Investigation on the accident of replacing photovoltaic panels

What causes solar panel re accidents?

According to, approximately 51% of the PV related re accidents is related to installation errors or poor quality of PV modules, which further causes cable faults on PV modules. On the contrary, the hot-spot effect is liable for a relatively lower percentage of the solar panel re accidents.

How to avoid solar PV re accidents?

Existing approaches to avoid solar PV re accidents mainly include preventive actions. The preventive actions include array recombination and detection algorithm research. The studies illustrate the recon guration of PV modules or PV arrays, and the studies intro-duce algorithm to detect the faulty PV modules.

What happens if a solar PV module is damaged?

Hydrogen compounds such as HF and HCL that are toxic are produced during the re accident of solar panels. In 2009, 1826 PV modules with a generation capacity of 383 kW solar PV arrays were damaged in a re accident in California, USA . In the same year, another 15 events of solar PV module related re accidents were reported in Netherlands .

Are solar photovoltaic panels safe?

Solar photovoltaic (PV) panels have been widely applied to harness solar power for its renewable and environment-friendly features. However, the working environment of PV panels is usually not pleasant in practice, leading to fast aging and degradations of power generation, and even suffering from risks of re accidents.