One. Will the solar panel discolor?
Yes.
Solar panels are prone to becoming brittle, yellowing, and aging over time, which leads to a decrease in their light transmission rate and unsightly appearance.
Two. What are the causes of yellowing of solar panels?
1、Raw materials: Inexpensive PC solar panels utilize recycled materials, which naturally tend to yellow and discolor over time.
2、Coating Process: High-quality solar panels are less prone to yellowing and discoloration because the manufacturer applies a UV coating during the production process. Without this coating, solar panels are more likely to yellow and discolor quickly.
3. Installation Method: Most PC solar panels available on the market are single-sided UV-resistant products. This requires users to apply the UV-resistant coating on the side facing the sun. Otherwise, the PC solar panel will lose the protection of the UV-resistant coating, allowing UV rays to penetrate, causing rapid aging and yellowing, significantly reducing its lifespan and affecting light transmittance.
Three. What to do about discoloration of solar panels?
If solar panels exhibit yellowing, discoloration, or brittleness, it is recommended to replace them directly. Yellowed and discolored products are not only aesthetically unappealing and difficult to repair, but they also lose their UV protection function, posing a significant safety hazard if continued use.
IV. How to prevent the yellowing of solar panels
1、Apply a protective coating: The solar panel undergoes a special processing to apply a UV coating, which can prevent aging and yellowing, as well as provide protection against dripping and UV radiation.
2、Pay attention to installation: If the single-sided UV glass panel is accidentally installed with the UV coating side facing upwards during installation, it will easily become aged and discolored. Therefore, it is essential to clearly identify the front and back of the glass panel during installation, or to seek the assistance of a qualified professional for installation.