Warranty pick, no clear weak spot
The Aptos Solar DNA 120 Bifacial panel series redefines performance standards through the use of patented Dual Nano-Absorber technology, which allows for maximizing energy yields even in unfavorable lighting conditions. A key differentiator of this line is its bifacial double-sided design, enabling the absorption of light reflected from the ground, which directly translates to higher electricity production compared to traditional single-sided modules. The construction, based on half-cut cells, effectively reduces resistive losses and minimizes the risk of hot spots, which, combined with exceptional resistance to micro-cracks, guarantees many years of trouble-free operation. These panels are primarily dedicated to investors seeking a compromise between aesthetics and extreme mechanical durability, as the DNA 120 design withstands wind and snow loads significantly exceeding market standards. This solution is ideal for ground-mounted installations and modern commercial systems, where the lowest levelized cost of energy (LCOE) is key. By choosing this series, the user gains above-average performance at high temperatures and an elegant design that blends perfectly with modern architecture, eliminating the problem of unsightly installations while maintaining the highest technical parameters.
Ranking
Signals from the data
Commercial, shaded-installations and hot-climate.
Top 13% of the PERC 350-400 W segment, against a median of 25 yrs.
Top 18% of the PERC 350-400 W segment, against a median of 199.0.
Top 19% of the PERC 350-400 W segment, against a median of 19.90%.
The efficiency of 19.73–20.28% significantly surpasses direct competitors: Silfab Prime NTC (18.7%), Solitek SOLRIF N Terracota (18.34%), and Solitek SOLID Bifacial (19.57%). The advantage over Silfab Prime NTC is even +1.58 percentage points, which, when installed with 10 kWp, could translate to a real annual gain of approximately 150–200 kWh.
The guaranteed degradation rate is a maximum of 2% after the first year, followed by 0.54%/year – significantly lower than the industry average of 0.7–0.8%/year (according to solarreviews.com). After 30 years, the panel retains a minimum of 82.34% of its nominal power, which for a 10 kWp installation translates to a higher cumulative energy yield compared to a standard PERC panel with a degradation rate of 0.7%/year.
The dual-sided construction allows for the absorption of light reflected from the ground, generating an additional 5-15% in production compared to single-sided panels – this is particularly beneficial in ground-mounted installations on bright surfaces (sand, snow, light geomembrane). Of the four panel types, only the Solitek SOLID Bifacial offers this feature.
Both the product warranty and the performance warranty cover a period of 30 years – exceeding the industry standard (Silfab Prime NTC and Solitek offer 25-year power warranties). An additional advantage is the low stated failure rate, below 0.01% (manufacturer data, aptossolar.com).
The panel withstands wind loads of 6200 Pa and snow loads of 5400 Pa – significantly exceeding the IEC 61215 standard (2400 Pa). This makes it suitable for regions with heavy snowfall and strong winds, without the need for additional reinforcing frames.
PER (Passivated Emitter and Rear Cell) solar cells are an older generation compared to N-type TOPCon technology used by leading manufacturers (Jinko Tiger Neo, LONGi Hi-MO 6). TOPCon exhibits a lower LID (Light-Induced Degradation) degradation rate and a better temperature coefficient of power (typically -0.29%/°C vs -0.36%/°C for this series), which could translate to a measurably lower cumulative yield over a 30-year system lifespan.
Aptos Solar is not included in the Bloomberg NEF Tier 1 list (Q1 2026) – the company is classified as Tier 2. This could pose a challenge when seeking bank financing for commercial and utility-scale projects, as financial institutions often require only Tier 1 companies as a condition for lending.
Aptos Solar has only been operating in the market since 2019, which means there is a lack of long-term operational data to confirm the durability of their products in real-world conditions. The promised 30-year warranty from a company with only 6 years of experience raises legitimate questions about its ability to fulfill service obligations throughout the entire lifespan of the installations.
- At 20.3% efficiency, this panel is 0.8pp above typical PERC 0-400W modules (median: 19.4%)
- 202.8 W/m² power density - 8.4 W/m² more than PERC 0-400W median (194.4 W/m²), more power per roof area
- Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
- Weight of 19.5 kg is typical for PERC 0-400W panels
- In the top 85% for efficiency among all PERC panels
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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