About the LONGi 610w Bi-facial Hi-MO Solar Panel
The LONGi 610w Bi-facial Hi-MO Solar Panel is a high‑performance module designed for utility‑scale and large commercial solar PV installations. It delivers up to 610 W of nominal power output, features a module efficiency of about 22.6%, and incorporates bifacial (dual‑side) technology to harvest sunlight both from the front and the rear, thereby increasing total energy yield.
The panel uses advanced cell technology (HPDC—Hybrid Passivated Dual‑Cell) and half‑cell configuration to reduce losses and improve performance under real‑world conditions.
Detailed Features
- High Nominal Power (610 W):
- With a rated output of 610 W under standard test conditions (STC), fewer panels are needed to reach a given system capacity compared to lower‑wattage modules.
- High Module Efficiency (~22.6%):
- The panel converts approximately 22.6% of incident sunlight into electricity under ideal conditions.
- Bifacial Design with Rear‑Side Gain:
- The bifacial module accepts light from the back side (reflected from ground or structures) improving total energy harvest by up to ~80% bifaciality ratio (depending on ground reflectance/albedo).
- Advanced Cell Technology (HPDC & Half‑Cell):
- The HPDC and half‑cell design reduce current per cell, minimise resistive losses, lower hot‑spot risk, and improve reliability under shading or partial‑load conditions.
- Excellent Temperature and Load Performance:
- The temperature coefficient of Pmax is around –0.28%/°C, meaning the module’s output decreases less with rising temperature than many standard modules.
- Durable Build & Long Warranty:
- The module features dual glass or glass + backsheet options, anodised aluminium framing, IP68 rated junction box, and full system voltage up to 1,500 V DC in many configurations.
- Warranty: Product warranty around 12 years; performance warranty up to 30 years.
Technical Specifications
Mechanical Parameters
- Cell Orientation: 144 (6×24)
- Junction Box: IP68, three diodes
- Output Cable: 4mm², +400, -200mm/±1400mm
- Glass: Dual glass. 2.0±2.0mm semi-tempered glass
- Frame: Anodized aluminium alloy fray
Electrical Characteristics
- Module Type: LR7-72HGD-610M
- Testing Condition: STC
- Maximum Power (Pmax.): 610W
- Open Circuit Voltage: 52.44V
- Short Circuit Current: 14.55A
- Voltage at Maximum Power: 44.34V
- Current at maximum Power: 13.76A
- Module Efficiency: 22.6%
Operating Parameters
- Operational Temperature: -40°C~+85°C
- Power Output: Tolerance: 0~3%
- Voc and Isc Tolerance: ±3%
- Maximum System Voltage: DC1500C (IEC/UL)
- Maximum Series Fuse Rating: 30A
- Nominal Operating Cell Temperature: 45±2°C
- Protection: Class: Class II
- Bifaciality: 80±5%
- Fire Rating: UL type 29, IEC Class C
Mechanical Loading
- Front Side Maximum Static Loading: 5400Pa
- Rear Side Maximum Static Loading: 2400Pa
- Hailstone Test: 25mm Hailstone at the of 23m/s
Temperature Ratings (STC)
- Temperature Coefficient of Isc: +0.045%/°C
- Temperature Coefficient of Voc: -0.230%/°C
- Temperature Coefficient of Pmax: -0.28%/°C
Applications
- Utility‑scale solar farms – Where large capacity and high efficiency reduce land and BOS costs.
- Commercial rooftop installations – Where area is limited and higher wattage modules maximise output.
- Ground‑mounted solar systems with rear‑side reflection – To leverage bifacial gain from albedo surfaces (white roofs, reflective ground cover).
- High‑performance PV systems in hot climates – Low temperature coefficient supports stable output in high ambient temps.