A basic introduction of Solar Energy. Solar energy is the energy received by the earth from the sun. This energy is in the form of solar radiation, which makes the production of electricity, heat, etc.
2. What is Solar Energy?
Solar energy is the energy received by the
earth from the sun. This energy is in the form of
solar radiation, which makes the production of
electricity, Heat etc.
3. Types of Solar Energy
● Thermal Energy: Thermal Energy is everywhere. It’s lights up
our days. It heats the earth, our bodies and our homes. It dries
our clothes . All for free!
● Electric Energy: Electric Energy uses the power of the sun to
produce electricity through solar cells. This process are known
as Photovoltaics (photo = light, voltaic = electricity).
4. How Solar Panels Works
1. Sunlight hits the solar panels, it is a combination of several solar cells that creates an
electric field.
2. The electricity generated flows to the edge of the panel, and into a conductive wire.
3. The conductive wire brings the electricity to the inverter, where it is transformed from
DC electricity to AC, which is used to power buildings.
4. Another wire transports the AC electricity from the inverter to the electric panel on the
property (also called a breaker box), which distributes the electricity throughout the
building as needed.
5. Any electricity not needed upon generation flows through the utility meter and into the
utility electrical grid. As the electricity flows through the meter, it causes the meter to run
backwards, crediting your property for excess generation.
6. Solar Energy Advantages
Environment friendly
● Solar Energy is clean, renewable (unlike gas, oil and coal), sustainable
and helping to protect our environment.
● As we see previously ,it does no pollute air.
● Therefore Solar Energy does not contribute to global warming, acid
rain or smog. It actively contributes to the decrease of harmful
greenhouse gas emissions.
● It's not affected by the supply and demand of fuel and is therefore not
subjected to the ever-increasing price of gasoline.
7. Solar Energy Advantages
Low/ no maintenance.
● Once installed, there are no recurring costs. They operate silently, have no
moving parts, do not release offensive smells and do not require you to add
any fuel. More solar panels can easily be added in the future.
Saves you money
● After the initial investment has been recovered, the energy from the sun is
practically FREE.
8. Disadvantage of Solar Energy
● The initial cost is the main disadvantage of installing a solar energy
system, largely because of the high cost of the semi-conducting materials
used in building one.
● Solar panels require quite a large area for installation to achieve a good
level of efficiency.
● The efficiency of the system also relies on the location of the sun,
although this problem can be overcome with the installation of certain
components. The production of solar energy is influenced by the presence
of clouds or pollution in the air. Similarly, no solar energy will be produced
during nighttime although a battery backup system and/or net metering
will solve this problem.
9. World largest Solar Power Project
Bhadla Solar Park
● This is the largest solar power plant in the
world, is based in Bhadla village, in India’s
Rajasthan’s Jodhpur district – a region
known for its solar-friendly high temperatures.
● The power plant was commissioned in March
2020 with an installed capacity of 2.25GW
and it spans 14,000 acres
10. PRACTICAL APPLICATIONS OF SOLAR ENERGY
Solar Powered Auto Rickshaw NASA designed Solar powered aircraft - HELIOS
12. FINAL VERDICT
A 1-kilowatt home solar system will prevent approximately 170 lbs.
of coal from being burned, 300 lbs of CO2 from being released into the
atmosphere and 105 gallons of water from being consumed each
month!
13. Can solar do it all?
No!
But it can do muchmore
than it does now.
Old people didn't know
about it.
It is the time for us to
promote it.
