Panasonic EverVolt HK 430W vs Aptos Solar DNA-120-BF10 460W
The Panasonic EverVolt HK 430W wins this comparison by a clear margin. It leads in efficiency (22.2% vs 21.26%). For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Key Differences
- • Panasonic EverVolt HK 430W is rated at 430W while Aptos Solar DNA-120-BF10 460W is rated at 460W, a 30W difference.
- • Panasonic EverVolt HK 430W achieves 22.2% efficiency vs 21.26% for the other, a 0.9 percentage point gap.
- • Aptos Solar DNA-120-BF10 460W comes with a 30-year product warranty vs 25 years for the other.
- • Panasonic EverVolt HK 430W has a superior temperature coefficient of -0.26%/°C vs -0.35%/°C, retaining more power in hot climates.
- • Panasonic EverVolt HK 430W uses HJT (Heterojunction) cells while Aptos Solar DNA-120-BF10 460W uses PERC Mono Bifacial cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Panasonic EverVolt HK 430W achieves 22.2% module efficiency compared to Aptos Solar DNA-120-BF10 460W's 21.26%, meaning Panasonic EverVolt HK 430W converts 0.9 percentage points more sunlight into electricity per square meter. In practical terms, the Panasonic EverVolt HK 430W produces 220.2 watts per square meter of panel area while the Aptos Solar DNA-120-BF10 460W produces 212.6 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 Aptos Solar DNA-120-BF10 460W delivers 460W per panel versus 430W for the Panasonic EverVolt HK 430W, a 30W difference per module. To build an 8 kW residential system, you would need 19 Panasonic EverVolt HK 430W panels or 18 Aptos Solar DNA-120-BF10 460W panels. Choosing the higher-wattage option saves 1 panel, 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 Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C versus -0.35%/°C for the Aptos Solar DNA-120-BF10 460W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Panasonic EverVolt HK 430W retains 94.8% of its rated power while the other retains 93.0%. 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 Panasonic EverVolt HK 430W is backed by a 25-year product warranty and 25-year performance guarantee, while the Aptos Solar DNA-120-BF10 460W offers 30-year product and 30-year performance coverage. The Aptos Solar DNA-120-BF10 460W provides 5 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (0.5% first year then 0.35%/year for Panasonic EverVolt HK 430W; 1% first year then 0.54%/year for Aptos Solar DNA-120-BF10 460W), after 25 years the Panasonic EverVolt HK 430W should retain approximately 91.1% of original output versus 86.0% for the Aptos Solar DNA-120-BF10 460W. This 5.1 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Panasonic EverVolt HK 430W measures 1722×1134×30mm and weighs 22.5 kg, while the Aptos Solar DNA-120-BF10 460W measures 1908×1134×35mm at 24.5 kg. 1.95 m² of panel area for the Panasonic EverVolt HK 430W versus 2.16 m² for the Aptos Solar DNA-120-BF10 460W. The Panasonic EverVolt HK 430W is 2.0 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 40 kg. The more compact Panasonic EverVolt HK 430W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Panasonic EverVolt HK 430W | Aptos Solar DNA-120-BF10 460W |
|---|---|---|
| Power | 430W | 460W |
| Efficiency | 22.2% | 21.26% |
| Power Density | 20.5 W/sq ft | 19.8 W/sq ft |
| Cell Type | HJT (Heterojunction) | PERC Mono Bifacial |
| Bifacial | Yes | Yes |
| Weight | 22.5 kg | 24.5 kg |
| Temp Coefficient | -0.26%/°C | -0.35%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 4000 Pa |
| Product Warranty | 25 years | 30 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 0.5% | 1% |
| Annual Degradation | 0.35% | 0.54% |
| Country | Japan | Vietnam |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W achieves 22.2% efficiency versus 21.26% — a 0.9 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: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W has a better temperature coefficient of -0.26%/°C versus -0.35%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 93.0%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Aptos Solar DNA-120-BF10 460WAptos Solar DNA-120-BF10 460W leads with a 30-year product warranty versus 25 years. Panasonic EverVolt HK 430W degrades more slowly at 0.35% per year versus 0.54%. After 25 years, expect 91.1% vs 86.0% of original output for Panasonic EverVolt HK 430W and Aptos Solar DNA-120-BF10 460W respectively.
4. Power Output
Winner: Aptos Solar DNA-120-BF10 460WThe Aptos Solar DNA-120-BF10 460W delivers 460W versus 430W per panel — 30W more. For an 8 kW system, you need 18 panels with the higher-wattage option versus 19 panels, saving 1 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W 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 Aptos Solar DNA-120-BF10 460W uses PERC Mono Bifacial: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. HJT (Heterojunction) represents a newer generation technology with a longer performance runway as manufacturing matures.
Panasonic EverVolt HK 430W
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt HK delivered 430W using HJT technology with Panasonic's renowned build quality and 25-year warranty.
Pros
- + Japanese engineering quality
- + Excellent HJT temperature coefficient
- + 25-year warranty
- + Strong brand trust
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
Aptos Solar DNA-120-BF10 460W
Aptos Solar DNA-120-BF10 is a 460W bifacial panel with up to 30% rear-side energy gain, featuring 120 half-cut cells and DNA patented technology for commercial applications.
Pros
- + Bifacial design with up to 30% additional energy from rear side
- + 460W high output for commercial systems
- + 30-year dual warranty
- + DNA technology improves heat tolerance
Cons
- - Bifacial gain depends on mounting and surface reflectivity
- - Larger format panel
- - Slightly heavier than monofacial variant
Choose Panasonic EverVolt HK 430W 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 Aptos Solar DNA-120-BF10 460W If...
- ✓ 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 30+ years
- ✓ Commercial ground-mount and carport installations where bifacial rear-side generation can maximize energy yield.
Our Recommendation
We recommend the Panasonic EverVolt HK 430W for most buyers in this comparison. It wins 3 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Aptos Solar DNA-120-BF10 460W remains a good product, but the Panasonic EverVolt HK 430W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Panasonic EverVolt HK 430W or Aptos Solar DNA-120-BF10 460W?
The Panasonic EverVolt HK 430W wins this comparison by a clear margin. It leads in efficiency (22.2% vs 21.26%). For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Which panel is more efficient, Panasonic EverVolt HK 430W or Aptos Solar DNA-120-BF10 460W?
The Panasonic EverVolt HK 430W at 22.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.9 percentage points translates to approximately 30W per panel under standard test conditions.
Which has a better warranty, Panasonic EverVolt HK 430W or Aptos Solar DNA-120-BF10 460W?
The Panasonic EverVolt HK 430W comes with a 25-year product warranty and 25-year performance guarantee. The Aptos Solar DNA-120-BF10 460W offers 30-year product and 30-year performance warranties. Aptos Solar DNA-120-BF10 460W provides 5 additional years of product coverage.
Which panel performs better in hot weather?
The Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C and the Aptos Solar DNA-120-BF10 460W is -0.35%/°C. Panasonic EverVolt HK 430W 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 HK 430W vs Aptos Solar DNA-120-BF10 460W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Panasonic EverVolt HK 430W panels (430W each) or 18 Aptos Solar DNA-120-BF10 460W panels (460W each). The Aptos Solar DNA-120-BF10 460W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026