"The 19th China Photovoltaic Academic Conference (CPVC-19)" is hosted by China Renewable Energy Society, Photovoltaic Professional Committee, Jiangsu University, Changzhou University, Jiangsu Photovoltaic Science and Engineering Collaborative Innovation Center, Zhenjiang Science and Technology Association.. .

Although the mass production efficiency of PERC batteries has continued to increase by 0.4% to 0.5% annually in recent years, it is also approaching its theoretical efficiency limit. Solar cell technology is facing a new technological turning point. Who can take over the role of PERC? Currently, the focus of industry discussions is mainly on TOPCon and HJT technologies. In the long run, it is not yet certain who can lead the industry between these two. However, in the short term, TOPCon can be well compatible with the huge existing PERC production capacity, effectively extending the lifespan of existing PERC production lines while upgrading them, improving efficiency, and reducing PERC production

At the 19th China Photovoltaic Academic Conference (CPVC-19), Wang Junchao, CTO of Dahua Photovoltaic, delivered a keynote speech on "The Important Role of Equipment in Improving the Efficiency of Photovoltaic Cells", introducing the application of laser technology in new solar cell technologies in the future. He proposed that "equipment is the embodiment and materialization of advanced processes", and that good equipment is an important support for the industry to enhance market competitiveness and sustainable development capabilities.