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VSUN Brand review

VSUN550-144BMH

550 Wp PERC Bifacial 70%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 4,208 of 14,005
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.29
Typical · median 21.29%
Density (Wp/m²)
212.9
Typical · median 212.9
Temp (%/°C)
-0.320
Strong · top 3%
Weight (kg)
28.8
Typical · median 30.8 kg
Warranty (yrs)
30
Strong · top 25%

VSUN 144BMH panels are advanced modules based on half-cut cell technology, which significantly reduces energy losses resulting from internal resistance and improves efficiency during partial shading. Thanks to the use of a multi-busbar design, this series guarantees better current flow and higher resistance to micro-cracks, which directly translates into the longevity of the entire installation. The use of PERC technology allows for more efficient operation in low-light conditions, effectively solving the problem of low performance on cloudy days, so characteristic of the Polish climate. These solutions make VSUN 144BMH an ideal choice for large-scale solar farms and large commercial installations, where a quick return on investment and maximizing yields from every square meter of area are key. Importantly, this series stands out for its increased resistance to potential-induced degradation (PID), which ensures the stability of power parameters over many years of operation. Compared to standard modules, VSUN offers a more favorable temperature coefficient, allowing high efficiency to be maintained even during summer heat. It is a solid foundation for projects requiring uncompromising reliability and the highest mechanical resistance to harsh weather conditions.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.29% 21.29% Typical 8,708
Power density 212.9 212.9 Typical 8,497
Temperature coefficient -0.320 -0.350 Strong · top 3% 8,312
Weight per kWp 52.4 52.7 Typical 5,851
Performance warranty 30 yrs 27 yrs Strong · top 25% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Commercial, utility-scale and shaded-installations.

Strengths
-0.320 %/°C temperature coefficient

Top 3% of the PERC 550-600 W segment, against a median of -0.350. Ranked 8,312th in the whole database.

30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Notes from the database
  • At 21.3% efficiency, this panel is on par with typical PERC 550-600W modules
  • Power density of 212.9 W/m² matches the PERC 550-600W median
  • At -0.32%/°C (vs median -0.35%/°C), loses ~1% less power in hot conditions
  • Weight of 28.8 kg (2.0 kg below PERC 550-600W median of 30.8 kg) allows easier transport and roof mounting
  • 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.29 % Typical Segment median 21.29%
Vmpp · Impp 42.00 V · 13.10 A Operating point at max power
Voc · Isc 49.92 V · 13.99 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×35 mm · 2.58 m² of roof
Weight 28.8 kg Typical Typical · median 30.8 kg
Cells 144 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.320 %/°C Strong top 3% of its segment
Coefficient Voc · Isc -0.270 · 0.048 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 85.0 % Equals 467 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

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
-
With bifacial gain
-

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

Heat losses
-0.320 %/°C against a segment median of -0.350
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
VSUN VSUN550-144BMH 550 W 21.29% -0.320 28.8 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.4 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.3 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.2 pp
VSUN535-144MH 535 W 20.71% -0.320 28.8 kg -15 W, -0.6 pp, -5 yr warranty
VSUN540-144MH 540 W 20.90% -0.320 28.8 kg -10 W, -0.4 pp, -5 yr warranty
VSUN545-144MH 545 W 21.10% -0.320 28.8 kg -5 yr warranty
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +95 W, cooler, +3.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +90 W, cooler, +3.5 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +85 W, cooler, +3.3 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +80 W, cooler, +3.1 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is half-cut cell technology used in the VSUN 144BMH panels?
Half-cut technology splits standard cells in half, so the current flowing through each half is lower, reducing resistive losses and heat buildup within the module. In the VSUN 144BMH series this is combined with a multi-busbar design that improves current flow and increases resistance to microcracks. The result is higher efficiency, better performance under partial shading, and longer panel lifespan in demanding operating conditions.
Are VSUN 144BMH panels bifacial, and how much extra energy can they generate?
Yes, the 144BMH series uses bifacial PERC cells with a bifaciality factor of around 70%, allowing the rear side to capture light reflected off the ground. Depending on the surrounding surface — white roofing membrane, gravel, snow, or light-colored ground — the extra yield from the back side can reach 4 to 10% of nominal power, making these panels an attractive choice for ground-mount installations and utility-scale farms.
What warranty does VSUN offer on the 144BMH series panels?
VSUN 144BMH panels come with a 25-year product warranty covering materials and workmanship, plus a 30-year linear power warranty guaranteeing that a high percentage of the initial output is maintained throughout the panel's lifetime. This is a long coverage period compared to many competing modules, translating into greater investment security and a more stable return from the PV installation.
What type of installations are VSUN 144BMH panels best suited for — residential or commercial?
With power output up to 550 Wp, PERC technology, half-cut cells, and enhanced PID resistance, VSUN 144BMH panels are primarily designed for utility-scale solar farms and large commercial installations, where maximizing energy yield per square meter and achieving a fast return on investment are key priorities. They can also work in larger residential systems, though their size and power output make them best suited for professional-scale projects.
How do VSUN 144BMH panels perform in high summer temperatures?
VSUN 144BMH panels have a favorable power temperature coefficient of around -0.32%/°C, meaning less output loss as temperatures rise compared to standard modules. PERC technology further supports stable cell performance at higher temperatures, so the panel maintains high efficiency even on hot summer days when module temperature on a roof can exceed 60°C (140°F).
Is VSUN a Tier 1 manufacturer, and are its panels a reliable choice despite not having that status?
VSUN does not currently hold Tier 1 status under the BNEF ranking, which mainly reflects a manufacturer's financial stability relevant to banks funding large projects rather than technical quality. The company is headquartered in Germany and backs its panels with a 25-year product warranty and a 30-year power warranty, which in practice signals confidence in the durability of its modules despite lacking formal Tier 1 classification.
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