Panasonic EverVolt HK 430W vs Aptos Solar DNA-120-MF26 370W
The Panasonic EverVolt HK 430W wins this comparison by a decisive margin. It leads in efficiency (22.2% vs 20.28%) and matches or exceeds on warranty (25 vs 25 years). 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-MF26 370W is rated at 370W, a 60W difference.
- • Panasonic EverVolt HK 430W achieves 22.2% efficiency vs 20.28% for the other, a 1.9 percentage point gap.
- • Both carry matching 25-year product warranties.
- • Panasonic EverVolt HK 430W has a superior temperature coefficient of -0.26%/°C vs -0.36%/°C, retaining more power in hot climates.
- • Panasonic EverVolt HK 430W uses HJT (Heterojunction) cells while Aptos Solar DNA-120-MF26 370W uses PERC Mono 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-MF26 370W's 20.28%, meaning Panasonic EverVolt HK 430W converts 1.9 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-MF26 370W produces 200.4 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 Panasonic EverVolt HK 430W delivers 430W per panel versus 370W for the Aptos Solar DNA-120-MF26 370W, a 60W difference per module. To build an 8 kW residential system, you would need 19 Panasonic EverVolt HK 430W panels or 22 Aptos Solar DNA-120-MF26 370W panels. Choosing the higher-wattage option saves 3 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 Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C versus -0.36%/°C for the Aptos Solar DNA-120-MF26 370W. 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 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 Panasonic EverVolt HK 430W is backed by a 25-year product warranty and 25-year performance guarantee, while the Aptos Solar DNA-120-MF26 370W offers 25-year product and 30-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 HK 430W; 1% first year then 0.54%/year for Aptos Solar DNA-120-MF26 370W), 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-MF26 370W. 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-MF26 370W measures 1762×1048×35mm at 20.5 kg. 1.95 m² of panel area for the Panasonic EverVolt HK 430W versus 1.85 m² for the Aptos Solar DNA-120-MF26 370W. The Aptos Solar DNA-120-MF26 370W 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 Aptos Solar DNA-120-MF26 370W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Panasonic EverVolt HK 430W | Aptos Solar DNA-120-MF26 370W |
|---|---|---|
| Power | 430W | 370W |
| Efficiency | 22.2% | 20.28% |
| Power Density | 20.5 W/sq ft | 18.6 W/sq ft |
| Cell Type | HJT (Heterojunction) | PERC Mono |
| Bifacial | Yes | No |
| Weight | 22.5 kg | 20.5 kg |
| Temp Coefficient | -0.26%/°C | -0.36%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 4000 Pa |
| Product Warranty | 25 years | 25 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 20.28% — a 1.9 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.8 kW more total system capacity, or 9 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 -0.36%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 92.8%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Panasonic EverVolt HK 430WPanasonic 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-MF26 370W respectively.
4. Power Output
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W delivers 430W versus 370W per panel — 60W more. For an 8 kW system, you need 19 panels with the higher-wattage option versus 22 panels, saving 3 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-MF26 370W uses PERC Mono: 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-MF26 370W
Aptos Solar DNA-120-MF26 is a 370W all-black residential panel with DNA technology, designed for aesthetic rooftop installations with strong value pricing.
Pros
- + All-black design for aesthetic residential rooftops
- + Lightweight at 20.5 kg
- + Budget-friendly price per watt
- + 30-year performance warranty
Cons
- - Lower 370W output requires more panels
- - 20.28% efficiency below premium tier
- - No bifacial option in this model
Choose Panasonic EverVolt HK 430W 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 want maximum output retention over the system's 25-30 year lifespan
- ✓ You prefer newer cell technology with a longer performance improvement runway
Choose Aptos Solar DNA-120-MF26 370W If...
- ✓ Budget-conscious homeowners who want an attractive all-black panel with reliable performance and long warranty coverage.
Our Recommendation
The Panasonic EverVolt HK 430W is the decisive winner in this solar panel comparison, outperforming the Aptos Solar DNA-120-MF26 370W in 5 of 5 dimensions. Unless you have a specific requirement that the Aptos Solar DNA-120-MF26 370W uniquely addresses, the Panasonic EverVolt HK 430W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Panasonic EverVolt HK 430W or Aptos Solar DNA-120-MF26 370W?
The Panasonic EverVolt HK 430W wins this comparison by a decisive margin. It leads in efficiency (22.2% vs 20.28%) and matches or exceeds on warranty (25 vs 25 years). 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-MF26 370W?
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 1.9 percentage points translates to approximately 60W per panel under standard test conditions.
Which has a better warranty, Panasonic EverVolt HK 430W or Aptos Solar DNA-120-MF26 370W?
The Panasonic EverVolt HK 430W comes with a 25-year product warranty and 25-year performance guarantee. The Aptos Solar DNA-120-MF26 370W offers 25-year product and 30-year performance warranties. Both offer identical warranty terms.
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-MF26 370W is -0.36%/°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-MF26 370W 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 22 Aptos Solar DNA-120-MF26 370W panels (370W each). The Panasonic EverVolt HK 430W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026