Freephone: 0800 1114 805

Freephone: 0800 1114 805

SunTech Ultra S Series


Large format 166 mm silicon wafer with module efficiency up to 20.6%.

Based on 166 mm large format silicon wafer and new generation PERC cells, the optional bifacial double-glass or transparent back sheet.

The combination of half-cell, multi-busbar and bifacial technology redefines the high conversion efficiency.

With multi-busbar technology, the current transverse propagation path decreases by 50%, reduces resistance loss effectively, meanwhile, the short distance between the busbars allows the better collection of the electrons and therefore better yield.

Suntech’s non-destructive cutting technology can reduce linear loss of the module. ​The half cell technology decreases the average operating temperature of the cell and modules and therefor increase the energy output of the photovoltaic system.

The backside generates the electricity up to 25%*, it effectively absorbs the incident light in the positive side and reflected and scattered light in the back side, outputs enough power, the theoretical power can reach up to 600 W.​

Bifacial products from Suntech can be installed on fixed mounting systems or on mounting system that follow the sun (tracker). In both cased it will decrease LCOE effectively. It is also compatible with transparent back sheet; its weight is the same as the module of the same specification.