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ENERGY (Energy sources are natural resources from which we obtain…
ENERGY
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Energy sources are natural resources from which we obtain different forms
of energy that can be transformed for a specific use
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By use in each country
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Non-conventional : alternatie energy sources; in early stages of their technological development; solar and wind power belong to this group
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ELECTRICITY
Electric power plants
Are facilities where primary or secondary energy
is transformed into electricity,
CONVENTIONAL
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NUCLEAR POWER PLANTS
it includes a nuclear fission reactor that produces the
pressurised steam needed to move the turbine rotor.
NON-CONVENTIONAL
GEOTHERMAL POWER PLANTS
These plants use the heat found at deep levels in the earth. This heat
may reach the surface in the form of steam, gases or hot water
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SOLAR POWER PLANTS
These plants use the energy from the sun There are two main types of installations: photo-thermal and photovoltaic power plants.
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Electricity cannot be stored; therefore, it must be transported to
consumption centres. This transport involves several processes:
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Increasing the voltage to 220 000 V or 400 000 V to prevent significant energy loss, due to the Joule effect
Distribution to homes, offices, industries and public facilities. During this stage, the voltage is reduced to 230-400 V.
ENVIRONMENTAL IMPACT
The building and operating of an electrical power plant results in an ecological change in that region.This is due both to the construction of the necessary infrastructure and the waste that this activity generates.
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