Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
Solar Cellphone Charger
I.
Question: How does the type of energy affect the cost?
II.
Hypothesis…
If we charge a cellphone with a circuit that will be connected to four solar panels, then
Sun energy would be recycled, and accurate data would confirm the elevated cost of
Solar Energy.
Why? Our project is based on solar energy; this project was done, because like this
solar energy is transformed into electricity, and due to the fact that solar panels will be
attached to a hat, then it is a portable way to recycle energy and take care of your skin.
Equally important, Solar Energy is a great renewable source common used, though to
the expensive costs.
III.
Research…
In many occasions we are being very harsh and we are damaging many of our
natural resources and even our world. Solar energy could benefit us in many ways as
saving our planet and even the services bill. In many places in the world engineers are
constructing modern and helpful edifications with solar energy and also if you pay
attention you should know that energy is all in our life’s because without it we
wouldn’t have light and we could not take hot water baths and we wouldn’t have even
hot coffee of even hot food. Even though many countries with little resources are now
using solar energy so know they can produce their energy without the need of bringing
it from other place or country.
Benefits:
The solar energy could help us in many things not just as reducing the bill of
electricity but also for our future and conserving our planet. Solar energy is mostly very
uncommon type of energy in the world and really it has not impacted our lives much.
This is the reason of this project to everyone to know how this energy could benefit our
lives and if the world starts using them all the carbon dioxide emissions will decrease
and our environment will be cleaner and not as contaminated as today’s environment.
Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
Current Energy:
Current energy or the normal energy you charge every night your cellphone is
the most common energy in this planet. Energy makes a really big part of our lives, but
either way it’s polluting our planet, in order to make the (regular) energy we need to
burn coal, oil and there is where the problem is because smoke emissions go through
air and contaminates the environment and that’s why the global warming is affecting
the planet.
IV.
Experiment…
a) Variables:
 Dependent: Energy Cost (measured in Colombian pesos-COP)
 Independent: Type of energy (Solar energy & Electricity)
 Control:
 Sunlight
 Cellphone
 Place
 Circuit
 Panels
b) Materials:







4 solar panels
4 pieces of telephone cable (equally sized)
1 piece of soldering iron (25 cms)
1 hat (every type)
1 Cellphone charger (whatever kind depending on the cellphone)
1 Cellphone of any brand (that needs energy)
1 Poster Board
Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
c) Procedure:
1. Buy all the materials.
2. Get the 4 solar panels and paste them with soldering iron.
3. Form all the circuit (parallel, series, etc.).
4. Arrange all the structure with the hat.
5. From the positive and the negative, paste them to the electronic tablet.
6. Paste all of the little pieces to the tablet.
7. Take the battery holder, insert the batteries, and connect it with soldering iron
to the tablet.
8. Then, paste the cellphone charger piece to the tablet and connect it to the
cellphone.
9. Check that the soldering iron pasting well done, and also check if the led is on.
10. Finally enjoy your charger and recycle the ENERGY!!!
Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
V.
Data and Observations
a) Table-Chart
Time (Hours)
0
Electricity Cost
$0
Solar Panel Cost
$22.900
5
$8.5
$22.900
10
$17
$22.900
15
$25.5
$22.900
20
$34
$22.900
25
$42,5
$22.900
30
$51
$22.900
35
$59.5
$22.900
40
$68
$22.900
45
$76.5
$22.900
50
$85
$22.900
55
$93.5
$22.900
60
$102
$22.900
65
$110.5
$22.900
70
$119
$22.900
75
$127.5
$22.900
80
$136
$22.900
Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
85
$144.5
$22.900
90
$153
$22.900
95
$161.5
$22.900
100
$170
$22.900
b) Graph
Martin Arango and Nicolas Londono
Science Fair Project: Final Report
Mr. Jose Luis Vega
Life Science 7
The Columbus School
March 20, 2013
VI.
Conclusion
Our project made us believe that if we keep using renewable sources for generating
electricity our planet would have a safer atmosphere and even our future would be in
better conditions. Otherwise, the generation of Electricity through non-renewable
sources, such as fossil fuels, causes many pollution and these Natural Resources will
end. On the other hand, was a great experience testing this experiment, and we
learned very much, like how to use new items, such as items like the soldering iron,
screws and cables and other technological items. Equally important, the hypothesis
stated at the beginning of the experiment was mostly correct, due to the fact that the
led went on but the panels with the batteries don’t make the total watts that the
cellphone needs so that could be an error. Some sources of error were connecting
some cables and spilling some soldering iron in some places that were delicate;
additionally, the next time we should measure the watts and volts with more precision
to be 100% efficient secure that the cellphone will charge perfectly. In conclusion, I´ve
considered this was a wonderful experience to us, we learned about many things that
let us have more knowledge and for the next time having a more precise experiment,
with a 100% efficiency.
VII.
Bibliography
Field Listing :: Electricity - imports. n.d. Web. 19 March
2013. <https://www.cia.gov/library/publications/the-world-factbook/fields/print_2043.html>.
Renewal Energy (Arizona Solar Center) n.d. Web. 19 March
2013. <http://www.azsolarcenter.com/education/renewable011199.html>.
solar energy. The Columbia Encyclopedia, Sixth Edition. 2001. n.d. Web. 19 March
2013. <http://www.bartleby.com/65/so/solarene.html>.
Turning to solar energy in Middle East. n.d. Web. 19 March
2013. <http://www.cnn.com/video/#/video/world/2013/03/19/dnt-lakhani-uae-solarenergy.cnn>.