From 2021 to 2025, DAH Solar's Full-Screen Anti-Dust PV module has grown from a new creative idea into a classic product that many companies now follow. The anti-dust series, started by this product, creates the best way to stop dust with its "front without frame + 128 curved R-corner side frame" design. Using Full-Screen Anti-Dust PV modules greatly cuts down cleaning costs for solar plants. It also solves big problems like dust blocking sunlight and hot spot risks from the start. This makes it a top star product in the solar market. More and more people are using Full-Screen Anti-Dust panels. They build a strong shield for solar plants to work well and steadily. Rain can naturally wash away dust, cutting power loss and boosting yearly power output by 6-15%. These panels also work great in many places like factory roofs, building-integrated solar, and tough weather conditions. By using new tech to lower costs and improve results, they give strong support to the world's move toward clean energy and a sustainable future.
09/06/2024
As frameless PV modules are gradually becoming a mainstream trend in the industry, PV magazine had an interview with DAH Solar’s R&D Director, Dr. Jiang Chengyin, about the company’s design for its 3.0 Full-Screen product version further improves energy yield while lowering costs and reducing the likelihood of fractures. Dr. Jiang Chengyin: Regular solar modules have frames that protrude above the glass surface, causing dust to accumulate since rainwater can't flow off quickly. Through our patented design, we ensure the frame is flush with the surface, allowing rainwater to smoothly run off and carry away dust, achieving a self-cleaning effect. Based on outdoor performance tests, at an installation angle of around 5 degrees, which simulates the typical installation angle on most domestic color steel tile roofs, our Full-Screen modules can achieve an annual energy gain of approximately 11%. Dr. Jiang Chengyin: Originally, double-glass modules had no frames. With encapsulation of double-sided strengthened glass fully meeting the module's strength requirements. Adding frame designs primarily protected glass edges from damage. Since the distance from the internal cell's conductive part to the module edge is generally over 15 mm, the waterproof sealing insulation width at the edge is also 15 mm, ensuring long-term outdoor sealing. DAH Solar's design eliminates the front frame but retains side and back frames, bonded with high-strength silicone rubber, maintaining glass edge protection. Silicone rubber offers proven durability and weather resistance. Dr. Jiang Chengyin: Our Full-Screen product has advanced to version 3.0, which is a significant improvement over versions 1.0 and 2.0. First, we have adopted the Full-Screen plus “Dense Busbar” (DBB), which is a design similar to 0BB. DBB technology has several advantages, notably significantly reducing silver consumption during cell production, lowering product costs. Additionally, in module production, we've abandoned high-temperature welding processes, using low-temperature film to bond ribbons to cell surfaces. This low-temperature encapsulation process enhances module power, reduces virtual welding and the likelihood of fractures, improves yield, and extends product life by avoiding flux residues that corrode grid lines. Overall, version 3.0 products show significant improvements in reliability and power generation compared to past versions. Furthermore, we now use industry-leading rectangular silicon wafers based on 182 mm as the substrate for TOPCon cells. We also employ laser-assisted sintering technology to significantly enhance the product's resistance to moisture corrosion, achieving stable 23.3% cell efficiency in mass production. Additionally, we utilize stacking welding production processes, supplemented by film processing, optimizing mechanical load capacity and other performance metrics. Moreover, responding to customer demands, we've customized the colors of modules to be suitable for rooftops, walls, and sunrooms, and we've received commendation for their aesthetic appeal. Dr. Jiang Chengyin: Currently, we've shipped approximately 10 GW of modules to over ten thousand distributed projects globally. About half of these projects are installed in China, with the rest distributed across dozens of countries and regions worldwide. Our business was initially domestic in focus, but post-2018, overseas markets rapidly developed, nearing or even surpassing domestic shipments. During a period after the pandemic outbreak, nearly 90% of our company's revenue came from overseas markets. However, in recent years, our focus has shifted back to China, and our domestic and overseas markets are now evenly matched. We have a current production capacity of 6 GW each for both cells and modules, all within China. Dr. Jiang Chengyin: We've continually evaluated the possibility and suitable locations for overseas factory construction, but due to certain instability factors, there are no confirmed plans yet. Due to concerns about overcapacity and homogenized competition, DAH Solar has been very conservative in expanding production capacity, ensuring it remains within appropriate limits. We prefer leveraging differentiated products to lead in some market segments. Dr. Jiang Chengyin: Currently, Europe accounts for about 30% of our overseas shipments, with other regions such as Australia, Japan, Southeast Asia, and the Middle East being our key focus markets. Particularly, countries like Pakistan and Saudi Arabia have seen rapid development in recent years and are poised to become the next growth hotpots. Dr. Jiang Chengyin, R&D Director, DAH Solar
What is the “Full-Screen” technology for solar modules?
With the elimination of traditional aluminum frame wrapping, can the Full-Screen's flat edge design meet structural rigidity requirements? How does it withstand long-term outdoor sealing performance?
What improvements does DAH Solar's Full-Screen product at this SNEC exhibit offer compared to previous models?
Can you describe DAH Solar's market distribution and production capacity?
Given the current market situation, does DAH Solar have plans to expand production capacity overseas?
Which overseas markets are DAH Solar's key focus markets currently?
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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