In a remarkable development, LONGi has shattered records with a silicon-perovskite tandem solar cell boasting an impressive 35.5% efficiency. This achievement, unveiled at the 2026 Solar and Energy Storage Innovation Conference, marks a significant milestone in the evolution of solar technology.
The company's relentless pursuit of innovation has led to a series of efficiency improvements over the past few years. Starting from a 33.9% efficiency in 2023, LONGi's tandem cell has consistently pushed the boundaries, reaching 34.6% in 2024 and now surpassing 35%.
What makes this particularly fascinating is the demonstration of performance at larger device sizes. LONGi reported efficiencies of 34.3% for a 261cm² tandem cell and 32.2% for a 274cm² cell, showcasing the scalability and potential for real-world applications.
In my opinion, the key to LONGi's success lies in their focus on tandem modules. The company has achieved conversion efficiencies of 31.4% and 29.4% for these modules, which are independently certified and recognized in the latest Solar Cell Efficiency Tables. This level of validation and transparency is crucial for gaining industry trust and accelerating the adoption of these innovative technologies.
Furthermore, LONGi's recent announcement of a 28.13% efficient hybrid interdigitated back contact (HIBC) cell and a 26.4% efficient module highlights their expertise in both cell and module design. The consistent improvement in records, certified by reputable institutions like the Institute for Solar Energy Research Hamelin (ISFH) and the US National Laboratory of the Rockies (NLR), underscores the reliability and potential of their technology.
Looking ahead, LONGi's launch of the Hi-MO 9 Prime module series at Intersolar Europe 2026, with a power output of 680W and a module conversion efficiency of 25.2%, demonstrates their commitment to pushing the boundaries of solar energy.
From my perspective, LONGi's achievements are not just about breaking records but also about driving the industry forward. Their advancements in silicon-perovskite tandem cells and modules have the potential to revolutionize the way we harness solar energy, making it more efficient, scalable, and accessible.
As we reflect on these developments, it's evident that LONGi's contributions are shaping the future of renewable energy. Their relentless pursuit of innovation and their ability to translate laboratory achievements into real-world applications are a testament to their expertise and vision.
In conclusion, LONGi's 35.5% efficient silicon-perovskite tandem solar cell is a game-changer. It not only sets a new benchmark for solar technology but also opens up exciting possibilities for a sustainable and energy-efficient future. With their continued innovation and industry leadership, LONGi is paving the way for a brighter and greener tomorrow.
