On May 7th local time, LONGi Green Energy announced in Madrid, the capital of Spain, that its self-developed Heterojunction with Back Contact (HBC) crystalline silicon solar cells have once again set a new world record for photovoltaic conversion efficiency, surpassing that of single-crystal silicon photovoltaic cells. They also introduced their second-generation BC (Back Contact) module product, Hi-MO 9. LONGi Green Energy's founder and president, Li Zhenguo, vice president She Haifeng, and chief scientist and vice president of the Central Research Institute, Dr. Xu Xixiang, attended the press conference.
At the press conference, LONGi Green Energy announced a new efficiency record for its BC technology created by the company's research and development team. Certified by the Institute for Solar Energy Research Hamelin (ISFH) in Germany, the self-developed back-contact crystalline silicon heterojunction solar cell achieved a photoelectric conversion efficiency of 27.30%, setting a new record for monocrystalline silicon photovoltaic cell efficiency. This breakthrough follows LONGi's previous record of 27.09% for HBC cell efficiency set in December 2023. Prior to this, LONGi had broken the world record for cell efficiency 16 times, becoming the "double champion" of cell efficiency world records in the monocrystalline silicon cell and crystalline silicon-perovskite tandem cell categories.
Furthermore, LONGi introduced that the HPBC 2.0 technology carried by Hi-MO 9, based on the BC technology platform, utilizes LONGi's high-quality Taiko silicon wafers and combines the company's self-developed composite passivation technology to significantly optimize and upgrade the cell's light absorption, photoelectric conversion, and current transmission capabilities. It boasts core advantages such as higher power generation capacity and greater reliability, with a maximum power of 660 watts and a conversion efficiency of 24.43%. Hi-MO 9 is expected to achieve large-scale production in the fourth quarter of this year.
