In order to further reduce the metallization cost of N-type batteries, improve battery efficiency and promote the sustainable development of the PV industry, the 3rd N-type High Efficiency Battery and Metallization Technology Conference was held on January 10, 2025 in Jiangsu-Wuxi. Jointly organized by PV Industry Research and Changzhou Photovoltaic Industry Association, the conference focused on the most cutting-edge technology in the industry and attracted the attention of many industry experts and scholars.WINHITECH Technology R&D Center, Zhang Chao, was invited to attend the conference and delivered a keynote speech on the “Heterojunction 0BB Technology in Offshore Photovoltaic Power Station Development”, which demonstrated the company's profound research foundation and foresight in the field of HJT technology. The company demonstrated its profound research foundation and forward-looking exploration in the field of HJT technology.   With the rapid rise in installed demand for photovoltaic and the rapid popularization of N-type batteries, silver paste, a core consumable in the production of battery cells, its market demand has also shown a synchronous growth trend. However, the high cost and high consumption of silver paste has become a major bottleneck hindering the large-scale development of the N-type battery industry. In such a situation, how to accelerate the pace of less silver in the battery metallization process with the help of technological innovation, in order to achieve the goal of reducing costs and improving efficiency, has become a key issue that battery manufacturers need to break through.   In his speech, Mr. Zhang elaborated the advantages of HJT technology in the development of offshore photovoltaic power plant. He pointed out that HJT technology, with its excellent photoelectric conversion efficiency, low attenuation rate, high stability and excellent temperature adaptability, has become a key technology to enhance the power generation efficiency of offshore photovoltaic power stations and reduce operation and maintenance costs. Especially with the combination of 0BB technology, the photovoltaic conversion efficiency of HJT cells has been significantly improved, while the light loss has been reduced and the power generation performance of the cells has been enhanced.   Marine photovoltaic systems show great prospects for development due to their deployment potential in vast sea areas, policy support, and the increasing demand for electricity in coastal areas. However, the extreme conditions of high temperature, high humidity, high salt spray and strong winds in the marine environment place more stringent requirements on the performance and durability of PV equipment. In response to these environmental characteristics, Zhejiang WINHITECH New Energy Company has adopted a specialized design strategy. In terms of salt spray resistance, we recommend the use of aluminum frames with film thicknesses of AA15 to AA20; in terms of wind and wave resistance, we enhance stability by strengthening the structural design and equipping it with corresponding windproof bolts; in high humidity environments, we adopt junction boxes with IP68 protection level, and treat the terminals with dust plugs and cold-shrinkage tube technology. In addition, the denseness of the double-layer coated glass is also clearly required, and it is verified through testing that it can meet the special needs of marine applications. As a pioneer in the industrialization of heterojunction technology, Runhai Solar continues to focus on the production of heterojunction modules with heterojunction technology as the core. Currently, WINHITECH has supplied to a 100 MW offshore PV project in Daishan County, Zhoushan, Zhejiang Province.   Finally, Mr. Zhang Chao said that low-cost and high-efficiency HJT technology is not only a powerful driver of cost reduction and efficiency in the PV industry, but also a key to the large-scale application of offshore PV power plants in the future. He emphasized that WINHITECH will continue to increase R&D investment in the field of HJT technology, dedicated to solving the industry's pain points and promoting the commercialization of HJT technology. At the same time, the company will also actively seek opportunities for cooperation with other PV companies, and jointly explore how to accelerate the process of less-silverization through process innovation in the battery metallization link, to achieve cost reduction and increase efficiency, and to promote the sustainable development of the photovoltaic industry.  

On January 10th, the 2024 Annual Sales Summary Meeting with the theme of “Concentration and Gathering of Strength to Break through Adversity” was successfully held in Zhoushan. This meeting was hosted by Dr. Ni Zhichun, and all the marketing staff of WINHITECH gathered together to review the achievements and shortcomings of the marketing work in the PV industry in 2024. Looking forward to 2025, WINHITECH will continue to uphold the spirit of innovation and cooperation, and strive to develop the market and enhance brand influence, with a view to ushering in new opportunities and challenges in the PV industry. Let's look forward to a more brilliant future and work hand in hand!   At the conference site, the heads of each business segment of WINHITECH summarized the sales performance in 2024, and discussed the corresponding sales strategies with the global sales for the latest PV industry trends in 2025. The annual sales summary meeting is of great significance, as sales personnel from different regions gather together to gather wisdom and consensus from all sides, implement the regional market and sales focus direction, promote the development of sales in the whole region, and plan the strategic layout of WINHITECH in the whole region.   Mr. Ni Zhichun, General Manager, shared the current situation and form of today's PV industry and the outlook for the future. He said, in the wave of ground-flying inward winding in the PV industry, WINHITECH has always been adhering to the original intention, adhering to the high demand for quality assurance, and giving back to every customer with all our heart. We know that only through technological breakthroughs can we “break” the dilemma of involution and open up a unique path belonging to Runhai Solar. Looking to the future, WINHITECH will continue to uphold the “customer first, quality-oriented, innovation-driven” business philosophy, with more confidence, more full of enthusiasm, to meet the new year full of hope and challenges.   Finally, Mr. Zeng reviewed the development history of the company and looked forward to the brand new year of RunWINHITECH together with those present. He pointed out that under the complicated background of the global energy situation, the photovoltaic industry is one of the few industries with a high degree of certainty and broad prospects for development, and WINHITECH has made remarkable achievements in expanding the domestic market and radiating its influence to the global market. We are in a fast-changing and surging era, WINHITECH with its excellent performance in HJT technology and 0BB technology, like a shining star, illuminating the future road of green energy. Mr. Zeng believes that with the joint efforts of all the staff, WINHITECH will be able to ride the wave in the development of PV industry and lead the “China Smart Manufacturing” of Runhai Solar to the world.   Although the dream is far away, it can be reached by pursuing it; although the wish is hard, it can be realized by holding it. The past 2024 is destined to be the key journey of Runhai Photovoltaic Energy in the evolution of PV industry changes.WINHITECH has always insisted on the path of industrialization of heterojunction technology, followed the rhythm of the industry development, and provided high-efficiency heterojunction products and solutions to meet the needs of customers around the globe.In 2025, WINHITECH can rebound from the bottom of the bottom, and fight for the spring in the winter!

At the beginning of the new year, everything is renewed. 2025 January 1, the CPC Zhejiang WINHITECH New Energy Co., Ltd. party branch, the company's labor union organization to carry out “to climb to the top, climb the peak” theme of mountaineering activities, we gathered in Huang Yang Jian, the old and welcome the new year, to climb to the top, and jointly run to the next mountain and sea.   01 Though the road may be far, the journey will be accomplished.   This hiking activity started from “Huiyun Zen Temple” and ended at “Huangyang Jianfeng Peak”. Welcoming the warm winter sun, all the staff were in high spirits, walking along the hiking trails, encouraging each other, exchanging New Year blessings, and laughing all the way, showing their vigor and elegance. Although the hiking brought certain challenges, but also refined the staff's will, as the saying goes, “although the road is far, the line will be there”.   02 The end of the year, congratulations!   At the Huang Yang Jian waterfall, a unique staff birthday party and hiking activities collided, harvesting double the warmth and joy.   03 Honoring the Revolutionary Martyrs and Inheriting the Red Gene   Then all the staff to Huang Yang Jian four martyrs cemetery to carry out activities in memory of the martyrs of the revolution, in order to take practical action to inherit the red gene, carry forward the glorious tradition of patriotism and support for the army.   04 WINHITECH, bursting with passion   Auspicious Dragon Climbing to the Top, Golden Snake Welcoming the New Year, WINHITECH, at the top of Huang Yang Jianfeng Peak, we all sent our best wishes to the company. Though things are difficult, if you do it, it will be accomplished. A blessing, full of passion and fighting spirit, full of deep expectations for the company, full of confidence and determination to create brilliant again.   This mountaineering activity fully demonstrates the good spirit of WINHITECH staff's cohesion, forward-looking and courageous climbing. In the new year, WINHITECH staff will be one step at a time, one step at a time, with more enthusiasm, more high morale, based on their positions, to overcome the difficulties, and strive for excellence, to contribute to the company's high-quality development! Ride the wind and waves, and move forward! Create another brilliant!

​On December 26th, the ninth roundtable meeting of China PV Solar Energy High-Efficiency Heterojunction 740W+ Club was successfully held at the global headquarters of Ming Yang Group in Zhongshan, Guangdong Province. The meeting was chaired by Guangdong Ming Yang Solar, and 13 experts from the heterojunction industry, including Anhui Light Potential Energy, Anhui Huasheng New Energy, Dongfang Sunrise, Guangdong Ming Yang Solar, Guangdong Quanwei Technology, Guodian Investment New Energy, Guosheng Shian Technology, King Kong Photovoltaic, Liansheng Photovoltaic Technology, Shanghai Hengxi Photovoltaic, CNBM Junkin, Zhejiang Winhitec New Energy, Zhuhai Hongjun New Energy (in Chinese initials), etc., gathered together to discuss the development of heterojunction in China. SOLARZOOM was invited to participate in this roundtable meeting. This year's conference, titled “Heterogeneous Energy Convergence and New Journey”, aims to bring together the latest technological achievements and cutting-edge innovation and practice exploration of PV heterojunction, build a diversified bridge for communication of typical cases and application scenarios in the industry, and share the opportunities, promote the development, and embark on a new journey of energy transformation together.   At the meeting, all the industry experts and leaders discussed the topics of heterojunction technological innovation, production and market trends, analyzed the important role of heterojunction in PV solar energy transformation, driving factors and industry standard development proposals, and tried their best to make positive contributions to the technological innovation and high-quality development of heterojunction products.   Qian Yu, General Manager of Business Management Center and Assistant to Chairman of Bright Sun PV, warmly welcomed the guests on behalf of the company at the roundtable, and said that the essence of new energy is manufacturing, and technological innovation is the foundation and source of power. The development of photovoltaic needs to be centered on the integrated development of innovation chain, industrial chain, capital chain and talent chain, to deeply implement the “integration and integration” of results transformation, to create new application scenarios, and to cohesively build a long-term sustainable innovation ecosystem, so as to practically help the industry to develop in a healthy and orderly manner.   Zheng Lixin, General Manager of General Affairs Management Center of Bright Sun PV, presided over the meeting, pointing out that 740W+ Club has rich scientific and educational quality resources, and believing that under the discussion of each alliance unit, we can jointly promote the high-quality development of China's photovoltaic industry, which led to the discussion of the meeting of several important topics.     01 Photovoltaic off-grid production of green hydrogen dilemma breakthrough direction   Following the pace of the national strategy, under the background of dual-carbon, to enhance the utilization efficiency of renewable energy, to build a new ecological vitality of clean energy has become the responsibility and mission of the enterprise. How can we empower the development of green energy in the new era by utilizing renewable clean energy such as wind power and photovoltaic?   Mr. Peng Qinliang, deputy director engineer of Hydrogen-Amino-Alcohol Integration Design of Ming Yang Group, shared the “PV Off-grid Hydrogen Predicament Breakthrough Direction”, and proposed that under the market trend of “internal volume and external extension”, the PV industry urgently needs to integrate the development of hydrogen energy, and utilize the wind and light resources to build a scenario for the consumption, and jointly form a feasible application scenario and business model innovation to realize the overall green solution. Overall green solutions.   Li Pengkai, director of the office of the chairman of Huasheng New Energy, expressed his appreciation for the pioneering work of Ming Yang Group in the field of off-grid hydrogen production, and said: Huasheng is also paying close attention to the development of off-grid hydrogen production technology, and is actively exploring the use of photovoltaic off-grid hydrogen production to realize the self-manufacturing of electronic-grade hydrogen required for the manufacture of heterojunction itself as well as the efficient recycling of hydrogen. After the commercialization of this solution, it will further promote the heterojunction industry's efficiency, cost reduction and carbon footprint, and Huasheng will share the technical solution with various club members in the future to promote the collective benefit of the industry.   Qiu Wenkai, Executive General Manager of Ming Yang Volt, emphasized that Ming Yang Group, as a leader in the whole new energy industry chain, is also actively laying out the wind-solar hydrogen storage and other fields. In terms of carbon footprint, HJT produces a lower carbon footprint. In order to realize win-win cooperation between enterprises and users, we should focus on the integration of new energy resources, reduce the cost of energy replacement, and promote the synchronous development of “hydrogen production + PV”.     02 0BB Technology Program Current Production Status Report and Study   As a cutting-edge innovative industrialized solution in the field of PV modules, 0BB technology solution is gradually promoting HJT products to a broader market. Mr. Zou Huilei, Minister of R&D of Bright Solar Module, brought the introduction of “0BB technology solution now production status report and research”, he introduced that Bright Solar currently adopts IFC direct lamination technology, and has passed the laboratory IEC standard reliability test and TÜV third-party agency testing and certification. No main grid design can significantly reduce the silver paste consumption, and thus reduce the overall manufacturing cost of photovoltaic cells, of which the effect of HJT is more prominent compared with BC cells. Bright Solar's 0BB adopts ultra-fine welding tape, which has smaller surface profitability under changing temperature environment and has more contact points with fine grid lines, making the cells less prone to hidden cracks and effectively realizing the improvement of module yield rate. In the future, Bright Solar will gradually expand the mass production scale of 0BB products according to the market demand, complete the supply according to the market demand in accordance with the quality and quantity, realize the cost reduction and increase efficiency, and empower zero-carbon photovoltaic.   Zhang Wenbin, CTO of Guosheng Technology and Executive Director of New Energy Research Institute, proposed that in the context of industry volume, heterojunction needs to give full play to its technological advantages, make distinctive products that are different from TOPCon and BC, and find core competitiveness in order to win the race track faster. On the other hand, cost is still the core issue of heterojunction technology, and in the future, we need to maximize cost reduction under the premise of ensuring product quality. Therefore, we need to focus on supply chain innovation together with upstream and downstream suppliers to solve the problem of cost reduction in each link.     03 210.6 Battery Size Advancement Continued Discussion   In the process of battery size iteration, we adhere to the spirit of craftsmanship, excellence, only to ensure that the product standards stand the test of time, in order to protect the industry's continued progress and healthy development of technology. Continuing the previous roundtable discussion, Yang Bocchuan, Director of Global Photovoltaic Research Institute of Orient Sunrise, brought the introduction of “G12 Pro Cell Size Advancement Continuation Discussion”, and proposed that heterogeneous junction cells need to bring into play the strengths of the CVD, PVD plate production equipment, and under the unchanged condition of the module, let the wafer size do the optimal design, and thus enhance the power of the module. Orient Sunrise led 210 G12 Pro products, in the case of wafer cost does not increase, stacked with wafer tolerance optimization, can achieve module power increase. In the future, the silicon wafer industry will also be attacked in the aspect of refinement.   Tang Doudou, Vice President of Liansheng PV Technology, pointed out that the HJT (heterojunction) industry is at a critical turning point, and it should adapt to the changes quickly, race against time, and strive to realize the significant improvement of the overall power products as well as the establishment of a unified standard in the first half of next year. By enhancing product power, improve energy conversion efficiency, to meet the market demand for efficient and reliable photovoltaic products. At the same time, the establishment of a unified standard threshold will help promote the industry standardization, standardization of development, reduce disorderly competition, and promote the optimal allocation of resources.     04 Finding the path to HJT breakthroughs: On the TOPCON, BC and HJT Technology Routes SWOT Analysis   With its excellent performance potential and market recognition, HJT is gradually becoming a rising star in photovoltaic solar energy. From material innovation to process optimization, from cost reduction to market promotion, HJT is seeking a technological breakthrough that is superior to Topcon and BC. In this regard, the experts at the meeting discussed the SWOT analysis of the three mainstream high-efficiency solar technologies.   Dr. Zhang Zhongwei, Chief Scientist and Director of New Energy Research Institute of Guosheng Technology, threw out two important topics: one is market promotion, there should be an urgent sense of crisis, and how heterojunction can occupy a higher market share in the fierce market competition among the current troika (Topcon, HJT, BC); the other is technology enhancement and product application, under the premise of ensuring reliability, how to improve the efficiency of heterojunction and reduce the cost to significantly pull the power advantage. significantly pull the power advantage. He pointed out that leading heterojunction enterprises should play a leading role in scale and expand in specific directions such as efficacy enhancement (HJT's own efficacy enhancement and accelerated research and development of Hybrid BC), cell size, and differentiated application areas (especially high-temperature regions and application environments with high double-side-rate power generation), in order to realize better product performance and application share.   Tang Xuan, Executive Vice President of Liansheng PV Technology, pointed out that the three mainstream PV technology products in the market, despite their unique features, are generally facing the problem of not fully tapping the potential of power generation, which to a certain extent restricts the overall efficiency of the PV industry. In contrast, HJT (heterojunction) technology shows relatively obvious advantages in terms of power generation. It not only brings new development opportunities for the industry, but also prompts us to continuously explore and innovate, with a view to guaranteeing power generation efficiency while further overcoming the shortcomings of the existing technology, and promoting the development of the PV industry in the direction of greater efficiency and sustainability.   Li Yang, Vice General Manager of Guodian Investment, said that the consumer market is more focused on the differentiation of power generation and product quality, how to convey the advantage of “HJT has the lowest carbon footprint among mainstream technology routes” to the consumer side, and how to enhance the value-added and the comparison with other batteries will be the highlights of HJT, which need to be internally formed into a unified consensus. All these need to form a unified internal consensus. At the same time, for heterojunction cost reduction and efficiency technology, including 0BB and 210.6 large-size wafer technology, we should give full play to the advantages of the group, at least within our club to form a similar guide to the group standard, so that we can polish the product, and work together to promote the progress of heterojunction technology, to form a synergy, and compete with TOPCON and BC technology.   Comprehensive alliance units to discuss the content, bright sunshine ambient general management center general manager Zheng Lixin emphasized that we have to reach a consensus on the standard through the 740 club platform of the resources owned by each enterprise. Ming Yang has close cooperation with the alliance units, including business dealings with Liansheng PV Technology, Dongfang Sunrise and King Kong PV. Unifying technical standards will help promote the standardized development of the industry. In the future, we hope that the alliance can work together to promote and formulate technical standards, and even publish white papers, so as to jointly empower the development of PV.     05 Maintenance discussions on the co-development of the HJT marketing PPT and economic modeling program   How to create a more competitive HJT marketing strategy and economic model through collaborative innovation? Continuing from the previous topic, Mr. Hou Hongtao, Vice President of Hongjun New Energy Technology, proposed a discussion on the co-development and maintenance of HJT marketing PPTs and economic modeling solutions. Mr. Hou believed that a unified presentation of comparative power plant data and the development of a standard program model would produce more convincing information and documents to persuade the market and consumers.   Zhang Bojing, Sales Director of Shanghai Electric's Marketing Center, emphasized that the collection of power plant data can take into account the data of third-party agencies, the company itself and its customers in order to ensure the objectivity of the data.   Combined with the program arguments and opinions of the alliance leaders, Zheng Lixin, General Manager of the General Affairs Management Center of Bright Sun Volt, proposed to form the first joint decision-making collaboration since the alliance roundtable, and to jointly develop the HJT marketing PPT, whose PPT outline is provided by Hongjun New Energy, and the specific form of which will be led by the Light Storage Billion to allocate to the enterprises to jointly complete the assistance, and to be iterated and improved in the subsequent meetings.   On the other hand, regarding the power generation, investment calculation return rate, the meeting under the auspices of Zheng Lixin, General Manager of General Affairs Management Center of Bright Sunshine Volt, unanimously adopted to unite the existing power generation project data of each enterprise, and led by Optical Storage Billion to form the public number album of “Power Station Project Data”, and each enterprise will provide the relevant data to improve the HJT market project case. HJT market project cases. The content of each album can eventually become the project data reproduced and released by each enterprise unit in the public number to further create HJT project standards and guarantee the rigor.     06 How to ensure HJT's “price self-regulation” under the industry's new regulations   In recent years, national policies have actively guided PV enterprises to reduce PV manufacturing projects that simply expand production capacity, strengthen technological innovation, improve product quality and reduce production costs. Based on this background, HJT should focus on enhancing technology research and development and product quality assurance. Chervon Technology proposes a topic: how to ensure HJT's “price self-discipline” under the industry's new regulation? Suggested that we should discuss and participate in the discussion, QuanWei Technology suggests defining the guide price of HJT in the name of the club, so as to form the self-regulation of price.   In the bright sunshine volts of the proposal, the alliance unit unanimously adopted in the subsequent monthly meeting of the alliance unit can reach a consensus, share the project situation and related data analysis, etc., the alliance gradually formed the industry “price self-regulation” of the enterprise consensus!   To promote the quality and speed up the innovation of PV industry with new quality productivity! The successful holding of this roundtable has further strengthened the faith of all enterprise members to move forward hand in hand. We firmly believe that HJT technology will create growth momentum for the global green transformation and sustainable development industry, continue to tell China's green story, create China's green practice, comprehensively empower the construction of green and clean energy system, and practically help the realization of the “dual carbon” goal by overcoming the difficulties and continuous innovation again and again.

On December 26th, High-tech Enterprise Recognition and Management Network released “Announcement on the filing of High-tech Enterprises Recognized and Reported by Zhejiang Provincial Recognition Organization in 2024”, and the company was recognized as “National High-tech Enterprise in 2024”, and formally entered into the ranks of national high-tech enterprises. State-level high-tech enterprises, marking a new breakthrough in scientific and technological innovation and R & D capabilities, and injecting new momentum for future development.   State-level high-tech enterprises are guided, managed and supervised by the Ministry of Science and Technology, the Ministry of Finance, and the State Administration of Taxation, and are defined as those enterprises that have sustained research and development and technological achievement transformation within the “high-tech fields supported by the state”, forming the core intellectual property rights of the enterprise.   Since its establishment, WINHITECH has been committed to the R&D and innovation of high-efficiency heterojunction solar cells and modules as well as the application of high-efficiency production. WINHITECH adheres to the innovation-driven approach, and continues to improve the sustained investment in R&D to ensure the company's innovation capability in the field of heterojunction. The company has carried out 16 technology R&D projects, covering a wide range of aspects such as photovoltaic materials, high-efficiency heterojunction cells and modules R&D technology. The company's research and development of high-efficiency heterojunction solar cells without main grid and high-conversion and high-reliability heterojunction solar modules have been listed in the provincial new product trial program for many years, and the team's research and development of large-area, high-stability chalcogenide/silicon stacked solar cells and modules have been listed in the “Leader Goose” program, and the team's R&D project is listed in the “Leader Goose” program. “The team's company has been awarded the provincial science and technology-based small and medium-sized enterprises and the provincial intelligent factory (digital workshop).   Winning the title of “National High-tech Enterprise” is not only a reflection of WINHITECH's unremitting efforts on the road of scientific and technological innovation, but also an incentive and encouragement for future development. This honor signifies that WINHITECH has built up a perfect technological innovation research and development system, and its research and development achievements have been recognized at the national level. It is of great significance to accelerate the company's pace of product innovation, process innovation and technological progress.   Looking ahead, WINHITECH will take this certification as an opportunity to unswervingly take the road of innovation-driven development, further increase R & D investment, strengthen technological innovation capabilities and talent team building, and continue to enhance its level of scientific and technological innovation and core competitiveness.WINHITECH is committed to becoming an important force to promote the development of new productivity, and constantly inject new vitality and power.