LONGi Hi-MO Series Comparison: Hi-MO 5 vs 7 vs 9 vs X6 vs X10
LONGi's Hi-MO series represents years of continuous innovation in monocrystalline solar panel technology. Each generation brings improvements in efficiency, power output, and value. This guide compares all current Hi-MO models to help you choose the right one for your project.
Overview of the Hi-MO Series
The Hi-MO (High Module Output) series is LONGi's flagship product line. Each model targets different market segments while sharing LONGi's commitment to quality, reliability, and high efficiency. Let's examine each series in detail.
Hi-MO 5: The Proven Performer
The Hi-MO 5 was a breakthrough product that set new standards for large-format panels. It uses M10 wafers (182mm) and features LONGi's gallium-doped technology for reduced LID (Light Induced Degradation).
- Cell technology: PERC monocrystalline
- Wattage range: 530-555Wp
- Efficiency: Up to 21.3%
- Best for: Large-scale utility and commercial projects where proven reliability matters most
- Key advantage: Extensive track record and competitive pricing
Hi-MO 7: The Distributed Generation Champion
The Hi-MO 7 introduced HPBC (Hybrid Passivated Back Contact) cell technology, delivering a significant efficiency leap over PERC-based panels. Designed specifically for rooftop and distributed generation applications.
- Cell technology: HPBC monocrystalline
- Wattage range: 560-590Wp
- Efficiency: Up to 22.5%
- Best for: Residential and commercial rooftops where aesthetics and efficiency per area matter
- Key advantage: Sleek appearance with no visible busbars on the front, combined with top-tier efficiency
Hi-MO 9: The Utility-Scale Powerhouse
The Hi-MO 9 combines HPBC cell technology with the larger G12R wafer format, pushing power output to new heights for utility-scale solar farms.
- Cell technology: HPBC monocrystalline (G12R wafer)
- Wattage range: 620-660Wp
- Efficiency: Up to 22.8%
- Best for: Utility-scale and large commercial installations where maximum power per panel reduces BOS costs
- Key advantage: Highest power output in the Hi-MO lineup, optimized for ground-mount tracker systems
Hi-MO X6: Anti-Reflective Excellence
The Hi-MO X6 focuses on maximizing energy harvest in real-world conditions with advanced anti-reflective coating and enhanced low-light performance.
- Cell technology: Advanced PERC+ monocrystalline
- Wattage range: 540-570Wp
- Efficiency: Up to 21.8%
- Best for: Projects in locations with variable weather, high humidity, or frequent cloud cover
- Key advantage: Superior real-world energy yield thanks to enhanced low-light and anti-reflective performance
Hi-MO X10: The Next Generation
The Hi-MO X10 represents LONGi's latest technology platform, incorporating second-generation HPBC cells with further efficiency improvements and enhanced durability.
- Cell technology: 2nd-gen HPBC monocrystalline
- Wattage range: 600-650Wp
- Efficiency: Up to 23.0%+
- Best for: Premium residential, commercial, and industrial projects demanding the latest technology
- Key advantage: Highest efficiency in the LONGi lineup with improved temperature coefficient and lowest degradation rates
Side-by-Side Comparison
When choosing between Hi-MO models, consider these key differentiators:
- Budget-conscious large projects: Hi-MO 5 offers the best cost per watt with proven reliability.
- Residential rooftops: Hi-MO 7 provides the ideal balance of aesthetics, efficiency, and value.
- Utility-scale farms: Hi-MO 9 delivers maximum power per panel, reducing installation labor and BOS costs.
- Challenging climates: Hi-MO X6 excels in low-light and variable weather conditions.
- Future-proof premium: Hi-MO X10 offers the absolute best performance for those who want cutting-edge technology.
Which Hi-MO Should You Choose?
The right choice depends on your project type, budget, and priorities. For most residential customers, the Hi-MO 7 offers the best balance. For commercial rooftops, the Hi-MO 7 or X10 are excellent choices. For utility-scale projects, the Hi-MO 9 delivers the lowest levelized cost of energy. Contact our team for a personalized recommendation based on your specific requirements.
Frequently Asked Questions
What is the difference between LONGi Hi-MO 5 and Hi-MO 7?
The main difference is cell technology: Hi-MO 5 uses PERC cells while Hi-MO 7 uses the newer HPBC (Hybrid Passivated Back Contact) technology. This gives the Hi-MO 7 higher efficiency (up to 22.5% vs 21.3%), a cleaner front appearance with no visible busbars, and better performance in real-world conditions. The Hi-MO 7 is designed for rooftop applications while the Hi-MO 5 targets utility-scale projects.
Which LONGi Hi-MO panel has the highest efficiency?
The LONGi Hi-MO X10 has the highest efficiency at over 23.0%, using second-generation HPBC cell technology. It is followed by the Hi-MO 9 at up to 22.8%, the Hi-MO 7 at up to 22.5%, the Hi-MO X6 at up to 21.8%, and the Hi-MO 5 at up to 21.3%. Higher efficiency means more power output per square meter of panel area.
Which LONGi panel is best for residential use?
The LONGi Hi-MO 7 is the best choice for most residential installations. It offers high efficiency (up to 22.5%), a clean aesthetic appearance with no visible busbars on the front, and is specifically designed for distributed generation and rooftop applications. For homeowners wanting the absolute latest technology, the Hi-MO X10 is also an excellent premium option.