While the silicon solar cells themselves are delicate, the complete panel assembly is specifically designed to be highly durable and withstand decades of outdoor environmental stress. This perception, however, does not accurately reflect the engineering behind modern photovoltaic modules. Vulnerable materials, including glass and silicon, which may not withstand extreme impacts, 2. . This blog explores the construction of solar panels, their resistance to harsh weather conditions, common misconceptions about their fragility, and factors influencing their overall durability. Solar panels may be fragile, but. Solar panels are indeed very fragile, about a few millimeters thick.