LONGi Solar: manufacture of monocrystalline solar panels

LONGi Solar is a leading manufacturer of solar panels and photovoltaic solutions, founded in China in 2000. Its specialties include the production of PERC (Passivated Emitter and Rear Cell) monocrystalline cells and bifacial panels. Its solutions are used in a variety of applications, including residential, commercial and large-scale installations.

LONGi Solar products

LONGi Solar produces photovoltaic solar panels, their components (P or N type wafers), integrated solutions (e.g. a solar roof) and electrolyzers.

Photovoltaic solar panels

LONGi Solar offers monocrystalline photovoltaic solar panels, as well as photovoltaic solar panels that can make use of a number of enhancements: bifacial panels, half-cut cells, gallium doping of wafers, PERC cells and Tiling Ribbon Technology.

This is how the company presents its offer:

“LONGi offers three series of solar modules: Hi-MO 4, Hi-MO 5, Hi-MO 4m is a monofacial product of the Hi-MO 4 series, and is mainly used on the roofs of industrial, commercial and residential buildings. Hi-MO 4 bifacial modules are mainly used in ground-mounted power plants. Hi-MO 5 bifacial modules are mainly intended for large-scale ground-mounted power plants.”

Summary table :

RangeModelPui. (W)EfficiencyNOCTCoeff °C(1)(2)(3)(4)(5)DimensionsTechnology
Hi-MO5LR5-72HBD-550M55021,30%450,3412300,4584,95%Bi2,28×1,13Bifacial ; half-cut ; Ga-doped ; TRT
Hi-MO5mLR5-54HPH41021,80%450,3412250,5584,80%Mono?1,72×1,13PERC; Ga-doped; TRT
Hi-MO4mLR4-69HIH-380M38020,90%450,3412250,5584,80%Mono?1,75×1,04half-cut; Ga-doped
Hi-MO5mLR5-72HIH-555M55521,50%450,3412250,5584,80%Mono?2,28×1,13half-cut ; Ga-doped ; TRT
(1): Manufacturing warranty; (2): Performance warranty (3): Maximum performance degradation after 1st year; (4): Estimated 25-year performance; (5): Mono or bifacial; NOCT = (Nominal Module Operating Temperature)

Waffers

LONGi Solar offers N- and P-type monocrystalline waffers.

Turnkey solutions (BIPV, Building-integrated Photovoltaics)

LONGi offers complete solutions for residential photovoltaic production (eHome), for parking lots (Park), for roofs in general (Roof) and, with vertical panels, for walls.

Electrolyser

More original, the company also offers an alkaline electrolyzer capable of operating at 16 bars, with an efficiency of 3.9 to 4.4 kWh/Nm3 and 200,000h of operation. There are 3 models: LHy-A800, LHy-A1000” and LHy-A1500, the number corresponding to the hourly production capacity.

LONGi Solar progress, financing and chronology

Founded in 2000 by Li Zhenguo, Li Chunan, Li Wenxue and Zhao Gang in Xi’an, China, LONGi Solar has become a leading figure in the solar industry. The company specializes in the production of high-efficiency monocrystalline solar panels and silicon wafers, offering innovative solutions for a sustainable energy future.

In 2012, the company went public on the Shanghai Stock Exchange, and in2014 launched its first monocrystalline solar module production plant.

In 2017, LONGi Solar reached an annual production capacity of 10 GW for silicon wafers, consolidating its position as one of the world’s leading manufacturers of solar materials. In the same year, the company announced a $1.1 billion investment to build a 5 GW solar panel manufacturing plant in China. In 2019, the company launched the Hi-MO4 solar module, featuring half-cut bifacial solar cell technology and a conversion efficiency of up to 20.8%.

By 2021, the company would have had sales of $8.4 billion, net profit of $1.32 billion and assets of $14.2 billion.

Along with Jinkgo Solar, it is one of the world’s leading Chinese manufacturers.