Saturday, July 28, 2012
Abundance of renewable energy
By: Noeme Dulay
Most of us already know that there are lots of
renewable energies in this earth. In different countries including Philippines.
But does everyone knoe its abundance here in Philippines? These energies that
give us the ability to do work? These energies that enable us to live our lives
easier everday? But before we inform you about the abundance of renewable energies
in the Philippines, let us first enumerate some different types of renewable
energies. First, we have the solar, bioenergy, hydroelectric power, hydroge,
geothermal and ocean energy
Sun is
one great source of energy. It doesn’t only givesus heat and vitamin D needed
for our body. Sun is the unlimited source of solar energy. And this solar
energy is very useful because it generates electicity which we use for lighting
our school, offices, malls, and most importanly our very own homes. We are very
much abundant in means of source of solar energy, especially that the Philippines
belongs to the tropical countries where rays of the sun are near. All we need
to do is use this energy properly
As well as the solar energy, biomass can
also be used to produce electricity. biomass is the organic matter yhat makes
up the plants. It can also be used for transportation fuels or chemicals. Bioenergy
is the use of biomass for any of these purposes. And as we all know,
Philippines has very good and wide land and good soil for planting tress and
different herbs and plants. Philippines
must be very abundant with this energy but nowadays. Some of the agricultural
lands are converting into industrial lands housing and subdivisions
Hydrogen is also a type of renewable
energy. It is abundant because it can also be found in many organic compounds
as well as water. Hydrogen is considered to be the most abundant element on the
earth. But hydrogen doesn’t occur naturally as a gas. As always, it is combined
with other element, such as oxygen to make water. And once hydrogen is
seperated from other element it is converted into electricity or can be lourned
as a fuels
Sun’s heat also drives the wind, whose
energy is captured with wind turbine. The wind and sun’s heat cause water
evaporate. And when this water vapor turns into rain or snow then flows
downhill into rivers or streams its energy can be captured using hydroelectric
power. And this is used to generate electicity
But not all renewable energy resources come
from the sun. unlike the solar energy and bioenergy, geothermal energy taps the
earth’s internal heat for different uses. It includes the electric power
production and the heating and cooling the buildings. The gravitational pull of
the moon and the sun upon the earth causes the energy of the oceans tides
And lastly the ocean energy. Well in fact
ocean energy comes from a number os sources. In addition to tidal energy. There’s
the energy of the oceans waves, which are driven by both the tides and the
winds. The sun also has a contribution. It warms the surfaces of the ocean more
than the ocean depths, which creats the tempreture a difference that can be
used as an energy sourcr. All these forms of ocean energy can be used to
produced electricity and the Philippines is very important when it comes to
this energy because we all know that Philippines is sorrounded by water
See? Philippines is very abundant to
renewable energy because there are lots of energy resources at the place. But as
you notice, there are still parts ao the country that has no electricity. It is
because the wrong of the energy resouces.
Renewable energy vs. Non-renewable energy
By: Yella Marie Abiva
When we talk about renewable energy it is
the energy that comes from wind, tides, sunlight, geothermal and rain. What about
non-renewable energy and what is the use of these energy? That’s the question
that enters my mind. So let’s find out what is it.
The renewable energy is the energy which
are renewable or naturally replenished. It is about 16% global energy consumption comes from
renewable. New renewable are accounted for another 3%and are growing rapidl. Many
renewable ere large scale, renewable 0technologies also suited in rural and
renote areas, where energy is ancial in human development. The united nations
secretary-general Ki-Moon said that the renewable energy has the ability to
lift a poorest nations to a new level of prosperity. We use electicity in our
daily work. W cook food, we ioning our clothes. The electicity is one example
of renewable energy. It is more-efficient in our lives because it can make our
work easier and more faster
The non-renewable energy which are not
used by sunlight, rain or geothermal. Example of the non-renewable resources a
resources connot be generated, reproduce or use in scale. The example of non
renewable resources are fossil fuel, nuclear power, nuclear fuel, radioactive
and metals. Metals is the prime example of non-renewable resources. Fossil fuels
a natural resources like coal petroleum and natural gas. Nuclear power or
uraniumis used for production of the nuclear weapon to create electricity.
Nuclear fuel produces carbon dioxide
emissions to production and construction. Nuclear decommissioning and
management of the nuclear wants these action can produce carbon emission
contributing significantly to the global warming.
The nuclear fuel and radioactive is used
for the nuclear industry to collecta highly hazardous to the people and wild
life.
The renewable energy and non renewable
energy are beneficial to us. The 2 energy can help us to our daily lives and to
our work. It can help us also to our environment if we take care and use it in
a nice way so that we can save energy.
So be alive, alert, awakeand
enthusiastics to save energy.
Friday, July 27, 2012
Boon or Bane
By:Ma Leeyan Dasmarinas
Did you know that renewable energy is an
energy which comes from our natural resources. Air, wind, fire and water are
the main example of renewable energy that may of us get benefits on it. But did
you know that someof us doesn’t know what it is, some of us doesn’t know how it
is important and some of us doesn’t know how to handle and use it properly.
There
so many advantages and disadvantages of renewablw energy that we must follow in
order to get rid of this. But disadvantages and advantages of renewable energy
is hard o explain, tell, and show it is because of people who doesn’t know of
this, doesn’t how to give importance and give praiority of the renewable energy.
One of the major advantage of renewable
energy is that renewable energy is sustainable and will never run out. We can
use them as much as we can, as long as we require, and as long as we want and
need with no tension or worry at all.since all of them are naturally source we
can use it as far as nature permits us till the time we need, so we will always
have them. Since they are naturally sourced they will mix up with the nature
automatically without affecting anyting. Does renewable energy harmed to the
environment? No!! because unlike regular energy sourced they do not spread out
green house affect or harmed the green house effect that wiil led to any
disasters. Renewable energy sources consist of solar, wind geothermal, and
ocean biomass. The advantage of this is that they are renewable and connot
depleted. They are cleaned energy they don’t poolute the air and don’t
contribute to global warming, green house effect and other calamities may
happen. And more importantly . renewable energy produces little or small amount
of waste procucts sush as carbon dioxide or other chemical pollutants and has
minimal impact or the environment. Renewable energy can also ring economic
local employment or tourism that many people benefits on this. This can help
the community or country attain sustainability, slowly and tradional
generators. These sources need sun, rainfull, and wind to be fully potencial
and in case they are not available the sources cannot work on. The earth stock
of contemporary energy sources is narrowing everyday. One example is when you
are driving newly built cars or motors improved by tecnologies we are also
consuming our last share of fuels. Base on my research our earth may have only
half of century of oil left it is the existing rate of consumption ais
calculated. It is easy to recognized the environmental advantages and renewable
energy but we must also be aware of what happen if we ignore the disadvantages
of this
One of the main disadvantages of
renewable energy is that it is difficult to generate the quantities of the electicity that are as
large as those produced by traditional generators. This has prevented to higher
penetration of clean energy compared to non-renewable sources of energy and
base on my research the disadvantages of renewable energy may be vanished
someday and it will be free to use our
renewale energy
Replacement for Non-Renewable energy
By:Danilo Villaruz
Over the last
three years publicly traded alternativeenergy have been very rolatile with some
2007 returns in excess of 100% some 2008 returns down 90%or more and peak to
through returns again over 100%. In general there are three subsegment of “alternative
energy” investment solar energy, wind energy, and hybrid electic vehicles. Alternative
energy sources which are renewable free and have a lower carbon emission than
what we have how are wind energy, solar energy, geothermal energy and bio
fuels. Each of these four segments involve very different technologies and
investments concern.
For example photovoltaic solar energy based
on semi conductor processing and accordingly, benefits from steep cost
reductions similar to those realized in the microprocessor industry larger
scale higher module efficiency and improving processing technologies. Pv solar
energy perhaps the only energy technology whose electicity generation cost
could be reduce by half or over the next 5 years. Better and more efficient
manufacturing process and new tecnologysush as advanced thin film solar cell is
a good example of that helps to reduced industry cost.
The economics of solar pv electricity are
highly dependent and silicon pricing and even companies whose tecnologies are
based on the materials are impacted by the balance of supply and demand in the
silicon market. In addition because som companies cells on the open market,
this create an irrational pricing environment.
In contrast
, because wind power has been harnesser for over 100 years it undeliying
technology is relatively stable. It economics prices of steel (the largest
componant of a wind turbine) and select composites (used for blades) because
current wind torbines are often in excess of 100 meter high logistics and a
global of competitive advantage. These issues andothers were explored in a
research report by Sanford Bernstein
Wednesday, July 25, 2012
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