Solar energy ppt with effects.It has many useful effects as if movie and is really memembererble and very hot.....people will get atteracted by this slide towards this slides....

1. Good Morning
A Presentation upon Harnessing Solar energy its
prospects and challenges
Welcome to the presentation
Slid
e 1
Name-Ujjwal Kumar
Class- IX ‘A’

2. Introduction
 In today's climate of growing energy needs
and increasing environmental concern,
alternatives to the use of non-renewable
and polluting fossil fuels have to be
investigated. One such alternative is solar
energy.
 Solar energy is quite simply the energy
produced directly by the sun and collected
elsewhere, normally the Earth. The sun
creates In today's climate of growing energy
needs and increasing environmental
concern, alternatives to the use of non-
renewable and polluting fossil fuels have to
be investigated. One such alternative is
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3. What is a solar cell?How does a solar cell works?
Simply put, a solar panel works by
allowing photons, or particles of light,
to knock electrons free from atoms,
generating a flow of electricity. Solar
panels actually comprise many,
smaller units called photovoltaic cells.
(Photovoltaic simply means they
convert sunlight into electricity.)
Some history beyond solar cell!!!!
1950s - Bell Labs produce
solarcells for space activities.
1953 - Gerald Pearson begins
researchinto lithium-silicon
photovoltaic cells. 1954 – On
April 25, 1954, Bell Labs
announces the invention of the
first practical silicon solar cell.
Current contribution of Energy
Resources
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4. Prospects of solar energy
 Water heating
 Cooking
 Water treatment
 Electricity production
 Architecture and urban planning
 Agriculture and horticulture
Water heating
Solar water heaters
facing the Sun to
maximize gain.
Cooking
Parabolic dish
produces
steam for
cooking,
in Auroville,
India
Water treatment
Solar water
disinfection in
Indonesia
Electricity Production
Some of the
world's largest
solar power
stations: Ivanp
ah (CSP)
and Topaz (P
V)
Indian solar resource
Thank you!