In today"s world we need to conserve energy or we need to arrange non conventional energy for surviving.

1. Inevitability of renewable
energy for persistence of
this world..............

2. It’s a big threat
to us .......
How the blanks
can be filled up
after the
exhaustion of
Conventional
Energy????????

3. The answer is Non
polluting,cheap & Ecofriendly
renewable energy.........

4. The main problems of the
conventional energy are that.....
1.these produces a lots of carbon-di-
oxide,methane,CFC,etc green house
gases.
2. sources of such Energy are rapidly
decreasing................

6. The popular conventional energy
i)Coal Energy
ii)Nuclear Energy
iii)Petrolium Energy
iv)Natural gas Energy

7. What is Renewable energy????
It is the energy that is
collected from resources
which are naturally
replenished on a human time
scale...

8. Samples of Renewable Energy

9. Classification of renewable
energy
1.Hydro power
2.Solar energy
3.Wind energy
4.Geothermal energy
5.Biomass energy

10. Hydro energy
 Using the high speed ocean surface
wave,tidal power and water current of a
dam.....we can generate hydro power by
moving a turbine

11. Solar Energy
Heat and light energy of sun is used to produce
energy in solar cell,photovoltaic
cell,concentrated solar power. ....cells are
connected in series.

12. i)Air flows used to run turbines.
ii)It can produce 1.5-3MW power
iii)Power of wind is proportional to
the wind speed.
Wind power

13. Thermal energy
generate and
stored inside
earth surface
are used to
produce
electricity
Geothermal energy

14.  Biological material
derived from living or
recently living
organisms,it can be used
either directly via
combusion to produce
heat or indirectly after
converting it to various
from of bio fuel…
Biomass energy

16. Depending on the huge demand of energy many
countries have started adopting the renewable energy
seriously

17. Prospects of Renewable energy throughout the
world......................
1)Almost 280 billion dollars has been invested worldwide and
about 7.7 million job opportunities created for construction
of renewable energy..
2)30 countries around the world has 20% of their e energy
through it..
3)Iceland ,Norway generate 100% electricity with renewable
energy.
4)Denmark ,Brazil (86%),Australia (62%),New Zealand
(65%),China ,UK, etc also targeting to achieve the 100% goal..

18. Advancement in renewable
technology

19. Solar plane
"Planet solar
"solar electrical
vehicle.....
world largest
solar boat....

20. Stunning uses of bio-diesel

21. Geothermal powerplants in UK

22. Three Gorges dam in China

23. The Alta wind energy center USA

24. Limitations of Renewable energy ..............
1)Human & animal displacement occurs due to
dam construction
2)reduce water availability in downsteram
3)barriers to migrating fish
4)coastal erosion
5)danger to birds
6)need large windy area to operate
7) visual pollution

25. 8)Low energy density for biomass.
9)biodiversity loss due to land
conversion.
10)Geothermal energy not avaliable
everywhere.
11)Hydrogen sulphide production.
12)low energy density & huge land
requirement for solar energy.

26. Considering all the shortcomings we have to proceed with it
because we have no other options at all

27. Thanks for keeping patience…….