Description
Longi Solar has released a completely a new series of Hi-MO 9 bifacial photovoltaic modules and presented the «hybrid passive back-contact» cell technology» HPBC 2.0, which led to a dramatic increase in the efficiency of solar panels.
As for silicon cells, HPBC 2.0 technology uses its own high-quality N-type TaiRay LONGi silicon wafers, which optimize and reduce solar cell degradation, efficiency potential, and resistance concentration.
The following technology is also used: BC-Cell (Back Contact Cell) — is a method of manufacturing solar panels in which all electrical contacts are located on the back side of the cell. This significantly increases efficiency and improves the appearance of the panels. Since the current-carrying paths are on the back side, the front surface of the solar cell is completely free of metal conductors. This increases sunlight absorption and improves efficiency.
Monocrystalline bifacial solar panel LR7-72HYB-650M It is used in grid-connected, hybrid, or off-grid solar power plant systems. It has a power output of 650 W and dimensions of 2382 × 1134 × 30 mm, which is a very good performance for 2025. The solar panel's efficiency is very high, reaching as much as 24.1 %, ...which, when paired with an inverter, allows it to be used effectively to generate revenue under the «green tariff» program or for off-grid power supply.
The model was built using the best materials and components available on the photovoltaic market. 144 high-quality silicon cells They are mounted in a 30-mm-thick composite alloy frame, arranged in 24 rows. By converting solar energy into direct current with a maximum voltage of 44.87 V and a current of 14.49 A, they generate minimal heat, thereby increasing the efficiency of each cell. The panel’s surface is reliably protected by double-layered 2.0+2.0-millimeter tempered glass.
The solar panel withstood a hailstorm with 25-mm hailstones and wind speeds of 23 m/s. The structure is capable of withstanding snow loads of up to 5,200 Pa and wind loads of up to 2,400 Pa. It is resistant to salt spray, ammonia, and dust, as confirmed by independent testing.
The device's IP68 protection rating means that it is completely protected against dust ingress and can withstand brief immersion in water to a depth of up to 1 meter. Accidental contact between the electrical components and a person is prevented.
The model is certified under the ISO 9001:2008 and ISO 14001:2004 management systems. Compliance with industry standards IEC 61215 and IEC 61730 ensures the high quality and safety of the equipment. TÜV Rheinland conducted an independent conformity assessment.
The device has larger dimensions of 2382 × 1134 × 30 mm and weighs only 33.5 kg.
The manufacturer provides a 12-year warranty on the parts and components of the photovoltaic module. The warranty period for maintaining linear output performance is 30 years, and at the end of this period, the panel’s power output will be no less than 88.85%. That is, The panel's degradation over 30 years of operation is only 11.51 TP3T.
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