If solar panels exhibit low power output, immediate actions must be taken to diagnose and resolve the issue efficiently. Verify the installation angle, 2. Soiling is the #1 culprit: Dirt, dust, and debris accumulation is the most common cause of underperforming solar panels, with potential output reductions of 15-25% in dusty environments, making regular cleaning essential for optimal performance. Inverters fail first: With typical lifespans of 10-15. Besides, the semiconductor material in flexible solar panels is less efficient than the crystalline silicon in rigid solar panels. How to Fix This The only solution to this problem is to opt for a better-quality product. To prevent overheating, using.