On November 19, 2024, the eighth roundtable meeting of China PV Solar Efficient Heterojunction 740W+ Club was successfully held in Chengdu, Sichuan Province. The meeting was chaired by Tongwei, and 14 members of the 740W+ Heterojunction Club, Anhui Light Potential Energy, Anhui Huasun Energy Co. Ltd, Dongfang Risheng, Guangdong Mingyang Sunshine Volt, Guangdong Quanwei Technology, Guodian Investment New Energy, Guosheng Shian Technology, King Kong Photovoltaic, Liansheng Photovoltaic Technology, Shanghai Hengxi Photovoltaic, Tongwei, CNBM Joonxin, Rumphai Photovoltaic, Zhuhai Hongjun New Energy, etc. , were gathered together with leaders and top industry experts. Fourteen leaders of 740W+ Heterojunction Club members, including TÜV Rheinland Group and SOLARZOOM, were invited to participate in this roundtable. At the meeting, the leaders and experts discussed the heterojunction technology, production and market development, and did their best for the future development of heterojunction and the industry.   Mr. Liu Shuqi, Chairman and CEO of Tongwei Company Limited, attended the meeting and delivered a speech. As the rotating chairman of the conference, Mr. Liu Shuqi warmly welcomed the guests to the conference. China's photovoltaic (PV) industry has gone through many cycles, from following suit to taking the lead, and has become a veritable “China business card”. Technological progress is the key factor driving the PV industry forward. Among the many technical routes, heterojunction technology has formed differentiated advantages with its excellent surface passivation effect, low temperature coefficient, high double-sided rate and excellent low irradiation response.   Chairman Liu Shuji said that Tongwei is a pioneer in the research and development of heterojunction technology. It has been actively laying out heterojunction technology research and development since 2018. The core technologies of Tongwei, such as double-sided microcrystalline, copper interconnect, and 0BB technology, are the three major “tools” to promote the heterogeneous junction technology to reduce costs and increase efficiency, and realize large-scale mass production. At the end of October this year, the highest output power of Tongwei's heterojunction modules reached 776.2 watts, and the efficiency of the modules reached 24.99%, which is the ninth time to set a new record.   Dr. Xing Guoqiang, Chief Technology Officer of PV of TONGWEI, hosted the meeting. During the meeting, Dr. Xing Guoqiang had an in-depth discussion with the guests on topics such as heterojunction module testing, wafer size, and market outlook. Regarding the future development of heterojunction, Dr. Xing Guoqiang especially pointed out that the technological upgrading space of heterojunction determines its future development potential, and promoting the progress of heterojunction industry requires the joint efforts of the industry to create a better industry ecology.   I.HJT technology status and test analysis   During the conference, Mr. Liu Shuqi, Chairman of the Board of Directors of TÜV Rheinland, had an in-depth discussion with the guests on heterojunction technology and the current market situation. When talking about how to utilize the role and value of heterojunction, Li Weichun, Vice President of TÜV Rheinland's Global Power Electronics Service, said that innovation is the source of development, and that heterojunction technological innovation can be used to enhance the advantages from the three aspects of cost reduction, efficiency, and quality improvement.   Mr. Wang Xin, Chairman of Lian Sheng Photovoltaic Technology Co., Ltd. said that the value of heterojunction technology needs to be truly enhanced, which can be optimized in four aspects: market promotion, brand publicity, supply chain management and technical synergy, and that Lian Sheng is willing to strengthen the cooperation with all the units to help heterojunction technology reduce costs and increase efficiency. Mr. Zhang Zhongwei, Chief Scientist and Director of New Energy Research Institute of Guosheng Technology, expressed his hope to contribute more to the progress of heterojunction technology and increase the market share of heterojunction together with all of you here.   Dr. Gao Qi, TÜV Rheinland Greater China's technical expert for solar and commercial products, shared “TÜV Rheinland Heterojunction (HJT) Photovoltaic Module Electrical Performance Measurement Data Analysis and Test Process R&D Progress”. Heterojunction technology needs to demonstrate its advancement in terms of performance and reliability in order to gain market acceptance and expand its share. At this stage, the comprehensive performance parameters of heterojunction in the market are affected by different processes, equipment, and production procedures, etc., and the efficiency and performance of HJT modules from leading module manufacturers are significantly better than the market average. In the future, we hope to strengthen cooperation with various organizations in HJT measurement, testing and related standards.   Dr. Xing pointed out that cost reduction in heterojunction technology is important, but perhaps efficiency improvement is more important. If efficiency is not improved, the differentiation advantage of heterojunction technology will no longer be significant. Dr. Jiang Fangdan, Director of PV Research Institute of PV Technology Center of Tongwei Company, believes that it would be more reasonable to explain the substability of heterojunction technology in terms of working state.   Xu Xin, Senior Vice President of Anhui Huasheng New Energy Technology, said that although the advantages of heterojunction technology in the large version, especially in including ground power plants are very significant, but also need to improve the competitiveness of the small version to fight for this part of the market. According to Zong Jun, CEO of Guodian New Energy, it is hoped that all units will cooperate to improve the reliability test and other standards of heterojunction modules, so as to enhance the competitiveness of module products.   II.HJT Outdoor Empirical Evidence, Production Data and Optimal Size In the exchange discussion on the topic of “Heterojunction Outdoor Empirical Data”, Xu Xin, Vice President of Huasheng, said that whether in high temperature or relatively low temperature areas, heterojunction components have good outdoor performance in terms of power generation, attenuation rate, double sided rate, low light response, and so on, and so heterojunction products have a high degree of acceptance in overseas.   Lei Xinyue, president of QuanWei Technology, said that heterojunction is now emerging as a separate segment in the domestic large-scale project bidding and procurement. Heterojunction products in the outdoor, agriculture, marine and other fields also have more achievements, which makes heterojunction in the application of PV module selection advantages more prominent.   Xia Zhengyue, Minister of PV Technology Center of Tongwei Company, and Dr. Long Wei, Minister of PV Technology Center of Tongwei Company, attended this roundtable. At the meeting, Dr. Long Wei gave a speech on “Heterogeneous Junction Cell Production Unit Consumption Benchmarking”, which provided ideas for technological improvement of the production line by benchmarking the key indexes, water consumption and other production data of some enterprises. Wang Jilei, CTO of Anhui Light Potential New Energy Technology Co., Ltd. said that the key indexes of heterojunction technology need to be optimized, and the subsequent enhancement of technology can improve the efficiency of production lines and reduce production costs.   Dr. Yang Bochuan, President of Orient Sunrise Global Photovoltaic Research Institute, gave a speech on “Optimal Size of Heterojunction Cell Modules and Its Impact on Crystal Pulling, Module and Cell Side”, analyzing the wafer size and development trend. Under the existing specifications of crystal pulling, cell and module size, it is necessary to seek larger wafer size to increase module power.   Dr. Xing said that a more in-depth analysis of wafer size can be carried out to explore the optimal size in terms of wafer pitch and other indicators, so as to avoid repeating technical reforms caused by subsequent size upgrading again.   III.HJT Patent Analysis and Market Outlook   Participants shared their views on “Market Acceptance of HJT and Market Outlook”. Mr. Xu Xin, Vice President of Huasheng, believed that heterojunction is facing an unprecedented opportunity to go to the sea in light of the feedback from customers in the European market. Mr. Zong Jun, CEO of Guodian New Energy Technology, agreed with this view and pointed out that the improvement of heterojunction module efficiency is especially important for large-scale ground power plants.   Mr. Zeng Qingzhi, Chairman of Zhejiang Runhai New Energy Co., Ltd. said that to improve the market share of heterojunction, it is necessary to make group efforts and promote technological progress by opening up the upstream and downstream. Li Changhong, CEO of Zhuhai Hongjun New Energy Co., Ltd. believes that the roundtable has boosted the industry's confidence in heterojunction technology, and hopes that the technical advantages accumulated by various units can jointly help the industry progress. Qiu Wenkai, Executive General Manager of Guangdong Ming Yang Volkswagen Industry Co., Ltd. said that heterojunction market share can be increased through a variety of solutions such as new power reforms and high-speed photovoltaics.   Ye Dongting, Deputy General Manager of Shanghai Hengxi Photovoltaic Technology Co., Ltd. expressed the hope that industry leaders can share more technology to promote the entire heterojunction industry to reduce costs and increase efficiency, and War Zigang, Vice President of Procurement Center of King Kong Photovoltaic Co. Guo Wanwu, Deputy General Manager of CNBM Junkin Technology Co., Ltd, believes that technology cost reduction should cover upstream and downstream, and that reducing fixed investment will help to enhance the willingness to invest in heterojunction.   Talking about the patent risk of heterojunction, which has received much attention in the industry, Dr. Jiang Fangdan believes that the reasons leading to patent wars are more complicated, but it seems that the patent risk of heterojunction is still at a relatively low level at present. Liu Chang, executive secretary-general of High-Efficiency Heterojunction Club and founder of SOLARZOOM, said that the external situation, especially the necklace of technical patents, will be further amplified, so based on this background, the heterojunction has a relatively outstanding advantage in patents, and the subsequent in the PV market, especially in the overseas market, can give full play to the potential and value of the belief that there will be more companies to join the heterojunction camp. It is believed that more companies will join the heterojunction camp.   At the end of the meeting, Mr. Liu Chang, the executive secretary-general, announced that Ming Yang PV would be the next rotating chairman unit, and hoped that all the guests would gather in Zhongshan next time for more in-depth exchanges on the overall situation of the annual summary and the outlook for the new year.   During this roundtable, Tongwei also invited the guests to visit the showroom of Tongwei Global Innovation R&D Center to gain a deeper understanding of the layout and achievements of Tongwei's PV technology research and development.   With the successful conclusion of the 8th Roundtable Meeting of China PV Solar High-Efficiency Heterojunction 740W+ Club, we witnessed the positive actions of Chinese enterprises in the field of PV heterojunction and their firm confidence in the future development of heterojunction. The meeting also conveyed to the whole PV industry the attitude of cooperation and the temperature of future expectation of many PV leading and elite enterprises. Leaders, outstanding talents and experts from the heterojunction industry had an in-depth discussion on a number of related topics, which provided further guidance for the development direction of the industry and contributed to the formulation of industry specifications from multiple perspectives, fully demonstrating the profound strength of China's photovoltaic industry in technological research and development, its exuberant vitality in commercial practice, and its outstanding leadership in industrial development.  

Recently, Zhoushan City Bureau of Economy and Information Technology officially unveiled the list of municipal green and low-carbon factories for the year of 2024, and Zhejiang WINHITECH New Energy Co. The honor of “Zhoushan Star Green Low Carbon Factory”. This honor is an authoritative recognition of WINHITECH's long-term adherence to the green development strategy, but also for the green transformation of Zhoushan City's manufacturing industry has set a clear benchmark.         Since the beginning of its establishment, the company has deeply rooted the concept of green and low carbon in its heart, which runs through every link of production and operation. In the production process, the company not only actively introduces international advanced energy-saving and emission reduction technologies and equipment, but also achieves remarkable results in the application of intelligent equipment. By integrating the Internet, artificial intelligence and other cutting-edge technologies, WINHITECH realizes the precise control of the production process and the optimal management of energy use. Intelligent sensors monitor the energy consumption and emissions of production equipment in real time, while AI algorithms dynamically adjust the production parameters according to the quality data feedback to ensure that every bit of electricity and every raw material is efficiently utilized, thus significantly reducing the energy consumption per unit of output, improving the efficiency of energy utilization, and inserting the wings of science and technology for green production.   In terms of resource recycling and reuse, Runhai Photovoltaic also shows a forward-looking layout. The company has established an intelligent waste material recycling system to track the flow of materials in real time and ensure that waste materials are timely and reasonably processed and reused. This initiative not only minimizes the waste of resources, but also promotes the development of circular economy, implements the recycling flow of waste materials, and contributes to the construction of a resource-saving society.   Meanwhile, WINHITECH also excels in pollutant emission control. The company strictly abides by national and local environmental protection standards, and realizes accurate control of pollutants and compliance with emission standards by introducing advanced environmental protection treatment technology and intelligent monitoring system. The intelligent monitoring system can monitor the emission data in real time, and once abnormalities are found, the emergency response mechanism will be activated immediately to ensure clean emission.     Winning the title of "Zhoushan Star Green Low Carbon Factory" is both an honor and a new starting point for WINHITECH. The company will take this as an opportunity to further increase investment in the field of green and low carbon, continue to explore and innovate the green development model, and actively fulfill its social responsibility, so as to contribute more to Zhoushan City and even the country's carbon peak, carbon neutral goals. At the same time, Runhai Photovoltaic also hopes to encourage more enterprises to embark on the path of green and low-carbon development through its own demonstration role, to jointly promote the sustainable development of the economy and society, and to contribute wisdom and strength to the building of a beautiful China.   In the future, WINHITECH will continue to adhere to the concept of green development, led by intelligence, continuous innovation, continuous transcendence, to realize the beautiful vision of harmonious coexistence of man and nature, and make unremitting efforts.

Recently, Shenzhen Grand Olympic Center PV Building Integration Project has been successfully connected to the grid to generate electricity. The project utilizes about 6,500 sq. ft. of rooftop resources for the construction of badminton halls, and all of them are using WINHITECH high-efficiency TOPCon double-glazed photovoltaic modules, which continuously outputs surging green energy, promotes the green transformation with photovoltaic wings, and establishes a new typical of the development of photovoltaic+sports with high quality. On the green ground rubber of the stadium, the players are sweating; and on the roof, 2300 pieces of photovoltaic panels constantly output green power, for the Shenzhen Grand Olympic Center is covered with a sense of technology and environmental protection concept of the “green armor”, supplying energy while effectively reducing the indoor temperature, reducing energy consumption. The project adopts a flexible installation method, selecting the optimal version according to the site conditions, maximizing the use of the stadium roof area, with a total installed capacity of 1,000KWp, according to the mode of “self-generation and self-consumption, and the surplus power on the Internet”, with an estimated annual power generation of about 1,020,000 kilowatt-hours, and a full life cycle of about 10,000 tons of standard coal savings, reduction of carbon dioxide emissions of about 19,800 tons, reduction of CO emissions of about 19,800 tons, reduce sulfur dioxide emissions of about 600 tons, is a tailor-made green lungs for the Grand Canal Center. In the name of sports, using PV as a platform, promoting the development of green power, and helping the zero-carbon transition, WINHITECH will uphold the concept of green, innovative and sustainable development, promote the application of photovoltaic technology in public buildings and industrial and commercial fields, and is committed to integrating photovoltaic technology into daily life to create more adaptable “PV+” solutions, bringing a lower emission and greener experience to people's sports and life. We are committed to integrating photovoltaic technology into daily life and creating “PV+” solutions that are more adaptable to the usage scenarios, so as to bring a lower-emission and greener experience to people's movement and life.

I:The kick-off meeting builds a solid cornerstone, and the whole staff participates with great enthusiasm On June 18th, the company organized and held the kick-off meeting of 2024 Quality Month activities. The meeting announced the program of 2024 Quality Month activities, carried out careful planning and deployment of “Quality Month” series of activities, and laid a solid foundation for the smooth implementation of various activities. II:Quality publicity creates atmosphere and quality culture penetrates into people's hearts After the launching meeting, PPT was played in the electronic screen of the company's exhibition hall and at the entrance of each workshop to publicize the theme of quality month activities, and flags, display boards and other publicity materials were also placed in the company, which effectively created a strong atmosphere for the activities. III:Quality Training Expands Ideas, Enhances Capabilities through Mutual Learning and Comparison A total of 14 training programs were carried out during the whole quality month, including training of quality tools, product knowledge training, etc., striving to improve the quality awareness and ability of the company's employees in all aspects, and enhance the cohesion and competitiveness of the enterprise. IV:Fun quiz atmosphere warmly, knowledge competition style flies From July 15 to August 15, the online quality knowledge fun quiz was carried out, and all the staff participated enthusiastically with excellent results. The offline quality knowledge competition was held from August 16th, and 8 teams were selected through the preliminary round to enter the final round, which was held on September 23rd. The intense competition and exciting on-site interaction complemented each other, which fully demonstrated the good spirit and quality awareness of the staff, and also laid a foundation for enhancing the atmosphere of quality knowledge learning in the company. V:Skill competition with outstanding performance, down-to-earth technology to create the future On September 13th and September 14th, we organized a quality skills competition at the component end, including component appearance, component EL, and component stacking return. Frontline employees have signed up to participate in the competition, and under the premise of quality assurance, they constantly climbed the peak of speed, showing their personal style. VI:Sparks collide in the construction of workgroups, and the sense of responsibility is comprehensively strengthened The Excellent Workgroup Competition was held on October 24th. Each shift group shared their achievements through reporting and had an alternative exchange of quality management. The competition collided ideas and also played an active role in promoting the company's grassroots staff to continue to build a high level and quality of the team. The third QCC project summary review meeting was held on October 30, the jury listened to the overview of the declared projects, characteristics and difficulties, innovation and other content reports, scored each project, and selected the awards in accordance with the rankings. This activity is of positive significance to further enhance the innovation consciousness of the company members, continuously improve the quality and innovation level of the company, and promote the creation of brand projects. VII:Commendation Meeting Inspires Advanced, Work Together to Scale New Heights On October 31, we organized the 2024 Quality Month Summary and Commendation Meeting to award all the teams and individuals who achieved excellent results in the quality month activities.   At the conference, general manager Ni Zhichun said that quality is the life of an enterprise and the business of every employee. Do not think that the quality month is just a month, but make it a movement and stick to it for a long time. First, we should seize the center, carry out targeted quality indicators to attack, layer by layer target decomposition to the person, the implementation of the place; second, we should promote the quality improvement with the standard of fine management, around the details to say and do, from the subtle aspects to promote the quality of the work carried out smoothly; third, we should make it clear that the real criterion is the market, is the customer. In the future, we should continue to learn from the advanced enterprises in the industry, keep pace with the times, and strive to open up, win the trust of customers, and build the “WINHITECH” brand. Through these quality month activities, the company has improved the quality awareness of all staff, further consolidated the quality management responsibility, and laid a solid foundation for the company's high-quality development. In the next step, the company will continue to uphold the “quality wins, quality wins the future” concept, and constantly promote quality innovation and management improvement.

Recently, Zhejiang WINHITECH New Energy Co., Ltd (hereinafter referred to as: WINHITECH) received the notice of award and successfully won the bidding for the procurement of heterojunction photovoltaic modules for the Hurun Haiyuan Qiaoshan 90MW Pilot Demonstration Photovoltaic Project for Rural Revitalization of Wind Power and Storage Integration.   The total investment of this project is about 400 million yuan, with a filed capacity of 90MW on the AC side and about 112.5MWp on the DC side, including a 110kV booster station, PV plant and outgoing lines and other ancillary facilities engineering, which will contribute about 4.44 billion kWh of clean energy during the full-life operation period of the project after its completion. the construction and commissioning of the subsequent projects will significantly optimize the local energy structure, significantly improve the operational efficiency and It will strongly promote the sustainable development of the economy, promote the win-win situation of social, economic and environmental benefits, and inject zero-carbon power for rural revitalization.   Winning the bid not only accelerates the wide application of heterojunction technology in large-scale centralized power plants, but also highlights the unique advantages and value of the new quality productivity, WINHITEH will be based on accurate production planning, strict quality control, rapid logistics scheduling, upholding a high degree of professionalism, to ensure the smooth delivery of high-quality projects to escort. Looking to the future, Runhai Solar will continue to deepen the innovation drive, constantly optimize product performance, and create a brand new chapter in the PV industry with the power of heterojunction technology.