Canadian Solar BiHiKu7 670W vs Risen Energy Hyper-ion HJT 700W
The Risen Energy Hyper-ion HJT 700W wins this comparison by a clear margin. It leads in efficiency (23% vs 22.3%) and matches or exceeds on warranty (15 vs 15 years). For most residential installations, the Risen Energy Hyper-ion HJT 700W is the stronger choice.
Key Differences
- • Canadian Solar BiHiKu7 670W is rated at 670W while Risen Energy Hyper-ion HJT 700W is rated at 700W, a 30W difference.
- • Risen Energy Hyper-ion HJT 700W achieves 23% efficiency vs 22.3% for the other, a 0.7 percentage point gap.
- • Both carry matching 15-year product warranties.
- • Risen Energy Hyper-ion HJT 700W has a superior temperature coefficient of -0.25%/°C vs -0.28%/°C, retaining more power in hot climates.
- • Canadian Solar BiHiKu7 670W uses TOPCon N-type Bifacial cells while Risen Energy Hyper-ion HJT 700W uses HJT (Heterojunction) cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Risen Energy Hyper-ion HJT 700W achieves 23% module efficiency compared to Canadian Solar BiHiKu7 670W's 22.3%, meaning Risen Energy Hyper-ion HJT 700W converts 0.7 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 Risen Energy Hyper-ion HJT 700W produces 225.3 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 Risen Energy Hyper-ion HJT 700W delivers 700W per panel versus 670W for the Canadian Solar BiHiKu7 670W, a 30W difference per module. To build an 8 kW residential system, you would need 12 Canadian Solar BiHiKu7 670W panels or 12 Risen Energy Hyper-ion HJT 700W panels. Despite the per-panel wattage difference, both require the same number of panels for this system size due to rounding. Higher wattage per panel is particularly valuable for commercial-scale installations where panel count directly impacts balance-of-system costs.
Temperature Coefficient
The Risen Energy Hyper-ion HJT 700W has a temperature coefficient of -0.25%/°C versus -0.28%/°C for the Canadian Solar BiHiKu7 670W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Risen Energy Hyper-ion HJT 700W retains 95.0% of its rated power while the other retains 94.4%. 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 Risen Energy Hyper-ion HJT 700W offers 15-year product and 30-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (1% first year then 0.4%/year for Canadian Solar BiHiKu7 670W; 0.5% first year then 0.35%/year for Risen Energy Hyper-ion HJT 700W), after 25 years the Canadian Solar BiHiKu7 670W should retain approximately 89.4% of original output versus 91.1% for the Risen Energy Hyper-ion HJT 700W. This 1.7 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Canadian Solar BiHiKu7 670W measures 2384×1303×35mm and weighs 34.5 kg, while the Risen Energy Hyper-ion HJT 700W measures 2384×1303×35mm at 35.5 kg. 3.11 m² of panel area for the Canadian Solar BiHiKu7 670W versus 3.11 m² for the Risen Energy Hyper-ion HJT 700W. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. Similar footprints mean both panels fit comparably on standard residential rooftop configurations.
Specification Comparison
| Specification | Canadian Solar BiHiKu7 670W | Risen Energy Hyper-ion HJT 700W |
|---|---|---|
| Power | 670W | 700W |
| Efficiency | 22.3% | 23% |
| Power Density | 20.0 W/sq ft | 20.9 W/sq ft |
| Cell Type | TOPCon N-type Bifacial | HJT (Heterojunction) |
| Bifacial | Yes | Yes |
| Weight | 34.5 kg | 35.5 kg |
| Temp Coefficient | -0.28%/°C | -0.25%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 15 years | 15 years |
| Performance Warranty | 30 years | 30 years |
| Degradation (Year 1) | 1% | 0.5% |
| Annual Degradation | 0.4% | 0.35% |
| Country | China | China |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W achieves 23% efficiency versus 22.3% — a 0.7 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.9 kW more total system capacity, or 5 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W has a better temperature coefficient of -0.25%/°C versus -0.28%/°C. On a 45°C summer day (20°C above STC), the winner retains 95.0% of rated power versus 94.4%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Risen Energy Hyper-ion HJT 700WRisen Energy Hyper-ion HJT 700W degrades more slowly at 0.35% per year versus 0.4%. After 25 years, expect 89.4% vs 91.1% of original output for Canadian Solar BiHiKu7 670W and Risen Energy Hyper-ion HJT 700W respectively.
4. Power Output
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W delivers 700W versus 670W per panel — 30W more. For an 8 kW system, you need 12 panels with the higher-wattage option versus 12 panels, saving 0 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Risen Energy Hyper-ion HJT 700WThe 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 Risen Energy Hyper-ion HJT 700W uses HJT (Heterojunction): HJT (Heterojunction) combines crystalline silicon with amorphous silicon layers, delivering the best temperature coefficient and bifacial gains, but at higher manufacturing cost. HJT (Heterojunction) represents a newer generation technology with a longer performance runway as manufacturing matures.
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
Risen Energy Hyper-ion HJT 700W
The Hyper-ion HJT 700W is one of the highest-wattage residential/commercial panels available, using advanced HJT cells for exceptional efficiency.
Pros
- + Ultra-high 700W output
- + 23.0% HJT efficiency
- + Best temperature coefficient
- + Future-proof technology
Cons
- - Extremely large and heavy
- - Premium pricing
- - Limited availability
Choose Canadian Solar BiHiKu7 670W If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Utility-scale and large commercial ground-mount projects.
Choose Risen Energy Hyper-ion HJT 700W 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 want maximum output retention over the system's 25-30 year lifespan
- ✓ You prefer newer cell technology with a longer performance improvement runway
Our Recommendation
We recommend the Risen Energy Hyper-ion HJT 700W for most buyers in this comparison. It wins 5 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Canadian Solar BiHiKu7 670W remains a good product, but the Risen Energy Hyper-ion HJT 700W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Canadian Solar BiHiKu7 670W or Risen Energy Hyper-ion HJT 700W?
The Risen Energy Hyper-ion HJT 700W wins this comparison by a clear margin. It leads in efficiency (23% vs 22.3%) and matches or exceeds on warranty (15 vs 15 years). For most residential installations, the Risen Energy Hyper-ion HJT 700W is the stronger choice.
Which panel is more efficient, Canadian Solar BiHiKu7 670W or Risen Energy Hyper-ion HJT 700W?
The Risen Energy Hyper-ion HJT 700W at 23% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.7 percentage points translates to approximately 30W per panel under standard test conditions.
Which has a better warranty, Canadian Solar BiHiKu7 670W or Risen Energy Hyper-ion HJT 700W?
The Canadian Solar BiHiKu7 670W comes with a 15-year product warranty and 30-year performance guarantee. The Risen Energy Hyper-ion HJT 700W offers 15-year product and 30-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Canadian Solar BiHiKu7 670W has a temperature coefficient of -0.28%/°C and the Risen Energy Hyper-ion HJT 700W is -0.25%/°C. Risen Energy Hyper-ion HJT 700W 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 Risen Energy Hyper-ion HJT 700W 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 12 Risen Energy Hyper-ion HJT 700W panels (700W each). The Risen Energy Hyper-ion HJT 700W requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026