--- title: "DAH Solar DHN-72R20/DG 625W 625W Solar Panel - Specs & Review | ComparePV" description: "DAH Solar DHN-72R20/DG 625W 625W solar panel. Specs: 23.14% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dah-dhn-72r20-dg-625w" updated: 2026-09-11 --- # DAH Solar DHN-72R20/DG 625W Solid all-round for its segment 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** DAH Solar - **Model:** DHN-72R20/DG 625W - **Series:** DHN-72R20/DG - **Rated power:** 625 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 625 W | 620 W | Typical | | | Module efficiency | 23.14% | 22.80% | Typical | 1,509 | | Power density | 231.4 | 227.7 | Typical | 1,513 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 32.6 kg | 32.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.14% | 22.80% | Typical | 1,509 | | Power density | 231.4 | 227.7 | Typical | 1,513 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.2 | 53.1 | Typical | 5,626 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 625 W - **Efficiency:** 23.14 % - **Voltage at Pmax (Vmp):** 45.20 V - **Current at Pmax (Imp):** 13.83 A - **Open-circuit voltage (Voc):** 53.00 V - **Short-circuit current (Isc):** 14.90 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:** 144 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 32.6 kg - **Area:** 2.70 m2 - **Power density:** 231.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Output after 30 years:** 546 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1509 of 14005 | | Power density | 1513 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 5626 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Up to 23.14% efficiency – top of peer comparables** - 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. - **Favorable temperature coefficient of -0.29%/°C** - 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. - **Two-tier power warranty: 25 and 30 years** - 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. - **Dual-glass + bifacial: durability and additional energy yield** - 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. - **Confirmed BNEF Tier 1 throughout 2025** - 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. ## Cons - **Higher module weight (~32.6 kg)** - 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. ## About this series 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. ## Notable figures - Efficiency of 23.1% matches the \*\*TOPCon 600-650W\*\* median - Power density of 231.4 W/m² packs 3.7 W/m² more into the same footprint vs \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - #1509 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What warranty does the DAH Solar DHN-72R20/DG series carry? The DHN-72R20/DG series is covered by a 15-year product warranty (covering physical defects and workmanship) and a 30-year power output warranty. The manufacturer guarantees that after 30 years of operation the module will retain at least 87.4% of its original nominal power. This is one of the longest power warranties available on the market, which significantly reduces investment risk in both residential prosumer and commercial installations. ### What advantages does n-type TOPCon technology offer in the DAH DHN-72R20/DG panels compared to older PERC modules? N-type TOPCon cells feature a lower temperature coefficient (approximately -0.29%/°C), meaning smaller power losses on hot days than is typical for PERC modules. They also exhibit lower annual degradation rates and better low-light response — a critical advantage in the Polish climate, which sees a high proportion of overcast days. As a result, the annual energy yield from the same roof area is measurably higher than with older-generation technology. ### Does the bifacial design of the DAH DHN-72R20/DG panels make sense for a typical rooftop installation in Poland? The bifacial cells in this series deliver a tangible gain primarily in ground-mounted systems, carports, and light-colored flat roofs, where the rear side of the panel can capture diffuse or ground-reflected irradiance. On dark pitched roofs the benefit is limited. The manufacturer specifies a bifaciality factor of up to 85%, which under favorable conditions translates into 5–25% higher energy production compared to a monofacial module. ### How much does the DAH Solar DHN-72R20/DG panel weigh, and is it suitable for a standard pitched roof? The DHN-72R20/DG in the dual-glass configuration weighs approximately 32.6 kg with dimensions of 2382×1134×30 mm. This is heavier than a typical aluminum-framed panel — before installation it is advisable to verify the load-bearing capacity of the roof structure, especially in older buildings. The dual-glass construction improves mechanical strength and resistance to environmental stressors, but requires more robust mounting hardware and an experienced installation crew. ### What type of installation is the DAH DHN-72R20/DG series best suited for? With power output up to 625 Wp and a dual-glass construction, the DHN-72R20/DG series is primarily targeted at commercial and industrial (C&I) installations and utility-scale PV farms, where durability, predictable production, and long service life without module replacement are paramount. It also performs well in carports and large ground-mounted systems where bifaciality delivers real yield gains. For small residential rooftop installations, smaller modules are typically preferred due to the weight and physical size of this series. ### Is DAH Solar a reliable manufacturer, and are the DHN-72R20/DG panels certified for sale in Europe? DAH Solar is recognized as a Tier 1 manufacturer by independent PV industry rating agencies, confirming its financial stability and production capacity. The company has been operating since 2009 and exports panels to more than 100 countries. The DHN-72R20/DG series modules hold the required certifications (IEC 61215, IEC 61730) authorizing their sale and installation on the European market, including Poland. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/dhn-72r20-dg-610-625w-2cf51158c4ff.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.1 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +50 W, lighter, +1.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +45 W, lighter, +1.7 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +45 W, lighter, +1.7 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +1.7 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +45 W, cooler, +1.7 pp | | [DAH Solar DHN-66Z20/DG(BW)-585W](https://comparepv.com/panel/dah-dhn-66z20-dg-bw-585w) | 585 W | -40 W, -1.5 pp | | [DAH Solar DHN-590Z16/DG(BW)](https://comparepv.com/panel/dah-dhn-590z16-dg-bw) | 590 W | -35 W, -1.3 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +55 W, lighter, +2.1 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +75 W, cooler, +1.9 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +70 W, cooler, +1.8 pp | --- Source: https://comparepv.com/panel/dah-dhn-72r20-dg-625w 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.