As solar panels are exposed to environmental elements such as UV radiation, temperature fluctuations, and moisture, they undergo a natural aging process. Over time, the materials used in solar cells and modules may degrade, resulting in discoloration. Preventive measures such as using high-quality components, proper installation, regular cleaning and. . Solar panel discoloration is typically the result of long-term exposure to the elements, such as sunlight, rain, and dust. This issue may affect the aesthetic appearance of the panels, but it does not generally impact their functionality or efficiency. However, severe discoloration could. . Preventing cracks is easy when you pick up panels yourself from a warehouse, vertically stacked or wrapped in blankets or foam. It will keep your system running at its best.