Hanwha Q.TRON G11S 410W vs Solaria PowerXT 400R Pure Black
The Hanwha Q.TRON G11S 410W wins this comparison by a clear margin. It leads in efficiency (21.3% vs 20.5%) and matches or exceeds on warranty (25 vs 25 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 Solaria PowerXT 400R Pure Black is rated at 400W, a 10W difference.
- • Hanwha Q.TRON G11S 410W achieves 21.3% efficiency vs 20.5% for the other, a 0.8 percentage point gap.
- • Both carry matching 25-year product warranties.
- • Hanwha Q.TRON G11S 410W has a superior temperature coefficient of -0.29%/°C vs -0.34%/°C, retaining more power in hot climates.
- • Hanwha Q.TRON G11S 410W uses TOPCon N-type cells while Solaria PowerXT 400R Pure Black uses Shingled Mono PERC cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Hanwha Q.TRON G11S 410W achieves 21.3% module efficiency compared to Solaria PowerXT 400R Pure Black's 20.5%, meaning Hanwha Q.TRON G11S 410W converts 0.8 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 Solaria PowerXT 400R Pure Black produces 205.3 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 Hanwha Q.TRON G11S 410W delivers 410W per panel versus 400W for the Solaria PowerXT 400R Pure Black, a 10W difference per module. To build an 8 kW residential system, you would need 20 Hanwha Q.TRON G11S 410W panels or 20 Solaria PowerXT 400R Pure Black 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 Hanwha Q.TRON G11S 410W has a temperature coefficient of -0.29%/°C versus -0.34%/°C for the Solaria PowerXT 400R Pure Black. 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 93.2%. 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 Solaria PowerXT 400R Pure Black 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 Hanwha Q.TRON G11S 410W; 1.5% first year then 0.4%/year for Solaria PowerXT 400R Pure Black), after 25 years the Hanwha Q.TRON G11S 410W should retain approximately 89.4% of original output versus 88.9% for the Solaria PowerXT 400R Pure Black. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Hanwha Q.TRON G11S 410W measures 1722×1134×30mm and weighs 20.8 kg, while the Solaria PowerXT 400R Pure Black measures 1812×1075×40mm at 21.5 kg. 1.95 m² of panel area for the Hanwha Q.TRON G11S 410W versus 1.95 m² for the Solaria PowerXT 400R Pure Black. 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 | Hanwha Q.TRON G11S 410W | Solaria PowerXT 400R Pure Black |
|---|---|---|
| Power | 410W | 400W |
| Efficiency | 21.3% | 20.5% |
| Power Density | 19.5 W/sq ft | 19.1 W/sq ft |
| Cell Type | TOPCon N-type | Shingled Mono PERC |
| Bifacial | No | No |
| Weight | 20.8 kg | 21.5 kg |
| Temp Coefficient | -0.29%/°C | -0.34%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 25 years | 25 years |
| Degradation (Year 1) | 1% | 1.5% |
| Annual Degradation | 0.4% | 0.4% |
| Country | South Korea | USA |
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 20.5% — a 0.8 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.3 kW more total system capacity, or 2 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 -0.34%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.2% of rated power versus 93.2%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
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: Hanwha Q.TRON G11S 410WThe Hanwha Q.TRON G11S 410W delivers 410W versus 400W per panel — 10W more. For an 8 kW system, you need 20 panels with the higher-wattage option versus 20 panels, saving 0 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 Solaria PowerXT 400R Pure Black uses Shingled Mono 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
Solaria PowerXT 400R Pure Black
The Solaria PowerXT 400R Pure Black is the compact residential variant of Solaria's shingled-cell panel line, delivering 400W in a smaller form factor optimized for constrained rooftops. The shingled cell architecture produces a completely uniform black surface — no visible busbars, cell gaps, or gridlines — making it one of the most aesthetically appealing panels on the market. Manufactured in Fremont, California, it qualifies for domestic content bonus ITC credits. The 400W output in a compact footprint makes it suitable for smaller residential roofs where every square foot counts.
Pros
- + Industry-leading all-black aesthetics — completely uniform surface
- + Compact size fits constrained residential rooftops
- + US-manufactured — domestic content ITC bonus eligible
- + Shingled cells improve shade tolerance and eliminate hot spots
- + 25-year dual warranty (product + performance)
- + No busbar visibility for premium curb appeal
Cons
- - 400W output lower than larger-format competitors
- - Higher per-watt cost for the aesthetic and US-made premium
- - Smaller installer network than mainstream brands
- - 20.5% efficiency is good but not class-leading
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
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Residential installations valuing Korean quality with strong warranty.
Choose Solaria PowerXT 400R Pure Black If...
- ✓ Homeowners with visible roof installations who demand the best-looking all-black panel with American manufacturing and domestic content tax benefits.
Our Recommendation
We recommend the Hanwha Q.TRON G11S 410W for most buyers in this comparison. It wins 4 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Solaria PowerXT 400R Pure Black remains a good product, but the Hanwha Q.TRON G11S 410W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Hanwha Q.TRON G11S 410W or Solaria PowerXT 400R Pure Black?
The Hanwha Q.TRON G11S 410W wins this comparison by a clear margin. It leads in efficiency (21.3% vs 20.5%) and matches or exceeds on warranty (25 vs 25 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 Solaria PowerXT 400R Pure Black?
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 0.8 percentage points translates to approximately 10W per panel under standard test conditions.
Which has a better warranty, Hanwha Q.TRON G11S 410W or Solaria PowerXT 400R Pure Black?
The Hanwha Q.TRON G11S 410W comes with a 25-year product warranty and 25-year performance guarantee. The Solaria PowerXT 400R Pure Black offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Hanwha Q.TRON G11S 410W has a temperature coefficient of -0.29%/°C and the Solaria PowerXT 400R Pure Black is -0.34%/°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 Solaria PowerXT 400R Pure Black 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 20 Solaria PowerXT 400R Pure Black panels (400W 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