• About six hundred years back the people of Asia Minor and
Greece had a very crude idea of electricity.
• Next, the American Scientist Benjamin Franklin proved with the
help of a kite that there is electric power in the clouds.
• The lightening is nothing but the discharge of electricity that the
About six hundred years back the people of Asia Minor and Greece had a very
crude idea of electricity.
Next, the American Scientist Benjamin Franklin proved with the help of a kite
that there is electric power in the clouds.
The lightening is nothing but the discharge of electricity that the clouds contain.
transmit power at
high voltage and
with low loss.
Electricity has been
generated at central
stations since 1881.
practical with the
Electricity generation is the process of generating electric power from
sources of electricity.
The fundamental principles of electricity generation were discovered
during the 1820s and early 1830s by the British scientist Michael faraday.
His basic method is still used today: electricity is generated by the
movement of a loop of wire, or disc of copper between the poles of a
The other processes, electricity transmits distribution, and electrical
power storage and recovery using methods are normally carried out by
the electric power industry.
This is made by coal.
Made by speed of water.
Made by fusion.
Made by fossils of dead
Made by solar energy of
Made by speed of wind.
Fossil fuel is a material that can be
burned and that comes from the fossil
remains of animals and plants, such as
Some examples of fossil fuels are coal,
natural gas and petroleum.
This source is currently available and it
is not dependent upon the weather.
Some of the problems of fossil fuel use
are that it causes pollution, it is a non-
renewable resource and it needs to be
mined from the earth.
It is produced by
the wind turning
has been known
Also, in order to be
effective, the wind
speed at a power site
has to be over 12
kilometers per hour.
Finally, this source of
power is costly and
This source of
pollution, and it is
easy to capture in
many parts of the
Solar energy is the energy
that comes from the sun.
We capture solar energy
through solar panels. This
energy produces no
pollution; also it doesn’t
equivalent of 22
million barrels of
oil of solar energy
hits the United
States alone per
This might sound like the
perfect energy but it is
costly and besides, you
can’t be sure that the sun
will shine brightly without
cloud cover everywhere in
the country every day.
It is produced when
water falls from a
high place to a low
The turbine drives
the generator. This
form of energy
pollution; in addition,
it does not ruin the
The water still can be
used for other
does not cost any
more than fossil
Another advantage is
that there are a lot
of lakes or rivers
where a dam can be
built to produce
One disadvantage is
that fish, such as
salmon, can not
climb over the dam,
so the dam changes
It is made by fusion .It is produced in the reactor of a nuclear power
station. The energy turns water into steam, which drives a turbine that
powers a generator.
This energy, unlike other sources, produces lots of radioactive
It produces lots of energy and can be made to power major cities.
00 : 01
In a conventional thermal power station,
a fuel is used to heat water, which gives
off steam at high pressure. This in turn
drives turbines to create electricity.
At the heart of a power stations is a
generator, a rotating machine that
converts mechanical energy into electrical
energy by creating relative motion
between a magnetic field and a conductor.
The energy source harnessed to turn the
generator varies widely.
During the day when it is brighter outside, open the curtains
and use the sunlight instead of turning on the lights.
Don't windows or doors open when the air conditioning is on.
This makes the AC have to work harder to cool a room.
Turn off the lights when not
Take advantage of daylight
by using light-colored, loose-
weave curtains on your
windows to allow daylight to
penetrate the room. Also,
decorate with lighter colors
that reflect daylight.
De-dust lighting fixtures to
Use electronic chokes in
place of conventional copper