Panasonic EverVolt 410 vs Hanwha Q.TRON G11S 410W
The Panasonic EverVolt 410 wins this comparison by a clear margin. It leads in efficiency (21.5% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Panasonic EverVolt 410 is the stronger choice.
Key Differences
- • Both panels are rated at 410W, so the comparison comes down to efficiency, warranty, and technology.
- • Panasonic EverVolt 410 achieves 21.5% efficiency vs 21.3% for the other, a 0.2 percentage point gap.
- • Both carry matching 25-year product warranties.
- • Panasonic EverVolt 410 has a superior temperature coefficient of -0.26%/°C vs -0.29%/°C, retaining more power in hot climates.
- • Panasonic EverVolt 410 uses HJT (Heterojunction) cells while Hanwha Q.TRON G11S 410W uses TOPCon N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Panasonic EverVolt 410 achieves 21.5% module efficiency compared to Hanwha Q.TRON G11S 410W's 21.3%, meaning Panasonic EverVolt 410 converts 0.2 percentage points more sunlight into electricity per square meter. In practical terms, the Panasonic EverVolt 410 produces 210.0 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
Both panels are rated at 410W under standard test conditions (STC), requiring 20 panels each to build an 8 kW system. With identical wattage ratings, the power output dimension is a draw and does not favor either panel. The real differentiators become efficiency density, temperature behavior, and long-term degradation rates which determine actual field performance beyond the nameplate rating.
Temperature Coefficient
The Panasonic EverVolt 410 has a temperature coefficient of -0.26%/°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 Panasonic EverVolt 410 retains 94.8% 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 Panasonic EverVolt 410 is backed by a 25-year product warranty and 25-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 (0.5% first year then 0.35%/year for Panasonic EverVolt 410; 1% first year then 0.4%/year for Hanwha Q.TRON G11S 410W), after 25 years the Panasonic EverVolt 410 should retain approximately 91.1% of original output versus 89.4% for the Hanwha Q.TRON G11S 410W. This 1.7 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Panasonic EverVolt 410 measures 1722×1134×30mm and weighs 21.5 kg, while the Hanwha Q.TRON G11S 410W measures 1722×1134×30mm at 20.8 kg. 1.95 m² of panel area for the Panasonic EverVolt 410 versus 1.95 m² for the Hanwha Q.TRON G11S 410W. 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 | Panasonic EverVolt 410 | Hanwha Q.TRON G11S 410W |
|---|---|---|
| Power | 410W | 410W |
| Efficiency | 21.5% | 21.3% |
| Power Density | 19.5 W/sq ft | 19.5 W/sq ft |
| Cell Type | HJT (Heterojunction) | TOPCon N-type |
| Bifacial | Yes | No |
| Weight | 21.5 kg | 20.8 kg |
| Temp Coefficient | -0.26%/°C | -0.29%/°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) | 0.5% | 1% |
| Annual Degradation | 0.35% | 0.4% |
| Country | Japan | South Korea |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 achieves 21.5% efficiency versus 21.3% — a 0.2 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.0 kW more total system capacity, or 0 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 has a better temperature coefficient of -0.26%/°C versus -0.29%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 94.2%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Panasonic EverVolt 410Panasonic EverVolt 410 degrades more slowly at 0.35% per year versus 0.4%. After 25 years, expect 91.1% vs 89.4% of original output for Panasonic EverVolt 410 and Hanwha Q.TRON G11S 410W respectively.
4. Power Output
Winner: TieBoth panels deliver 410W — identical power output per panel. System cost per watt will be the deciding factor.
5. Cell Technology
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 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. 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. HJT (Heterojunction) represents a newer generation technology with a longer performance runway as manufacturing matures.
Panasonic EverVolt 410
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt 410 offered Panasonic's HJT technology at a slightly more accessible price point while maintaining premium quality.
Pros
- + Panasonic brand quality
- + HJT cell technology
- + Good temperature performance
- + 25-year warranty
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
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 Panasonic EverVolt 410 If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ 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
- ✓ No longer available for new installations.
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 Panasonic EverVolt 410 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 Hanwha Q.TRON G11S 410W remains a good product, but the Panasonic EverVolt 410 delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Panasonic EverVolt 410 or Hanwha Q.TRON G11S 410W?
The Panasonic EverVolt 410 wins this comparison by a clear margin. It leads in efficiency (21.5% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Panasonic EverVolt 410 is the stronger choice.
Which panel is more efficient, Panasonic EverVolt 410 or Hanwha Q.TRON G11S 410W?
The Panasonic EverVolt 410 at 21.5% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.2 percentage points translates to approximately 0W per panel under standard test conditions.
Which has a better warranty, Panasonic EverVolt 410 or Hanwha Q.TRON G11S 410W?
The Panasonic EverVolt 410 comes with a 25-year product warranty and 25-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 Panasonic EverVolt 410 has a temperature coefficient of -0.26%/°C and the Hanwha Q.TRON G11S 410W is -0.29%/°C. Panasonic EverVolt 410 retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Panasonic EverVolt 410 vs Hanwha Q.TRON G11S 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Panasonic EverVolt 410 panels (410W each) or 20 Hanwha Q.TRON G11S 410W panels (410W each). Both require the same number of panels.
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Last updated: February 2026