26.5%! A New Record of Mass Production Conversion Efficiency of TOPCon PV Modules by DAH Solar DAH Solar recently announced that the average mass production conversion efficiency of its TOPCon PV Modules has exceeded 26.5%, which sets a new record and continues to maintain the industry-leading level. Compared to the theoretical limit of 28.7% efficiency, breaking through 26% surely means a lot. The LECO laser-enhanced contact optimization technology was used to separate the two key steps of metal erosion and contact formation considering its high  concentration of energy and controllability during the high-temperature sintering process, in this way the sintering process can be more precisely controlled. The full integration of the LECO equipment was completed within 7 days, which not only improved efficiency but also effectively reduced the difficulty of Poly back, showing important significance for the long-term competitiveness of TOPCon PV Modules. DAH Solar TOPCon base completes construction to operation in six months, achieving ramp up production in 23 days, reaching an industry-leading level in three months, and setting a new record for mass production conversion efficiency within 6 months. As a benchmark enterprise for differentiated competition in the photovoltaic industry, DAH Solar's continuous breakthroughs and iterations in the key technology fields of the industry highlight the company's innovative strength and perseverance to industry leadership, providing a strong driving force for promoting industrial upgrading and sustainable development.

8.09% More Power Generation！DAHSolar Full-Screen PV Module Report of XuanCheng 1.04MW Power Station Power Generation Report from the first three quarters of 2023 for the 1.04MW Full-Screen module photovoltaic power station constructed by Anhui Zhongyi Electric Power Environmental Protection Equipment Co., Ltd. (referred to as Zhongyi Electric Power) Park located in Langxi Economic Development Zone, Xuancheng City, Anhui Province was released. The average power generation gain per watt of the Full-Screen module is 8.09% higher than that of Regular modules! Project Overview The project is located in Xuancheng City, Anhui Province, in a mid latitude region, with a subtropical humid monsoon climate and distinct seasons. The average annual power generation is about 1020 hours (the smaller the inclination angle of the photovoltaic power station installation, the shorter the available sunpower hours), and the average annual temperature is 15.6 ° C. It belongs to the category III development area of solar energy resources, and the development value of solar energy resources is good. Project Design The 1st phase of the project is connected to the grid with a capacity of 1.04MW, using a total of 1932 photovoltaic modules, using DAH Solar Full-Screen modules(540W, 182mm/72 pieces), as well as regular modules (same 540W, 182mm/72 pieces). The inverter uses Sungrow 100kW series inverter, with a total of 9 units. The project sets up distribution cabinets according to the grid connection points, with 10kV outgoing lines. The components are laid flat on the colored steel tiles of the factory building using crossbeam guide rails, and the installation angle is 5 °. The full screen component is installed in the same way as the regular component, using fixtures to fix it and equipped with EPDM gaskets to prevent scratching the front glass of the component when installing the pressure block. The power station was integrated into the power grid on September 27, 2022. Power Generation Results In the first three quarters of 2023, the cumulative power generation of the power station was 890896.1kWh, of which the Full-Screen PV Module power generation was 512188.1kWh, and the average daily equivalent hours were 3.22h; The power generation of Regular Module is 378708kWh, and the average daily equivalent hours are 3.02h. At present, all operational indicators of the power station meet the empirical requirements. This is due to the fact that the Full-Screen PV Modules do not accumulate water or dust, resulting in better power generation performance. The data from the report shows that the average power generation gain of Full-Screen PV Module reaches 8.09%. The front-side of DAH Solar Full-Screen PV Modules has frameless design, greatly improving the drainage and sewage capacity of the modules, and reducing the power generation loss caused by dust accumulation and obstruction. At the same time, without manual cleaning, the Full-Screen PV Modules are still very clea...

The Integrated 7GW PV Projects Of DAH Solar Will be Located in Shanxi On July 19th, 2023, DAH Solar Co., Ltd. and Jinzhong Development Zone Management Committee of Shanxi Transformation Comprehensive Reform Demonstration Zone, held the signing ceremony of the " DAH Solar Industrial  Integration: 7GW PV Projects". During the ceremony, we discussed the further development of renewable energy in Jinzhong City and signed a formal contract for the project. This project plans to cover a total area of about 400 acres, to build an integrated industrial distribution of 7GW of mono-crystal silicon rod, 7GW of high-efficiency N-type silicon wafers, 7GW of high-efficiency N-type solar cell and 7GW PV Module, with a total investment of about 5 billion RMB. This successful signing symbolizes that the cooperation among the DAH Solar, Jinzhong Development Zone, and China Three Gorges Corporation Shanxi Branch has risen to a new level. As a leading player in N-type solar cell technology, DAH Solar has rapidly laid out the N-type distribution since mid-2022. In May of this year, DAH Solar’s N-type TOPCon solar cell manufacturing base set a new speed recordfor efficiency and yield production of the TOPCon solar cell production line within 23 days, showcasing its impressive technical strength and innovation-driven development within the PV industry.

DAH Solar Module Manufacturing has been Comprehensively Upgraded At the beginning of 2023, DAH Solar completed the module production factory upgrade. As an innovation-driven and technology-leading solar manufacturing company. DAH Solar always focuses on improving manufacturing efficiency and quality control through production technology improvement. Currently, DAH Solar has upgraded its production process by bringing in high tech talents and advanced equipment. DAH Solar optimized serval production processes, like EVA positioning control, welding, automatic inspection, and water cooling. The result of this investment is very surprising. DAH Solar has achieved a new production speed that producing one module only takes 16 seconds instead of 22 seconds! For EVA positioning control, this process is to settle the EVA on the module for bonding the solar cells and the back sheet. This improvement could make sure the overall overage so the EVA sheet won’t shift in the later process. Besides, the welding procedure improvement is very significant. DAH Solar changed the old welding method. Now the welding is through heating the bus bar instead of directly heating the solder strip. For the TOPCon module, the solder strip is even thinner. If directly heating the strip, it has greater odds of causing the solder strip breakage. Heating from the bottom of the bus bar could perfectly solve the problem because the bus bar could balance the heat conduction. Also, the water cooling machine could help the module decrease the temperature after the EVA melting process. As we all know, after the EVA melting procedure, the module could reach to 140℃. Without the cooling system, it needs to take a longer time to reach the next step of operational temperature. Before it gets cool down, lifting the module could deform the glass and the solar cell, in some extreme cases, the glass would even be broken. DAH Solar introduce an advanced cooling system, which will shorten the cooling time and decrease the temperature to 25℃. This will help increase the production efficiency. During this visit, a direct phenomenon could be observed, which is the number of workers has decreased. The production manager Mr. Wang claimed that the DAH Solar module factory has accomplished fully automatic production, which means the production is getting more and more accurate and the requirement of workers are more strict. Mr. Wang said DAH Solar has upgraded all the inspection equipment. In the past, some inspections relied on visual inspection but now it changed to autoscan and the program will automatically check the quality. All in all, DAH Solar upgraded its production line to a more preciously, more efficient, and fully automatic. With those improvements, DAH Solar could achieve an annual module production capacity of 7GW+. More and more automatic equipment significantly increased production efficiency and better control of production details. DAH Solar commits to delivering high-quality solar ...

DAH Solar Continues To Create MiraclesWithin only 23 days, DAH Solar set a new record for the efficiency and yield production speed of the TOPCon solar cell production line. DAH Solar's TOPCon PE-poly production line (SE not included) achieved an average mass-production conversion efficiency of more than 25.4%, and the solar cell yield rate exceeded 97%, which is the leading record in the PV industry. This is also the fastest TOPCon production line to reach this indicator in history. DAH Solar has set a new record in the industry. DAH Solar, as a global technology-leading PV company, steps into TOPCon solar cell manufacturing for the first time and achieved such success, which fully reflects the professional level and execution efficiency of DAH Solar's TOPCon solar cell team. At the same time, it fully demonstrates that DAH Solar has always adhered to technology innovative development strategy and the long-term technological accumulation has once again interpreted the " speed of DAH Solar".

DAH Solar Plans To Build 7GW TOPCon Silicon Wafer Solar Cell Manufacturing Base in Shanxi On the morning of June 3, DAH Solar Co., Ltd., Jinzhong Development Zone Management Committee of Shanxi Transformation Comprehensive Reform Demonstration Zone, and China Three Gorges Corporation Shanxi Branch discussed the " DAH Solar 7GW high-efficiency N-type silicon wafer and solar cell production base project" reached the strategic cooperation and formally signed a contract. The project plans to build 7GW of high-efficiency N-type silicon wafers and 7GW of high-efficiency N-type solar cell production capacity, with a total investment of about 2 billion Yuan RMB. Before the signing ceremony, project-related leaders visited and inspected DAH Solar’s headquarters base and DAH Solar’s TOPCon Manufacturing base. To have the meeting with Xie Shenheng the President of DAH Solar and Bian Chonglei, the CEO of DAH Solar Waiting for the leaders to hold a discussion on this strategic cooperation. Xie Shenheng, the President of DAH Solar, indicated that DAH Solar's 7GW high-efficiency N-type silicon wafer and solar cell production base project is important for the company to deepen its industrial integration layout. The strategic cooperation between DAH Solar, Jinzhong Development Zone, and Three Gorges Group will further consolidate the company's strategic development foundation in the next five years, which improve the company's integrated industrial layout, and enhance the company's comprehensive competitiveness. The three parties will give full effort to their respective advantages, strengthen in-depth cooperation at the levels of industry, technology, and market, promote the high-quality development of the regional economy, jointly help the photovoltaic industry reduce costs and increase efficiency, and contribute to the achievement of the goal of carbon dioxide emission and carbon neutrality.