2. SUSTAINABLE ENERGY
• Sustainable energy, also known as renewable energy, focuses on
reducing the negative impact humans have on nature by obtaining
energy from polluting and exhaustible sources. This type of energy,
in contrast to non-renewable energy, is obtained from inexhaustible
natural sources such as air, water and sun, among others.
3. SUSTAINABLE ENERGY SOURCES
N O N -
C O N T A M I N A T I N G
Within clean energy we include the following:
• Solar energy. To obtain this type of energy, the solar radiation is used for the
purpose of generating electric or thermal energy by using different
technologies to take advantage of it in various processes. Some of these
technological inventions used to take advantage of it are solar panels and
thermal collectors, among others.
• The Eolic energy. Kinetic energy is exploited from the wind force and this is
transformed into:
• Electric power, which can be useful for the human being in his daily life. It is
converted into electricity by wind turbines, which are connected to a generator
that produces electricity.
4. • In mechanical energy to help people carry out heavy tasks, such as grinding
grain, moving sailboats or even extracting water from wells.
• Hydraulic power. It is stored in the streams of rivers and prey. It is obtained
from the kinetic and potential energy of the water stream or tides: water at
high speed (either by current or because it is falling from high altitude) moves
turbines that are connected to generators, which produce electricity with
movement Of the turbines.
• The tidal power. It is the energy that is obtained from the tides of seas and
oceans.
• Geothermal energy. This type of energy is obtained from the use of the heat
generated in the interior of the earth, which is manifested in volcanoes and
geysers. The water vapor generated by the heat of the Earth passes through
a turbine that is connected to a generator, which produces electricity with the
movement of the turbine.
• The nuclear. When using Hydrogen, instead of Uranium, in the process of
nuclear fission to generate electricity yes is considered renewable.
5. CONTAMINANTS
Among the polluting energies are those obtained from biomass and used as fuel
if converted into bioethanol or biogas, as well as urban waste.
• Biomass is organic matter that originates in biological processes, both
spontaneous and provoked, serving as a source of energy. It is obtained by
burning organic matter such as wood, fruit peels and plants. Energy is
released because plants through photosynthesis capture and store the
energy of the Sun, so that when they are burned, they release it. Although it
is a sustainable energy source, it has two major disadvantages:
• The first is that the amount of energy obtained depends directly on the
amount of agricultural waste generated, so it is likely to be exhausted at some
point or the supply irregular.
6. • As the essential part of its process is combustion, it releases carbon dioxide
(CO2) into the atmosphere. This is a polluting gas that contributes
significantly to the greenhouse effect, to global warming and consequently to
climate change.
• If it becomes a fuel then it will release even more carbon dioxide into the
atmosphere.
• Urban waste. It is also possible to obtain energy by means of urban waste.
This energy would be more polluting if it was not used, since to carry out its
rot process natural gas is used, which contributes to the emission of carbon
dioxide.
7. The contamination of our planet, which has grown in an excessive way since the
last century, has caused many of the resources to begin to become scarce or
even exhausted. Not only does this endanger our ability to carry out many of
the activities we do on a daily basis (such as transporting us in fossil fuel
vehicles), it has put many species at risk of extinction and completely
eradicated from others.
Sustainable energy makes it possible to take advantage of renewable or
inexhaustible resources as much as desired without damaging ecosystems or
the atmosphere in the way it was being done. In addition, they have the
potential to meet our energy needs both now and in the future, unlike non-
renewable energy sources that will eventually be depleted.
8. Sustainable energy seeks to produce energy without compromising resources for
future generations and without affecting our environment. Also, one of the
main benefits is that it can lead to communities where the electricity
distribution network does not reach, making electricity available to these
communities, either by using solar or other energy.
