The document discusses solar energy, explaining its definition, types, and how solar panels are made and function. It emphasizes the environmental benefits of solar power, including reducing carbon emissions and electricity costs, while also highlighting its long lifespan and contribution to grid security. The conclusion advocates for wider adoption of solar energy to combat global warming.

1. Environmental
SciencesProf. Chea Leng

2. GROUP 13
Name ID Name ID
1. Chrea Thailor 88767 7. Suon Tharatdy 127945
2. Sao Buntha 111421 8. Lak Chanboramey 57604
3. Chan Raksmey 92987 9. Chen Menhong 194297
4. Leng Varong 125981 10. Chhun Sichin 115103
5. Phan Sophorn 193379 11. Mao Som Oeurn 135908
6. Som Phanit 118749

3. Content
1. What is solar energy?
2. Types of solar energy
3. How solar panels are made?
4. How does solar energy work?
5. Statistics of using solar energy
6. Why Solar Energy?
7. Conclusion
8. References

4. Solar energy is the energy received by the
earth from the sun. This energy is in the form
of solar radiation, which makes the
production of solar electricity possible.
1. What is solar energy?
Chrea Thailor

5. 2. Types of solar energy
2.1. Photovoltaic Solar Technology
Photovoltaic solar technology, which
directly converts sunlight into electricity
using panels made of semiconductor
cells (France, 1954).
Lok Pha Oun Sao Buntha

6. 2.2 Solar Thermal Technology
Solar thermal technology, which captures
the sun’s heat. This heat is used directly
or converted into mechanical energy and
in turn electricity.
Lok Pha Oun Sao Buntha

7. 3. How are solar panels made?
• Solar World manufacturers solar panels
entirely in the USA from raw silicon to
completed solar panels. This process
involves 4 main steps:
1. Crystal growing
2. Wafering
3. Solar cell production
4. and solar panel assembly
Chan Reaksmey & Phan Sophorn

8. 4. How does solar energy work?
Leng Varong & Som Phanit

9. 5. Statistics of using solar energy
(Updated February 2018)
World Electricity Production
by Source 2017
International Electricity Information, 2012:

10. 5. Statistics of using solar energy
4.9%

11. 5. Statistics of using solar energy

12. 6. Why Solar Energy?
• Environmental advantages
Solar power is a great way to reduce carbon
emissions, reduce greenhouse gas emissions
and it does not pollute our environment.
• Reduced electricity bills
Solar power generates energy from the sun
and it helps to increase electricity efficiency,
so we can generate our own energy instead of
buying which means smaller energy bills.
Lak Chanboramey & Soun Tharatdy

13. • Low maintenance
Once the solar power is installed, it can last
twenty to thirty years and it does not require a
lot of major maintenance.
• Improves grid security
When people switch to solar power, people
will experience less blackouts and brownouts.
Every household that has installed solar
power functions as a small power plant that
provides people with a greater electricity grid
security.
Lak Chanboramey & Soun Tharatdy

14. 7. Conclusion
Since it is estimated that the world’s oil
reserves will last for 30 to 40 years more, the
renewable energy, solar energy, should be
considered to use widely instead of those in
order to reduce global warming and have a
better world.
Chen Menghong & Chhun Sichin

15. 8. References
• Greenmatch, 2018: 7 reasons why you should
use solar power.Text
• https://www.nrel.gov/workingwithus/re-
photovoltaics.html
• International Electricity Information, 2017:
World Electricity Production
• http://www.solarcity.com/residential/how-
does-solar-power-work

16. Thanks

17. 7. Conclusion
• Text
• Text
• Text
Chen Menghong & Chhun Sichin
Name Task Done Name Task
Done
1. Chrea Thailor Not yet 7. Suon Tharatdy Done
2. Sao Buntha Done 8. Lak Chanboramey Done
3. Chan Raksmey Not yet 9. Chen Menhong Done
4. Leng Varong Not yet 10. Chhun Sichin Done
5. Phan Sophorn Not yet 11. Mao Som Oeurn Done
6. Som Phanit Not yet
There are 3 kinds of solar panels available
on the market:
•monocrystalline solar panels
•polycrystalline solar panels
•thin film solar panels