To know how solar energy is converted into a form of power that can be
used, we should first know how this solar energy is produced.
is Solar Energy Produced - Its Origin
Sunlight is emitted from the sun, travels across the distance between
the sun and the earth, and then passes through the upper sections of
the earth's atmosphere.
The sunlight penetrates many layers of the atmosphere before it reaches
the surface of earth.
When it reaches the surface of the earth, it is in the form of infrared
It is this radiation that is used by plants as chemical energy in the
form of photosynthesis. We use it in the form of heat energy.
is Solar Energy Produced - How We Use Solar Energy Today
When the sun rays reaches the surface area of the earth, they can be
harnessed so that the radiation can be transformed into a useful energy
resource. At the earth's surface, the useful radiation is generally
known as infrared rays
Once it arrives at the earth's surface, the use of solar energy by man
is mainly divided into two areas:
To produce electricity
To produce heat
is Solar Energy Produced - How to Use Solar Energy to
Produce "Solar Energy Electricity"
In the most common technique for production of electrical solar power,
the radiation of solar energy from the sun is harnessed by
means of arrays (linked groups) of photovoltaic (PV) or solar cells.
When harnessed, most of the sunlight striking is absorbed into these
photovoltaic/solar cells. The photovoltaic/solar cells are subsequently
utilized in order to transform the sun's energy into electricity.
These kinds of solar cells are non-mechanical units which are usually
built using silicon alloys. Many cells can be linked together to form
solar arrays which then are mounted on solar panels.
The vast majority of electrical solar panels appear as black flat cases
containing arrays of PV cells that are mounted on the roofs
of buildings. These photovoltaic cell arrays are also commonly
mounted on stands in areas where they receive the maximum sunlight..
is Solar Energy Produced - Solar Water Heat Production
Heating water with solar energy is done with two objectives in mind.
Hot water used directly for bathing, etc.
Hot water or another liquid used to heat air
Using Solar Energy To Produce Hot Water
In a typical design of a collector that uses heat from the sun to
produce hot water for direct use, the water can run through a pipe
directly to the outlet. Or another liquid can be heated and the heat
transferred to the water pipes.
Using Solar Energy To Heat Air Space
By the same token, the hot liquid or water when run through a radiator
will heat up the surrounding air and can be used to heat a house or a
and Advantages of Solar Energy/Solar Power
The climate and the location determine how effectively this
solar energy for electricity or heat can be captured.
One of the most important advantages of solar energy is
that sunlight is abundantly available for us.
There is no need for bulky equipment to store the power.
The cells are mounted on the rooftops, factories and other types of
buildings to generate electricity.
An outstanding feature of solar power is that it has little
negative environmental impact on the planet.
The amount of sunlight that reaches the cell decides the
amount of power the cell generates. This varies depending on the
climate, location and other factors.
Solar energy is free and the supplies are unlimited. Only
an initial investment is needed for the solar cells, panels, or arrays
and the electrical equipment and parts for installation.
When it comes to producing electricity, solar energy helps to
ameliorate the reliance on fossil fuels by many countries.