Longi Solar Panel Review

LONGi Solar was set up in 2000 and is completely claimed by the LONGi Group situated in Xi'an China with assembling offices in Malaysia, Vietnam, India, and all through China. LONGi has developed quickly in the course of the recent 5 years to be delegated the world's biggest solar organization dependent on sales income and market capital in 2020 with an unbelievable yearly creation limit of over 110GW, including 25+ GW for panels, 30 GW for cells and more than 55 GW for wafers. LONGi Solar produces only monocrystalline panels, and the organization was to a great extent responsible for driving the solar industry back towards the more proficient monocrystalline cells after polycrystalline cells had ruled the market since 2012 because of lower production costs. To accomplish this progress, LONGi Solar began constructing new facilities and altogether increase the creation of monocrystalline wafers to supply the whole solar industry with cheaper mono-Si wafers and cells. 

New Solar Cell Efficiency Records 

Alongside the gigantic assembling area, LONGi Solar has a tremendous innovative team and has held various cell productivity records in five years. Expanding on this, the most recent couple of months have seen LONGi's R&D group accomplish a great number of new efficiency records dependent on the high-level N-type TOPcon cell tech. It is anticipated this more productive cell engineering will gradually overwhelm the generally used PERC cell technology in the following 3 to 4 years. 

Superior N-Type Cells 

The latest report is the cutting edge Hi-MO N panel which utilizes LONGi's new N-type (TOPCon) cells based on a restrictive elite cell innovation to accomplish up to 22.3% effectiveness and produce up to 570W. Numerous exceptional makers, like LG, REC, and SunPower, have utilized the costly N-type silicon cells for a long time, however, presently LONGi, alongside a few other Chinese makers like Jinko Solar, are creating and refining new N-type structures and are set to fundamentally increase the creation of these more productive cells to drive down the expense and further increase effectiveness. 

Longi Solar Panels 

·        Hi-MO 4m - 60 cell 

·        Hi-MO 4m - 72 cell 

·        Hi-MO 5 - 66 cell 

·        Hi-MO 5 - 72 cell 

·        Hi-MO N – Coming soon 

LONGi Solar Hi-MO 4 scope of panels are based on the most recent monocrystalline PERC half-cut cell innovation including the range of upgrades to reach up to 20.9% efficiency. The Hi-MO 4m, available in 60-cell and 72-cell designs, are based on the new gallium-doped silicon portrayed exhaustively beneath, which builds execution and diminishes the impact of light-induced debasement. In contrast with normal P-type silicon which has a yearly degradation rate of 0.55% to 0.7%, the remarkable Gallium-doped silicon diminishes this to around 0.45% each year coming about in simply 11% to 13% loss in effectivity following 25 years which is similar in execution to the more costly N-type cells. 

Hi-MO 4 Panel Specifications 

·        Monocrystalline PERC gallium-doped silicon cells 

·        350W to 380W Power rating 

·        20.9% most extreme panel productivity 

·        Half-cut cell design with 9 busbars (MBB) 

·        Standard 166mm M6 wafer 

·        12-year guarantee 

·        25-year execution guarantee 

·        84.8% excess force following 25-years 

Hi-Mo 5 Series Panels 

LONGi's Hi-MO 5 range of huge configuration panels are intended for business and utility-scale establishments. Like the Hi-MO 4, these panels are likewise based on the most recent monocrystalline PERC cells including multi-busbar (MBB) half-cut cells. The Hi-MO 5, accessible in 66-cell and 72-cell forms additionally utilize the new gallium-doped silicon which diminishes the impact of light-induced degradation from 0.6% to around 0.45% each year coming about in simply 11% to 12% in 25 years in addition to the underlying 2% in the primary year. 

Hi-MO 5 Panel Features 

·        Monocrystalline PERC gallium-doped silicon cells 

·        475W to 540W Power rating 

·        21.3% greatest panel proficiency 

·        Half-cut cell design with 9 busbars and keen patching 

·        Bigger 182mm M10 wafer 

·        12-year guarantee 

·        30-year execution guarantee 

·        84.9% leftover force following 30-years 

Gallium-Doped Silicon 

LONGi Solar collaborated with Shin-Etsu Chemical Co in mid-2020 to mass-produce another gallium-doped silicon cell which is proclaimed to lessen the impacts of light-induced Degradation (LID) in like manner P-type PERC silicon. LID is a well-known process that causes a 2-3% loss of efficacy during the initial few hundred hours of activity because of the trace quantities of oxygen leftover during the assembling interaction of normal Boron-doped silicon. Over the remaining existence of the panel, the losses because of LID drop essentially to around 0.5% to 0.8% each year relying upon the quality and virtue of the translucent silicon. By far most solar panel producers use boron-doped P-type silicon wafers which implies the presentation guarantee is regularly around 82% preserved force following 25 years of utilization. With the expanded steadiness of Gallium-doped silicon, LONGi can diminish the LID impacts over the primary year to 2% and under 0.5% each year for the leftover existence of the panel bringing about the panel operating near 85% of the initial energy rating following a more extended long-term period. 

Intelligent Soldering Technology 

A few producers utilizing the now normal multi-busbar (MBB) tech have created ways to lessen the holes between cells to expand surface region and boost effectiveness. LONGi Solar has taken this to another level by creating what it has named 'Intelligent Soldering technology' which utilizes an exceptional triangular formed micro busbar with smoothed finishes to both lessen the inter-cell space and improve efficiency. The triangular strip expands the absorption of daylight on the front side of the cell and accomplishes a more stable cell interconnection with a 0.6mm small gap. Testing has shown Smart Soldering innovation can support effectiveness by 0.3% in correlation with regular MBB innovation. 

Conclusion

LONGi Solar has arisen as the biggest solar producer as well as presently one of the main engineers of new inventive solar cell innovation. With the immense production capacities, LONGi isn't just driving down expenses of cutting edge wafers and cells, it is also delivering a scope of entirely inexpensive, reliable Solar Panels for residential and business applications. With the record-breaking accomplishments and new cell advancements, for example, Gallium-doped silicon and Smart soldering, it will be extremely intriguing to perceive what other new creative technologies LONGi designs to further develop execution and unwavering quality throughout the following few years.