Testing at the Institute for Solar Energy Research (ISFH) in Hamelin, Germany, has confirmed that the conversion efficiency of N-type monocrystalline bifacial TOPCon cells developed at LONGi’s Cell R&D Center has reached 25.09%, the first time that the efficiency of a TOPCon cell based on a commercial size silicon wafer has exceeded 25%.
Based on its original innovative industrialized cell technology, the LONGi Cell R&D Center continually provides upgrades to PV industry technology. Indeed, in January 2019 the company achieved 24.06% front conversion efficiency for a monocrystalline bifacial PERC solar cell, a record which still stands.
“We are aiming to promote continuous upgrading of the PV industry, achieving higher efficiency and more sustainability,” commented Li Hua, Vice President and Head of the Cell R&D Center of LONGi Solar, adding that “Improving cell conversion efficiency is the main channel for PV technology development. Focusing on the development, mass production and incubation of advanced technologies and products, LONGi will continue to stay connected to cutting-edge technologies and lead technological change, in order to help achieve China’s ‘two carbon’ goals of reducing carbon dioxide emissions before 2030 and being carbon neutral before 2060.”
Between 2012 and 2020, LONGi invested close to RMB 8 billion ($1.2 billion) in R&D and accumulated a total of 1,001 authorized patents, enabling the company to maintain its position as a leader in PV industry innovation.
LONGi, founded in 2000, is a world leading solar technology organization. The company has had a long-term, unswerving commitment to monocrystalline technology, convinced, rightly, that its general adoption would bring about significant technological change for the whole PV industry.
With 15 manufacturing bases and more than 30 branches around the world, LONGi produces monocrystalline silicon wafers and modules, delivering solutions for distributed and ground mount power station systems, promoting the development of the global PV industry and driving energy transformation. The company’s shipments have been among the industry’s highest for a number of years and, in 2020, it became the first manufacturer to ship more than 20GW of modules in a year.
LONGi’s ongoing high investment in R&D is a significant contributory factor in its success and the company has been rapidly applying new technologies and processes to large-scale production, making important advances in cost control and efficient product innovation.
In 2020, LONGi became the first Chinese solar energy company to join the RE100, EV100 and EP100 initiatives, set up to promote zero-carbon solar and sustainable development.