Intersolar Europe 2023 witnessed New World Record: 33.5% Solar Cell Efficiency

LONGi Green Energy has achieved a groundbreaking milestone in solar cell efficiency. Recently, at Intersolar Europe 2023, the company proudly announced a record-breaking 33.5% conversion efficiency for crystalline silicon-calcium titanite stacked cells on commercial-grade suede CZ wafers. This achievement has been certified by ESTI, a prestigious European solar testing institute, making it the highest efficiency ever recorded for this technology on commercial grade CZ wafers, setting a new world record.

In addition, just several days ago, at the SNEC PV exhibition in Shanghai, LONGi Green Energy achieved another impressive milestone. They attained a conversion efficiency of 31.8% for crystalline silicon-calcium titanite stacked cells on commercial-grade charmed CZ wafers, positioning themselves among the top three highest efficiencies worldwide and the first in China.

These advancements in calcium titanium cells as the next generation of battery products have elevated LONGi Green Energy to the forefront of battery technology. Ryan, Co-founder from Bornsolar, praised LONGi Green Energy for their achievement, stating that they have secured their position at the starting line of the next generation of solar cells.

Crystalline silicon cells traditionally faced an efficiency limit of 29.4%. However, the industry has recognized laminated batteries as the primary technical breakthrough to surpass this limit. LONGi Green Energy has been leading the way in research and development, consistently surpassing efficiency records. They currently hold the world record for silicon solar cell conversion efficiency and have set 14 new solar cell efficiency records since April 2021. Their previous breakthrough with silicon heterojunction cells reached a conversion efficiency of 26.81%, breaking a five-year-old world record.

Li Zhenguo, founder, and president of LONGi Green Energy, highlighted the significance of solar cell efficiency in driving PV technology innovation. He emphasized that even a 0.01% increase in conversion efficiency can result in substantial cost savings for downstream power stations. LONGi Green Energy’s commitment to scientific and technological innovation has allowed them to transform advanced technology into production capacity, continuously pushing the boundaries of what is possible.

With a focus on stacked solar cells, LONGi Green Energy’s R&D team has made significant breakthroughs in key technologies such as chalcogenide thin-film crystal growth on silicon substrates, high-efficiency bulk phase passivation, and optical management. These advancements have led to rapid improvements in the efficiency of silicon-based stacked cells.

Experts like Mark Jacobson, professor of Cornell University Solar Energy Research Institute, recognize the significance of LONGi Green Energy’s achievements. He affirms that their efforts in developing chalcogenide/crystalline silicon heterojunction laminated technology align with the future direction of solar cell development, placing LONGi Green Energy on the right path toward high-efficiency cell technology.

As the PV industry faces overcapacity, discussions around new cell technology innovation have become paramount. Technological advancements are the core of market competition, and LONGi Green Energy’s pioneering work positions them as leaders with market foresight. While the market undergoes reshuffling, LONGi Green Energy has taken a proactive step, laying the foundation for the next generation of batteries. Their commitment to innovation and vision have solidified their position as an industry leader.

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