Efficiency leader, no clear weak spot
The DAH DHN-48Z16/DG(RR) series, with a power output of 380-400W, is designed for modern installations where both performance and aesthetics are important. These are bifacial modules with double glazing, which allows them to better withstand mechanical loads and maintain stable parameters for longer, even in harsh conditions. The use of N-type TOPCon cells helps to minimize losses and supports high productivity, even in situations with lower sunlight and higher temperatures.
A key feature of this series is the durable color-protecting coatings, which make it easy to match the panels to the aesthetics of the roof or facade without compromising performance. In practice, this solves a common problem for investors: how to combine architectural requirements with the real cost-effectiveness of the installation.
This is a good choice for single-family homes, commercial buildings, and BIPV projects - from roofs to facades, railings, or canopies, where the dual-sided and robust construction provides an advantage.
Ranking
Signals from the data
Residential, commercial and BIPV.
Top 24% of the TOPCon 350-400 W segment, against a median of 18.20%.
Top 24% of the TOPCon 350-400 W segment, against a median of 181.8.
N-type TOPCon technology delivers a Pmax temperature coefficient of -0.29%/°C, compared to -0.35%/°C typical of standard PERC cells. This ~17% improvement translates into meaningfully higher energy yield during summer months, when module temperatures routinely exceed 50°C.
The manufacturer guarantees ≥89.4% of rated power after 25 years and ≥87.4% after 30 years, surpassing the industry standard — most competitors, including the DMEGC GH400M10T, offer 25-year warranties with ~84.8% retention. The extended warranty horizon reduces financial risk for projects with CAPEX amortized over multiple decades.
A bifaciality factor of 80% (confirmed in the ENF datasheet) enables a real-world energy yield gain of 10–20% under favorable albedo conditions (light-colored substrate, snow, gravel). The glass-glass construction additionally eliminates LeTID risk and extends the module's mechanical service life.
DAH Solar has maintained continuous BloombergNEF Tier 1 status in Q1 and Q3 2025, confirming its ability to support project finance and reducing counterparty risk in long-term procurement agreements.
Peak efficiency of 20.02% substantially outperforms the comparable DMEGC GH400M10T-B48HST (15.48%) and is on par with the Solaria PowerXT (20.2%) at the same 400 Wp rating, enabling a smaller installation footprint for equivalent energy output.
The glass-glass construction raises module weight to 23.9 kg, approximately 3–4 kg more than typical single-glass frameless monofacial modules (~20–21 kg). Retrofits on existing rooftops may require an additional structural load analysis, particularly for large-scale BIPV installations.
The DHN-48Z16/DG(RR) series is a colored variant designed specifically for architectural and BIPV applications, resulting in narrower distribution and potentially longer lead times compared to standard black/white variants on the same platform (e.g., DHN-48Z16-DG(BW)), which are stocked by a broader network of distributors.
- At 19.5% efficiency, this panel is 3.5pp above typical TOPCon 0-400W modules (median: 16.0%)
- Power density of 195.2 W/m² packs 35.4 W/m² more into the same footprint vs TOPCon 0-400W median (159.8 W/m²)
- Temperature coefficient of -0.29%/°C matches the TOPCon 0-400W median
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
- Ranked #12656 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 390 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.
Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here