Established three R&D centers for silicon wafers, cells, and modules, and established strategic partnerships with research institutes such as the University of New South Wales and the National Silicon Materials Laboratory of Zhejiang University to strengthen cooperation between industry, universities, and research institutes, and provide technical support for technological innovation, and was honored with the title of National Enterprise Technology Center.
548 R&D personnel

R&D backbone personnel accounted for 2.6% of the total number of employees in the company.

After long-term talent recruitment and optimization, we have established a high-quality R&D team with high degree of specialization and strong sense of innovation, and have industry-stream technical experts as the leader of scientific research.
2012 - 2018 cumulative
investment of R&D:
$ 523.4 million
Based on the vision of the world's most valuable solar technology company, LONGi Group adheres to the principle of technology-driven productivity, and has adhered to high R&D investment for several years. The R&D revenue of LONGi has remained at 5-7%, leading the industrial level. The annual R&D investment is 1.108 billion yuan. In 2018, the R&D investment was 1.231 billion yuan. From the 2012 listing year to the end of 2018, LONGi’s accumulated R&D investment was 3.695 billion yuan, ranking first in the industry.
As of the end of December 2018, LONGi Group had obtained 526 kinds of granted patents. Continuous breakthroughs in monocrystalline growth, silicon wafer cutting and new cells assembly technology, leading the development of the global monocrystalline technology. At present, LONGi has the international leading core technology advantages of perfect lattice monocrystalline silicon growth, high loading speed, monocrystalline modification, low-fat PERC cell and bifacial power generation. Among them, the positive conversion efficiency of monocrystalline PERC cell broke the world record six times in two years, reaching 24.06%; the conversion efficiency of 60-type high-efficiency PERC module broke the world record three times in one year, reaching 20.83%.