Aside from weather damage, solar panels can be damaged by dirt, leaves, twigs, and other debris. These can scratch or break the glass panels and decrease the amount of energy they produce.
Imperfections in solar cells can lead to hot spots, which can cause burn marks or fires. In addition, microcracks in thin solar cells can lead to poor energy production and make them more vulnerable to weather damage.
Yes, damaged panels can be dangerous. Broken panels can release toxic components such as arsenic, lead, silicon, and cadmium. A professional removal process is the safest way to address damaged panels.