GEOTHERMAL POWER, PPP.

Here's a power-point presentation I did for school about Geothermal power. It was for a lesson where each of our groups had to 'teach' our class about different types of energy; my group chose Geothermal Power. It was only meant to last 7 or so minutes which is why it isn't all that long, but there are two links in it to different sites that have videos that help to 'flesh it out' a bit.

I hope it helps anyone who is doing GCSE Geography and needs to know something about at least one type of renewable/ alternative energy source.

Kathryn. C

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  • Created by: Kathryn.C
  • Created on: 05-04-10 13:06
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WHAT IS IT?
Geothermal power is power that is taken from the earth to
generate electricity.
Geothermal power has been used since Roman times when it
was used to heat the flooring of Roman villas and to heat
water.
Nowadays geothermal power is known as a renewable energy
because it is limitless since it heat generated by the earth
itself.…read more

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HOW DOES IT WORK?
Geothermal power works by channelling the heat, that is
emitted by the earths molten core, and making it heat water
so that it becomes steam so that it can turn a turbine that is
connected to a generator; which will make electricity from
the spinning of the turbine.
Possibly, a pipeline that can channel some of the geothermal
heat will be directed towards homes and buildings so as to
heat them.
http://videos.
howstuffworks.
com/hsw/8169-
electricity-
geothermal-
energy-video.
htm…read more

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WHERE IS IT USED?
Geothermal power is used, mostly, where there is current
tectonic activity because, in theses areas, there is a more
heat being generated.
Examples of places where this type of power is used are;
· Iceland; in Iceland there is a high concentration of volcanoes
and the heat generated by the lava from these volcanoes is
used to make energy as well as heat houses and even
pavements!
http://www.engineering.
com/Videos/VideoPlayer/tabid/4627/VideoId/1397/Geotherm
al-Energy-In-Iceland.aspx…read more

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NESJAVELLIR GEOTHERMAL PLANT
Nasjavellir geothermal plant is located in Iceland and is the
second largest plant in the country. It produces
approximately 120MW of electrical energy, and produces
around 1'800 litres of hot water per second, servicing the hot
water needs of the Greater Reykjavík Area.…read more

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ADVANTAGES
There are several advantages of geothermal energy which are;
· Theoretically an inexhaustible energy source (it will never
run out)
· There is no pollution (it produces no green house gases)
· It is an excellent supplement for other renewable sources (it
can be used when wind power decreases)
· It does not require any structures such as solar panels or
wind-turbines to collect energy (it can be used directly to
heat or produce electricity)
· It is very cheap…read more

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