LONGi

LONGi Green Energy Technology Co., Ltd. is a Chinese multinational and the world's largest solar technology company by shipment volume. Founded in 2000 and headquartered in Xi'an, China, LONGi specialises in monocrystalline silicon wafers, solar cells, and high-efficiency photovoltaic modules, serving utility, commercial, and residential segments globally.

LONGi's core edge lies in monocrystalline PERC, Hi-MO series modules, and its breakthrough BC (Back Contact) cell technology. Its HPBC and hybrid passivated back-contact cells consistently set world efficiency records. The company leads in wafer slicing precision, thin-wafer technology, and bifacial module design, delivering superior energy yield per square metre.

LONGi operates one of the world's largest vertically integrated solar manufacturing ecosystems, spanning silicon ingots, wafers, cells, and modules. Its combined global manufacturing capacity across China and international facilities ranks among the highest in the industry, with continuous capacity expansion underway across multiple provinces and overseas locations.

LONGi sells modules across 150+ countries, with strong penetration in India's utility-scale sector despite BCD headwinds. It partners with major Indian IPPs and EPC players. Globally, it commands significant share in Europe, Middle East, Latin America, and Southeast Asia through direct sales, distributors, and project-level procurement.

LONGi deploys AI-driven quality inspection, robotic wafer handling, and machine-vision defect detection across its production lines, dramatically reducing human error and reject rates. Digital twin simulations optimise factory throughput and energy consumption. Advanced automation in cell and module lines enables high consistency at scale, supporting its relentless cost-per-watt reduction strategy.

LONGi consistently ranks among the top two global solar module suppliers by shipment volume. It differentiates on technology efficiency leadership and vertical integration depth, though faces intense pricing pressure from peers and geopolitical headwinds in Western markets requiring strategic manufacturing diversification.