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"HUASUN HJT EXCLUSIVE GALA" kicked off in Shanghai on the evening of June 12th. More than a hundred partners from Asia-Pacific, Europe, the Middle East, Africa, South America, and other regions, including prominent energy enterprises, EPCs, distributors, and more, gathered together to share in this unique feast of heterojunction brilliance along the Huangpu River.
Jimmy Xu, Chairman & CEO of Huasun Energy, warmly welcomed all the attendees in his opening speech, stating, "In an era where homogenization of photovoltaic products is prevalent, Huasun has always remained committed to innovation in the heterojunction (HJT) field, forging an extraordinary path. Since its inception, Huasun has been dedicated to providing the industry with the top-tier photovoltaic products, striving for 'Five Excellences': high conversion efficiency, high power generation, strong reliability, low carbon footprint, and minimal costs."
Xu showcased Huasun's latest tandem samples, expressing optimism for their official launch later this year. He envisioned Huasun becoming not only the world's largest and premier heterojunction company but also the first to mass-produce heterojunction perovskite tandem products. Xu anticipated widespread adoption of Huasun's HJT perovskite tandem products within the next three years, boasting higher power output and efficiency for the industry.
It's widely recognized that crystalline silicon (c-Si) solar cells have a theoretical efficiency limit of 29.4%. To achieve efficiencies exceeding 35% in the future, tandem structures are essential. Perovskite/c-Si tandem solar cells can increase the theoretical efficiency up to 43%, breaking the bottleneck of single junction c-Si solar cells.
Heterojunction cells and perovskite tandem structures possess inherent advantages, and both of them are based on low-temperature processes. The transparent conductive oxide (TCO) layer on the surface of heterojunction cells allows for direct embedding of perovskite cell structures, facilitating efficient stacking. Coupled with the high open-circuit voltage characteristic of heterojunction cells, this tandem technology holds significant potential for achieving higher efficiencies.
In his speech, Huasun’s Vice President Matthew Jin extended gratitude to both longstanding supporters and new allies, remarking, "After four years of dedicated effort, Huasun has successfully deployed HJT products across solar projects worldwide. Now, we stand on the brink of introducing heterojunction perovskite tandem products, poised to deliver even greater innovations to the industry. Let's unite to usher in a brighter future for photovoltaics together!"
The meeting was chaired by Jin Jian, Sales Director of Huasun Europe.
Christian Comes, Business Development Director of Huasun Europe, elaborated on the past, present, and future of heterojunction and Photovoltaics to the audience. "HJT technology emerged in the late 20th century but faced slow industrialization due to its technical complexities. As a leading HJT-focused enterprise, Huasun has prioritized substantial investments in R&D since its inception, culminating in the successful large-scale production of HJT modules. Globally, we have delivered a cumulative total of 5GW of high-efficiency HJT products across projects spanning more than 40 countries and regions."
Comes emphasized Huasun's ongoing commitment to demonstrating that higher-efficiency HJT products can significantly reduce the Levelized Cost of Energy (LCOE) and improve Internal Rate of Return (IRR) for solar power plants.
Alongside new technologies, Huasun's zero busbar (0BB) technology attracted considerable interest from customers during the event. Leveraging advanced texturing processes, the latest HJT 3.0 bifacial microcrystalline technology, and efficient low-cost target materials, combined with cutting-edge 0BB technology and low-silver-content silver-coated copper pastes, Huasun has achieved impressive results. The G12 cells now boast an average efficiency of 26.15% in mass production, reaching up to 26.5% at the highest.
Underpinned by continuous technological innovation, Huasun continues to push boundaries in power and efficiency. This highlights the significant efficiency potential and broad commercial applications of HJT technology worldwide. Tracy Hong, Director of Huasun's Pre-Sales Technical and Product Support, elaborated on eight key advantages of Huasun's unique 0BB technology compared to traditional methods.
Hong noted, "It's important to highlight the module's remarkably low temperature coefficient of -0.24%/°C. Calculations indicate that at 65°C, power loss in 0BB modules can be reduced by approximately 6W compared to conventional HJT-SMBB modules of the same type, effectively increasing energy yield for power stations." Currently, Huasun has successfully integrated HJT 0BB technology into mass production with their Himalaya Series G12-132 and Everest Series G12R-132 modules, further enhancing efficiency and cost-effectiveness for ground-mounted power stations, as well as commercial and residential rooftop projects.
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