--- title: "VSUN VSUN515N-132MH-BB 515W Solar Panel - Specs & Review | ComparePV" description: "VSUN VSUN515N-132MH-BB 515W solar panel. Specs: 21.69% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vsun-vsun515n-132mh-bb" updated: 2026-09-11 --- # VSUN VSUN515N-132MH-BB Middle of its segment, modest efficiency 432 panels in the segment TOPCon 500-550 W ## Identity - **Manufacturer:** VSUN - **Model:** VSUN515N-132MH-BB - **Series:** VSUN N-132MH-BB (TOPCon) - **Rated power:** 515 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 500-550 W (432 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 515 W | 510 W | Typical | | | Module efficiency | 21.69% | 22.73% | Weak - bottom 10% | 7,530 | | Power density | 216.9 | 227.4 | Weak - bottom 11% | 7,435 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight (kg) | 26.2 kg | 27.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.69% | 22.73% | Weak - bottom 10% | 7,530 | | Power density | 216.9 | 227.4 | Weak - bottom 11% | 7,435 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight per kWp | 50.9 | 52.4 | Typical | 4,256 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **21.69% module efficiency** - Bottom 10% of the TOPCon 500-550 W segment, against a median of 22.73%. - **216.9 watts per square metre** - Bottom 11% of the TOPCon 500-550 W segment, against a median of 227.4. - **-0.300 %/°C temperature coefficient** - Bottom 20% of the TOPCon 500-550 W segment, against a median of -0.290. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 515 W - **Efficiency:** 21.69 % - **Voltage at Pmax (Vmp):** 38.62 V - **Current at Pmax (Imp):** 13.34 A - **Open-circuit voltage (Voc):** 46.63 V - **Short-circuit current (Isc):** 14.08 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:** 132 ### Physical - **Length:** 2094 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.2 kg - **Area:** 2.37 m2 - **Power density:** 216.9 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 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 450 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7530 of 14005 | | Power density | 7435 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 4256 of 14005 | | Warranty | 21 of 14005 | ## About this series The VSUN N-132MH-BB (TOPCon) series is designed to maximize energy yield in situations where every square meter of roof or ground space matters. The use of **N-type TOPCon solar cells** results in more stable performance under varying conditions and improved resistance to typical power losses over time. The modules utilize a **bifacial design**, allowing them to effectively utilize reflected light from bright surfaces - which effectively supports energy production in flat-roof, ground-mounted, and snowy environments. Furthermore, connection architectures such as **multi-busbar and half-cut** help to minimize resistive losses and improve tolerance to partial shading. In practice, this means higher and more predictable energy yields throughout the day and season. The series is also characterized by its **all-black aesthetic**, which is important for homeowners and premium projects where the appearance of the installation is a key factor. It is a good choice for prosumers, companies, and installers who are looking for modern technology without compromising on durability. ## Notable figures - Efficiency of 21.7% is 1.0pp below the \*\*TOPCon 500-550W\*\* median (22.7%) - At 216.9 W/m², this panel generates 10.5 W/m² less per unit area than \*\*TOPCon 500-550W\*\* median (227.4 W/m²) - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 500-550W\*\* median - In the top 54% for efficiency among all TOPCon panels ## Questions ### What warranty comes with VSUN N-132MH-BB (TOPCon) panels? The VSUN N-132MH-BB (TOPCon) series comes with a 25-year product warranty and a 30-year linear power output warranty. This means the module should retain its guaranteed percentage of rated power over three decades, while manufacturing or material defects are covered for the first 25 years. This warranty level is on par with leading TOPCon series currently available on the market. ### What is TOPCon cell technology used in the VSUN N-132MH-BB panels, and is it worth choosing? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology where an additional passivation layer reduces electron recombination on the cell's rear side. In practice, this results in higher efficiency and less power degradation over time compared to conventional P-type PERC cells. For investors, this means more stable energy yield throughout the system's lifetime, especially noticeable after a decade or more of operation. ### Are the VSUN N-132MH-BB panels bifacial? No, this specific VSUN N-132MH-BB model uses a monofacial TOPCon cell design, generating energy only from the front side of the module. The manufacturer offers a separate bifacial variant (BMHR-DG) within the same product family, but this particular series does not capture reflected light from the ground. It's worth confirming this in the specific datasheet before purchase if rear-side gain is a priority. ### What is the maximum power output of the VSUN N-132MH-BB panel? The maximum power output in the VSUN N-132MH-BB (TOPCon) series is 525 Wp. This is a high value for a single module, allowing fewer panels to reach the target system capacity, which reduces mounting structure costs and shortens installation time on both roof and ground-mount systems. ### Is VSUN a Tier 1 manufacturer, and where is it headquartered? VSUN is not listed as a Tier 1 manufacturer under the BloombergNEF classification, which doesn't necessarily indicate lower quality but rather a shorter financial track record or smaller production scale by that methodology's criteria. The company reports a European headquarters in Germany, which simplifies service contact and warranty claims within the EU compared to manufacturers operating solely out of Asia. ### Are VSUN N-132MH-BB panels suitable for a residential pitched roof? Yes, this series works well for residential installations thanks to its all-black aesthetic, which blends smoothly with roof tiles and facades, and its half-cut, multi-busbar architecture that improves shading tolerance from chimneys or antennas. The high per-module power output (525 Wp) also allows more system capacity to fit on a limited pitched roof area. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/661e0f0d7432f-15120d1bcf6c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.1 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +45 W, cooler, +3.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +40 W, cooler, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.8 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.8 pp | | [VSUN VSUN510N-132BMH](https://comparepv.com/panel/vsun-vsun510n-132bmh) | 510 W | -0.2 pp | | [VSUN VSUN520N-132BMH](https://comparepv.com/panel/vsun-vsun520n-132bmh) | 520 W | +0.2 pp | | [VSUN VSUN525N-132BMH](https://comparepv.com/panel/vsun-vsun525n-132bmh) | 525 W | +10 W, +0.4 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +75 W, +2.1 pp | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +70 W, +1.9 pp | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +65 W, cooler, +1.8 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +65 W, +1.7 pp | --- Source: https://comparepv.com/panel/vsun-vsun515n-132mh-bb Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.