What is solar energy?
Types of solar energy
Solar thermal energy
Photovatic energy (PV)
How are solar panels made?
How does solar energy works?
Uses of solar energy
Strenghts of solar energy
Weakness of solar energy
Opportunites of solar energy
Threats of solar energy
4. What is solar
energy?
Types of
solar energy
Solar thermal
energy
Uses of solar
energy
Strenghts of
solar energy
Weakness of
solar energy
Photovatic
energy (PV)
How are
solar panels
made?
How does
solar energy
works?
Opportunites
of solar
energy
Threats of
solar energy
5. What is solar energy?
• Solar energy is the energy that is received from
the sun
• This energy is in the form of sunlight, which
makes the production of solar electricity possible
6. Types of solar energy
Photovoltaic Solar PowerSolar Thermal Energy
7. Solar thermal energy
• The panels on your roof
are the collectors of the
sunlight. The liquid in
the tubes get heaten up
and is then ready to use
for you at home
• Usually used for water
heating
8. Photovoltaic energy
• Solar PV panels are a
slightly newer technology
compared to thermal
• They absorb sunlight and
transform it into
electricity by utilising a
silicon based technology
9. Photovoltaic energy
• Can provide you with
clean green energy
for about 30 years
• Can cover around
60% of your
household’s energy
needs
10. How are solar panels made ?
• Most solar panels produced today are
made from Silicon
• The second element on Earth and the
primary ingredient is in beach sand
11. How are solar panels made ?
• The first step of making a solar panel is to
create silicon ingots
12. How are solar panels made ?
• We let the large
silicon ingot cool
down before slicing
it into thin wafers
using wire saws
13. Howa are solar panels made ?
• These wafers must
be carefully
handled, inspected
and cleaned
14. How are solar panels made ?
• The next step is to
decrease the
reflectivity of the wafer
from 30% to 10% with
a chemical process
that creates tiny
pyramids on the
wafer’s surface
15. How are solar panels made ?
• Now, when a
sunlight hits the
wafer’s surface, it
is more likely to
be reflected into
the wafer rather
than back into
space
16. How are solar panels made ?
• Once your solar panel is installed on your
rooftop you can sit back, relax, and let the
sun save money for you
17. How does solar energy works?
1. Solar panels capture sunlight
and convert it into DC (Direct
Current)
18. How does solar energy works?
2. An inverter then converts DC
into AC (Alternate Current) which
then powers your home in real-time
19. How does solar energy works?
3. If you install a solar baterry the
excess energy can be stored here
(rather than pushing out to the grid)
20. How does solar energy works?
4. Your energy use and habits are
easily tracked with a digital meter
21. How does solar energy works?
5. Any excess energy that you
generate is pushed out to the grid.
This energy is measured and
calculated
22. Uses of solar energy
• Heat the swimming pool or
your water
• Charging the battery
• For cooking
• Indoor or outdoor lighting
• Electricity
• Save your money
23. Strenghts of solar energy
• Solar energy is a
renewable source
• The energy does not
pollute
• Solar cells operate in
complete silence
24. Strenghts of solar energy
• Unlimited resources
availability (if the sun is visible)
• Solar electricity can be
stored for later use or sold
to your power company
25. Weakness of solar energy
• High toxic emission
during the production
of PV cells
• Disposal of PV cells
causes
environmental
pollution
26. Weakness of solar energy
• Solar Panels are
expensive (high initial
investment)
• Solar Power cannot be
generated at night and
they collect less energy
through thick cloud
covers (It can’t be used in non-
tropical regions where the sun light
is less)
27. Opportunities of solar energy
• Research for
cheaper
manufacturing
• Strong market
potential
28. Threats of solar energy
• Danger to the
environment because of
increased imports or
dumping from other
countries (Like India)
• Solar energy could get
unpopular because of its
higher production costs
