Stripes

White stripes on the back of photovoltaic panels

The most common cause of white spots is moisture seeping into the module laminate. A solar module is built like a sandwich, with the solar cells and encapsulant sealed between glass and a backsheet. The edge seal is the first line of defense against the elements. They might seem like a minor cosmetic issue, but these „white spots“ are often the first visible signs of a deeper problem that can compromise a module's performance. . If you've noticed mysterious white spots on your photovoltaic (PV) panels, you're not alone. These spots aren't just cosmetic – they could be. . Solar panels are a crucial component of renewable energy systems, converting sunlight into electricity. It will keep your system running at its best. It can affect its appearance and performance.