LONGi

LONGi Green Energy Technology Co., Ltd. is a Chinese vertically integrated solar manufacturer and one of the world's largest producers of monocrystalline silicon wafers, solar cells, and modules. Founded in 2000 and headquartered in Xi'an, China, LONGi has played a defining role in driving down solar PV costs globally through scale and relentless R&D investment.

LONGi's core edge lies in monocrystalline PERC (Passivated Emitter and Rear Cell) technology, with aggressive advancement into TOPCon and heterojunction (HJT) architectures. Its Hi-MO module series delivers high-efficiency, bifacial output. LONGi also holds world-record solar cell efficiency achievements, reinforcing its reputation as a technology-first manufacturer in the global PV industry.

LONGi operates one of the largest solar manufacturing footprints globally, spanning wafer, cell, and module production. Its integrated capacity across China and international sites places it among the top two or three module manufacturers worldwide by volume, with continuous capacity expansion underway across the value chain.

LONGi sells modules and wafers across 150+ countries, with strong penetration in India's utility-scale solar tenders, Europe, the Americas, Southeast Asia, and the Middle East. In India, LONGi is an approved module supplier for many large IPPs and has a growing presence amid domestic content regulation dynamics.

LONGi deploys advanced automation across wafer slicing, cell processing, and module assembly lines, reducing human error and driving throughput. AI-powered quality inspection systems detect micro-defects in real time. Digital twin modelling optimises factory layouts and energy consumption. These investments underpin LONGi's ability to consistently lower production costs while maintaining industry-leading cell efficiency benchmarks.

LONGi consistently ranks among the top two global solar module manufacturers by shipment volume and is widely regarded as the technology leader in monocrystalline PV. Its combination of vertical integration, R&D intensity, and scale gives it durable cost and efficiency advantages over most peers.