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On the second day of the SNEC Exhibition, OSDA SOLAR held a grand certification award ceremony at its booth, officially receiving TÜV Rheinland's first global certifications for N-type TOPCon dual-glass modules in desert photovoltaic applications and 0BB technology. This marks a significant breakthrough for OSDA SOLAR in photovoltaic technological innovation and product quality.
Thanks to abundant sunlight resources and vast space, desert areas are becoming important regions for large-scale photovoltaic power generation. However, extreme conditions in desert environments such as high ultraviolet radiation, high temperatures, large day-night temperature differences, and sand erosion pose severe challenges to the long-term reliability of photovoltaic modules. The desert photovoltaic module standard launched by TÜV Rheinland clarifies the key technical requirements and testing methods for modules in desert environments, helping enterprises optimize product design and improve the weather resistance and economy of modules. OSDA SOLAR's N-type TOPCon dual-glass module has passed TÜV Rheinland's rigorous 3.5-month testing, making it one of the first enterprises in the world to obtain this certification. This not only demonstrates OSDA SOLAR's technical strength in the field of desert photovoltaic modules but also lays a solid quality foundation for the development of the global desert photovoltaic market. Mr. Li Weichun, Vice President of Global Power Electronics Product Service and Vice President of Solar Energy and Commercial Product Service in Greater China at TÜV Rheinland, said: "TÜV Rheinland has always paid attention to industry pain points. Relying on global experience and technical advantages, we promote the industry to move towards higher standards. OSDA SOLAR's acquisition of the certification is the result of joint efforts between both parties in photovoltaic technological innovation and quality improvement."
As a cutting-edge technology in the photovoltaic industry, 0BB technology abandons the traditional busbar design. It retains only the fine grid lines (sub-grids) on the solar cells and adopts ribbons or polymer films embedded with metal wires in the module manufacturing process to collect current and connect the cells in series, thus forming a "zero busbar" structure. In terms of cost reduction, 0BB technology boasts remarkable advantages. It reduces silver paste consumption by about 30%, ribbon usage by 10%, and encapsulant film by 30%. Moreover, it supports the thinning of silicon wafers to 100μm, further compressing production costs. Meanwhile, the elimination of busbars expands the light-receiving area, and the dense solder joints shorten the current transmission path, which significantly improves the photoelectric conversion efficiency and reliability of the modules.
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