Updated: Jun 2
A type of degradation of the PV backsheet, backsheet powdering refers to the formation of minute, powder-like particles on the back of the solar panel.
The backsheet is an important component of the solar panel because it provides protection to the electrical components inside the panel and helps prevent moisture and other environmental contaminants from entering the panel.
Backsheet powdering is considered a defect in the solar panel and can impact the reliability and longevity of the panel. It may occur due to a variety of reasons, such as exposure to extreme temperatures, physical damage, or aging.
In some cases, the powdering may be superficial and have no significant impact on the performance of the panel. However, in other cases, the powdering can be more severe and allow moisture to penetrate the panel, leading to electrical faults or degradation of the panel's performance over time.
Regular inspection of the panel, including the backsheet, is important to ensure that it is functioning properly and to identify and address any issues that may arise.