Silfab SIL-500-NX 500W vs Hanwha Q.TRON G11S 410W
The Silfab SIL-500-NX 500W wins this comparison by a clear margin. It leads in efficiency (21.8% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Silfab SIL-500-NX 500W is the stronger choice.
Key Differences
- • Silfab SIL-500-NX 500W is rated at 500W while Hanwha Q.TRON G11S 410W is rated at 410W, a 90W difference.
- • Silfab SIL-500-NX 500W achieves 21.8% efficiency vs 21.3% for the other, a 0.5 percentage point gap.
- • Both carry matching 25-year product warranties.
Specifications Breakdown
Module Efficiency
The Silfab SIL-500-NX 500W achieves 21.8% module efficiency compared to Hanwha Q.TRON G11S 410W's 21.3%, meaning Silfab SIL-500-NX 500W converts 0.5 percentage points more sunlight into electricity per square meter. In practical terms, the Silfab SIL-500-NX 500W produces 210.6 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 Silfab SIL-500-NX 500W delivers 500W per panel versus 410W for the Hanwha Q.TRON G11S 410W, a 90W difference per module. To build an 8 kW residential system, you would need 16 Silfab SIL-500-NX 500W panels or 20 Hanwha Q.TRON G11S 410W panels. Choosing the higher-wattage option saves 4 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
Both panels share an identical temperature coefficient of -0.29%/°C, meaning they lose power at the same rate as cell temperature rises above the 25°C standard test baseline. At 65°C cell temperature, both retain 94.2% of rated power. Neither panel has a thermal performance advantage, which makes this specification a non-factor in the comparison.
Warranty Coverage
The Silfab SIL-500-NX 500W is backed by a 25-year product warranty and 30-year performance guarantee, while the Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (1% first year then 0.4%/year for Silfab SIL-500-NX 500W; 1% first year then 0.4%/year for Hanwha Q.TRON G11S 410W), after 25 years the Silfab SIL-500-NX 500W 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 Silfab SIL-500-NX 500W measures 2094×1134×30mm and weighs 25.5 kg, while the Hanwha Q.TRON G11S 410W measures 1722×1134×30mm at 20.8 kg. 2.37 m² of panel area for the Silfab SIL-500-NX 500W versus 1.95 m² for the Hanwha Q.TRON G11S 410W. The Hanwha Q.TRON G11S 410W is 4.7 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 94 kg. The more compact Hanwha Q.TRON G11S 410W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Silfab SIL-500-NX 500W | Hanwha Q.TRON G11S 410W |
|---|---|---|
| Power | 500W | 410W |
| Efficiency | 21.8% | 21.3% |
| Power Density | 19.6 W/sq ft | 19.5 W/sq ft |
| Cell Type | TOPCon N-type | TOPCon N-type |
| Bifacial | No | No |
| Weight | 25.5 kg | 20.8 kg |
| Temp Coefficient | -0.29%/°C | -0.29%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 30 years | 25 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | United States | South Korea |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Silfab SIL-500-NX 500WThe Silfab SIL-500-NX 500W achieves 21.8% efficiency versus 21.3% — a 0.5 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 2.7 kW more total system capacity, or 13 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: TieBoth panels share a temperature coefficient of -0.29%/°C — identical heat tolerance.
3. Durability & Warranty
Winner: TieBoth panels offer identical 25-year product warranties and 0.4% annual degradation. Neither has a durability advantage.
4. Power Output
Winner: Silfab SIL-500-NX 500WThe Silfab SIL-500-NX 500W delivers 500W versus 410W per panel — 90W more. For an 8 kW system, you need 16 panels with the higher-wattage option versus 20 panels, saving 4 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieBoth panels use TOPCon N-type cell technology. No technology advantage for either product.
Silfab SIL-500-NX 500W
Silfab SIL-500-NX is a US-manufactured N-type TOPCon panel delivering 500W with domestic production benefits and a 25-year warranty.
Pros
- + Made in USA
- + 25-year product warranty
- + N-type TOPCon technology
- + Strong domestic support
Cons
- - Higher cost than imports
- - Moderate efficiency
- - Limited brand awareness
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 Silfab SIL-500-NX 500W 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 prefer newer cell technology with a longer performance improvement runway
- ✓ Homeowners prioritizing US-made solar panels with strong domestic warranty.
Choose Hanwha Q.TRON G11S 410W If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Residential installations valuing Korean quality with strong warranty.
Our Recommendation
We recommend the Silfab SIL-500-NX 500W for most buyers in this comparison. It wins 2 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Hanwha Q.TRON G11S 410W remains a good product, but the Silfab SIL-500-NX 500W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Silfab SIL-500-NX 500W or Hanwha Q.TRON G11S 410W?
The Silfab SIL-500-NX 500W wins this comparison by a clear margin. It leads in efficiency (21.8% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Silfab SIL-500-NX 500W is the stronger choice.
Which panel is more efficient, Silfab SIL-500-NX 500W or Hanwha Q.TRON G11S 410W?
The Silfab SIL-500-NX 500W at 21.8% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.5 percentage points translates to approximately 90W per panel under standard test conditions.
Which has a better warranty, Silfab SIL-500-NX 500W or Hanwha Q.TRON G11S 410W?
The Silfab SIL-500-NX 500W comes with a 25-year product warranty and 30-year performance guarantee. The Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Silfab SIL-500-NX 500W has a temperature coefficient of -0.29%/°C and the Hanwha Q.TRON G11S 410W is -0.29%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many Silfab SIL-500-NX 500W vs Hanwha Q.TRON G11S 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 16 Silfab SIL-500-NX 500W panels (500W each) or 20 Hanwha Q.TRON G11S 410W panels (410W each). The Silfab SIL-500-NX 500W requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026