Solar Energy: The Real Facts

Fossil fuel has been used as an energy source as long as man has actually learned to create power. Fossil fuel has actually been around for ages and when man started using this energy source no one thought about the repercussions. Fossil fuels are more terrifying, and the requirement for fossil fuels will still be here and will not reduce in the near future.

Alternative energy sources are growing in interest. Other areas with high wind speeds make use of powerful windmills that can transform wind power into electricity.

Solar power is likewise among the energy sources that are acquiring interest. Solar power has actually progressively been growing. Today solar energy is commonly utilized in the United States and the benefits are various. Our solar energy source, the sun, life span is estimated to be another 4.5 billion years. It is fair to state that this energy source is practically unlimited.

Rate of Energy from the Sun

The sun’s radiation reaches a certain unit of location in an area in the region of the Earth’s orbit and is approximated to be at 1,400 watts per square meter. Out of this, photovoltaic cells (also referred to as solar cells) can catch 19 to 56 watts per square meter (for 15% efficiency) or an equivalent of 0.45 to 1.35 kilowatt per hour (kWh) in a yearly day and night average.

If there would be more locations that will be covered by numerous solar panels, these panels can produce slightly more energy in the form of electrical power than what is currently available from oil, gas, and other sources of energy integrated (assuming 8% solar cell effectiveness).

Conversion of Solar Energy

There are 2 methods of conversion of solar power. First is direct solar energy which includes just one conversion into a functional kind. :

  • Sunlight strikes the solar battery, converting it into electrical energy.
  • Sunlight strikes the absorber surface of a solar thermal collector, transforming it into thermal energy which can be used to heat homes during winter.

The 2nd is indirect solar energy which includes more than one conversion to reach a usable form. For example:

  • Plants use photosynthesis to change solar energy to chemical energy, which can be burned later as fuel to create electrical energy (also referred to as bio-fuel technology).
  • Hydroelectric dams and wind turbines are indirectly supplied by solar power through their interaction with the Earth’s environment.

Advantages and disadvantages of Solar Energy

Much like any other kind of energy resource, solar power has its outs and ins.


  • Pollution-free.
  • Solar facilities can be kept up with little additional input or upkeep.
  • It is abundant. As pointed out earlier, most of the inhabited areas here on Earth can be reached by sunshine.


  • Although it is abundant, non-tropical locations can get little sunlight. Therefore, the power that will be produced in these places is minimum.
  • Only throughout daytime therefore not offered during night time.
  • Photovoltaic cell innovations create direct present (DC) power which requires to be transformed to rotating current (AC) power used in circulation grids.

As soon as massive advancement of using solar energy is materialized, anticipate that every household or market in the world will now be powered by solar power. It is not simply a dream, it will be a dream that becomes a reality.

Solar energy is likewise one of the energy sources that is getting in interest. Today solar energy is commonly utilized in the United States and the advantages are various. Our solar energy source, the sun, life span is estimated to be another 4.5 billion years. There are two ways of conversion of solar energy. Is direct solar energy includes just one conversion into a functional type?

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