Physical damage is the most obvious type of solar panel defect. It usually happens due to external impacts or mechanical stress. Accidental impact during installation or cleaning (tools, ladders, or walking on. Whether due to weather conditions, accidental impact, or manufacturing defects, damaged solar panels can lead to reduced efficiency, safety concerns, and costly repairs. This article explores the consequences of damaging a solar panel, the types of damage that can occur, and the best ways to. Solar panels are designed to last 25–30 years or more, but like any technology exposed to the elements, they can suffer from different types of damage over time. Regularly inspecting your system can help identify potential issues early. Reduced Energy Output: A noticeable drop in energy production might indicate damaged cells or faulty connections.