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...
2023-08-24
Ranked BNEF Tier 1! DAH Solar Was Awarded The List Of Global First-tier PV Module
ManufacturersModule Manufacture in Q3 2023, on 21st August. DAH Solar is on the list by virtue of its unceasing technology innovation ability, the accountability of the brand influence and high-quality product, and abundant bankability. DAH Solar gains recognition around the world. Currently, DAH Solar has formed its innovation-leading and technology-driven path for its cultivation in the land of photovoltaics.
Authoritative certification, well deserved! DAH Solar’s innovations continue to be fruitful!
BloombergNEF PV Module Tier 1 list methodology is a tiering system for PV module products based on bankability, to create a transparent differentiation between the hundreds of manufacturers of solar modules on the market. BNEF Tier 1 has been recognized as the 3rd party standard for verifying PV module supplier qualification ratings. Also, It is an important judgment basis for investment in many global PV projects. Due to its neutrality and objectivity, BNEF Tier 1 is widely accepted as a reference in industrial analysis.
DAH Solar as the leading “inventor” in the PV industry has differentiated us from the market through innovational competitive advantages. After years of research and development of high-efficiency and high-quality innovative and exclusive global patented Full-Screen PV Module and the pioneering integrated solar system SolarUnit. Meanwhile, DAH Solar with the foresight to lay out the TOPCon solar cell technology. DAH Solar TOPCon solar cell (PE-poly route) has achieved an average conversion efficiency of 25.8%, and will soon exceed 26%, continuing to maintain its leading position in the industry.
DAH Solar is listed on the BNEF Tier 1 because of its technological innovation, stable and healthy financial situation, and its in-depth industrial integration layout. This result is also the recognition by professional research institutes and global markets towards DAH Solar’s technology innovation strengthening and brand influence. In the future, DAH Solar will persistently increase its investment in technology creation and bring greater value to global energy users. DAH Solar has the ultimate goal of accelerating the global energy structure transformation and providing our very help in meeting the global carbon-zero ear.