Solar energy.docx
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SOLAR PANELS•Nguyễn Thị
Thùy•Vũ Thị Hồng•Bùi Thúy Nga
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Overview Principle Application
OUTLINE
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OverviewHistory
Conception
Classification
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•In 1839 Alexandre Edmond Becquerel discovered the photovoltaic effect which explains how electricity can be generated from sunlight.•Around 1883 the first genuine solar cell was built by Charles Fritts.•In 1941, the silicon solar cell was invented by Russell Ohl.•Based on solar cell work of Russell Ohl, solar panels were made in 1955.
History
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Conception•Devices that convert light into electricity• Solar panel is a collection of solar cells
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• The more light that
hits a cell, the more
electricity it produces
solar cell
Conception
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ClassificationBased on structure => 3 main types of solar panels
Monocrystalline silicon
Polycrystalline silicon
Amphorphous modules
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Monocrystalline silicon (mono-silicon or single silicon)
Monocrystalline, as the name suggests, is constructed using one single crystal, cut from ingots.
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Monocrystalline silicon (mono-silicon or single silicon)
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Polycrystalline silicon (multicrystalline, multi-silicon, ribbon)
Polycrystalline (or
multicrystalline) modules
are composed of a number
of different crystals.
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Polycrystalline silicon (multicrystalline, multi-silicon, ribbon)
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Amphorphous modules
The manufacture of these panels is highly automated - silicon is sprayed onto the substrate as a gas (called 'vapour deposition')
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Amphorphous modules
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OverviewPrincip
le Application
OUTLINE
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Principle
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How
solar
cells
work
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Overview PrincipleApplicat
ion
OUTLINE
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Advantages
•A renewable energy•Clear and non-
polluting
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• No fuel costs or fuel supply problems
Advantages
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•They are long lasting sources of energy which
can be used almost anywhere•Having long life time•Solar cell technology to generate thousands of
hours of electricity with minimal maintenance.
Advantages
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Disadvantages•Solar cells and solar panels are very expensive
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Disadvantages•Air pollution and weather can effect the production
of electricity•Solar power can not be obtained in night time
•Needing large
areas of land to
produce more
efficient power
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ApplicationsRural electrification: the provision of electricity to
rural areas derive important social and economic
benefits.
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Water pumping
Commercial
building system
Applications
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Photovoltaic solar generators:
provide electrical
power to
satellites in an
orbit
Applications
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Solar cells are also connected in series in
modules, creating an additive voltage
Applications
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ApplicationsTelecommunication systems: radio transceivers on
mountain tops
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Water pumping
Commercial
building system
Applications
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References
http://www.solarpowerinc.net/page.aspx?pageid=13
http://energyinformative.org/best-solar-panel-monocrystalline-polycrystalline-thin-film/
http://www.journals.elsevier.com/solar-energy-materials-and-solar-cells
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Thank you for your attention!