Canadian Solar BiHiKu7 670W vs Hanwha Q.TRON G11S 410W
The Hanwha Q.TRON G11S 410W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Hanwha Q.TRON G11S 410W is the stronger choice.
Key Differences
- • Canadian Solar BiHiKu7 670W is rated at 670W while Hanwha Q.TRON G11S 410W is rated at 410W, a 260W difference.
- • Canadian Solar BiHiKu7 670W achieves 22.3% efficiency vs 21.3% for the other, a 1.0 percentage point gap.
- • Hanwha Q.TRON G11S 410W comes with a 25-year product warranty vs 15 years for the other.
- • Canadian Solar BiHiKu7 670W has a superior temperature coefficient of -0.28%/°C vs -0.29%/°C, retaining more power in hot climates.
- • Canadian Solar BiHiKu7 670W uses TOPCon N-type Bifacial cells while Hanwha Q.TRON G11S 410W uses TOPCon N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Canadian Solar BiHiKu7 670W achieves 22.3% module efficiency compared to Hanwha Q.TRON G11S 410W's 21.3%, meaning Canadian Solar BiHiKu7 670W converts 1.0 percentage points more sunlight into electricity per square meter. In practical terms, the Canadian Solar BiHiKu7 670W produces 215.7 watts per square meter of panel area while the Hanwha Q.TRON G11S 410W produces 210.0 W/m². For rooftop installations where space is limited, this efficiency gap determines how many kilowatts you can fit on your available roof area. Over a 25-year system life, even a small efficiency advantage compounds into meaningful additional energy production.
Power Output
The Canadian Solar BiHiKu7 670W delivers 670W per panel versus 410W for the Hanwha Q.TRON G11S 410W, a 260W difference per module. To build an 8 kW residential system, you would need 12 Canadian Solar BiHiKu7 670W panels or 20 Hanwha Q.TRON G11S 410W panels. Choosing the higher-wattage option saves 8 panels, reducing total racking hardware, wiring, and installation labor costs. Higher wattage per panel is particularly valuable for commercial-scale installations where panel count directly impacts balance-of-system costs.
Temperature Coefficient
The Canadian Solar BiHiKu7 670W has a temperature coefficient of -0.28%/°C versus -0.29%/°C for the Hanwha Q.TRON G11S 410W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Canadian Solar BiHiKu7 670W retains 94.4% of its rated power while the other retains 94.2%. While the numerical gap is modest, it still accumulates over decades of summer production, especially in southern latitudes with prolonged peak heat hours.
Warranty Coverage
The Canadian Solar BiHiKu7 670W is backed by a 15-year product warranty and 30-year performance guarantee, while the Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance coverage. The Hanwha Q.TRON G11S 410W provides 10 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (1% first year then 0.4%/year for Canadian Solar BiHiKu7 670W; 1% first year then 0.4%/year for Hanwha Q.TRON G11S 410W), after 25 years the Canadian Solar BiHiKu7 670W should retain approximately 89.4% of original output versus 89.4% for the Hanwha Q.TRON G11S 410W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Canadian Solar BiHiKu7 670W measures 2384×1303×35mm and weighs 34.5 kg, while the Hanwha Q.TRON G11S 410W measures 1722×1134×30mm at 20.8 kg. 3.11 m² of panel area for the Canadian Solar BiHiKu7 670W versus 1.95 m² for the Hanwha Q.TRON G11S 410W. The Hanwha Q.TRON G11S 410W is 13.7 kg lighter per panel, which reduces structural load requirements on the roof and makes handling easier during installation. For a 20-panel system, that is a total weight difference of 274 kg. The more compact Hanwha Q.TRON G11S 410W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Canadian Solar BiHiKu7 670W | Hanwha Q.TRON G11S 410W |
|---|---|---|
| Power | 670W | 410W |
| Efficiency | 22.3% | 21.3% |
| Power Density | 20.0 W/sq ft | 19.5 W/sq ft |
| Cell Type | TOPCon N-type Bifacial | TOPCon N-type |
| Bifacial | Yes | No |
| Weight | 34.5 kg | 20.8 kg |
| Temp Coefficient | -0.28%/°C | -0.29%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 15 years | 25 years |
| Performance Warranty | 30 years | 25 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | China | South Korea |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Canadian Solar BiHiKu7 670WThe Canadian Solar BiHiKu7 670W achieves 22.3% efficiency versus 21.3% — a 1.0 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 7.8 kW more total system capacity, or 36 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Canadian Solar BiHiKu7 670WThe Canadian Solar BiHiKu7 670W has a better temperature coefficient of -0.28%/°C versus -0.29%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.4% of rated power versus 94.2%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Hanwha Q.TRON G11S 410WHanwha Q.TRON G11S 410W leads with a 25-year product warranty versus 15 years. After 25 years, expect 89.4% vs 89.4% of original output for Canadian Solar BiHiKu7 670W and Hanwha Q.TRON G11S 410W respectively.
4. Power Output
Winner: Canadian Solar BiHiKu7 670WThe Canadian Solar BiHiKu7 670W delivers 670W versus 410W per panel — 260W more. For an 8 kW system, you need 12 panels with the higher-wattage option versus 20 panels, saving 8 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieThe Canadian Solar BiHiKu7 670W uses TOPCon N-type Bifacial: TOPCon (Tunnel Oxide Passivated Contact) adds a thin tunnel oxide layer to reduce recombination losses, achieving higher efficiency than PERC while being manufacturable on existing production lines. The Hanwha Q.TRON G11S 410W uses TOPCon N-type: TOPCon (Tunnel Oxide Passivated Contact) adds a thin tunnel oxide layer to reduce recombination losses, achieving higher efficiency than PERC while being manufacturable on existing production lines. Both are equivalent-generation technologies.
Canadian Solar BiHiKu7 670W
The BiHiKu7 is Canadian Solar's most powerful bifacial module at 670W, designed for utility-scale and large commercial projects.
Pros
- + Highest wattage available
- + Bifacial energy gain
- + Excellent for tracking systems
- + Low LCOE
Cons
- - Extremely large panel
- - Not for residential roofs
- - Very heavy at 34.5 kg
Hanwha Q.TRON G11S 410W
The Hanwha Q.TRON G11S delivers 410W N-type TOPCon performance in a compact residential format with a strong 25-year warranty.
Pros
- + 25-year product warranty
- + N-type TOPCon cells
- + Compact size
- + Korean quality
Cons
- - Moderate wattage
- - Premium pricing
- - Limited color options
Choose Canadian Solar BiHiKu7 670W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Utility-scale and large commercial ground-mount projects.
Choose Hanwha Q.TRON G11S 410W If...
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Residential installations valuing Korean quality with strong warranty.
Our Recommendation
Both the Canadian Solar BiHiKu7 670W and Hanwha Q.TRON G11S 410W are excellent solar panel options, and the margin between them is narrow. The Hanwha Q.TRON G11S 410W wins 1 of 5 comparison dimensions by a slim margin. Your decision may come down to local pricing, installer availability, and which specific performance metrics matter most for your project. Either product is a solid investment.
Frequently Asked Questions
Which is better, Canadian Solar BiHiKu7 670W or Hanwha Q.TRON G11S 410W?
The Hanwha Q.TRON G11S 410W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Hanwha Q.TRON G11S 410W is the stronger choice.
Which panel is more efficient, Canadian Solar BiHiKu7 670W or Hanwha Q.TRON G11S 410W?
The Canadian Solar BiHiKu7 670W at 22.3% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 1.0 percentage points translates to approximately 260W per panel under standard test conditions.
Which has a better warranty, Canadian Solar BiHiKu7 670W or Hanwha Q.TRON G11S 410W?
The Canadian Solar BiHiKu7 670W comes with a 15-year product warranty and 30-year performance guarantee. The Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance warranties. Hanwha Q.TRON G11S 410W provides 10 additional years of product coverage.
Which panel performs better in hot weather?
The Canadian Solar BiHiKu7 670W has a temperature coefficient of -0.28%/°C and the Hanwha Q.TRON G11S 410W is -0.29%/°C. Canadian Solar BiHiKu7 670W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Canadian Solar BiHiKu7 670W vs Hanwha Q.TRON G11S 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 12 Canadian Solar BiHiKu7 670W panels (670W each) or 20 Hanwha Q.TRON G11S 410W panels (410W each). The Canadian Solar BiHiKu7 670W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026