Fracture

Internal fracture of photovoltaic panel

Micro-fractures, also known as micro-cracks, represent a form of solar cell degradation. The silicon used in the solar cells is very thin, and expands and contracts as a result of thermal cycling. But from Texas to Thailand, the same problem is appearing: broken glass. In cases seen by Jörg Althaus, director of. . Dual-glass PV modules are experiencing low-energy glass fracture at an alarming rate under expected conditions of use. Moisture, whether from rain, condensation, or humidity, can infiltrate these cracks and cause corrosion, effectively diminishing the panel's efficiency and effectiveness. . We have seen cases of the glass in solar panels (photovoltaic [PV] modules) breaking differently, and more often, than it did 5 years ago.