This document discusses solar energy as a solution to energy crises around the world. It notes that solar energy can help address scarcity of non-renewable resources as the sun provides vastly more energy than what is consumed. Solar power plants are described as converting sunlight into electricity through large installations of solar panels connected in series and to power grids. While solar energy has advantages of being renewable and producing electricity without fuels, it also has disadvantages like high initial costs and only working in sunny regions.

1. Main problem in various Countries

2. Contents:
 Energy Crisis
 How can WE eradicate this?
 Renewable Sources of Energy
 “Solar Energy”(SE)
 Origin of SE
 Construction of Solar Power Plants
 How can we use SE efficiently?
 Advantages and Dis-advantages
 Conclusion

3. This is what we are going to see in future...!?
Especially in “INDIA”

4. Scarcity of
Resources..
Leads to the increase
in the cost of many
resources....
Which Results in
the doubt of loss of
existence of the
NON-Renewable
Resources in
FUTURE...!?

5. Present Situation of Energy
Resources
At Present We are in 2015..
The Statistics shows us the
Energy Resources have
started Decreasing Day by
Day....
If we Doesn’t take a step
now!
The Energy resources will
definitely loss there
existence in the world..

6. To Save the Energy Resources
There are some Precautions which we need to take:
 Decreasing the usage of Fuels as much as possible
 Implementing the different methods of consuming
less Energy
 Usage of Renewable sources instead of Non-renewable
source of Energy

7. Available Energy Resources:

8. Different types of energy resources
 Wind Energy
 Solar Energy
 Hydal Energy
 Tidal Energy
 Nuclear Energy
 Biomass Energy Etc..,
 All othe Renewable
Sources of Energy.

9. Usage of Diff. Types of Energies

11. ….and its many uses

12. SOLAR ENERGY
A FEW FACTS
 Every day the earth receives thousands of times
more energy from the sun than is consumed in all
other resources.
 If a 140x140 mile parcel of land in Andhra Pradesh
was covered with solar cells, the electricity needs
of the entire United States could be met.
 The sunlight falling on a typical house can provide
from 1/3 to 1/2 of the heating needs of that house.
 Today solar energy accounts for only 1% of the total
renewable energy consumed in the United States

13. Construction of Solar Cell:
Simple circuit diagram of Solar cell

14. A normal Solar Panel..! Looks as follows

15. Formation process of Electricity
from SUN :

16. SOLAR HEATING TODAY
 Used mostly for
heating pools and
domestic hot water
(DHW)
 Two types of solar
heating systems:
 Active Solar Heating
System
 Passive Solar Heating
System

17. Solar Power Plant
This is the Solar
power plant which
is present in
Gujarat(INDIA)

18. Solar Power plant in Rajasthan(INDIA)

19. Key points:
 On an average each solar cell produces an emf about
0.9 to 1.5v..!
 So that in a Solar Power Plant...! The solar panels are
connected in series so that the all the emf’s add up and
gives us the sufficient amount of Voltage..!
 Those Solar panels are connected to a GRID
 This is how ELECTRICITY is produced through solar
energy...1

20. Advantages of Solar Energy
 Highly Efficient....
 Rich source of Energy
 Can produce electricity easily in sunny
regions(climate)
 No fuel is required
 Renewable source of energy

21. Dis-Advantages
 High cost
 Can’t produce Electricity in all regions
 It requires larger areas to build
 Doesn’t works in the night..!
 Suitable only Sunny climatic Regions