PV cover glass

Every module relies on its cover glass to block UV light, withstand hail, and let sunlight through. But even glass labeled the same way — "ultra-clear, patterned, tempered, AR-coated" — can differ by a wide margin in the yield and outdoor service life that different manufacturers actually deliver. That difference is rarely written in the specification sheet; it is hidden in the control of every single step of the manufacturing process.   For module manufacturers and procurement...