LONGi 750W Hi-MO 9 LR9-66HYD-750M Bifacial Solar Panel – 24.14% Efficiency

LONGi 750W Hi-MO 9 LR9-66HYD-750M Bifacial Solar Panel

The LONGi 750W Hi-MO 9 LR9-66HYD-750M Bifacial Solar Panel is designed for high-capacity solar power generation in commercial, industrial and utility-scale projects. Manufactured under the LONGi Hi-MO 9 series, this module combines HPBC 2.0 cell technology, TaiRay wafer technology and a bifacial dual-glass construction to support efficient solar energy production.

With a rated power output of 750W and a stated module efficiency of 24.14%, the panel can help project developers generate substantial solar power while making effective use of installation space. Its bifacial construction allows the rear side to capture reflected sunlight, potentially increasing total energy generation depending on ground reflectivity, mounting height, row spacing and other site conditions.

Advanced HPBC 2.0 and TaiRay Wafer Technology

The LONGi Hi-MO 9 solar panel uses HPBC 2.0 technology combined with TaiRay wafer technology. The supplied product information also identifies an OBB (One Busbar) design intended to improve light utilization and support power output under varying irradiation conditions.

These technologies make the LR9-66HYD-750M an option for solar project designers seeking high-output modules for larger photovoltaic arrays. Actual energy production depends on sunlight availability, panel orientation, shading, operating temperature and system design.

High Power Output and Electrical Performance

The panel provides a rated maximum power output of 750W under Standard Test Conditions (STC), with a listed maximum power output of 570W under Nominal Operating Cell Temperature (NOCT) conditions.

Its key STC electrical specifications include:

• Maximum power: 750W

• Module efficiency: 24.14%

• Voltage at maximum power: 40.98V

• Current at maximum power: 18.30A

• Open circuit voltage: 49.72V

• Short circuit current: 19.12A

The module supports a maximum system voltage of 1500V DC under IEC conditions and has a maximum series fuse rating of 35A. These values are important when selecting compatible inverters, designing string configurations and determining electrical protection requirements. The complete system must be designed according to the inverter manufacturer's limits and applicable electrical standards.

Bifacial Dual-Glass Construction

The LONGi 750W bifacial panel features dual 2.0mm semi-tempered glass, an anodized aluminium alloy frame and an IP68-rated junction box with three diodes. Its bifacial design allows both sides of the module to contribute to electricity generation when suitable light reaches the rear surface.

For commercial rooftops and ground-mounted solar farms, project designers should consider mounting structure design, rear-side clearance, surface reflectivity, shading and ventilation to make effective use of bifacial generation.

Mechanical Strength and Environmental Performance

The panel has a listed front-side maximum static loading capacity of 5400Pa and rear-side capacity of 2400Pa. It is specified for an operating temperature range of -40°C to +85°C and includes a hailstone resistance specification of 25mm at a test speed of 23m/s.

These specifications can help engineers assess the module for different installation environments. Actual project suitability should be evaluated against local wind loads, mounting conditions, building requirements and site-specific weather risks.

Long-Term Power Warranty

The supplied product information states a 30-year power warranty, first-year power degradation of no more than 1%, and subsequent linear degradation of 0.05% per year. The separate product warranty duration is not specified in the provided information. Buyers should confirm the applicable warranty document and local warranty terms before purchasing.

Applications in Bangladesh

The LONGi 750W Hi-MO 9 panel may be considered for industrial rooftops, commercial buildings, factories, ground-mounted solar farms and other large-scale photovoltaic projects in Bangladesh. Its high rated output can help reduce the number of modules needed for a target DC capacity compared with lower-wattage modules, subject to the system's design requirements.

Before installation, verify roof or ground structure capacity, inverter compatibility, string voltage and current limits, mounting arrangements, cable specifications and electrical protection. For a properly engineered solar project, the LONGi LR9-66HYD-750M provides a high-output bifacial module option for long-term solar energy generation.