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What is a double sided glass solar panel? What are the advantages?

The difference between Double sided solar panel and Single sided

What is a double sided solar panels?

As the name suggests, it refers to a photovoltaic cell module formed by two pieces of glass and solar cells composed of a composite layer, and the cells are connected in series and connected in parallel to the lead ends. In recent years, double sided glass solar panel are like riding on a rocket, and the popularity is soaring. Why are they so popular?

What are the advantages of double sided solar panel?

1. The warranty for ordinary solar panel is 25 years, and the warranty for double-glass photovoltaic solar panel is 30 years.

2. It has a higher life cycle power generation, which is 21% higher than ordinary components.

3. The abrasion resistance of the glass is very good, which also solves the problem of wind and sand resistance of the components in the field. Where there is heavy wind and sand, the wear resistance of double-glass components is obvious.

4. The insulation of the glass is better than that of the backplane, which enables the double-glass module to meet higher system voltage, so as to save the system cost of the entire power station.

5. The attenuation of traditional solar panels is about 0.7%, and the attenuation of double glass solar panel is 0.5%.

6. The fire rating of double-glass solar panel has been upgraded from C-level to A-level of ordinary crystalline silicon modules, making it more suitable for residential houses, chemical plants and other areas where fire hazards need to be avoided.

7. The water permeability of the glass is almost zero, and there is no need to consider the hydrolysis of the EVA film induced by water vapor entering the module. The back sheet of traditional crystalline silicon solar panel has a certain water permeability. The water vapor of the back sheet makes the inferior EVA resin quickly resolve acetic acid, which leads to electrochemical corrosion inside the module, which increases the occurrence of PID attenuation and snail marks. The probability. It is especially suitable for photovoltaic power plants in seaside, waterside and high humidity areas.

8. Glass is an inorganic substance silica, which is the same substance as sand everywhere, and its weather resistance and corrosion resistance are more than any known plastics. Ultraviolet rays, oxygen, and moisture cause the backplane to gradually degrade, and the surface is chalked and broken by itself. The use of glass will solve the weather resistance problem of the components once and for all, and will also end the dispute over which PVF or PVDF is more weather resistant, not to mention the weather resistance, poor water resistance PET backsheet, coated backsheet and other low-end backsheets. . This feature makes the double glass module suitable for photovoltaic power plants in areas with more acid rain or salt fog.

9. Double sided solar panel do not need aluminum frame, unless there is a lot of dew on the glass surface. Without the aluminum frame, the electric field that causes PID cannot be established, which greatly reduces the possibility of PID attenuation.

10. Scope of application
Double glass solar panel: suitable for photovoltaic power plants in residential houses, chemical plants, seaside, waterside, acid rain or salt fog areas.
Single-glass solar panel: suitable for industrial applications, with relatively high environmental requirements and low water permeability.

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