What kind of energy

Energy sources
control dam between the lake and the river. And in the one outlet of the
dam they build a turbine. This turbine activates a generator and the water
What is anenergy
energy-source,
is transformed
which into
kinds
electric
of energy
energy.
are there
Moreand
information
why are energy
about
sources soalternative
important?energy
At thiscan
place
be you
found
learn
in the
about
article
sources
aboutof energy.
green energy
.
What are the pros and cons of different sources of energy?

The three
•
What
different
are kinds
sources
of of
energy-sources
energy and where
have are
theirthey
ownused
prosfor?
and cons. In this
part we
• give
Which
a fewdifferent
of them.sources of energy do we know?
•
What arepower
Nuclear
the pros and cons of different sources of energy?
For the generation of nuclear power little raw material is needed to
What aregenerate
sources aoflot
energy
of electric
and where
energy.are

This
they
is an
used
advantage,
for? because the supply
An energyofsource
the raw
is amaterial
system will
which
be makes
enoughenergy
for quite
in aacertain
time. Away,
veryfor
biginstance a
hydro-electric
disadvantage
station. Aishydro-electric
that the raw material
station uses
for nuclear
the current
power,
of the
uranium,
river for
is very

the
making ofradio-active.
electricity. Also the used rods en other used materials stay radio-ac tive
Nowadaysfor
weages.
needatenergy-sources
a nuclear power
forplant
electricity.
as Tsjernobyl
Withoutwe
electricity
have seen
nohow
computers,dangerous
no television,
this type
no washers.
of energy-generation
A lot of apparatus
can be.
would
Thisnot
is the
work
major
without
reason
electricity.why environmental groups (like Greenpeace) are against this form of
energy-winning.

Which different sources of energy do we know?
How •manyFossil
energy-sources
energy do we know, below are the most important sources.
•
Nuclear
The
big advantage
power of fossil energy is that, to generate the energy from the
Nuclear
raw
material
power
is is
easy
a form
and cheap.
of energy
Disadvantage
which ariseisfrom
that aduring
reaction
thebetween
process of
atomic nucleï.
combustion
a lot
Mostly
of toxic
thismaterials

form of energy
comes comes
into theout
airof
which
nuclear
causes
fis sion.
extraTo
explain how
pollution
of the
thisatmos
process
phere,
works,
these
wematerials
give a little
alsoexplanation
increase theabout
effecttheof
structure
global
warming
of atomic nucleï.
. Another
Atomic
disadvantage
nucleï excist

of fossil
out ofenergy
neutrons
is that
andthe supply of
protons.
fossil
fuels
these
is not
little
endless.
parts (neutrons
The current
andsupply
protons)
is for
areapproximately
held together in50the
center That
years.
of theisatomic
why the
nucleus
USA wants
through
to atrail
special
for oil
energy,

and natural
calledgas
bindingin Alaska.
energy.
If
the USA
I n adoproces
this, there
s in which
are bigthe
consequences
atomic nucleï
forcollide
the environment.
whith eachother,
For
they fall
more
information
apart and about
the loose
this parts
subject,
come
go out
to the
of article
the atomic
about
nucleus. The

exhaustion.
energy which kept the parts together is not nessecary anymore and this
•
energy comesenergy
Alternative
'free'. At the technique of nuclear fission, atomic nucleï
collide
The
advantage
with eachother
of alternative
in a central
energy
boiler
is that
to the
become
energy
as source
much energy
is endless
out of
it as doesn't
and
possible.
give
The
any
so pollution.
called 'binding-energy'

Still, there arefalls
not many
apart and
alternative
this energy
energy
comes out
forms,
because
of thefor
atomic
instance
nucleus.
the technique
This energy
to transform
is used for
sun-beams
heating up
into
water
and this energy
electric
water becomes
is very expensive.
steam. Through
For more
the information
steam a turbine
about

canalternative
be driven
and soof
forms
electricity
energy-winning,
is a fact. go
Thetospeed
the article
in which
aboutthe atomic nucleï collide
greenisenergy
controlled by s pecial rods. These rods can pull atomic nucleï towards them
and so the there becomes less nucleï, which can collide and then there is
less binding-energy to come 'free'.
•

Fossil energy
Fossil energy is generated through the burning of fossil remains. At this
burning the fossil fuel is used as a source of heat to make steam out of
water. This steam is used for the working of a turbine. With the help of a
generator, this turbine can m ake electricity. Examples of fossil fuels are
oil, natural gas and c oal. These fossil fuels are remains of dead materials
of plants and animals. These plants and animals died over a million years
ago and under the pressure of the earth's surface and through the decay
of this material their came a process of compress ion. Carbon is the main
part of these fossile fuels, the more carbon, the heavier the fuel.

•

Alternative energy
Alternative
energy
a electric
form
ofdelivers
energy
without
waste-matters.
Itand
is these
also
ais
form
alternative
forms
used
station
for
where
of
makes
the
alternative
energy-sources
the
making
use
source,
ofisenergy,

of
the
which
fallare
excisting
between
sun-,
energy.
wateraenergy
the
lake
Forenergy,
and
instance,
and
(like
windenergy.
a river.
water,
is aendless.
hydro-electric
They
wind
By
Some
build
al
sun)
a flood