Sunlight Power | Amazing Sunlight Power

The Amazing Power Of Sunlight
Sunlight has been a source of energy for humankind since the beginning of time. It has
kept the body healthy by providing a much needed Vitamin D to keep the bones healthy
and strong as well as helping things grow. Scientists have long understood the intense
energy that is provided by the sun and, by teaming with engineers, have been able to
turn this into electrical energy.

The development of solar panels was the primary step in serious use of the sun's rays
for energy. One of their first uses was in the satellites that circle the earth. These
panels provide the energy required for them to work surveillance equipment and complete
other functions.

In homes, these were first used to heat swimming pools, and then advanced to hot water
and heat. At the present time many are being used to create electricity as well. This is
still being done in small amounts but it is firmly believed that, in the future, most of
our electricity will come from solar power and landfill gases.

Basically, the conversion of light into an electrical current is through a solar cell,
called a photovoltaic cell (PV). The sun's rays are attracted to these cells, which have
a negative and positive sections. These sections charge negative neutrons which are trapped
in a magnetic field. Wires catch these neutrons and connect them to a circuit which forms the
electric current. This is how sunlight becomes into electrical energy.

Scientists, at the present time, are working on the problem of voltage limitation in the
solid-state solar cells now being used. This is called a band gap or energy gap. Currently
scientists in Spain have achieved what looks like a break through regarding this problem.
They expect to improve this situation to the point where solar energy will be just as good,
if not better, than fossil fuel for producing electricity.

Currently, only the visible light of the sun is being utilized by solar cells, which is only
about 30% of the energy available. This 30% is mainly being used for hot water and heat. Work
is currently being done to capture this invisible, infrared light and turn it into energy,
which will increase the amount of electricity produced. Only a small amount of sunlight energy
is currently being used for electricity, not only because of the lack of conversion ability but
also because of the current expense of home installation of the solar cells needed for this purpose.