LONGi Achieves Two New Global Solar Cell Efficiency Records at SNEC 2025

LONGi Announces Two New Global Solar Cell Efficiency Records
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**12th June 2025** – At the highly anticipated SNEC 18th (2025) International Photovoltaic Power Generation and Smart Energy Conference & Exhibition, LONGi unveiled two groundbreaking technological advancements during the Technology Innovation Session. Certified by the authoritative US National Renewable Energy Laboratory (NREL), LONGi’s self-developed large-area (260.9 cm²) crystalline silicon-perovskite two-terminal tandem solar cell achieved a remarkable conversion efficiency of 33%, setting a new global record for large-area tandem cells. In addition, the efficiency of its back-contact (BC) module exceeded 26%, raising the bar for crystalline silicon module efficiency. Both accomplishments have been included in the Solar Cell Efficiency Tables (Version 66), highlighting China’s ongoing advancements in global photovoltaic technology.

### Tech Breakthroughs: World Records Redefine Industry Standards

At SNEC 2025, LONGi’s crystalline silicon-perovskite tandem solar cell achieved an unprecedented 33% efficiency on a large area of 260.9 cm² through material innovation and structural optimization. This represents nearly a 20% increase in efficiency compared to single-junction silicon solar cells and marks the world’s first 33% efficiency milestone at mass-producible dimensions, paving the way for reduced photovoltaic energy costs. Concurrently, the 26% efficiency of its back-contact (BC) modules showcases LONGi’s extensive expertise in this technology, pushing crystalline silicon module efficiency closer to the 27% threshold.

As a leader in the photovoltaic industry, LONGi has consistently driven technological innovation. The company has transformed the industry by popularizing monocrystalline technology over polysilicon, while also pioneering research in perovskite and BC solar cells, establishing a comprehensive research and development ecosystem that encompasses materials, equipment, and manufacturing processes.

**”LONGi’s innovation is deeply rooted in a respect for technological fundamentals,”** stated Li Zhenguo, Founder of LONGi, President of its Central R&D Institute, and the company’s newly appointed CTO. **”We focus not only on our own breakthroughs but also promote collaborative innovation.”**

These significant global records have been formally included in the 66th version of the Solar Cell Efficiency Tables, curated by Professor Martin Green and a global panel of leading scientists. This authoritative benchmark has been published in Progress in Photovoltaics since 1993 and is regarded as the “gold standard” for tracking advancements in photovoltaic technology.

### Innovation Genes: From Cell Technology to Collaborative Ecosystems

In celebration of its 25th anniversary, LONGi introduced a dual-engine “Innovation + Collaboration” strategy, which aims to intensify research and development in cutting-edge fields such as BC, perovskite, and hydrogen energy while fostering an open innovation ecosystem with global partners. Li Zhenguo emphasized, **”The era of photovoltaics as a dominant energy source has arrived, yet challenges like energy storage and grid integration remain. Only through collaborative innovation can clean energy truly benefit everyone.”**

During the exhibition, a highlight was LONGi’s collaboration with Belgium’s Innoputs Solar Team on the solar race car “Infinite Apollo.” Equipped with LONGi’s latest BC solar cells and flexible encapsulation technology, this vehicle will compete in the Bridgestone World Solar Challenge (BWSC). This cross-sector partnership exemplifies an innovative model for “PV + Transportation” applications, showcasing the limitless potential of technology.

At SNEC 2025, LONGi declared to the global community that Chinese photovoltaic enterprises are reshaping the industry landscape with their technological capabilities, propelling the transition to a zero-carbon future. **”Over the past 25 years, photovoltaic technology has made clean energy the world’s most economical power source,”** Li asserted during the event. **”For the next 25 years, our mission is to integrate green energy into every aspect of life. These records are not merely milestones for LONGi; they are catalysts for a global energy transition.”**

### About LONGi

Founded in 2000, LONGi is dedicated to becoming the world’s leading solar technology company, focusing on customer-driven value creation for comprehensive energy transformation. With the mission of **“making the best of solar energy to build a green world,”** LONGi has committed itself to technological innovation and established five business sectors, including mono silicon wafers, cells, modules, commercial and industrial distributed solar solutions, green energy solutions, and hydrogen equipment. The company has developed its capabilities to provide green energy and has recently embraced green hydrogen products and solutions to support global zero-carbon development.

For more information, visit [www.longi.com](http://www.longi.com).