--- title: "DAH Solar DHN-54R18/DG(BW)-460W 460W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-54R18/DG(BW)-460W 460W solar panel. Specs: 22.54% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-54r18-dg-bw-460w" updated: 2026-09-11 --- # DAH Solar DHN-54R18/DG(BW)-460W Solid all-round for its segment 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-54R18/DG(BW)-460W - **Series:** DHN-54R18/DG(BW) 450–465W - **Rated power:** 460 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 465 W | Typical | | | Module efficiency | 22.54% | 22.52% | Typical | 3,920 | | Power density | 225.4 | 225.2 | Typical | 3,974 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.4 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.54% | 22.52% | Typical | 3,920 | | Power density | 225.4 | 225.2 | Typical | 3,974 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 53.0 | 52.2 | Typical | 6,794 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 22.54 % - **Voltage at Pmax (Vmp):** 33.90 V - **Current at Pmax (Imp):** 13.57 A - **Open-circuit voltage (Voc):** 39.80 V - **Short-circuit current (Isc):** 14.54 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1800 mm - **Width:** 1134 mm - **Thickness:** 34 mm - **Weight:** 24.4 kg - **Area:** 2.04 m2 - **Power density:** 225.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **Output after 30 years:** 402 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3920 of 14005 | | Power density | 3974 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 6794 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency 0.6–1.9 pp above competing modules** - The module achieves 22.05–22.78% efficiency, while comparable offerings from Jinko Solar JS182MHC120 and JS Solar top out at 21.48%, and Vikram Solar SOMERA at 20.91%. For the same roof area, this translates into measurably higher energy yield without the need to install additional panels. - **Temperature coefficient of -0.29%/°C** - N-type TOPCon technology delivers a Pmax(T) of -0.29%/°C, a significantly better result than typical PERC cells (-0.34 to -0.36%/°C). Under Polish summer conditions—where module temperatures routinely reach 65–70°C—the production advantage can amount to 1.5–2% annually in favor of this series. - **30-year linear power warranty** - The manufacturer guarantees ≥99% of rated power after year 1, ≥89.4% after 25 years, and ≥87.4% after 30 years. Peer comparables in this segment (Jinko JS182MHC120, Vikram SOMERA) standardly offer warranties up to 25 years—DAH extends the protection horizon by 5 years at no additional cost. - **Bifacial design with glass-glass construction** - The dual-glass structure eliminates EVA yellowing and improves mechanical durability, while the bifacial configuration enables an additional 5–15% energy gain from reflected irradiance (white membrane, gravel ballast, snow). N-type TOPCon cells exhibit minimal LID effect (\<0.5%), ensuring stable output from the very first year of operation. - **BNEF Tier 1 – confirmed Q1–Q4 2025** - DAH Solar has maintained BloombergNEF Tier 1 status continuously from at least Q1 2025 through Q4 2025 (confirmed via taiyangnews.info and en.dahsolar.com), meeting the tightened BNEF criteria introduced in 2025 (minimum 10 MW of bank-financed projects). This translates into easier acceptance of installations by insurers and financing institutions. ## Cons - **Weight of 24.4 kg – structural assessment required** - The glass-glass construction results in a module weight of 24.4 kg at dimensions of 1800×1134×30 mm, approximately 15–20% heavier than comparable single-glass modules (~20–21 kg). For retrofits on older roofs (e.g., sheet metal on battens pre-1990), a structural load-bearing assessment is required before specifying this series. ## About this series The DAH DHN-54R18/DG(BW) 450-465W series is designed for installations where actual energy yield throughout the year is more important than performance under ideal laboratory conditions. The use of **n-type TOPCon** cells results in more stable module operation and slower aging, which will be appreciated by investors planning long-term installations. The **double-glass** construction increases resistance to weather conditions and microcracks, making the panels better suited for transport, installation, and long-term loads. An additional advantage is **bifaciality** - the module can utilize reflected light from the ground, which helps improve energy production on roofs, membranes, or ground-mounted installations. The **black frame with white back** design facilitates aesthetics and adaptation to modern designs. This is a good choice for homes, businesses, and farms where durability, predictable yields, and investment security are important. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - At 225.4 W/m² power density, roof space requirements are typical for \*\*TOPCon 450-500W\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - In the top 28% for efficiency among all TOPCon panels ## Questions ### What warranty is offered on the DAH Solar DHN-54R18/DG(BW) panels? The DHN-54R18/DG(BW) series comes with a 25-year product warranty covering manufacturing defects and a 30-year linear power output warranty. After 30 years, the manufacturer guarantees that the modules will retain at least 87.4% of their nominal power. This is one of the longest power warranty schedules available on the market, made possible by the use of more durable n-type TOPCon cells instead of the older PERC technology. ### Do bifacial DAH DHN-54R18/DG(BW) panels deliver a meaningful energy gain on a standard rooftop installation? The bifacial gain is most pronounced on light-colored surfaces, ground-mount systems, or roofs with a white TPO/PVC membrane, where reflected irradiance can contribute an additional 5–25% of energy yield. On a typical dark bituminous roof, the gain will be more modest, in the range of 2–5%. Nevertheless, the bifacial design combined with the dual-glass construction results in better long-term durability and lower degradation rates compared to monofacial modules. ### How much does the DAH DHN-54R18/DG(BW) panel weigh, and can a standard roof structure support it? The module weighs approximately 24.4 kg and measures 1800×1134×30 mm. Prior to installation, it is advisable to commission a structural assessment of the roof, especially on older buildings. Standard Polish residential homes with timber rafter framing generally have no difficulty supporting this load; however, the final determination always rests with a certified installer who evaluates the specific structure on site. ### How does the TOPCon technology in the DHN-54R18/DG(BW) series differ from conventional PERC panels? The n-type TOPCon cells achieve higher efficiency — up to approximately 22.8% in this series — and exhibit a slower power degradation rate over time compared to standard PERC cells. They also feature a superior temperature coefficient (−0.29%/°C versus approximately −0.35%/°C for PERC), which means lower power losses on hot days. In practice, this translates into a higher annual energy yield from the same roof area. ### Are the DAH Solar DHN-54R18/DG(BW) panels suitable for ground-mount utility-scale PV installations? Yes, the DHN-54R18/DG(BW) series is a popular choice for ground-mount applications. The bifacial glass-glass construction allows better utilization of light reflected from bright soil or grass coverage beneath the array. The modules are rated for high resistance to moisture ingress and mechanical loads, which is critical for open-field exposure. DAH Solar is a Bloomberg NEF Tier 1 manufacturer, which facilitates bankability and project financing for commercial and utility-scale developments. ### Does the black frame of the DHN-54R18/DG(BW) series affect the panel's electrical performance? The black anodized aluminum frame is primarily an aesthetic choice and has no adverse effect on the module's electrical parameters. Combined with the white backsheet (indicated by the BW designation), the module integrates well into modern architectural designs. It is worth noting that a non-anodized aluminum frame can absorb more heat in warmer climates; however, under typical Polish climatic conditions this has no practical impact on energy yield. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-54r18-dg-bw-450-465w-2a0493d68621.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +2.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +35 W, lighter, +2.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +45 W, cooler, +2.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +30 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +40 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +40 W, lighter, +2.0 pp | | [DAH Solar DAS-DH108ND-440W](https://comparepv.com/panel/dah-solar-das-dh108nd-440w) | 440 W | -20 W, lighter, -0.9 pp | | [DAH Solar DAS-DH108ND-445W](https://comparepv.com/panel/dah-solar-das-dh108nd-445w) | 445 W | -15 W, lighter, -0.7 pp | | [DAH Solar DHN-54R18/DG-450W](https://comparepv.com/panel/dah-dhn-54r18-dg-450w) | 450 W | -10 W, -0.5 pp | | [DAH Solar DHN-54R18/DG-455W](https://comparepv.com/panel/dah-dhn-54r18-dg-455w) | 455 W | -0.2 pp | --- Source: https://comparepv.com/panel/dah-dhn-54r18-dg-bw-460w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.