Solar Panels

There are many different types of solar panels on the market. The most common species is the polycrystalline (so-called. Blue panel). The biggest difference between the panels, the yield and the quality.

All panels are made of solar cells. The solar cell is the heart of the solar system. As a (sun) light is incident in the cell, there is a particle of light (photon) are energy to a negatively charged particle (electron) from the material of the solar cell, which therefore becomes loose and will move freely. A material disposed in the electric field attracts the electrons to the front side of the solar cell. The electrons leave a positively charged material having empty spaces (holes) behind. The back side of the solar cell is thus positively charged. When & nbsp; the front and back of the solar cell from the outside are connected to each other, is going to run an electric current. Thus the cell provides energy.

The capacity of solar module is expressed in Watt peak. A Watt peak is the electrical power provides a solar cell under standard test conditions: irradiance of 1000W / m2 (a bright blue sky in June) and a cell temperature of 25 degrees Celsius. Under these conditions, a solar cell of 1 Watt peak power of 1 Watt. Because this power is not achieved under normal conditions (with less cloud cover (sun) light), the Watt peak is used as a comparison of yields from solar panels. In practice, the power output of a solar panel is approximately 88%. 


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