments installation cost is less.
– Helps in garbage reduction
• Disadvantages
– Releases high amount of sulphorous gases

13. NON-RENEWABLE ENERGY
• Energy can’t be generated again and again
from the same source.
• Example:-
– Petrol
– Coal

14. • PETROL- Formed from the remains of animals
and plants
• COAL- a combustible black sedimentary rock
composed of carbon and hydrogen.
NON-RENEWABLE ENERGY

15. DIFFERENCE BETWEEN RENEWABLE AND NON-RENEWABLE ENERGY

16. THANK YOU