Evidence shows that fires caused by solar equipment are rare, and they only occur if an improper connection or other electrical fire hazard is present. In most circumstances, good system design, product selection, and installation procedures are enough to minimize the risk of fire to the greatest extent possible. These concerns are further addressed by product safety standards, National Electric Code provisions, and inspections that take place prior to solar facility energization.
Another factor that limits solar panel fires is the small portion of materials in the panels that are flammable, which prevents them from self-sustaining a significant fire. The majority of each solar panel is composed of protective glass that makes up over three quarters of the panels’ weight.