Since you want to install a higher system voltage for commercial rooftops, the high system voltage can degrade poor quality solar panels through the PID phenomenon.
PID happens when the high potential difference, between solar cells and the grounded aluminium frame, begin to degrade the solar cells due to unwanted charge carrier movements.
WINAICO’s solar modules are tested at 1000 V in 85°C, 85% humidity conditions and exhibit less than 5% power degradation as proof of anti-PID.
This means WINAICO solar panels can be connected in long strings without being damaged by the high voltage, making your solar installation produce more energy for longer.