Certified by the authoritative Institute for Solar Energy Research Hamelin (ISFH) in Germany, the photoelectric conversion efficiency of LONGi's independently developed hybrid back-contact crystalline silicon solar cell (HIBC) has reached 27. 81%, pushing the exploration of the. LONGi supplies its reliable, high-performance solar modules to 6 continents and 85 countries and regions to power the world toward a low carbon future. HIBC (Hybrid Interdigitated Back-Contact) refers to a high-low temperature composite passivated back contact technology. LONGi has laid out several. At the key node of intergenerational transition of global Photovoltaic (PV) technology, the back contact (BC) cell technology is leading the new-generation PV technology paradigm revolution, becoming the core engine to drive industry cost reductionand efficiency improvement and realize energy. Industry-Leading Efficiency at Competitive Prices: LONGi achieves up to 24. 43% efficiency in commercial production while maintaining pricing of $2. By offering high-quality, reliable products and systems, we provide holistic solutions for the solar and renewables industry. A full. On June 12th 2025, at the highly anticipated SNEC 18th (2025) International Photovoltaic Power Generation and Smart Energy Conference & Exhibition, LONGi announced two groundbreaking technological breakthroughs at the Technology Innovation Session. Certified by the US National Renewable Energy Laboratory (NREL), the company's.