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东吴证券-光伏设备行业深度报告：电镀铜即将开启产业化进程，从0到1设备商率先受益-230221

HJT的少银化降本需求迫切，作为去银化“终极”手段的电镀铜更适用于HJT。2022-2023年TOPCon 扩产规模高于HJT，主要系HJT总成本仍偏高，降本为HJT规模扩产的关键，而银浆成本在HJT总成本中占比最高，根据我们的测算，银浆成本占HJT总成本比重约11%，因此降低银浆成本为关键，而电镀铜能够实现去银化，有望解决HJT银浆成本高的痛点，并且从工艺要求和降本效果来看，电镀铜更适用于HJT

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