The reason that solar energy is the best source of renewable energy.
We have three reasons.
First, we need panels for using solar energy. We can establish it anywhere to watch from satellite. In other words, the panels don't choose the location. And therefore, we can establish it where needed.
Second, when the maximum power generation is noon. Noon is the time that people need the maximum energy power. So, its supply and our demand match.
Third, solar energy is enormous. It is estimated 50 times the world energy consumption only amount available.
So, we think solar energy is the best source in the above reasons.
What are the advantages and disadvantages of solar energy?
We can only think of one disadvantage to using solar energy. The only one would be the upfront cost. However, once you install it, you will no longer have that big electric bill to pay to the electric company. Take note that the system has a life span of 40 years, which may also be a disadvantage.
There are several advantages. First, it’s free. You have to pay the upfront cost for the panels and to have it installed, but after that, it is free.Second,we can get energy when the light goes out.Third,we can establish it wherever you want.
How does solar energy? (What machines and mechanisms are used?)
The photovoltaic power generation absorbs energy of the solar light and changes it into electrical energy.
The light of the sun of the noon of the midsummer has energy of approximately 1kW per 1 square meter.
For example, an asphalt road on solar light becomes hot.
The conversion from light to electricity is carried out directly and momentarily. Therefore, It generates electricity only when light is successful (like a general "battery", there is not the function to accumulate electricity).
But, on the other hand, it doesn’t need to use steam and a chemical reaction and the rotary motion.
It doesn’t use the fuel and does not take out exhaust gas and burning refuse.
If I express it with a word, a solar battery is “the thing which changes energy of the light into electricity with a semiconductor directly".
When did countries start using wind energy.
In 1954,solar battery used for solar power was invented by three researchers.Pearson,Fuller,and Shapin in the research facility of Bell Telephone Laboratories of the Unites States.Wasinventedat this timeis thesilicon solar battery.
It was invented as a by-productin the research process of the transistor.
That is,it was not always was intended to develop a solar battery from the beginning.Solar battery has a logical basis, the photovoltaic effect that generate electricity.
For this photovoltaic effect, and have been found and in 1839 it is much more than before 1954 invention of solar battery.
In fact the world's first solar battery to have been put to practical use, it was a satellite.
It was the power supply unit when the solar battery is most suitable in space that can not be externally supplied power.
It is used like...
Retvieved from...
http://unit.aist.go.jp/rcpvt/ci/about_pv/principle/principle_1.html
http://solarsystem-history.com/
http://en.wikipedia.org/wiki/Solar_power