This presentation discusses solar panels and solar energy. It provides a brief history of solar technology and describes the main components and types of solar panels. The presentation explains how solar panels work to generate electricity from sunlight and transmit that power to homes. It discusses the advantages and disadvantages of solar panels. Examples of solar panel installations at BUBT are shown. The presentation also provides data on the contribution of solar power to total electricity generation in countries like China, Germany, the US, and Bangladesh. It analyzes the potential for solar home systems in Bangladesh.

1. Bangladesh University of
Business and Technology
Presentation
Course Title: Arechitectural,
Engineering and
planning apprecitation
Course Code: CE 140
Department of Civil engineering

2. •
Name : Khadiza Akter Prianka Name : Imran Hossain Name : Md.Ekbal
ID : 21225109043 ID : 21225109031 ID : 21225109047
Intake : 04 Intake : 04 Intake : 04
Submitted By

3. Name : JhumurAkter Name : Md.YellowAno Name : ToiwmoonAktana
ID : 21225109036 ID : 21225109033 ID : 2122510908
Intake : 04 Intake :04 Intake :04

4. Submitted To
Md. Sanaullah Shamim
Assistant professor
Department of Civil
Engineering

5. SOLAR PANEL

6. History of solar
• The photovoltaic effect was first
experimentally demonstrated by
French physicist Edmond Becquerel
,In 1839.
• Albert Einstein explained the
underlying mechanism of light
instigatedcarrier excitation- the
photoelectric effect- in 1905

7. History of solar
• The first practical photovoltaic cell was publicly
demonstrated on April 25,1954 at Bell
Laboratories
• From 2002 we can see the modern solar cell

8. What is solar panel?
A solar panel is a flat construction
resembling a window, Solar panels
are those devices which are used to
absorb the sun's rays and convert them
into electricity or heat. A solar panel is
actually a collection of solar (or
photovoltaic) cells, which can be used
to generate electricity through
photovoltaic effect.

9. Forms of solar energy
• 1) Solar Thermal-Using sun energy to
heat thing like your house ,water ,food,
etc.
• 2)Solar Electric- Turning light from the sun
directly into electricity,using solar
panels.

10. What types of solar
panel?
1.Monocrstalline solar panel
2.Polycrstalline solar panel
3.Thin Film
4.Concentrated PV cell

11. Comparison among the four types of solar cells and
efficiency
Material Efficiency(%)
Monocrystalline 20%
Polycrystalline 15%
Thin Film 7-10%
ConcentratedPV cells 41%

12. What are the Main Components of a Solar Panel?

13. How Do Solar Panels Work On
A House?
• First, sunlight hits a solar panel on the roof. The
panels convert the energy to DC current, which
flows to an inverter. The inverter converts the
electricity from DC to AC, which you can then use
to power your home. It's beautifully simple and
clean, and it's getting more efficient and
affordable all the time.

14. Basic StepsIn Solar
EnergyGeneration
And Transmission
Sunlight hits the solar panels, and creates an electric field.
The electricity generated flows to the edge of the panel, and
into a conductive wire.
The conductive wire brings the electricity to the inverter,
where it is transformed from DC electricity to AC, which is
used to power buildings.
Another wire transports the AC electricity from the inverter
to the electric panel on the property , which distributes the
electricity throughout the building as needed.

15. Solarpanel
advantages
1.Solar reduces electric bills
2.Solar panels improve the value of your home
3.Going solar reduces your carbon emissions
4.A solar installation protects against rising energy costs
5.You can earn money back on your solar investment
6.Solar is a versatile energy source
7.Solar electricity can be sold back to the grid
8.Solar panels require very little maintenance

16. Solar
panel disadvantages
1.Location & Sunlight Availability
2.Solar Panels Use a Lot of Space
3.Sunshine is Unreliable
4.Solar Panels are Inefficient
5.Solar Panels Create EnvironmentalDegradation
6.Solar Panel Production Uses Fossil Fuels
7.Solar Panels Create Toxic Waste
8.Expensive Energy Storage
9.High Initial Cost
10.Solar Panels Could DamageYour Roof

17. BUBT
Building–1
solarpanel
figure-1

18. BUBT Building –1
solar panel figure -2

19. Application of solar
Energy
• Water heating
• Air heating for agricultural and industrial
applications
• Heating and cooling of building
• Cold storage for preservation of food
• Cooking of food
• Green houses
• Distillation of water
• Water pumping
• Solar furnaces
• Power generation
• Solar Photovoltaic

22. Solar panel impact on
environment
• Since there are 1,000 solar panels in the
array, each saves around 3.3 metric tons of
CO2-eq during the 25-year service life. In
addition to Solar panels fight global warming
by producing electricity that keeps us from
burning greenhouse gas-producing fossil
fuels.

23. Space Based solar panel vs
conventional solar panel
efficiency
• These panels can reach up to
around 34% efficiency vs. the 15-
20% that mostcommercial solar
panels can reach. Satellites in
space are also equipped with
solar panels that can follow the
direction of the sun to maximize
their absorption of sunlight

24. Solarpowerin China
• As the most populous country in the world,
China also produces the most solar energy
internationally. While only accounting for
roughly 3.5%of the country’s total power
generation in 2020, solar power in China has
grown tremendously year over year since 2011,
when government incentives were first
introduced.

25. Contribution of solar Energy to power generation in China

26. Contributionof solarEnergyto powergenerationin Germany

27. Contribution of solar Energy to power generation in USA

28. Contribution of solar Energy to power generation in
Bangladesh

29. SOLAR HOME SYSTEM POTENTIAL
IN BANGLADESH
• Bangladesh is situated between20.30-20.38 degrees north latitude
and 88.04-92.44degrees east which is an ideal area for solar energy.
Utilization of solar energy potential is very significant for the impact
analysis of SHS in our country. Daily average solar radiation varies
between 4-6.5 KWh per square meter. We can get maximum amount
of radiation on March-April and minimum from December-January.
According to recent studies, yearly average insulation availability in
Dhaka is 1.73MWhper square meter on a horizontal surface and
1.86MWhper square meter on a tilted surface. Againthe annual
amount of radiation is varies from 1840-1575KWh/m2 which is 50-
100%more than Europe.

30. Thank you