Solid all-round for its segment
The DAH DHN-60R18/DG(BB) 495~520W series are modules designed to maximize power output from the same roof or ground area - thanks to high efficiency and optimized performance at elevated temperatures, which effectively helps to reduce summer production losses. The use of N-type cells in TOPCon technology ensures stable performance over time and better resistance to typical degradation mechanisms, which in practice means more predictable yields over the years.
The double glass construction strengthens the module and improves resistance to loads and environmental conditions, making this series suitable not only for residential buildings, but also for commercial installations, flat roofs, and ground-mounted projects. Furthermore, the sleek black design makes it easy to match with modern rooflines and structures.
A key advantage over many standard panels is the combination of long linear warranties with a technology focused on long-term performance - for investors who want to minimize risk and maintenance costs.
Ranking
Signals from the data
Residential, commercial and hot-climate.
The Pmax temperature coefficient of -0.29%/°C significantly outperforms standard PERC modules (-0.35 to -0.40%/°C). On hot summer days with a cell temperature of 70°C, the DHN-60R18 series incurs a power loss of ~14.2% versus ~17.5% for a typical PERC module — translating to measurably higher energy yield during peak-generation season.
The manufacturer guarantees ≥89.4% of rated power after 25 years and ≥87.4% after 30 years. Peer comparables in this segment (HT-SAAE, TCL Zhonghuan) do not offer an extended 30-year warranty — a meaningful differentiator for commercial project financing with long debt-repayment horizons.
The module withstands snow loads up to 5,400 Pa and wind loads up to 2,400 Pa. The dual-glass architecture eliminates backsheet perforation risk and significantly extends resistance to moisture ingress and PID, making it particularly well-suited for ground-mount and flat-roof installations.
The bifacial cell architecture, paired with a suitable ground surface (white membrane, gravel, snow), delivers 5–25% additional energy yield compared to a monofacial module of equivalent nameplate power. This advantage is especially valuable in ground-mount systems and flat-roof installations with high-albedo surfaces.
DAH Solar has maintained BloombergNEF Tier 1 status for consecutive quarters (confirmed Q4 2025 and Q1 2026), reducing financing risk and satisfying the bankability requirements of most lenders for PV projects above 100 kWp.
The series reaches a maximum module efficiency of 23.0%, while the HT-SAAE HT54-18X(N) achieves 23.8% and the TCL Zhonghuan Back Contact 23.5%. On a roof with limited area, the 0.8 percentage-point gap translates to approximately 3–4% less peak power for an identical module count.
The double-glass construction increases module weight to ~27 kg, approximately 25–30% heavier than comparable monofacial modules with a polymer backsheet (~20–22 kg). This may require structural load verification and complicates single-person handling, raising installation costs on buildings with lower load-bearing capacity.
- Efficiency of 22.6% matches the TOPCon 500-550W median
- Power density of 225.5 W/m² matches the TOPCon 500-550W median
- Temperature coefficient of -0.29%/°C matches the TOPCon 500-550W median
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
- Ranked #3905 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 510 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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