DAH Solar’s Full-Screen Technology Demonstrates 11% Energy Gain for Solar PV Modules 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. What is the “Full-Screen” technology for solar modules? 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%. 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? 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. What improvements does DAH Solar's Full-Screen product at this SNEC exhibit offer compared to previous models? 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 ce...
2023-09-05
Joyful News Continues to Flow! DAH Solar Awarded Rare Accolade As EUPD “Top Brand PV" Again!
In Intersolar South America DAH Solar received EUPD Research’s “Top Brand PV in 2023” in Brazil. This is the second time that DAH Solar was awarded in this area since 2022. EUPD granted DAH Solar the seal in the “Modules” category.
EUPD Research Vice President Daniel Fuchs presented the award and congratulated DAH Solar, recognizing DAH Solar’s competitive advantage in the global PV market. As one of the most authoritative market research organizations in the global photovoltaic industry, EUPD Research is known for its decades of research experience and unique evaluation models that stand for utmost quality and objectiveness. The selection criteria for this award are based on different dimensions of solar installers and real users’ feedbacks, including product quality, customer satisfaction, brand loyalty, and recognition etc.
Brazil is one of the fastest-growing PV markets over the world, due to its abundant sunshine conditions and the implementation of the "National Energy Plan" through local government. Brazil has always been regarded as a key market for DAH Solar. Through years of local market development, DAH Solar has consistently ranked among “The top three photovoltaic influence brands in Brazil” for several consecutive years, which proved it has industry-leading technology, management, and customer value standards in the minds of its local consumers. In the future, DAH Solar will continue to increase investment in localizing its business, delivering the most cost-effective solar technology and highest quality products to South American partners.