--- title: "VSUN VSUN580N-144BMH-DG 580W Solar Panel - Specs & Review | ComparePV" description: "VSUN VSUN580N-144BMH-DG 580W solar panel. Specs: 22.45% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vsun-vsun580n-144bmh-dg" updated: 2026-09-11 --- # VSUN VSUN580N-144BMH-DG Middle of its segment, heavy for its output 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** VSUN - **Model:** VSUN580N-144BMH-DG - **Series:** VSUN N-144BMH-DG - **Rated power:** 580 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 550-600 W (1018 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 580 W | 580 W | Typical | | | Module efficiency | 22.45% | 22.44% | Typical | 4,620 | | Power density | 224.5 | 224.4 | Typical | 4,547 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 32.7 kg | 31.2 kg | Weak - bottom 16% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.45% | 22.44% | Typical | 4,620 | | Power density | 224.5 | 224.4 | Typical | 4,547 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 56.4 | 53.8 | Weak - bottom 16% | 10,617 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **56.4 kg per kWp** - Bottom 16% of the TOPCon 550-600 W segment, against a median of 53.8. - **Best for:** Utility-scale, commercial, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 580 W - **Efficiency:** 22.45 % - **Voltage at Pmax (Vmp):** 42.70 V - **Current at Pmax (Imp):** 13.60 A - **Open-circuit voltage (Voc):** 51.44 V - **Short-circuit current (Isc):** 14.37 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.260 %/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:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 32.7 kg - **Area:** 2.58 m2 - **Power density:** 224.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 507 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4620 of 14005 | | Power density | 4547 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 10617 of 14005 | | Warranty | 21 of 14005 | ## About this series VSUN N-144BMH-DG photovoltaic modules utilize advanced N-type cell technology, which forms the foundation of their exceptional efficiency in variable weather conditions. Thanks to the **bifacial double glass** design, these panels can absorb solar radiation from both sides, which drastically increases energy production on surfaces with high reflectivity. The innovative **half-cut and multi-busbar** architecture effectively eliminates resistive losses and increases the module's resistance to mechanical damage, ensuring trouble-free operation for many years. This series was designed for investors planning **utility-scale solar farms** and modern commercial installations, where the priority is the highest yield per square meter. It addresses key industry challenges, such as LID-type degradation, offering significantly more stable power parameters in the long term than standard modules. What sets this series apart from the competition is its **excellent temperature characteristics**, allowing it to maintain high efficiency even during summer heatwaves. By choosing VSUN N-144BMH-DG, you choose **technological reliability**, which realistically translates into higher investment profitability and a faster return on capital in the Polish climate. ## Notable figures - Efficiency of 22.4% matches the \*\*TOPCon 550-600W\*\* median - Power density of 224.5 W/m² matches the \*\*TOPCon 550-600W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 550-600W\*\* median - Weight of 32.7 kg is 1.5 kg above \*\*TOPCon 550-600W\*\* median (31.2 kg) - verify structural support - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof ## Questions ### How much extra energy does the bifacial design of the VSUN N-144BMH-DG generate? The bifacial double-glass design allows the module to capture reflected radiation on its rear side as well. With a high-albedo surface (white gravel, reflective sheeting, or snow) and proper mounting height, the additional annual energy yield can range from a few percent up to double digits compared to a standard monofacial module. The biggest gains occur on ground-mounted solar farms rather than typical sloped residential roofs where the rear side is blocked. ### How does the TOPCon technology in the VSUN N-144BMH-DG differ from standard PERC cells? N-type TOPCon cells have higher base efficiency and are significantly less prone to LID (Light Induced Degradation) than common P-type PERC cells. This means the module loses less power in its early years and maintains higher performance over the long term, translating into genuinely higher energy output throughout the 30-year linear power warranty period. ### What warranty comes with the VSUN N-144BMH-DG solar panels? The manufacturer provides a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This means that even after 30 years of operation, the module is guaranteed to retain a high percentage of its original power rating — an important factor when calculating long-term investment returns. ### What type of installations is the VSUN N-144BMH-DG, rated up to 590 Wp, best suited for? Given its high unit power output of up to 590 Wp and double-glass construction, this series is primarily designed for utility-scale solar farms and large commercial installations, where maximizing energy yield per square meter is the priority. The large dimensions and weight make it a less typical choice for small residential rooftop installations on sloped roofs. ### Does the VSUN N-144BMH-DG perform well in high summer temperatures? Yes, modules built on N-type TOPCon cells have a more favorable power temperature coefficient than standard PERC panels, resulting in a smaller performance drop during hot weather. This means the panel maintains more stable energy production on hot, sunny days, which is relevant for installations in Poland's increasingly warm summers. ### Does the half-cut and multi-busbar design of the VSUN N-144BMH-DG improve resistance to damage? Yes, splitting cells into halves (half-cut) combined with multi-busbar technology reduces resistive losses and distributes mechanical stress across more connection points. This makes the module less susceptible to micro-cracks and hot-spot effects — for example from partial shading, snow loads, or strong wind — resulting in longer, more reliable operation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/65f3e0e709d6e-6856191e69d0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +2.2 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +50 W, cooler, +1.9 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, 16 kg lighter, +1.9 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | -40 W, lighter, +1.9 pp | | [VSUN VSUN535-144MH](https://comparepv.com/panel/vsun-vsun535-144mh) | 535 W | -45 W, -1.7 pp, -5 yr warranty | | [VSUN VSUN540-144MH](https://comparepv.com/panel/vsun-vsun540-144mh) | 540 W | -40 W, -1.6 pp, -5 yr warranty | | [VSUN VSUN545-144MH](https://comparepv.com/panel/vsun-vsun545-144mh) | 545 W | Lighter, -1.3 pp, -5 yr warranty | | [VSUN VSUN550-144BMH](https://comparepv.com/panel/vsun-vsun550-144bmh) | 550 W | -30 W, lighter, -1.2 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +70 W, lighter, +2.8 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +65 W, lighter, +2.6 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +60 W, lighter, +2.4 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +55 W, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/vsun-vsun580n-144bmh-dg 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.