Single solar cells cannot be directly used as power sources. As a power supply, several single battery strings, parallel connections and tightly packaged components must be made. Solar panels (also called solar cell modules) are the core part of the solar power generation system and the most important part of the solar power generation system.

• Power generation principle:

• Sunlight shines on the p-n junction of the semiconductor to form a new hole-electron pair. Under the action of p-n junction electric field, holes flow from Zone N to Zone P, electrons flow from zone p to Zone N, and current is formed after processing circuit. This is the working principle of photoelectric effect solar cells.

  Solar power generation mode there are two ways of solar power generation, one is light-heat-electricity conversion mode, the other is light-electricity direct conversion mode.

  (1) the light-heat-electricity conversion mode generates electricity by using the thermal energy generated by solar radiation. Generally, the solar collector converts the absorbed thermal energy into the steam of the working medium, and then drives the steam turbine to generate electricity. The former process is the light-heat conversion process; The latter process is the heat-electricity conversion process.

• (2) light-electricity direct conversion method is to use photoelectric effect, the solar radiation energy is directly converted into electric energy, and the basic device of light-electricity conversion is solar cell. Solar cell is a device that directly converts solar energy into electric energy due to photovoltaic effect. It is a semiconductor photodiode. When sunlight shines on photodiode, photodiode will turn the light energy of the sun into electric energy, generating electric current. When many batteries are connected in series or in parallel, they can become solar cell arrays with relatively large output power.

  
  

  
  

• • Solar panel Category
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  • 1) monocrystalline silicon solar panel

  • the photoelectric conversion efficiency of monocrystalline silicon solar panels is about 15%, with the highest reaching 24%. This is the highest photoelectric conversion rate among all kinds of solar panels, but the manufacturing cost is very large, so that it cannot be widely used in large quantities and everywhere. Single crystal silicon is usually encapsulated by tempered glass and waterproof resin, so it is durable and has a service life of 15 years and a maximum of 25 years.

  • 2) polycrystalline silicon solar panels

  • the manufacturing process of polycrystalline silicon solar panel is similar to that of monocrystalline silicon solar panel, but the photoelectric conversion efficiency of polycrystalline silicon solar panel is much lower, and its power generation conversion efficiency is about 12%. In terms of manufacturing cost, it is cheaper than monocrystalline silicon solar panels, the material is easy to manufacture, the power consumption is saved, and the total production cost is relatively low, so it has been greatly developed. In addition, the service life of polycrystalline silicon solar panels is shorter than that of monocrystalline silicon solar panels. In terms of performance-price ratio, monocrystalline silicon solar panels are slightly better.

  • Solar panel characteristics

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  ★ The outer layer of solar glass laminate is protected by high transparent glass.(GLASS) packaging; High gloss, UV aging resistance, beautiful appearance, and long service life5-20 more than years.

  ★The material is made of polycrystalline silicon and monocrystalline silicon solar battery piece, with high conversion efficiency, good weak light and stable output performance;

  ★The glass on the surface of the solar panel can be tempered or semi-tempered, which can resist deformation at high temperature.

  ★On the premise of ensuring that parameters such as work current and working voltage strictly meet the customer's requirements, strictly check the product appearance to improve customer satisfaction;

  ★Solar glass pane electrical performance parameters, size, thickness, etc. can be imported according to customer requirements line customization.

  
  
  
  

  
  

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