Facts about solar energy -
"Encouraging Facts About Solar Energy"
The Earth's First Energy
A fact about solar energy is that the Earth's first energy was solar
energy;
another fact about solar energy is humans have been using solar energy
to make
our lives easier. People have used solar energy to dry food and bricks
nearly
as long as humans have started building cities.
In more recent times, humans have made solar cook boxes as early as 1830
for cooking while camping; and more recently, in the 1950's people
created
photovoltaic cells for collecting solar energy and turning it into
electricity.
Progress In Solar Technology
A commonly known fact about solar energy is that the collection is not
terribly
efficient, only able to collect about 10% of the energy they are
subjected to;
today solar cells or photovoltaic cells are able to collect more like
20% of
the energy they are subjected to.
Another fact about solar energy is that the cells are only able to
collect
the energy for electricity in full or part; the sun, clouds, mist, and
fog
will limit or diminish the solar cell's ability to absorb solar energy.
A new fact about solar energy is that scientists are working towards
making
new solar cells which are able to absorb UV or ultra-violet rays from
the sun
and convert those into energy; these will create even more electricity
because, even though the sun is not shining, UV rays are always able to
penetrate to the solar cells.
The Make Up Of A Solar Cell
Solar cells are made of silicone alloy and are charged with photons and
electrons to aid in the transfer of solar radiation to electricity. The
cells are often small, only about 4 inches long, and are often tiled
into
weather proof blocks allowing more electricity to be made as more
sunlight
can be converted.
Solar Energy Is Part Of The Solution
With the world's high demand for electricity, more and more coal burning
power plants spring up every day; which in turn causes more pollution.
The fact about solar energy is that it is a renewable and clean source
of
energy, and if it is used in combination with other forms of clean
energy
such as wind power, it can completely fuel a home or, on a large scale,
an
entire city or metro area.
Many states give rebates, grants, and tax deductions to encourage people
to
convert their homes to clean energy; in addition to reducing the home
owner's
monthly bills, a fact about solar energy is that using it in place of
the
utility company's energy will reduce the overall amount of pollution
released
into the atmosphere.
By: Scott Soloff |
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