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26.05%, DAH Solar set a new record of TOPCon cells mass production conversion efficiency!

26.05%, DAH Solar set a new record of TOPCon cells mass production conversion efficiency!

A new record! The mass production conversion efficiency of DAH Solar's TOPCon cells has reached 26.05%!   The mass production average conversion efficiency of TOPCon cells (PE-poly route) exceeded 26%! On September 3rd, with the superposition application of SE (Selective Emitter) laser doping technology, the mass production average conversion efficiency of DAH Solar TOPCon cells, has reached 26.05%, refreshing the industry record once again, reaching the industry leading level, showing the "DAH speed".     On June 9, DAH Solar and SHENZHEN S.C issued the joint announcement, that DAH Solar's TOPCon cells manufacturing base set the climbing record of 97% yield and 25.4% efficiency in just 23 days (not on SE at that time), which attracted high attention from the whole industry. Subsequently, through the continuous optimization of each technical links and materials, by the end of July, the mass production average conversion efficiency of DAH Solar’s TOPCon cells has reached 25.8%. At the beginning of September, with the equiped of laser SE equipment and technology, the conversion efficiency improved by another 0.25%, creating an industry-leading level by 26.05%.     DAH Solar has always focused on R&D and organization development.Not only in terms of module and PV system product innovation, we have successfully launched the global patent Full-Screen PV module and the world's first integrated PV system SolarUnit, and also forward-looking developand layout of cells technology, with absolute advantages to achieve the full production of TOPCon cells and the high-speed climbing of conversion efficiency and yield. In addition to that, DAH Solar has also precipitated for many years in terms of crystal pulling and slicing technology, laying a good foundation for further improving the layout of industrial integration.

Power Generation Increased by 11.5%! The Full-Screen PV Module Outdoor Field Test Report Published by TüV Nord

2022-05-26

Power Generation Increased by 11.5%! The Full-Screen PV Module Outdoor Field Test Report Published by TüV Nord



TüV Nord published the outdoor field test report for the Full-Screen PV Module. This product is innovated by DAH Solar, and it has a global patent in 18 countries and regions. The report indicated the power generation for the Full-Screen PV Module is increased by 11.5%.


The rooftops with small-angle installation conditions would form the bottom soiling due to the nature rain wash and the altitude intercept between the regular PV module frame and glass. This problem is the primary reason that causes the shade and hotspots on commercial and household PV stations. This bottom soiling could form a “shading belt” with different widths. At some extreme conditions, the “shading belt” could completely cover the PV module, which will decrease the power generation, harm the PV module generation capacity, and shorten the life span of the PV module. The Full-Screen PV Module with frameless front A-side design could let the natural rainfalls wash away the dust. This innovation would avoid the bottom soiling and eliminate the power loss by dust covering.


TüV Nord Outdoor Field Test PV Power Station in Ningxia Province


The Full-Screen PV Module outdoor field test PV power station is located in Xixia District, Ningxia Province (38°36’56.77” N,106°0’52.27” E). The demonstrative test was implemented by TüV Nord, which relies on its testing and demonstration platform. This comparison test applied 182mm Cells Full-Screen PV Module(DHT-M60X10/FS-460W) with frameless front A-side design, which was independently innovated by DAH Solar and the 182mm Cells regular PV module(DHT-M60X10-460W). To control variables, each module contains 6X30 pieces of cell, and the power generation efficiency are both 460W. All the PV modules are 182mm Cells PERC mono-crystal PV modules. The fixed installation angles for both types of modules are 5° (simulate the installation angles of color steel tile rooftop). The comparison groups used the same micro-inverters to achieve the MPPT tracking. These 2 groups could showcase the different power generation performances for 2 types of modules under natural conditions. Before the field test, the 2 groups were exposed to the sunlight 60Wh/m2 and tested the initial power. Then the lab controlled the installation method, ground condition (soil, sand, rock, and grass), and the length of the PV cable.


The front irradiance is 170.28 kWh/m2 in April. DAH Solar produced the Full-Screen PV Module generated 73.21 kWh, and the cumulative power generation per watt is 161.17 Kwh/kW. The regular PV module generated 65.06kWh,and the cumulative power generation per watt is 144.54kWh/kW. Compared to the regular PV module, the Full-Screen PV Module increased the power generation by 11.5%. This field test illustrated the Full-Screen PV Module has advantages in avoiding bottom soiling and reducing dust covering.



Analysis of Power Response Characteristics of PV Modules in Different Temperature Ranges


The power responsiveness data of the 2 modules in each temperature range indicated that in each operating temperature range, the performance of the Full-Screen PV module per watt (performance per watt = average power ÷ measured power) is better than the regular PV Module. As the height increases, the difference in power response characteristics between the Full-Screen PV Module and the regular PV module is proportionally increasing.



Analysis of PV Modules Strong and Weak Light Response Characteristics


In order to research the power generation performance of the 2 types of module under various irradiation values. TÜV NORD compared the power response characteristics of the 2 types of module in each irradiation range. The result showcase that the Full-Screen PV Modules’performance is better than the regular PV modules in each irradiation range. As the irradiation value increases, the difference in power response characteristics between the Full-Screen PV Modules and the regular PV modules also increases proportionally.



The Full-Screen PV Module is innovated by DAH Solar. This product holds a global patent in China, Brazil, Germany, Spain, The United States, Australia, Japan, and other 18 countries and regions. The Full-Screen PV Module obtained high recognition and reputation all over the world, because of its power generation increasing and product reliability. The Full-Screen PV Modules are used in a wide variety of commercial and household roof PV power stations and BIPV projects. The Full-Screen PV Module won the TÜV Nord Outdoor Field Performance Award.



DAH Solar believes innovation is the way to lead development. DAH Solar innovates and develops based on the needs of the PV market and aims to solve the sore point of the PV industry. We work on the user's power generation revenue and product cost performance. We continuously increase R&D investment and bring higher valuable PV products to the industrial, commercial, and household markets.



Global Technology Leading PV Enterprise DAH Solar Co., Ltd. focuses on the R&D, manufacturing, and sales of high-efficiency power generation PV modules, integrated PV systems, and solar energy storage systems. DAH Solar committees to provide better solar solutions innovatively. With more and more needs for clean energy, DAH Solar continues to bring a more efficient, convenient, and reliable series of PV products to global users. Technological innovation and patented products With our leading technological innovation and excellent product quality, we enable global users more conveniently and stably to obtain efficient clean solar energy. We have 200 patented technologies used in our PV products. Our global patented product Full-Screen PV module achieves front A-side frameless design, which increases power generation by 6%-15% (field test result published by TUV Nord) compared to the regular PV modules. The world's first integrated PV system, SolarUnit, could maximize the installation area of the rooftop. SolarUnit made the integrated design of modules and inverters come true. SolarUnit provides users with a more efficient, convenient, safer, and beautiful residential PV system. SolarUnit promotes PV products in the era of home PV appliances. World Recognized PV Supplier DAH Solar's products have been sold in more than 100 countries and regions around the world. In Latin America, we have become the TOP 3 well-known PV companies in Brazil. In Europe, the demand for our innovative products, Full-Screen PV Modules, is exceeding supplies. Besides, to provide better service to global customers, we have established our warehouses in many countries and regions, like the EU stock in Rotterdam in the Netherlands. In addition, we have established very convenient purchase channels for global consumers. Customers can purchase DAH Solar’s products through distributors or official websites and E-commercial platforms. Social Responsibilities DAH Solar’s Solar Cells, Modules, and Inverters R&D and Production Factories Bases not only attract a large number of local high-end technical talents but also creates more than 2,000 job positions for local residents. Every year, we hold many social activities, such as donations to charities, responses to the Covid-19 pandemic, contributing to community growth, etc. to advocate for social development. Our ultimate goal is to embrace the era of clean energy to protect the environment and the behalf of mankind. Employee Development DAH Solar is committed to creating a better career development platform for our employees. We seek equity for all genders and ages in the workplace. DAH Solar offers our employees a free team-building trip, annually. We believe that refreshing is another path to creation. DAH Solar is also concerned about the health condition of our employees. That's why we provide our employees with free health checks and a full package of healthcare. At DAH Solar, we treat our employees not only as team assets but as our own families.

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