High Efficiency Hetero-Junction: From Pilot Line To Industrial Production

Combination of silicon heterojunction cell technology (SHJ) with bifacial module architecture is an appealing solution for manufactures who are focused on PV system performances. In this paper, we will present a study with an industrial perspective, initiated to address specific challenges of producing SHJ cells and modules in Europe. The impact of incoming wafer quality has been studied by analyzing at full ingot scale the efficiency performances of SHJ cells. The impact of long queue time prior to deposition is also reported. Finally, results of full size modules with 72 cells are presented.