Solid all-round for its segment
The DAH DHN-72R20/DG series are modules designed for high energy production under real-world conditions, even when the roof or ground is not perfectly illuminated throughout the day. The use of n-type TOPCon cells helps to minimize energy losses over time and improves the module's performance at higher temperatures and in low light, which is important in Poland's transitional climate. The bifacial design allows for the recovery of additional energy from reflected radiation, particularly on bright roofs, ground-mounted installations, and carport structures. In addition, the dual-glass construction enhances resistance to environmental factors and stresses, which translates to greater predictability in C&I and solar farm installations. The entire system is complemented by an anti-reflective coating, which supports better light absorption at variable angles. This is the choice for investors who want stable performance and a durable structure, rather than just good catalog specifications.
Ranking
Signals from the data
Commercial, utility-scale, shaded-installations and hot-climate.
A maximum efficiency of 23.14% matches the Techwise Sun-Pursuit Plus (23.14%) and marginally outperforms the LONGi Hi-MO 7 (23.1%), placing the series at the absolute front of the comparison set. The Leapton LP182-M-78-NH, with an identical peak power of 625 Wp, achieves only 22.36% – a difference of 0.78 percentage points.
The N-type TOPCon cells of the DHN-72R20/DG series achieve a Pmax temperature coefficient of -0.29%/°C versus a typical -0.35%/°C for PERC technology. At a module temperature of 65°C – realistic for Polish summers – this translates to approximately 1.8 percentage points higher yield during peak hours.
The manufacturer guarantees ≥89.4% of nominal power after 25 years and ≥87.4% after 30 years, with first-year degradation ≤1%. The extended warranty horizon significantly reduces financial risk in C&I and utility-scale installations where bankability is critical for debt financing.
The glass-glass construction improves resistance to PID, microcracks, moisture ingress, and mechanical stress compared to standard glass-backsheet modules. A bifaciality factor of ~80% enables an additional 5–25% energy gain from reflected irradiance in ground-mount installations, carports, and light-colored rooftops.
DAH Solar maintained BNEF Tier 1 status continuously from Q1 through Q4 2025 (also confirmed in Q3 2025), a requirement imposed by most banks and infrastructure funds when financing projects above 1 MWp. The manufacturer debuted in the TaiyangNews TOP Solar Modules ranking in September 2025, placing 9th.
The dual-glass construction results in a module weight of ~32.6 kg, compared to the ~26–28 kg typical of framed glass-backsheet modules at similar power ratings. In high-density rooftop installations, this requires a structural load-bearing assessment, adding the cost of an engineering review or roof reinforcement.
- Efficiency of 22.8% matches the TOPCon 600-650W median
- At 227.7 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
- Temperature coefficient of -0.29%/°C matches the TOPCon 600-650W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- Ranked #3073 out of 14005 panels for efficiency in the database
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 615 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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