As frameless PV modules regularly develop into a mainstream pattern within the {industry}, DAH Solar’s R&D Director, Dr. Jiang Chengyin, stated the corporate’s design for the three.0 Full-Screen model of its product additional improves power yield whereas decreasing prices and lowering the potential of fractures.
What is “Full-Screen” know-how for photo voltaic modules?
dr. Jiang Chengyin: Regular photo voltaic modules have frames that protrude above the glass floor, inflicting mud to build up as a result of rainwater can not drain away shortly. Through our patented design, we be sure that the body is flush with the floor, permitting the rainwater to run easily and carry away the mud, reaching a self-cleaning impact. Based on out of doors efficiency exams, at an set up angle of about 5 levels, which mimics the everyday set up angle of most home coloration tile roofs, our modules in Full-Screen can obtain an annual power achieve of roughly 11%.
By eliminating the normal aluminum body wrapping, can Full-Screen’s flat edge design meet the necessities of structural rigidity? How does it stand up to long-term out of doors sealing efficiency?
dr. Jiang Chengyin: Originally, the double-glass modules had no body. With the encapsulation of double-sided bolstered glass that completely meets the power necessities of the module. The addition of body designs primarily protects the glass contents from harm. Since the gap from the conductive a part of the interior cell to the within of the module is usually greater than 15 mm, the width of the insulation inside the within of the within can also be 15 mm, which ensures long-term sealing of outdoor. The DAH Solar design removes the entrance body however retains the facet and rear frames, bonded with high-strength silicone rubber, sustaining the safety of the glass facet. Silicone rubber presents confirmed sturdiness and climate resistance.
What enhancements does DAH Solar’s Full-Screen product provide at this SNEC exhibition in comparison with earlier fashions?
dr. Jiang Chengyin: Our Full-Screen product has developed to model 3.0, which is a big enchancment over variations 1.0 and a couple of.0. First, we adopted Full-Screen plus “Dense Busbar” (DBB), which is a design much like 0BB. DBB know-how has many benefits, particularly the discount of silver consumption throughout cell manufacturing, decreasing product prices. In addition, within the manufacture of the module, we deserted the high-temperature welding processes, utilizing low-temperature movie to bond the ribbons to the cell edges. This low-temperature encapsulation course of improves module energy, reduces digital welding and the potential of fractures, improves yield, and extends product life by avoiding flux residues that destroy grid traces. Overall, model 3.0 merchandise present vital enhancements in reliability and energy era in comparison with earlier variations.
In addition, we at the moment use industry-leading rectangular silicon wafers primarily based on 182 mm because the substrate for TOPCon cells. We additionally use laser-assisted sintering know-how to extend the product’s resistance to moisture corrosion, reaching a stable 23.3% cell effectivity in mass manufacturing. In addition, we use stacking welding manufacturing processes, supplemented by movie processing, optimization of mechanical load capability and different efficiency metrics. In addition, in response to buyer calls for, we’ve got tailored the colours of the modules appropriate for roofs, partitions, and sunrooms, and we’ve got acquired commendations for his or her aesthetic attraction.
Image: DAH Solar
Can you describe the market distribution and manufacturing capability of DAH Solar?
dr. Jiang Chengyin: So far, we’ve got shipped roughly 10 GW of modules to greater than ten thousand distributed initiatives around the globe. About half of those initiatives are put in in China, the remainder are distributed in lots of international locations and areas around the globe. Our enterprise was initially centered on the native, however after 2018, the abroad markets developed quickly, near or surpassing the native shipments. At one stage after the pandemic, virtually 90% of our firm’s income got here from abroad markets. However, lately, our focus has returned to China, and our home and international markets are actually evenly matched. We at the moment have a manufacturing capability of 6 GW every for cells and modules, all inside China.
Given the present market state of affairs, does DAH Solar have plans to broaden manufacturing capability overseas?
dr. Jiang Chengyin: We proceed to judge the feasibility and appropriate areas for the development of the manufacturing unit overseas, however attributable to some causes of instability, no plans have been confirmed but. Due to considerations about overcapacity and homogenized competitors, DAH Solar has been very conservative in increasing manufacturing capability, making certain that it stays inside applicable limits. We want to make use of totally different merchandise to steer sure market segments.
Which abroad markets are DAH Solar’s foremost markets at current?
dr. Jiang Chengyin: Currently, Europe accounts for about 30% of our abroad shipments, with different areas akin to Australia, Japan, Southeast Asia, and the Middle East being our foremost focus markets. . In specific, international locations like Pakistan and Saudi Arabia have seen speedy progress lately and are poised to develop into the following progress hotspots.
The questions and solutions on this sponsored interview article have been supplied by DAH Solar.
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