oWoWhat is Hydroelectricity? oHoHow does it work? oAoAdvantages oDoDisadvantages oEoExamples and...
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HYDROELECTRICITY Pollution Busters
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Transcript of oWoWhat is Hydroelectricity? oHoHow does it work? oAoAdvantages oDoDisadvantages oEoExamples and...
HYDROELECTRICITY
Pollution Busters
CONTENTSo What is Hydroelectricity? o How does it work?o Advantageso Disadvantageso Examples and Pictureso Future- for this renewable energyo Factso Online Quizo Quiz have you been listening?o Question Time
WHAT IS HYDROELECTRICITY? The name Hydroelectricity comes
from the Greek word ‘hydro ’that means water.
When we use the energy in flowing water to produce electricity, we call it hydroelectricity.
Hydroelectricity makes a major contribution to the worlds energy supplies- more than any other kind of renewable resources
HOW DOES IT WORK? There are two main ways of using
the energy in flowing water to produce electricity.
Hydroelectric dams trap flowing water then release it again under greater pressure.
A river flowing through a valley is blocked by building a large concrete dam.
The valley is flooded by the river, creating a reservoir of water, like a man made lake.
ADVANTAGES Once construction completed, operating costs are very low.
No waste or pollution is produced.
Electricity can be generated constantly, because water can be stored and used when needed.
DISADVANTAGES Dams are very expensive to build.
Hydroelectricity sites are often remote, which leads to higher distribution costs.
Suitable sites for large-scale projects are hard to find.
EXAMPLES AND PICTURES
We think that the future for hydroelectricity is
very bright, but finding a place to manufacture it
could be quite hard during the economical downturn in Ireland.
Hydroelectricity is a very smart idea, and in the future will probably
produce lots of jobs in Ireland.
Future
FACTS One of the best ways to produce
electricity is through moving water.
China generates more hydroelectricity than any other country in the world.
Hydroelectricity is the term referring to electricity generated by hydropower.
Lester Pelton invented hydroelectricity.
The name Hydroelectricity comes from the Greek word “____” that means water.
Dams are very ________to build.
The Aswan dam is in _____.
QUIZ HAV E YOU BEEN LISTENING
THANK YOU FOR WATCHING BYE
Thank you very much for watching are presentation about
Hydroelectricity Hydroelectricity
