1. RENEWABLE SOURCES OF
ENERGY
BASKAR R

2. WHAT IS ENERGY
 Capacity to do work
 It can not be created
 One form of energy can be converted into other
form of energy

3. WHAT IS RENEWABLE ENERGY ?
 Energy derived from natural
 Continuously produced in nature
 Non exhaustible
 Clean alternative to fossil fuels

4. WHAT IS AN ALTERNATIVE SOURCE OF
ENERGY?
 An energy source that
can be used instead of
fossil fuels
 It is usually a renewable
source of energy that
could be used should
fossil fuels run out

5. SOURCES
 Solar energy
 Wind energy
 Bio mass energy
 Geo thermal energy
 Tidal energy
 Hydro energy

6. SOLAR ENERGY
The energy utilized from sun light is called
solar energy
There are two methods for harvesting solar energy
 Concentrating Solar thermal Plant(CSP)
 Photovoltaic plants(PV)

7. CSP

8. SOLAR PHOTOVOLTAIC PLANTS

9. WIND ENERGY
 Moving air = wind
 Energy that got from wind is called wind energy
 Wind turbines are used for getting energy
 Each wind turbine can produce between 0.25 to 2
MW of electrical power.
 Wind farm needs to be located where there is a
relatively high average wind speed.
 It requires min 15km/hr speed of wind

10. WIND TURBINE

11. TIDAL ENERGY

12. HYDEL ENERGY
 Currently largest source of electricity from
renewables.
 Needs guaranteed supply of water.
 Kinetic energy of water rotates turbines which
generate electricity.

13. WORKING OF HYDEL PLANTS

14. GEO THERMAL ENERGY
 The heat that used for geo thermal energy can be
derived from deep within earth
 Heat conducts from core to sorrounding rock
 High temp and pressure cause rock to melt which is
called “Magma”
 Magma converts upwards

16. GEO THERMAL POWER PLANT

17. ENERGY FROM WASTES

18. GREEN POWER
 100% pure RDF(Refuse Derived Fuel)
 15MW power plant in Surat , Gujarat by Hanjer
Biotech energies
 The RDF generated from municipal solid waste is
dried , crushed and then packed to brick form
 300 tones of RDF required

19. ADVANTAGES OF USING NATURAL SOURCES
OF ENERGY
 They are inexhaustible – they will always be
available – they are renewable
 They are clean and will not damage the Earth
 There are several types – so one or more of them is
present in each country
 Most natural sources can be used on a small scale
and serve local needs therefore cutting costs of
transmitting the energy

20. ENERGY CONSUMPTION IN INDIA (2005)

21. ENERGY ESTIMATION IN INDIA (2030)