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...
2024-05-16
WE & Partners GmbH: DAH Solar’ s Significant Partner in Europe
To strengthen global partnerships and foster strategic alliances, DAH Solar, the founder and master of Full-Screen PV Modules, paid a pivotal visit to its esteemed overseas partner: WE & Partners GmbH in Delitzsch, Germany in 2023.
WE & Partners GmbH is an important partner of DAH Solar in the German PV market. Having been deeply involved in the German PV market for years, WE & Partners GmbH is well-recognized and has a good understanding of the local market and user needs as comprehensive and solution-oriented consulting is always the core of their service and product range.
The visit, led by the president of DAH Solar, William Xie, aimed to reinforce existing business relationships and explore new avenues for collaboration in innovation and market expansion. The delegation had constructive conversations with key stakeholders of WE & Partners GmbH, reflecting the shared commitment to driving the growth of clean energy use in Germany.
The visit ended with an optimistic outlook for future collaborations, affirming DAH Solar's position as a trusted and proactive global partner. DAH Solar commits to all of our partners that we will provide the best support to reach our ultimate goal which is to provide a sustainable lifestyle choice to the energy users worldwide.
To learn more about WE & Partners GmbH, you can visit: