Hanwha Q.TRON G11S 410W vs CertainTeed Solstice Solar Panel 365W
The Hanwha Q.TRON G11S 410W wins this comparison by a decisive margin. It leads in efficiency (21.3% vs 19.9%) and matches or exceeds on warranty (25 vs 10 years). For most residential installations, the Hanwha Q.TRON G11S 410W is the stronger choice.
Key Differences
- • Hanwha Q.TRON G11S 410W is rated at 410W while CertainTeed Solstice Solar Panel 365W is rated at 365W, a 45W difference.
- • Hanwha Q.TRON G11S 410W achieves 21.3% efficiency vs 19.9% for the other, a 1.4 percentage point gap.
- • Hanwha Q.TRON G11S 410W comes with a 25-year product warranty vs 10 years for the other.
- • Hanwha Q.TRON G11S 410W has a superior temperature coefficient of -0.29%/°C vs -0.36%/°C, retaining more power in hot climates.
- • Hanwha Q.TRON G11S 410W uses TOPCon N-type cells while CertainTeed Solstice Solar Panel 365W uses Monocrystalline PERC cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Hanwha Q.TRON G11S 410W achieves 21.3% module efficiency compared to CertainTeed Solstice Solar Panel 365W's 19.9%, meaning Hanwha Q.TRON G11S 410W converts 1.4 percentage points more sunlight into electricity per square meter. In practical terms, the Hanwha Q.TRON G11S 410W produces 210.0 watts per square meter of panel area while the CertainTeed Solstice Solar Panel 365W produces 199.2 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 Hanwha Q.TRON G11S 410W delivers 410W per panel versus 365W for the CertainTeed Solstice Solar Panel 365W, a 45W difference per module. To build an 8 kW residential system, you would need 20 Hanwha Q.TRON G11S 410W panels or 22 CertainTeed Solstice Solar Panel 365W panels. Choosing the higher-wattage option saves 2 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 Hanwha Q.TRON G11S 410W has a temperature coefficient of -0.29%/°C versus -0.36%/°C for the CertainTeed Solstice Solar Panel 365W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Hanwha Q.TRON G11S 410W retains 94.2% of its rated power while the other retains 92.8%. This difference is particularly significant in hot climates such as the American Southwest, the Middle East, and Southeast Asia, where panels routinely operate 30-40°C above STC for several hours each day. Over the system lifetime, the cumulative energy advantage from a better temperature coefficient can amount to 2-4% of total production.
Warranty Coverage
The Hanwha Q.TRON G11S 410W is backed by a 25-year product warranty and 25-year performance guarantee, while the CertainTeed Solstice Solar Panel 365W offers 10-year product and 25-year performance coverage. The Hanwha Q.TRON G11S 410W provides 15 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 Hanwha Q.TRON G11S 410W; 2% first year then 0.55%/year for CertainTeed Solstice Solar Panel 365W), after 25 years the Hanwha Q.TRON G11S 410W should retain approximately 89.4% of original output versus 84.8% for the CertainTeed Solstice Solar Panel 365W. This 4.6 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Hanwha Q.TRON G11S 410W measures 1722×1134×30mm and weighs 20.8 kg, while the CertainTeed Solstice Solar Panel 365W measures 1755×1044×40mm at 21.6 kg. 1.95 m² of panel area for the Hanwha Q.TRON G11S 410W versus 1.83 m² for the CertainTeed Solstice Solar Panel 365W. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. The more compact CertainTeed Solstice Solar Panel 365W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Hanwha Q.TRON G11S 410W | CertainTeed Solstice Solar Panel 365W |
|---|---|---|
| Power | 410W | 365W |
| Efficiency | 21.3% | 19.9% |
| Power Density | 19.5 W/sq ft | 18.5 W/sq ft |
| Cell Type | TOPCon N-type | Monocrystalline PERC |
| Bifacial | No | No |
| Weight | 20.8 kg | 21.6 kg |
| Temp Coefficient | -0.29%/°C | -0.36%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 10 years |
| Performance Warranty | 25 years | 25 years |
| Degradation (Year 1) | 1% | 2% |
| Annual Degradation | 0.4% | 0.55% |
| Country | South Korea | United States |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Hanwha Q.TRON G11S 410WThe Hanwha Q.TRON G11S 410W achieves 21.3% efficiency versus 19.9% — a 1.4 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.4 kW more total system capacity, or 7 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Hanwha Q.TRON G11S 410WThe Hanwha Q.TRON G11S 410W has a better temperature coefficient of -0.29%/°C versus -0.36%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.2% of rated power versus 92.8%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Hanwha Q.TRON G11S 410WHanwha Q.TRON G11S 410W leads with a 25-year product warranty versus 10 years. Hanwha Q.TRON G11S 410W degrades more slowly at 0.4% per year versus 0.55%. After 25 years, expect 89.4% vs 84.8% of original output for Hanwha Q.TRON G11S 410W and CertainTeed Solstice Solar Panel 365W respectively.
4. Power Output
Winner: Hanwha Q.TRON G11S 410WThe Hanwha Q.TRON G11S 410W delivers 410W versus 365W per panel — 45W more. For an 8 kW system, you need 20 panels with the higher-wattage option versus 22 panels, saving 2 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Hanwha Q.TRON G11S 410WThe 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. The CertainTeed Solstice Solar Panel 365W uses Monocrystalline PERC: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. TOPCon N-type represents a newer generation technology with a longer performance runway as manufacturing matures.
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
CertainTeed Solstice Solar Panel 365W
The CertainTeed Solstice Solar Panel 365W is a conventional residential solar panel from CertainTeed (Saint-Gobain), using monocrystalline PERC half-cut cells. Designed to pair with CertainTeed roofing products for a coordinated roof-and-solar installation through certified roofing contractors.
Pros
- + Made in the USA by Saint-Gobain subsidiary
- + 10-year product warranty — strong for US-manufactured panel
- + Designed for seamless pairing with CertainTeed roofing
- + Half-cut PERC cells for partial shade resilience
- + Available through established roofing contractor network
Cons
- - 19.9% efficiency below current N-Type leaders
- - 365W output lower than modern 400W+ panels
- - Heavier at 21.6 kg than comparable wattage panels
- - Higher cost per watt than budget alternatives
- - Limited distribution outside CertainTeed roofing dealers
Choose Hanwha Q.TRON G11S 410W 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
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ 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
Choose CertainTeed Solstice Solar Panel 365W If...
- ✓ Homeowners doing a combined roof replacement and solar installation through CertainTeed-certified contractors.
Our Recommendation
The Hanwha Q.TRON G11S 410W is the decisive winner in this solar panel comparison, outperforming the CertainTeed Solstice Solar Panel 365W in 5 of 5 dimensions. Unless you have a specific requirement that the CertainTeed Solstice Solar Panel 365W uniquely addresses, the Hanwha Q.TRON G11S 410W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Hanwha Q.TRON G11S 410W or CertainTeed Solstice Solar Panel 365W?
The Hanwha Q.TRON G11S 410W wins this comparison by a decisive margin. It leads in efficiency (21.3% vs 19.9%) and matches or exceeds on warranty (25 vs 10 years). For most residential installations, the Hanwha Q.TRON G11S 410W is the stronger choice.
Which panel is more efficient, Hanwha Q.TRON G11S 410W or CertainTeed Solstice Solar Panel 365W?
The Hanwha Q.TRON G11S 410W at 21.3% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 1.4 percentage points translates to approximately 45W per panel under standard test conditions.
Which has a better warranty, Hanwha Q.TRON G11S 410W or CertainTeed Solstice Solar Panel 365W?
The Hanwha Q.TRON G11S 410W comes with a 25-year product warranty and 25-year performance guarantee. The CertainTeed Solstice Solar Panel 365W offers 10-year product and 25-year performance warranties. Hanwha Q.TRON G11S 410W provides 15 additional years of product coverage.
Which panel performs better in hot weather?
The Hanwha Q.TRON G11S 410W has a temperature coefficient of -0.29%/°C and the CertainTeed Solstice Solar Panel 365W is -0.36%/°C. Hanwha Q.TRON G11S 410W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Hanwha Q.TRON G11S 410W vs CertainTeed Solstice Solar Panel 365W panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Hanwha Q.TRON G11S 410W panels (410W each) or 22 CertainTeed Solstice Solar Panel 365W panels (365W each). The Hanwha Q.TRON G11S 410W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026