1. Manufacturing quality
• Materials: High-quality materials can extend the service life of photovoltaic panels. For example, the use of high-quality silicon wafers and packaging materials can improve durability.
• Process: Advanced manufacturing processes can reduce defects and failure rates and improve the reliability and life of photovoltaic panels.

2. Environmental conditions
• Climate: extreme climatic conditions, such as high temperature, low temperature, strong winds, hail, etc., will have an impact on the life of photovoltaic panels. For example, high temperatures can cause the performance of photovoltaic panels to decline, while hail may cause physical damage.
Pollution: Pollutants and dust in the air can reduce the efficiency of photovoltaic panels, and regular cleaning can extend their service life.

3. Installation quality
• Installation Angle and direction: The correct installation Angle and direction can maximize the power generation efficiency of the photovoltaic panel and reduce the loss caused by occlusion and reflection.
• Fixed mode: The firm fixed mode can prevent the photovoltaic panel from being damaged in bad weather such as strong winds.

4.Maintenance
• Regular inspection: Regularly check whether the photovoltaic panel has damage, cracks or other problems, timely maintenance can extend the service life.
• Cleaning: Regularly clean the dust and dirt on the surface of the photovoltaic panel to keep it running efficiently.

5. Warranty period
Manufacturer's Warranty: Most PV panel manufacturers offer a 10 to 25-year performance warranty and a 10 to 12-year product warranty. During these warranties, manufacturers are usually responsible for replacing or repairing defective PV panels.

6. Performance degradation
• Natural decay: The performance of photovoltaic panels will gradually decay over time, but high-quality photovoltaic panels usually have a performance decay rate of 0.5% to 1% per year. This means that after 25 years, the power generation efficiency of photovoltaic panels can still be maintained at about 80% of the initial efficiency.