Solar Energy

now we are going to talk about solar energy 

solar energy has tow main type :

1- thermal energy 

2- photovoltaics 

photovoltaics

 in this article we are going to show some information about photovoltaics technology 

Before start to explain the photoelectric technology we must know from where the sun got this enormous energy .

inside the sun it happens nuclear fusion interactions produce heat and light energy between the atoms of helium and oxygen .

The amount of light from the sun reach the Earth penetrates the atmosphere and clouds. Some of this energy is refracted and some distracted and some is absorbed by the atmosphere is up to the earth in the form of photons with high kinetic energy .

in this period pv technology was discovered and it is based on converting the kinetic energy of the photons into electrical energy

By using a semiconductor material where photons editing a stream of electrons and move them to the outside of the cell through the conductor material and is this flow of electrons so-called the current .

 types of solar cell :

till now we have three type of solar panel 

1-monocrystalline

2-polycrystalline

3-thin-film 

the most efficient is the monocrystalline but the most used is the polycrystalline because it does not affected by high temperature 

Thank you for your attention

note : in the next article we are going to know the compound of pv-system and the two main types on grid and stand alone systems .