LONGI Solar Hi-MO 7 LR8-66HGD-615M Bifacial Double Glass High-Efficiency Solar Panel 615W
Step into the future of solar energy with the revolutionary LONGI Solar Hi-MO 7 LR8-66HGD-615M Bifacial Double Glass High-Efficiency Solar Panel. Engineered for maximum performance and durability, this 615W solar panel represents the pinnacle of photovoltaic technology, offering unparalleled energy yield and a robust design for diverse applications across Bangladesh. Designed to capture sunlight from both the front and rear sides, the Hi-MO 7 series significantly boosts energy generation, making it an ideal choice for residential, commercial, and utility-scale projects seeking superior efficiency and long-term reliability.
Overview of the LONGI Hi-MO 7 LR8-66HGD-615M
The LONGI Hi-MO 7 LR8-66HGD-615M is a cutting-edge bifacial double glass solar module designed to deliver exceptional power output even in challenging environmental conditions. With an impressive 615 watts of nominal power, this panel utilizes advanced HPBC (Hybrid Passivated Back Contact) cell technology, which is a significant leap forward from traditional PERC cells. This innovative design ensures higher efficiency, better low-light performance, and superior temperature coefficients, translating to more electricity generated over its lifetime. The double glass construction enhances mechanical strength and reduces potential-induced degradation (PID), ensuring a longer operational lifespan and consistent performance, a critical factor for solar investments in Bangladesh.
Key Features
- Ultra-High Power Output: Delivers a substantial 615W, maximizing energy generation from a smaller footprint. This makes the LONGI Hi-MO 7 615W an excellent choice for optimizing space in Bangladesh's urban and rural settings.
- Exceptional Module Efficiency: Boasts an impressive module efficiency of up to 21.7%, ensuring more power is converted from sunlight, even on cloudy days.
- Bifacial Technology: Captures sunlight from both the front and rear surfaces, enabling up to 5-25% additional energy gain depending on the ground reflection (albedo), significantly boosting overall system yield.
- Double Glass Design: Features 2.0mm heat-strengthened glass on both the front and rear, providing superior resistance against micro-cracks, PID, and harsh weather conditions, ensuring long-term durability in the diverse climate of Bangladesh.
- HPBC Cell Technology: Utilizes LONGI’s innovative HPBC cell architecture, which eliminates front-side busbars, allowing for a larger active area and enhanced light absorption. This results in higher power output and aesthetic appeal.
- Low Degradation: Engineered for minimal power degradation over time, guaranteeing sustained high performance for decades. It comes with a leading 0.35% annual degradation rate after the first year.
- Excellent Low-Light Performance: Optimized to perform efficiently under low irradiance conditions, such as mornings, evenings, and overcast days, ensuring consistent energy production throughout the day in Bangladesh.
- Superior Temperature Coefficients: Exhibits improved performance at higher temperatures, reducing power loss during Bangladesh's hot summer months.
- Robust Mechanical Load Resistance: Designed to withstand significant wind and snow loads (Front side 5400 Pa / Rear side 2400 Pa), ensuring reliability and safety.
- Extended Warranty: Backed by a 12-year product warranty and an outstanding 30-year linear power output warranty, providing peace of mind for your investment.
Detailed Specifications
The LONGI Solar Hi-MO 7 LR8-66HGD-615M is built to rigorous international standards, ensuring top-tier performance and reliability. Below are the comprehensive specifications:
| Attribute |
Specification |
| Module Type |
LR8-66HGD-615M |
| Nominal Power (Pmax) |
615 W |
| Module Efficiency |
21.7% |
| Power Tolerance |
0 ~ +5W |
| Cell Type |
Mono-crystalline, P-type, Gallium-doped, HPBC |
| Number of Cells |
132 (6x22) Half-cut cells |
| Open Circuit Voltage (Voc) |
42.94 V |
| Short Circuit Current (Isc) |
18.30 A |
| Voltage at Max Power (Vmp) |
35.78 V |
| Current at Max Power (Imp) |
17.19 A |
| Maximum System Voltage |
1500 V DC |
| Operating Temperature |
-40°C to +85°C |
| Power Temperature Coefficient (Pmax) |
-0.29 %/°C |
| Voltage Temperature Coefficient (Voc) |
-0.25 %/°C |
| Current Temperature Coefficient (Isc) |
+0.048 %/°C |
| Nominal Operating Cell Temperature (NOCT) |
45 ± 2 °C |
| Dimensions (L x W x H) |
2382 mm x 1134 mm x 30 mm (93.8 x 44.6 x 1.18 inches) |
| Weight |
32.3 kg (71.2 lbs) |
| Front Glass |
2.0 mm heat strengthened glass |
| Rear Glass |
2.0 mm heat strengthened glass |
| Frame |
Anodized Aluminium Alloy |
| Junction Box |
IP68 rated, 3 bypass diodes |
| Cables |
TUV 1x4.0mm², length 1400mm (positive), 1400mm (negative) |
| Connector |
MC4 compatible |
| Mechanical Load (Front) |
5400 Pa |
| Mechanical Load (Rear) |
2400 Pa |
| Bifaciality Factor |
70 ± 5% |
| Product Warranty |
12 years |
| Linear Power Output Warranty |
30 years (0.35% annual degradation after 1st year) |
Benefits of Bifacial Double Glass Technology
The combination of bifacial and double glass technology in the LONGI Hi-MO 7 LR8-66HGD-615M offers several distinct advantages, particularly beneficial for solar projects in Bangladesh:
- Increased Energy Yield: By harnessing sunlight from both sides, bifacial panels can generate significantly more electricity compared to traditional mono-facial panels. This extra yield can reduce the number of panels needed for a given energy target, optimizing space and reducing overall system costs.
- Enhanced Durability: The double glass structure provides superior protection against environmental stresses such as humidity, sand, salt mist, and ammonia. This makes the panel highly resilient against potential-induced degradation (PID) and ensures a longer lifespan, crucial for the coastal and humid regions of Bangladesh.
- Lower LCOE (Levelized Cost of Energy): Higher energy yield and extended durability directly translate to a lower LCOE over the panel's lifetime, making your solar investment more profitable and sustainable.
- Improved Fire Safety: Double glass modules often have better fire resistance characteristics compared to backsheet modules.
- Aesthetic Appeal: The frameless or minimalistic frame design with transparent rear glass can offer a more elegant and modern look, suitable for visible installations.
Ideal Applications in Bangladesh
The LONGI Solar Hi-MO 7 LR8-66HGD-615M is versatile and perfectly suited for a wide range of applications throughout Bangladesh:
- Rooftop Solar Projects: Ideal for commercial and industrial rooftops, where high power density and efficiency are paramount to maximize energy generation within limited space.
- Ground-Mounted Solar Farms: Excellent for large-scale utility projects, benefiting from the bifacial gain due to optimal ground reflection.
- Residential Solar Systems: For homeowners looking for premium performance and long-term savings, providing maximum power from fewer panels.
- Agricultural Applications: Can be integrated into agri-photovoltaic systems, allowing crops to grow beneath while generating electricity.
- Net Metering Projects: Maximizes the generation capacity for net metering systems, helping consumers in Bangladesh significantly reduce their electricity bills.
Installation and Maintenance
For optimal performance and safety, professional installation of the LONGI Hi-MO 7 LR8-66HGD-615M solar panel is highly recommended. Ensure proper racking, wiring, and grounding are implemented according to local regulations and manufacturer guidelines. Regular maintenance, including cleaning the panel surfaces to remove dust and debris, and periodic inspection of electrical connections, will ensure maximum energy harvest and longevity of the system. Given Bangladesh's dusty conditions, routine cleaning is particularly important to maintain peak efficiency.
Why Choose LONGI Hi-MO 7 615W for Your Project in Bangladesh?
Choosing the LONGI Hi-MO 7 LR8-66HGD-615M means investing in world-leading solar technology from a trusted manufacturer. LONGI is globally recognized for its commitment to innovation, quality, and sustainable energy solutions. This 615W bifacial double glass panel offers a compelling combination of high power output, superior efficiency, exceptional durability, and a robust warranty, making it a smart and reliable choice for anyone looking to harness solar power effectively in Bangladesh. Its ability to perform optimally in various conditions ensures a higher return on investment over its extended operational life.
Availability & Price in Bangladesh
The LONGI Solar Hi-MO 7 LR8-66HGD-615M Bifacial Double Glass High-Efficiency Solar Panel 615W is readily available through authorized distributors and solar solution providers across Bangladesh. For those searching for "LONGI Solar Hi-MO 7 LR8-66HGD-615M price in Bangladesh" or "615W bifacial solar panel price in Bangladesh," you'll find competitive pricing reflecting its premium features and advanced technology. While prices can vary based on supplier, quantity, and market fluctuations, you can expect the LONGI Hi-MO 7 615W panel to be priced typically in the range of ৳28,000 to ৳32,000 per panel. We recommend contacting local solar retailers for the most current and best price in Bangladesh. Many suppliers offer convenient delivery in Bangladesh, and you can often find a "LONGI solar panel near me" by checking with major solar equipment providers in Dhaka, Chittagong, Sylhet, and other major cities. Invest in LONGI for a sustainable and powerful energy future in Bangladesh.
