Solid all-round for its segment
The DAH DHN-48Z16/DG photovoltaic panel series redefines efficiency standards through the use of patented Full-Screen technology, which completely eliminates the protruding frame at the module edges. This solution effectively solves the problem of dust, sediment, and water accumulation, which in traditional designs leads to power drops and the formation of harmful hot-spots. Thanks to the perfectly smooth surface, rainfall automatically removes contaminants, ensuring constant exposure of the cells to the sun without the need for frequent maintenance. These modules use advanced N-type TOPCon cells, which are characterized by higher efficiency and significantly lower degradation over time compared to standard P-type technologies. The use of Double-Glass construction additionally strengthens the module's resistance to external factors and moisture, extending its lifespan to the maximum. This series is primarily dedicated to homeowners and businesses that value maximum maintenance-free operation and high aesthetics of the installation, especially on roofs with a low tilt angle. Compared to the competition, the DAH DHN-48Z16/DG stands out with its unique design and realistically higher annual yields, resulting from better light permeability and the absence of losses caused by edge contamination. This is the choice for investors focusing on technological advantage and energy security for decades.
Ranking
Signals from the data
Residential and commercial.
The N-type TOPCon cells in this series exhibit a Pmax temperature coefficient of -0.29%/°C, meaningfully better than typical PERC modules (-0.34 to -0.36%/°C). At a roof operating temperature of 65°C, the difference versus PERC translates to approximately 2–3% higher output at peak generation.
The frameless front construction eliminates the accumulation of dust, soiling, and water at the module edges — the primary cause of hotspots and localized power losses in conventional framed modules. DAH Solar claims a 6–15% increase in annual energy yield versus standard framed modules, with the greatest benefit on low-tilt roofs (<15°).
The manufacturer guarantees at least 87.4% of nominal power after 30 years. By comparison, the Waaree ARKA offers only a 25-year power warranty, and typical Chinese Tier-1 modules top out at 25 years with degradation to ~84.8%, making DAH's warranty clearly superior in this respect.
The dual-glass construction (in place of a rear backsheet) significantly improves resistance to moisture, ammonia, and UV radiation, resulting in lower long-term degradation rates. The bifacial design yields an additional 5–15% energy gain from ground-reflected irradiance (albedo), a measurable benefit for installations on light-colored or gravel rooftops.
DAH Solar maintains BNEF Tier 1 Bankable Manufacturer status continuously throughout 2025 (confirmed Q1 and Q4 2025) and ranked 9th in the TOP SOLAR MODULES ranking (September 2025). Bankability is critical for loan- or lease-financed installations and for insurance risk assessments.
The double glass construction results in a module weight of 23.9 kg, approximately 2–4 kg heavier than standard backsheet modules (~20–21 kg). For a 10 kWp system (approximately 22 modules), this adds up to ~85 kg of additional roof load, which may require a structural engineering assessment on older or lightweight roof structures.
Full-Screen frameless variants require dedicated clamps designed for dual-glass modules; standard aluminum mid-clamps intended for framed modules are incompatible. This may limit contractor options or increase BoS (balance of system) costs by 5–15 PLN per module.
- Efficiency of 22.3% matches the TOPCon 400-450W median
- At 222.7 W/m² power density, roof space requirements are typical for TOPCon 400-450W panels
- Temperature coefficient of -0.29%/°C matches the TOPCon 400-450W median
- At 23.9 kg (1.9 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by DAH Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 445 Wp appear here. The rest cover the whole series.
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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