Hey there this might help you in your school project of solar power or solar energy or non renewable energy. I made this ppt to submit for my school project.

2. Primarily I would Thank my physics
Teacher Mr. “Subject Teacher Name”
whose valuable guidance and
instructions has served as the major
contributor towards the completion of
the project.
Student Name
ACKNOWLEDGEMENT

3. Now , a days with the growing population and energy
demand we should take a renewable option of
energy source and also we should keep in mind that
energy should not cause pollution and other natural
hazards.
In this case the solar energy is the best
option available out there for us.
INDIA is highly populated country , so we
should take advantages of such an energy.
INTRODUCTION

4. The Earth intercepts a lot
of solar power :173
thousand tera watts.
That's ten thousand times
more power than the
planet's population uses.
So is it possible that one day
the world could be
completely reliant on solar
energy? To answer that
question we first need to
examine how solar panels
convert solar energy to
electrical energy.

5. HOW SOLAR CELL WORKS

6. Solar panels are made up of
smaller units called solar
cells. The most common
solar cells are made from
silicon
a semiconductor that
is the second most
abundant element on
Earth.

7. In a solar cell , crystalline silicon is
sandwiched between conductive
layers. Each silicon atom is
connected to its neighbors by four
strong bonds , which keep the
electrons in place so no current can
flow. A silicon solar cell uses two
different layers of silicon.
An n-type silicon has extra
electrons, and p-type silicon has
extra spaces for electrons, called
holes. Where the two types of
silicon meet. electrons can wander
across the p/n junction, leaving a
positive charge on one side and
creating negative charge on the
other.

8. You can think of light as the flow
of tiny particles called photons
shooting out from the Sun. When
one of these photons strikes the
silicon cell with enough energy, it
can knock an electron from its
bond, leaving a hole.
The negatively charged electron
and location of the positively
charged hole are now free to move
around. But because of the electric
field at the p/n junction they'll
only go one way. The electron is
drawn to the n-side. while the hole
is drawn to the p-side.

9. The mobile electrons are collected by
thin metal fingers at the top of the cell.
From there, they flow through an
external circuit, doing electrical work,
like powering a light bulb, before
returning through the conductive
aluminum sheet on the back.
Each silicon cell only puts out half a volt
, but you can string them together in
modules to get more power. Twelve
photovoltaic cells are enough to charge a
cell phone, while it takes many modules
to power an entire house. Electrons are
the only moving parts in a solar cell, and
they all go back where they came from.
There's nothing to get worn out or used
up, so solar cells can last for decades.

10. What's stopping us from being
completely reliant on solar power?
There are political factors at play
for now, let's focus on the physical
and logistical challenges, and the
most obvious of those is that solar
energy is unevenly distributed
across the planet.
Problems in the way of solar Energy
Some areas are sunnier than
others. 's also inconsistent. Less
solar energy is available on
cloudy days or at night. So a total
reliance would require efficient
ways to get electricity from sunny
spots to cloudy ones, and
effective storage of energy.

11. The efficiency of the cell itself is a
challenge, too. The most efficient solar
cell yet still only converts 46% of the
available sunlight to electricity, and most
commercial systems are currently15-20%
efficient. In spite of these limitations, it
actually would be possible to power the
entire world with today's solar
technology.
Meanwhile, solar cells are getting better,
cheaper, and are competing with
electricity from the grid. there's the fact
that over a billion people don't have
access to a reliable electric grid,
especially in developing countries. So in
country like India, solar energy is
already much cheaper and safer than
available alternatives, like kerosene ,
coal , or natural gas.

12. Solar Power Plant in Sikkim
Sikkim is a state located in the North-Eastern part of India.
It is the least populated state in India and has its capital in
Gangtok. Sikkim is also a state with one of the lowest
commissioned solar power standing at 0.01 MW. A couple
of years ago, this number was at 0MW
with 0.01 MW being added to the
grid. Government has committed
to installing a cumulative solar
capacity of 2.5 MW. This is a
rather small number against the
solar potential of the state that
stands at 4,940 MWp.

13. Currently, 11 projects have
been sanctioned with a
capacity of 0.7MW with
the state providing at
least 90% of funding in
case of these projects.
By the year 2022, Sikkim has been set a target of
86MW of grid-connected power by the year 2022
as a part of the National Solar Mission.
Currently, installation of 7.5MW of rooftop solar
projects and 10MW of ground-based solar power
plants.

14.  To fullfil the increasing energy demand of
people.
 To have a sustainable source of energy.
 To meet requirement of energy after vanish of
fossil fuels.
 To have a renewable source or non polluting
source of energy.
CONCLUSION
The human civilization needs solar power