Chinese solar panel manufacturer Longi today unveiled its latest solar panels during a press event at the ATP Masters in Shanghai.
The Hi-Mo X10 module series is based on Longi’s patented hybrid passivated back-contact (HPBC) cell technology and has an energy conversion efficiency of up to 24.6%.
The modules are available in four versions with a power rating of 650 W to 665 W. They measure 2,382 mm x 1,134 mm x 30 mm and weigh 33.5 kg. Their temperature coefficient is -0.26% per C.
The new products come with a 15-year product warranty and a 30-year linear performance warranty. The modules are designed for an annual linear degradation rate of 0.35% over a period of 30 years, with a maximum of 1.0% in the first year.
According to the manufacturer, these new panels have a 1% higher efficiency compared to their predecessors. They are built with 182mm n-type TaiRay wafers, touted as a breakthrough in silicon technology. These wafers reportedly improve resistance consistency, minimize metal impurities and provide superior mechanical strength.
The new products feature Longi’s HPBC2.0 technology, which features a unique bypass diode structure that allows blocked current to be independently rerouted when shaded, resulting in more than 70% less power loss compared to traditional TOPCon products, according to the manufacturer. Additionally, it reportedly reduces hotspot temperatures under shaded conditions, reducing overheating by more than 28% compared to conventional modules.
Another feature is the zero-busbar (0BB) design, which eliminates rails and grid lines on both the front and back of the panel. This design maximizes light absorption at the front and improves the efficiency of reflected light collection at the back.
During the event, Longi also announced that deliveries of its HPBC products exceeded 10 GW by the end of the first half of 2024.
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