Key steps include carefully removing the broken glass, replacing it with solar-grade glass, and ensuring the repair is safe and methodical. How to repair broken solar panel glass depends on the damage, but here are three main DIY methods: Quick Repair Methods: Important: These are temporary fixes that may reduce efficiency. Severe damage requires professional replacement. We'll explore the causes of cracked panels, why repair is crucial, and provide step-by-step instructions for each. A comprehensive guide for repairing and replacing broken solar panels focuses on assessing if a cracked panel still functions. Identify the damage: Inspect the panel for cracks, discoloration, or broken connections, which may affect functionality; 2. The most common type of damage to solar cells is called “cellular degradation.