China-headquartered Astronergy has announced that it is the first company in the world to start large-scale production of ZBB-TOPCon solar panels. These panels use new designs, materials, and production methods to improve how well they work.Its upgraded TOPCon 5.0 solar cells have achieved over 27% efficiency by enhancing Voc, Isc, fill factor, light capture, and passivation. The modules feature a PAD-point-free and harpoon-free structure that increases light exposure and improves aesthetics. An optimized contact design strengthens ribbon bonding and boosts current collection at cell edges. Manufacturing uses a low-temperature, flux-free lamination process that reduces welding stress, energy consumption, and VOC emissions. Astronergy has applied low-lead ribbons, rectangular wafers, carrier films, and adhesive materials to enhance reliability and performance. The ZBB-TOPCon product line includes large-format modules for utility-scale use and compact formats for distributed solar applications, addressing varied global market needs.