LONGi 550W Solar Panel Overview
The LONGi 550W Solar Panel model LR5-72HBD-550M is an advanced bifacial solar module designed to deliver outstanding energy efficiency and reliability in a variety of conditions. With a rated power output of 550W and a maximum module efficiency of 21.3%, this panel incorporates Gallium-doped PERC technology to minimize Light Induced Degradation (LID) and ensure long-term performance. The M10 Gallium-doped Wafer and 18-busbar Half-Cut Cell technology further enhance its energy yield, especially in environments with low light and high temperatures. The robust construction, including a 3.2mm tempered dual-glass structure and an anodized aluminum alloy frame, ensures the panel's durability against environmental stressors such as hailstorms and heavy snow. The LONGi 550W Solar Panel is ideal for large-scale commercial projects, utility-scale solar farms, and residential rooftop installations.
LonGi 550 Watt Solar Panel Core Advantages
- Optimized Electrical Parameters: Designed to operate at a working current of about 13A, perfectly adapted to mainstream string inverters, ensuring efficient energy conversion.
- Gallium-doped Technology: Overcomes LID degradation, guaranteeing the long-term power generation and reliability of the module.
- Bifacial Energy Yield: Additional power generation from the backside of bifacial modules increases overall energy yield, verified by customers and third-party testing organizations.
- Optimized Module Size: Large-format modules with M10 wafer size use dual-glass and frame packaging to ensure module strength.
- Smart Module Packaging and Logistics: Solutions designed to achieve high reliability, low-cost transportation, and logistics.
Electrical Performance Parameters (STC Test)
| Module Type | LR5-72HBD-545M | LR5-72HBD-550M | LR5-72HBD-555M |
|---|---|---|---|
| Maximum Power (Pmax/W) | 545 | 550 | 555 |
| Open-circuit Voltage (Voc/V) | 49.65 | 49.80 | 49.95 |
| Short Circuit Current (Isc/A) | 13.92 | 13.99 | 14.05 |
| Peak Power Voltage (Vmp/V) | 41.80 | 41.95 | 42.10 |
| Peak Power Current (Imp/A) | 13.04 | 13.12 | 13.19 |
Electrical Performance Parameters (NOCT Test)
| Module Model | LR5-72HBD-545M | LR5-72HBD-550M | LR5-72HBD-555M |
|---|---|---|---|
| Maximum Power (Pmax/W) | 407.4 | 411.1 | 414.8 |
| Open-circuit Voltage (Voc/V) | 46.68 | 46.82 | 46.97 |
| Short Circuit Current (Isc/A) | 11.23 | 11.29 | 11.34 |
| Peak Power Voltage (Vmp/V) | 39.00 | 39.14 | 39.28 |
| Peak Power Current (Imp/A) | 10.45 | 10.51 | 10.56 |
Load Capacity
| Specification | Details |
|---|---|
| Maximum Static Load on the Front (such as snow and wind) | 5400 Pa |
| Maximum Static Load on the Back (such as wind) | 2400 Pa |
| Hail Test | Diameter 25 mm, impact speed 23 m/s |
Mechanical Parameters
| Specification | Details |
|---|---|
| Layout | 144 (6×24) |
| Junction Box | Split junction box, IP68, 3 diodes |
| Weight | 31.8 kg |
| Size | 2278×1134×30 mm |
| Packaging | 36 pcs/pallet, 180 pcs/20'GP, 720 pcs or 576 pcs (only for USA)/40'HC |
Operating Parameters
| Specification | Details |
|---|---|
| Power Output Tolerance | 0~3% |
| Maximum System Voltage | 1500V DC |
| Maximum Series Fuse Rating | 30A |
| Nominal Operating Cell Temperature (NOCT) | 45°C ± 2°C |
| Bifaciality | 70% ± 10% |
| Fire Rating | UL Type 29, IEC Class C |
Temperature Coefficient (STC Test)
| Specification | Details |
|---|---|
| Temperature Coefficient of Short Circuit Current (Isc) | +0.050%/°C |
| Temperature Coefficient of Open Circuit Voltage (Voc) | -0.265%/°C |
| Temperature Coefficient of Peak Power (Pmax) | -0.340%/°C |
Additional Value
- 30-Year Power Warranty: Guarantees a linear power degradation of no more than 0.45% per year, ensuring at least 84.95% of the original power output after 30 years.
- Extraordinary Reliability Against Hailstorms: Advanced module technology ensures the panel's resilience against harsh weather conditions, including hailstorms.
- Globally Validated Bifacial Energy Yield: This module has been globally validated for its high bifacial energy yield, contributing to greater overall power generation.
Applications
The LONGi 550W Solar Panel is highly versatile and suitable for a wide range of applications, including:
- Commercial Solar Farms: Ideal for large-scale solar installations where maximizing energy output is critical.
- Utility-Scale Projects: Provides reliable performance for utility-scale solar power plants.
- Residential Rooftop Systems: Perfect for homeowners looking to reduce their energy bills and increase their sustainability efforts.
- Off-Grid Systems: Delivers consistent power in remote areas where grid connection is not available.
Warranty and Certifications
- 12-Year Warranty: Covers materials and processing defects.
- 30-Year Power Output Warranty: Ensures long-term reliability and performance.
- Certifications: IEC 61215, IEC 61730, UL 61730, ISO 9001, ISO 14001, ISO 45001.
FAQs
-
What are LONGi's module products and what applications are they suited for?
LONGi’s Hi-MO 5 series includes both bifacial and monofacial modules. The 54-cell Hi-MO 5m is primarily used on industrial, commercial, and residential roofs. For large ground-mount power plants, both bifacial and monofacial Hi-MO 5 modules with 72-cell are designed. -
What are the advantages of Hi-MO 5 in ground-mount power plants?
Because of its high-power rating and efficiency, Hi-MO 5 can be more cost-effective in terms of BOS. By increasing the power of a single string and thereby increasing the plant’s DC: AC ratio when using string inverters, Hi-MO 5 reduces the cost of electrical equipment, thus lowering the LCOE. In addition, Hi-MO 5 can reduce the cost of module logistics due to its higher utilization of container space. -
Why does LONGi choose 182 mm wafer size in the design of Hi-MO 5?
LONGi analyzed various boundary conditions throughout the solar module lifecycle, including production feasibility, module reliability, application compatibility, transportation, and manual installation. This analysis led us to conclude that 182mm silicon wafers and modules offer the optimal configuration for large-format modules. We believe the 182mm wafer size minimizes mechanical load and reliability concerns. Further size increases are unlikely to provide significant cost reductions in manufacturing or system installation, but rather could introduce reliability risks. Additionally, 182mm modules maximize container utilization during transportation, minimizing transportation costs. -
What type of module is better for my application, monofacial or bifacial?
Bifacial modules are slightly more expensive than monofacial modules but can generate more power under the right conditions. When the rear side of the module is not blocked, the light received by the rear side of the bifacial module can significantly improve energy yield. In addition, the glass-glass encapsulation structure of the bifacial module has better resistance to environmental erosion by water vapor, salt mist, etc. Monofacial modules are more suitable for installations in mountain regions and distributed generation rooftop applications. -
What are other advantages of LONGi bifacial modules?
LONGi took the lead in working with domestic and foreign institutions and customers to carry out empirical testing of bifacial modules for PV power plants, systematically studying the power generation mechanisms of bifacial modules. LONGi also leads the industry in bifacial module shipments while providing customers with valuable reference data and technical expertise. -
How does LONGi guarantee module supply?
LONGi has the largest module production capacity in the industry, with more than 120 GW in its integrated capacity network fully guaranteeing the supply of modules. In addition, the production network facilitates the global distribution of modules with the help of land transportation, railway transportation and sea transportation. -
How does LONGi ensure module product quality?
LONGi launched Life-cycle standards to guarantee module quality throughout its entire life cycle. LONGi's integrated capacity layout ensures the traceability of each module, and our highly automated production lines feature end-to-end inspection and analysis processes to ensure that each module meets the highest quality standards. We select module materials according to the highest standards, requiring that all new materials undergo extended qualification and reliability tests before being incorporated into our products. Third-party labs, such as RETC and PVEL, have ranked our modules among the highest quality products on the market.
Longi's 550W Solar Panel features a high-efficiency Hi-MO module with a power output of 540-560 watts, suitable for small-scale solar systems.
Here's what sets LonGi 550W Solar Panels apart: Optimized electrical parameters with a working current of about 13A, perfectly compatible with mainstream inverters. Large-format M1O wafer modules feature dual-glass and frame packaging for enhanced module strength. Our gallium-doped technology overcomes degradation issues and ensures long-term power generation. Smart module packaging solutions ensure high reliability at an affordable cost. Plus, our bifacial energy yield increases overall energy output, backed by customer and third-party testing.
LonGi's Hi-MO 5 solar panel features exceptional reliability, advanced technology, and superior efficiency. It boasts a gallium-doped wafer, half-cut cell, and bifacial energy yield for long-term performance. The module comes with a 42-year warranty on materials and processing, as well as certifications from EC61215, IEC61730, UL61730, ISO14001:2015, and ISO45001:2018.
LONGi 550W Solar Panel (Hi-MO 5 540-560 Watt). Key Features: Hi-MO 5 technology for high-efficiency power output; 21.7% module efficiency; maximum power 540-560 watts; 144-cell orientation; junction box with three diodes; anodized aluminum alloy frame; dual-glass construction with tempered glass and heat-strengthened glass. Electrical Characteristics: STC: AML 5.1 @ 25°C, NOCT: AML 5.8 W @ 20°C; maximum power Pmax 540-560 watts; open circuit voltage (OCV) 49-50 volts; short circuit current (ISC) 13.85 amps. Operating Parameters: mechanical loading, operational temperature range -40°C to +85°C; front side maximum static loading 54 kPa, rear side maximum static loading 24 kPa.
