Solar panel glass in Thanjavur Sri Saravanas Agencies The glass used in solar panels, specifically on the front surface of the module, is a critical component that significantly impacts the panel's performance, durability, and lifespan. It's not just any ordinary glass; it's highly specialized and engineered for the demanding outdoor environment. The solar panel glass is a high-tech marvel that acts as both the transparent window to capture sunlight and the robust shield to protect the heart of the solar panel, directly contributing to its long-term reliability and power output.