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LONGi introduces 630W HPBC photovoltaic modules with 23.3% efficiency

Jun 03, 2024

Chinese solar module manufacturer LONGi has unveiled a new module series based on its proprietary hybrid passivated back contact (HPBC) cell technology.


The company has yet to explain exactly what HPBC is, but it is believed to be an extension of p-type interdigitated back-contact (IBC) technology that combines the structural advantages of PERC, TOPCon, and IBC solar. Additionally, BC technology can be combined with p-type wafers, for which Longi has substantial production capacities, giving it an advantage over the more common IBC technology.

The new Hi-MO X6 Scientist panel is available in three versions with power output ranging from 620 W to 630 W and power conversion efficiency spanning from 23.0% to 23.3%. The open-circuit voltage is between 52.72 V and 53.02 V and the short-circuit current is between 14.93 A and 15.07 A.


The modules have a temperature coefficient of -0.28%/C and a maximum system voltage of 1,500. Their size is 2,382 mm x 1,134 mm x 30 mm and their weight is 28.5 kg. They also feature IP68 junction boxes, an anodized aluminum alloy frame, and 3.2 mm coated tempered glass.

The new products come with a 25-year linear power output warranty, with the 25-year end power output being guaranteed to be no less than 89.4% of the nominal output power.

As an officially authorized distributor of LONGi, Rongstar continues to support LONGi's technological innovation and vigorously promotes HBPC. To learn more about LONGi's products, please click:

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