Currently, it is widely believed that the average lifespan of crystalline silicon photovoltaic cells is almost 25 to 30 years, and amorphous silicon photovoltaic cells remain more than 15 to 20 years as well. Solar photovoltaic panels in other materials are also recorded to have a useful life of around 20 to 30 years. Actually, there are many factors affecting the lifespan of solar photovoltaic panels as follows.

1. Photovoltaic cell efficiency attenuation

The average efficiency attenuation of crystalline silicon photovoltaic modules is about 0.5-1%

2. Battery unsoldered

Due to the unreasonable spacing design, poor welding quality between solar cells, and the temperature difference between components during the day, the welding strip and the battery have to experience thermal expansion and cold contraction movement every day, which finally leads to the welding strip and the battery strip being weld off, resulting in the scrap of the component.

3. The welding belt of the component broke

The working environment of solar photovoltaic modules is poor, for instance, the great difference in temperature.

4. Hash climates

Wind and snow load should also be taken into consideration for the lifespan of solar photovoltaic panels.

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