How can the quality of photovoltaic modules be improved to meet the needs of different customer groups?

To improve the quality of photovoltaic modules to meet the demands of different customer groups, efforts can be made in the following aspects:

Strictly control the quality of raw materials

Silicon wafers: Ensure the high purity of the silicon wafers and reduce the impurity content, as impurities can affect the photoelectric conversion efficiency of the solar cells. At the same time, control the uniformity of the silicon wafer thickness. Uneven thickness can lead to uneven stress in the solar cells during the production process, increase the risk of cracking, and affect the overall quality and reliability of the module.

Battery cells: Select battery cells with high conversion efficiency and good stability. Through strict testing and screening, solar cells with defects such as hidden cracks and chipped edges are eliminated. These defects may gradually expand during the use of the modules, leading to intensified power attenuation.

Packaging materials: High-quality packaging materials are adopted, such as EVA film with high light transmittance and high anti-aging performance, which can effectively protect the solar cells and improve the optical performance of the module. The backsheet with strong weather resistance can prevent the erosion of the internal structure of the component by external environmental factors. High-quality junction boxes can ensure good electrical connections, have excellent waterproof and dustproof performance, and reduce the probability of faults such as hot spot effect.

Optimize the production process

Battery cell welding: Advanced welding techniques and equipment are adopted to precisely control parameters such as welding temperature, time and pressure, ensuring a firm weld and good contact between the battery cells and the busbar. This reduces defects such as false welding and over-welding, lowers contact resistance, and enhances the output performance and reliability of the module.

Lamination process: Optimize lamination parameters, precisely control lamination temperature, pressure and time based on different component structures and material properties, ensure that the EVA film is fully melted and closely bonded with materials such as solar cells and backsheets, eliminate internal bubbles, improve the packaging quality of the component, prevent delamination and bubble problems, and extend the service life of the component.

Component testing: Establish a complete testing system and carry out multiple strict testing procedures during the production process. This includes electrical performance testing of solar cells, appearance inspection of modules, power testing, insulation testing, wet heat testing, UV aging testing, etc. It simulates various actual usage environments to identify potential quality issues in advance and ensure that the photovoltaic modules leaving the factory meet high-quality standards.

Strengthen quality control

Establish a quality management system: Based on international standards and industry norms, establish a complete quality management system, such as the ISO 9001 quality management system, clarify the quality standards and operation procedures of each production link, and ensure the standardization and normalization of the production process.

Process quality monitoring: Strengthen real-time monitoring of the production process. By setting up quality control points, conduct real-time monitoring and data collection of key process parameters and quality indicators, promptly identify quality fluctuations and make adjustments to prevent the occurrence of batch quality issues.

Supplier Management: Establish long-term and stable cooperative relationships with raw material suppliers, conduct strict evaluations and audits of suppliers, and regularly spot-check the raw materials provided by suppliers to ensure the stability and consistency of raw material quality.

Enhance the capacity for research and development innovation

Develop high-efficiency battery technology: Invest in R&D resources, actively explore and apply new high-efficiency battery technologies, such as TOPCon, HJT, IBC, etc., to enhance the conversion efficiency of solar cells, thereby improving the overall performance of modules and meeting customers' demands for high-power and high-efficiency photovoltaic modules.

Improve component structure design: Optimize the structure design of components based on the usage environment and requirements of different customer groups. For example, for distributed application scenarios, develop lightweight and flexible components; For large-scale ground-mounted power stations, design component structures with higher wind and snow pressure resistance capabilities to enhance the applicability and reliability of the components.

Conduct reliability research: Deeply study the reliability issues of photovoltaic modules under different environmental conditions. Through accelerated aging tests, outdoor empirical research and other means, evaluate the long-term performance and lifespan of the modules, provide data support for product quality improvement, continuously improve product design and process, enhance the durability and stability of the modules, and meet customers' requirements for long-term reliable operation of the modules.

Provide customized services

Understand customer needs: Have in-depth communication with different customer groups to understand their special requirements in terms of photovoltaic module power, size, appearance, installation methods, etc. For instance, industrial and commercial customers may have specific requirements for the size and power of components to accommodate the space and electricity demands of their factory roofs. Individual customers may pay more attention to the aesthetic appearance of the components and their integration with the building.

Customized product design: Based on the individualized demands of customers, we provide customized product design solutions. We optimize aspects such as the selection of solar cells, the packaging form of modules, and the appearance design to tailor photovoltaic module products that meet the specific needs of customers, thereby enhancing customer satisfaction and the market competitiveness of the products.