--- title: "DAH Solar DHN-54R18/DG-465W 465W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-54R18/DG-465W 465W solar panel. Specs: 22.78% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-54r18-dg-465w" updated: 2026-09-11 --- # DAH Solar DHN-54R18/DG-465W Solid all-round for its segment 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-54R18/DG-465W - **Series:** DHN-54R18/DG 450–465W - **Rated power:** 465 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) | 465 W | 465 W | Typical | | | Module efficiency | 22.78% | 22.52% | Typical | 3,058 | | Power density | 227.8 | 225.2 | Typical | 2,857 | | 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 | 22.78% | 22.52% | Typical | 3,058 | | Power density | 227.8 | 225.2 | Typical | 2,857 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.5 | 52.2 | Typical | 6,007 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 22.78 % - **Voltage at Pmax (Vmp):** 34.10 V - **Current at Pmax (Imp):** 13.64 A - **Open-circuit voltage (Voc):** 40.00 V - **Short-circuit current (Isc):** 14.60 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:** 30 mm - **Weight:** 24.4 kg - **Area:** 2.04 m2 - **Power density:** 227.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Output after 30 years:** 406 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3058 of 14005 | | Power density | 2857 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 6007 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Class-Leading Efficiency – Up to 22.78%** - The 465 W variant achieves an efficiency of 22.78%, which is 1.30 percentage points higher than comparable modules from Jinko Solar and JS Solar JS182MHC120 (21.48%), and as much as 1.87 percentage points higher than the Vikram Solar SOMERA (20.91%). This translates into greater energy yield per m² of roof area without the need to expand the installation. - **Low Temperature Coefficient of –0.29%/°C** - N-type TOPCon cells exhibit a Pmax temperature coefficient of –0.29%/°C, whereas typical PERC modules range from –0.34 to –0.37%/°C. Under Polish summer conditions — with cell temperatures of 60–75°C — this difference results in meaningfully higher seasonal energy yield of several percentage points. - **30-Year Power Warranty (87.4% After 30 Years)** - The manufacturer guarantees ≥89.4% of rated power after 25 years and ≥87.4% after 30 years. Competing series in this segment (Jinko, JS Solar) typically cap their power warranty at 25 years. The extended warranty reduces financial risk over the full lifecycle of the installation. - **Robust Glass-Glass Construction (5,400 / 2,400 Pa)** - The dual-glass design provides resistance to snow loads of up to 5,400 Pa and wind loads of up to 2,400 Pa. In Poland's climate — characterized by harsh winters and variable snow accumulation — these ratings represent a significant advantage over glass-backsheet modules, which typically carry limits of 2,400–4,000 Pa. - **BNEF Tier 1 – Q1, Q3, and Q4 2025** - DAH Solar has maintained BNEF Tier 1 status for several consecutive quarters (confirmed for Q1, Q3, and Q4 2025), establishing its bankability — meaning leading financial institutions are prepared to finance projects using these modules without requiring additional collateral or credit enhancements. ## Cons - **Higher Module Weight – 24.4 kg** - The glass-glass construction results in a module weight of 24.4 kg, compared to 21–22 kg typical of equivalent glass-backsheet modules in this class. For larger installations on older rooftops, an additional structural engineering assessment or substructure reinforcement may be required. ## About this series The DAH DHN-54R18/DG 450-465W series is designed to maximize energy yield in situations where every square meter of roof space matters. The use of **N-type TOPCon solar cells** helps maintain high efficiency even under real-world operating conditions, rather than just in a laboratory setting, which translates into more stable annual energy production. The module has a **double-glass (glass-glass) construction**, making it better able to withstand mechanical loads and long-term exposure to moisture and varying temperatures - a practical advantage in the Polish climate. An additional advantage is **bifaciality**, which allows you to utilize reflected light from the ground or a light-colored roof surface, boosting yield without expanding the installation. Furthermore, **lower temperature sensitivity** promotes better performance in the summer, when traditional modules lose the most energy. This is a good choice for single-family homes, commercial rooftops, and carports, where durability, aesthetic appearance, and predictable energy production over the years are important. ## Notable figures - At 22.8% efficiency, this panel is on par with typical \*\*TOPCon 450-500W\*\* modules - At 227.8 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 - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface - Ranked #3058 out of 14005 panels for efficiency in the database ## Questions ### What is the warranty on the DAH Solar DHN-54R18/DG 450–465W panels? The DHN-54R18/DG series is covered by a 25-year product warranty against material and workmanship defects. The linear power output warranty extends to 30 years, by which point the module is guaranteed to retain at least 87.4% of its original nominal power. This is one of the longest power warranty terms available in this class of prosumer modules. ### What is TOPCon technology and why is it worth choosing in the DHN-54R18/DG series? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that delivers module efficiency of up to 22.78% — significantly higher than conventional PERC cells. Thanks to superior surface passivation, the cells degrade more slowly and perform better under diffuse light conditions, which are typical of the Polish climate. In practice, this translates to greater energy yield from the same roof area throughout the year. ### Does the bifacial design of the DAH DHN-54R18/DG panels actually increase energy production? Yes, bifacial cells allow the module to absorb light reflected from the ground surface or a light-colored roofing material. In typical rooftop installations, the additional energy yield ranges from 2% to 8%, and can be even higher in ground-mounted systems with a high-albedo surface. The effect is measurable even with standard clay roof tiles and delivers real value with no additional balance-of-system (BoS) costs. ### How do the DHN-54R18/DG panels perform in high temperatures during summer? The temperature coefficient of Pmax for this series is -0.29%/°C, which is a better result than typical PERC modules, which achieve approximately -0.35%/°C. This means that on hot summer days, when cell temperature reaches 60–70°C, power losses are noticeably lower. For installations in Poland, this represents a measurable benefit at the peak of the season when irradiance is at its highest. ### Is the DAH DHN-54R18/DG panel suitable for a typical pitched roof on a Polish single-family home? Yes, the module — measuring 1800×1134×30 mm and weighing 24.4 kg — is compatible with standard racking systems for pitched roofs. The glass-glass dual-glass construction increases rigidity and resistance to snow loads, which is an important consideration in Poland. Prior to installation, it is advisable to confirm that the selected mounting structure is certified for this specific model and that the roof structure can support the corresponding load. ### Is DAH Solar a reliable manufacturer — can they be trusted when investing in a photovoltaic installation? DAH Solar appears on the Bloomberg NEF Tier 1 list, which designates manufacturers with verified financial and technical credibility. The company supplies modules to installations worldwide, holds IEC and CE certifications, and its products are available through Polish distributors with local support. The long product warranty (25 years) and power output warranty (30 years) represent a genuine financial commitment, not merely a marketing claim. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/en-dhn-54r18-dg-450-465w-d2c8369f70f1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +45 W, cooler, +2.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +30 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +40 W, cooler, +1.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +35 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +35 W, lighter, +1.7 pp | | [DAH Solar DAS-DH108ND-440W](https://comparepv.com/panel/dah-solar-das-dh108nd-440w) | 440 W | -25 W, lighter, -1.2 pp | | [DAH Solar DAS-DH108ND-445W](https://comparepv.com/panel/dah-solar-das-dh108nd-445w) | 445 W | -20 W, lighter, -1.0 pp | | [DAH Solar DHN-54R18/DG-450W](https://comparepv.com/panel/dah-dhn-54r18-dg-450w) | 450 W | -15 W, -0.7 pp | | [DAH Solar DHN-54R18/DG-455W](https://comparepv.com/panel/dah-dhn-54r18-dg-455w) | 455 W | -10 W, -0.5 pp | --- Source: https://comparepv.com/panel/dah-dhn-54r18-dg-465w 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.