On July 14, LONGi Green Energy held the 2026 PV and Energy Storage Innovation Technology Conference at Shanghai Jiao Tong University, unveiling the "Technology Forest" concept. The company showcased multiple innovations, including ACM (Nano-Alloy Matrix Contact) technology, integrated conductive backsheet technology, shingling technology, hidden busbar technology, temperature-controlled alloy interconnection technology, smart module technology, LONGi One OS technology, and Tri-Protection Pro modules. It also announced that its independently developed crystalline silicon-perovskite tandem solar cell conversion efficiency has surged to 35.5%, once again setting a world record.
LONGi Green Energy's ACM (Nano-Alloy Matrix Contact) battery project has entered mass production. As an independently developed innovative grid line technology, ACM combines the superior properties of multiple metals through scientific proportioning and surface-level nano-antioxidation technology, achieving a leap in grid line conductivity. This results in a 0.2%–0.3% increase in mass production conversion efficiency, with a maximum power output of 672 watts. The welding area at the busbar position is doubled, and combined with the unique "I"-shaped welding structure of BC (Back Contact) batteries, the risks of cold soldering and broken grid lines are essentially eliminated. The nano-antioxidation technology effectively prevents oxidation caused by contact between air, moisture, and metal, achieving anti-aging performance and high power generation efficiency.
The integrated conductive backsheet technology replaces traditional "point contact" welding with "full-area surface contact" using metal foil. Compared to conventional ribbons, the current transmission cross-sectional area is increased by over 85%, cell stress is reduced by 60%, and moisture vapor transmission rate is lowered by 90%. Due to the reflective effect of the metal foil, long-wavelength light penetrating the silicon wafer is reflected back to the cell for secondary absorption, boosting the power of a single module by an additional 3–5 watts.
The shingling technology employs a seamless arrangement with precise overlapping of 0.4 mm cell edges, increasing the effective power generation area of the module by 2%. The hidden busbar technology further increases the effective light-receiving area of the module by 1.1%. The smart module technology equips each module with an independent maximum power point tracking module, boosting power generation by 5%–30%, and features active and passive "dual-mode" rapid shutdown functionality, enabling automatic millisecond-level shutdown in case of module anomalies. The smart module technology is paired with the "LONGi Smart PV" app, allowing real-time monitoring of module operating data in the power station, enabling rapid positioning of individual modules and improving operation and maintenance efficiency.
LONGi One OS technology is a new-generation intelligent integrated energy management platform designed for PV-storage-charging-load scenarios, equipped with an AI agent. It integrates multi-dimensional parameters such as photovoltaic power generation forecasting, load forecasting, weather forecasting, and user historical electricity load to maximize energy storage asset returns. The platform features a self-developed AI agent that provides AI usage guidance, fault diagnosis, and early warnings, reducing the operation and maintenance threshold by 90%.