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VSUN Brand review

VSUN550-144MH

550 Wp PERC
ComparePV verdict

Strong in heat, short guarantee

Rank 5,197 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)
25
Weak · bottom 24%

The VSUN 144MH series consists of modules based on 144 Half-Cut cells, which were designed to maximize yields in demanding environmental conditions. By splitting the cells in half, these panels handle partial shading significantly better, which directly translates into the stability of energy production in installations with limited mounting space. The use of PERC technology and multi-busbar connections allows for a significant reduction in resistive losses and an improvement in current flow, making these units exceptionally efficient even under very high solar radiation. This series is an ideal solution for commercial investments and large photovoltaic farms, where the key factor is BOS cost optimization and a fast return on capital. A standout feature of VSUN 144MH is its high resistance to potential-induced degradation, meaning guaranteed protection against the PID effect, which, combined with a favorable temperature coefficient, ensures the longevity of the entire system. These modules effectively solve the problem of performance drops on hot days, offering stable operation on heating roofs. By choosing this series, investors gain high energy conversion efficiency while maintaining an excellent quality-to-price ratio, placing VSUN at the forefront of solutions for the industrial sector.

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 25 yrs 27 yrs Weak · bottom 24% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Commercial, utility-scale, shaded-installations and hot-climate.

Not ideal for

Owners who want a long output guarantee.

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.

Watch-outs
25 year performance warranty

Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs.

Notes from the database
  • Efficiency of 21.3% matches the PERC 550-600W median
  • Power density of 212.9 W/m² matches the PERC 550-600W median
  • Temperature coefficient of -0.32%/°C vs median -0.35%/°C means ~1% less power loss at 65°C
  • At 28.8 kg, this panel is 2.0 kg lighter than PERC 550-600W median (30.8 kg) - easier handling during installation
  • Ranked #8708 out of 14005 panels for efficiency in the database

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
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 25 years Weak bottom 24% · median 27 yrs
End-of-warranty output 87.2 % 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
-

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
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VSUN VSUN550-144MH 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, +3.5 pp, +5 yr warranty
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, +3.3 pp, +5 yr warranty
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
VSUN540-144MH 540 W 20.90% -0.320 28.8 kg -10 W, -0.4 pp
VSUN545-144MH 545 W 21.10% -0.320 28.8 kg Very close match
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
Are VSUN 144MH panels suitable for a solar farm or large commercial installation?
Yes, the VSUN 144MH series is designed for commercial and utility-scale applications. Power output up to 550 Wp combined with PERC cell technology and multi-busbar connections helps reduce BoS costs and shorten payback time. This makes the panels a popular choice for investors building solar farms and large industrial installations, where the levelized cost of energy is a key decision factor.
What warranty comes with VSUN 144MH panels?
The manufacturer provides a 25-year product warranty and a 25-year power performance warranty. This means the module is expected to maintain high efficiency for a quarter of a century, with material or manufacturing defects covered during that period. This is in line with current market standards for modern monocrystalline half-cut solar panels.
What is Half-Cut technology in VSUN 144MH panels and what are its benefits?
Half-cut technology splits standard cells in half, so the VSUN 144MH series uses 144 smaller cells instead of the traditional 72. This reduces resistive losses and improves performance under partial shading, such as from a chimney or nearby tree. In practice, this results in more stable energy production, especially in installations with limited or irregular mounting space.
Is the VSUN 144MH a bifacial panel?
No, the VSUN 144MH series is a mono-facial panel and does not capture reflected light from the rear side. If you need extra energy yield from the back of the module, consider a bifacial model from the same manufacturer instead. The 144MH series still performs very well in standard rooftop and ground-mounted installations where the albedo effect can't be utilized anyway.
Are VSUN 144MH panels resistant to PID effect and high summer temperatures?
Yes, this series includes guaranteed protection against potential-induced degradation (PID effect), preventing gradual power loss over time. Combined with a favorable temperature coefficient, the panels maintain stable output even on heavily heated rooftops during summer, where conventional modules typically see larger performance drops at high ambient temperatures.
Who manufactures VSUN panels, and is it a tier 1 supplier?
VSUN is headquartered in Germany, though the 144MH series itself is not classified as tier 1 under the BloombergNEF ranking. This doesn't indicate lower technical quality, only a smaller volume of bank-financed projects compared to the largest global players. For residential and smaller commercial installations, this classification typically has little practical impact.
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