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VSUN Brand review

VSUN515N-132MH-BB

515 Wp TOPCon
ComparePV verdict

Middle of its segment, modest efficiency

Rank 4,872 of 14,005
Compare panels Datasheet PDF
Power (Wp)
515
Typical for its class
Efficiency (%)
21.69
Weak · bottom 10%
Density (Wp/m²)
216.9
Weak · bottom 11%
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
26.2
Typical · median 27.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

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.

Ranking

432 panels in the segment TOPCon 500-550 W
Metric This panel Median Position in segment Overall 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
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Tight roof space, roofs where every square metre has to count and hot climates.

Watch-outs
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.

Notes from the database
  • 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

Specifications

Open datasheet PDF
Nominal power (Pmax) 515 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.69 % Weak Segment median 22.73%
Vmpp · Impp 38.62 V · 13.34 A Operating point at max power
Voc · Isc 46.63 V · 14.08 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2094×1134×30 mm · 2.37 m² of roof
Weight 26.2 kg Typical Typical · median 27.0 kg
Cells 132 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 20% of its segment
Coefficient Voc · Isc -0.260 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 450 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by VSUN in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 515 Wp appear here. The rest cover the whole series.

I-V curves at different temperatures (AM1.5, 1000 W/m²) I-V curves at different temperatures (AM1.5, 1000 W/m²) Whole series I-V and P-V curves at different irradiance levels (25°C) I-V and P-V curves at different irradiance levels (25°C) Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VSUN VSUN515N-132MH-BB 515 W 21.69% -0.300 26.2 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +3.1 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +45 W, cooler, +3.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +40 W, cooler, +2.9 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.8 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +2.8 pp
VSUN510N-132BMH 510 W 21.48% -0.300 26.2 kg -0.2 pp
VSUN520N-132BMH 520 W 21.90% -0.300 26.2 kg +0.2 pp
VSUN525N-132BMH 525 W 22.11% -0.300 26.2 kg +10 W, +0.4 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +75 W, +2.1 pp
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +70 W, +1.9 pp
BGO 580 580 W 23.50% -0.290 26.0 kg +65 W, cooler, +1.8 pp
GKA120N-PRO-580W 580 W 23.42% -0.300 26.7 kg +65 W, +1.7 pp

Found 397 panels of the same or similar size to this one, within ±10 mm. See them here Found 408 panels of the same or similar size to this one, within ±25 mm. See them here Found 425 panels of the same or similar size to this one, within ±50 mm. See them here Found 953 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
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.
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