Advantages of 0BB Over SMBB Higher Power Output: The absence of busbars reduces shading on the cell surface, allowing more sunlight to reach the active area and generate more electricity. Shorter current paths reduce resistive losses, boosting overall power conversion efficiency. For instance, Aiko Solar reported that integrating 0BB with its ABC (All Back Contact) cells increased power output by up to 5W per module. Lower Manufacturing Costs: Traditional busbars are made using silver paste, a costly material whose price has surged by over 30% since October 2023. Silver accounts for about 35% of the non-silicon costs in solar cells. By eliminating busbars, 0BB technology can significantly reduce silver consumption — by as much as 20-40%, depending on the cell type. This cost reduction is particularly impactful for HJT (Heterojunction Technology), where silver usage is highest. According to industry estimates, using 0BB can lower the cost by 0.01-0.06 CNY/W, depending on the
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