Maxeon Maxeon 6 AC 440W vs Aptos Solar DNA-144-BF26 440W
The Maxeon Maxeon 6 AC 440W wins this comparison by a decisive margin. It leads in efficiency (22.5% vs 20.21%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Maxeon Maxeon 6 AC 440W is the stronger choice.
Key Differences
- • Both panels are rated at 440W, so the comparison comes down to efficiency, warranty, and technology.
- • Maxeon Maxeon 6 AC 440W achieves 22.5% efficiency vs 20.21% for the other, a 2.3 percentage point gap.
- • Both carry matching 25-year product warranties.
- • Maxeon Maxeon 6 AC 440W has a superior temperature coefficient of -0.27%/°C vs -0.35%/°C, retaining more power in hot climates.
- • Maxeon Maxeon 6 AC 440W uses IBC (Interdigitated Back Contact) cells while Aptos Solar DNA-144-BF26 440W uses PERC Mono Bifacial cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Maxeon Maxeon 6 AC 440W achieves 22.5% module efficiency compared to Aptos Solar DNA-144-BF26 440W's 20.21%, meaning Maxeon Maxeon 6 AC 440W converts 2.3 percentage points more sunlight into electricity per square meter. In practical terms, the Maxeon Maxeon 6 AC 440W produces 203.5 watts per square meter of panel area while the Aptos Solar DNA-144-BF26 440W produces 202.1 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 440W under standard test conditions (STC), requiring 19 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 Maxeon Maxeon 6 AC 440W has a temperature coefficient of -0.27%/°C versus -0.35%/°C for the Aptos Solar DNA-144-BF26 440W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Maxeon Maxeon 6 AC 440W retains 94.6% 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 Maxeon Maxeon 6 AC 440W is backed by a 25-year product warranty and 25-year performance guarantee, while the Aptos Solar DNA-144-BF26 440W offers 25-year product and 30-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (0.25% first year then 0.25%/year for Maxeon Maxeon 6 AC 440W; 1% first year then 0.54%/year for Aptos Solar DNA-144-BF26 440W), after 25 years the Maxeon Maxeon 6 AC 440W should retain approximately 93.8% of original output versus 86.0% for the Aptos Solar DNA-144-BF26 440W. This 7.8 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Maxeon Maxeon 6 AC 440W measures 2067×1046×30mm and weighs 22 kg, while the Aptos Solar DNA-144-BF26 440W measures 2095×1039×40mm at 24.1 kg. 2.16 m² of panel area for the Maxeon Maxeon 6 AC 440W versus 2.18 m² for the Aptos Solar DNA-144-BF26 440W. The Maxeon Maxeon 6 AC 440W is 2.1 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 42 kg. Similar footprints mean both panels fit comparably on standard residential rooftop configurations.
Specification Comparison
| Specification | Maxeon Maxeon 6 AC 440W | Aptos Solar DNA-144-BF26 440W |
|---|---|---|
| Power | 440W | 440W |
| Efficiency | 22.5% | 20.21% |
| Power Density | 18.9 W/sq ft | 18.8 W/sq ft |
| Cell Type | IBC (Interdigitated Back Contact) | PERC Mono Bifacial |
| Bifacial | Yes | Yes |
| Weight | 22 kg | 24.1 kg |
| Temp Coefficient | -0.27%/°C | -0.35%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 3600 Pa | 4000 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 0.25% | 1% |
| Annual Degradation | 0.25% | 0.54% |
| Country | Malaysia | Vietnam |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Maxeon Maxeon 6 AC 440WThe Maxeon Maxeon 6 AC 440W achieves 22.5% efficiency versus 20.21% — a 2.3 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: Maxeon Maxeon 6 AC 440WThe Maxeon Maxeon 6 AC 440W has a better temperature coefficient of -0.27%/°C versus -0.35%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.6% of rated power versus 93.0%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Maxeon Maxeon 6 AC 440WMaxeon Maxeon 6 AC 440W degrades more slowly at 0.25% per year versus 0.54%. After 25 years, expect 93.8% vs 86.0% of original output for Maxeon Maxeon 6 AC 440W and Aptos Solar DNA-144-BF26 440W respectively.
4. Power Output
Winner: TieBoth panels deliver 440W — identical power output per panel. System cost per watt will be the deciding factor.
5. Cell Technology
Winner: Maxeon Maxeon 6 AC 440WThe Maxeon Maxeon 6 AC 440W uses IBC (Interdigitated Back Contact): IBC (Interdigitated Back Contact) moves all electrical contacts to the rear of the cell, maximizing front-side light capture for the highest possible efficiency. The Aptos Solar DNA-144-BF26 440W uses PERC Mono Bifacial: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. IBC (Interdigitated Back Contact) represents a newer generation technology with a longer performance runway as manufacturing matures.
Maxeon Maxeon 6 AC 440W
The Maxeon 6 AC 440W is designed for commercial applications, delivering 440W with IBC technology in a commercial form factor with integrated microinverter option.
Pros
- + IBC technology for commercial use
- + Strong 22.5% efficiency
- + Low degradation
- + Excellent shade tolerance
Cons
- - Commercial pricing
- - Larger form factor
- - Limited residential application
Aptos Solar DNA-144-BF26 440W
Aptos Solar DNA-144-BF26 is a 440W bifacial all-black panel with 144 half-cut cells and up to 30% rear-side energy gain for commercial applications.
Pros
- + Bifacial design with up to 30% additional energy
- + 440W high output with 144 half-cut cells
- + All-black aesthetic
- + 30-year performance warranty
Cons
- - Bifacial gain requires optimized mounting
- - Larger panel dimensions
- - 20.21% efficiency is moderate
Choose Maxeon Maxeon 6 AC 440W 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
- ✓ Commercial rooftop installations seeking premium IBC performance.
Choose Aptos Solar DNA-144-BF26 440W If...
- ✓ Commercial ground-mount and tracker systems seeking bifacial energy gain with an all-black panel design.
Our Recommendation
The Maxeon Maxeon 6 AC 440W is the decisive winner in this solar panel comparison, outperforming the Aptos Solar DNA-144-BF26 440W in 4 of 5 dimensions. Unless you have a specific requirement that the Aptos Solar DNA-144-BF26 440W uniquely addresses, the Maxeon Maxeon 6 AC 440W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Maxeon Maxeon 6 AC 440W or Aptos Solar DNA-144-BF26 440W?
The Maxeon Maxeon 6 AC 440W wins this comparison by a decisive margin. It leads in efficiency (22.5% vs 20.21%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Maxeon Maxeon 6 AC 440W is the stronger choice.
Which panel is more efficient, Maxeon Maxeon 6 AC 440W or Aptos Solar DNA-144-BF26 440W?
The Maxeon Maxeon 6 AC 440W at 22.5% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 2.3 percentage points translates to approximately 0W per panel under standard test conditions.
Which has a better warranty, Maxeon Maxeon 6 AC 440W or Aptos Solar DNA-144-BF26 440W?
The Maxeon Maxeon 6 AC 440W comes with a 25-year product warranty and 25-year performance guarantee. The Aptos Solar DNA-144-BF26 440W offers 25-year product and 30-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Maxeon Maxeon 6 AC 440W has a temperature coefficient of -0.27%/°C and the Aptos Solar DNA-144-BF26 440W is -0.35%/°C. Maxeon Maxeon 6 AC 440W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Maxeon Maxeon 6 AC 440W vs Aptos Solar DNA-144-BF26 440W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Maxeon Maxeon 6 AC 440W panels (440W each) or 19 Aptos Solar DNA-144-BF26 440W panels (440W each). Both require the same number of panels.
Related Resources
Last updated: February 2026