Silicon Module Super League member, JA Solar are in the process of moving their entire PV module portfolio to the most recent 5 busbar technology. What are busbars Busbars are metalised thin strips printed on the front and back of the solar PV cell. Their purpose is to conduct electricity generated by solar cells and … Continue reading JA Solar modules are changing 4 busbars (4BB) to 5 busbars (5BB) technology