欧洲光伏产业协会：2025年太阳能生产设备：欧盟太阳能光伏产业生态系统关键参与者报告（英文版）

Silicon metal (Metallurgical grade Si) is used as a raw material to chemically process into polysilicon, which is then melted and crystalised into a silicon ingot. The ingot is sliced into thin silicon wafers, which are then polished, treated, and transformed into solar cells, and these will finally be assembled into a solar PV module. Each stage in the solar PV production process requires specialised machinery (Fig. 1). The production of polysilicon is mainly done using the Siemens method in