Description
The LONGi Hi-MO 7 HGD N-Type 580W Bifacial Solar Panel Series represents LONGi’s flagship generation of high-efficiency photovoltaic modules engineered for utility-scale and commercial rooftop setups.
Combining N-Type TOPCon technology with HPDC (High Performance Dual-Cell) architecture, this module minimizes internal resistive losses and eliminates traditional Light-Induced Degradation (LID). Its dual-glass bifacial construction absorbs direct solar irradiance on the front glass while capturing reflected ambient light on the rear side, significantly increasing overall system energy production.
In Bangladesh, where commercial electricity rates are high and summer temperatures often reduce standard panel performance, the LONGi Hi-MO 7 series provides an exceptional solar power solution. Its ultra-low temperature power coefficient (-0.28%/°C) ensures stable electricity output during peak heat hours, making it ideal for net-metering installations under local utility guidelines.
Key Features
- N-Type TOPCon & HPDC Cell Tech: Advanced N-Type cell formulation provides immunity to LID/LeTID and delivers up to 22.5% module efficiency.
- High Output Power (580W): High power density maximizes wattage installation capacity on limited rooftop and land areas.
- Bifacial Dual-Glass Construction: 2.0mm + 2.0mm heat-strengthened glass structure yields up to 25% extra power harvest from rear-side illumination.
- Low Temperature Power Coefficient (-0.28%/°C): Maintains high conversion efficiency even under high ambient summer operating heat.
- 1500V DC Maximum System Voltage: Designed for high-voltage commercial string inverters, lowering balance-of-system (BOS) wiring and combiner box costs.
- IP68 Sealed Junction Box: Weatherproof junction box containing 3 bypass diodes to optimize thermal protection and moisture resistance.
Technical Advantages
- High Efficiency: Delivers up to 22.5% STC module efficiency, producing significantly more kilowatt-hours per square meter than conventional P-Type PERC panels.
- Durable Construction: Anodized aluminum alloy frame paired with double tempered glass eliminates moisture-induced cell corrosion and PID degradation.
- Safety Protection: Anti-PID cell processing and top-tier fire safety certifications ensure secure operation in high-voltage industrial setups.
- Energy Saving: Higher energy yield per watt lowers the Levelized Cost of Energy (LCOE) for long-term power purchase agreements (PPA).
- Easy Maintenance: Smooth dual-glass surface reduces dust buildup and relies on natural rain for effective self-cleaning.
Applications
- Residential: Large rooftop solar systems, multi-story luxury villas, and private estate net-metering setups.
- Commercial: Shopping malls, retail superstores, commercial office complexes, and cold storage units.
- Industrial: Garment factories, textile mills, automated manufacturing plants, and logistics warehouses.
- Factory: On-grid factory rooftop solar arrays and carport shade structures.
- Office: Corporate headquarters, IT parks, and administrative building rooftops.
- Project Installation: Utility-scale ground-mounted solar farms, agro-voltaic setups, and microgrid projects.
Technical Specification Table
| Specification | Details |
| Model | Hi-MO 7 HGD N-Type 580W (LR5-72HGD) |
| Brand | LONGi |
| Rated Power | 580W (Pmax at STC) |
| Voltage | Vmpp: 43.20V | Voc: 51.60V |
| Current | Impp: 13.43A | Isc: 14.19A |
| Frequency | Not Applicable (DC System) |
| Efficiency | 22.5% Module Efficiency |
| Protection | IP68 Junction Box, 3 Bypass Diodes, 30A Series Fuse Rating |
| Dimension | 2278 × 1134 × 30 mm |
| Weight | 31.8 kg |
| Operating Temperature | -40°C to +85°C |
| Warranty | Standard Manufacturer Warranty |
Features List
✓ High efficiency operation reaching up to 22.5% module efficiency
✓ Advanced protection system with IP68 enclosure and anti-PID resistance
✓ Long service life backed by a 30-year linear performance warranty
✓ Easy installation with standard 30mm anodized aluminum framing
✓ Low maintenance dual-glass structure with self-cleaning glass surfaces
Benefits For Customers
- Reduces Electricity Cost: Maximizes clean energy generation to lower utility grid bills and support net-metering exports.
- Improves Operational Reliability: N-Type TOPCon technology ensures stable power output and eliminates initial Light-Induced Degradation (LID).
- Saves Maintenance Cost: Dual-glass framing protects internal cells from moisture ingress, chemical corrosion, and PID degradation.
- Suitable for Bangladesh Environment: Superior temperature performance (-0.28%/°C) maintains high power production in Bangladesh’s hot climate.
Installation & Maintenance Guide
Installation Requirements
- Mount panels on structural steel or aluminum racking engineered to support 31.8 kg per panel and local wind loads.
- Maintain a minimum rear ground clearance (or light-colored rooftop surface) to maximize ground reflection for the bifacial rear side.
- Connect 4 mm² solar cables using MC4-compatible connectors, ensuring correct string polarity before linking to the inverter.
- Install external DC isolators, string fuses (30A rating), and surge protection devices (SPD) before linking to the grid-tied inverter.
Maintenance Tips
- Clean front and rear glass surfaces periodically using fresh water and soft brushes to remove industrial dust buildup.
- Inspect mounting hardware clamps and frame earthing connections annually to ensure structural and electrical security.
- Monitor string voltage and current levels via your solar inverter’s online portal to detect any partial shading issues.
Safety Instructions
- Do not step directly on panel glass surfaces or drop heavy installation tools on the dual-glass structure.
- Cover panel surfaces with an opaque sheet during wiring to prevent electrical shock.
- Installation and grid commissioning must be performed by certified solar engineers or qualified electricians.
FAQ Section
Q: What is the price of LONGi Hi-MO 7 HGD N-Type 580W Solar Panel in Bangladesh?
A: You can check the updated, competitive price for the LONGi Hi-MO 7 HGD 580W N-Type panel directly on loopshop.com.bd, complete with official warranty guarantees and engineering support.
Q: Where can I buy LONGi Hi-MO 7 HGD N-Type 580W Solar Panel in Bangladesh?
A: You can purchase genuine LONGi solar panels online at loopshop.com.bd with secure checkout and fast nationwide delivery across Bangladesh.
Q: What warranty does this product have?
A: It includes a 12-year product materials warranty and a 30-year linear power warranty guaranteeing ≥87.4% power output after 30 years.
Q: Is this suitable for Bangladesh climate?
A: Yes, engineered with an ultra-low temperature coefficient (-0.28%/°C) and an IP68 dual-glass enclosure, it excels in Bangladesh’s hot and humid conditions.
Q: How to install this product?
A: Secure the 31.8 kg panel onto mounting racking using clamps or frame mounting holes, wire 4 mm² DC cables in series/parallel strings, and connect to a 1500V DC inverter.
Q: What is N-Type TOPCon technology in LONGi Hi-MO 7?
A: N-Type TOPCon (Tunnel Oxide Passivated Contact) cell technology eliminates Light-Induced Degradation (LID), increases conversion efficiency, and improves high-temperature operation.
Q: Can I use this panel for solar net metering in Bangladesh?
A: Yes, the LONGi Hi-MO 7 series complies fully with Bangladesh net-metering guidelines for commercial and industrial rooftop setups.
Q: How much extra power does the bifacial rear side generate?
A: Depending on ground surface reflectivity (albedo) and mounting height, the rear side can boost overall system power yield by 10% to 25%.
Q: What inverter maximum system voltage does this panel support?
A: It is designed for high-voltage commercial string inverters supporting up to 1500V DC maximum system voltage.
Q: How does N-Type compare to traditional P-Type solar panels?
A: N-Type panels deliver higher efficiency (22.5%), lower degradation over time, better low-light response, and superior temperature performance compared to standard P-Type PERC panels.

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