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VDS Renewable Brand review

VDS-S144/M6H-BG-440W

440 Wp Monocrystalline Bifacial 70%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 11,743 of 14,005
Compare panels Datasheet PDF
Power (Wp)
440
Typical for its class
Efficiency (%)
20.20
Weak · bottom 16%
Density (Wp/m²)
202.1
Weak · bottom 16%
Temp (%/°C)
-0.340
Typical · median -0.300
Weight (kg)
28.5
Weak · 5.0 kg above median
Warranty (yrs)
25
Weak · bottom 17%

The VDS Renewable VDS-S144/M6H-BG series are bifacial glass-glass modules designed for stable operation in demanding installations. Thanks to bidirectional energy conversion, they can better utilize reflected light from the ground, which helps to increase power generation where traditional "single-sided" panels leave potential untapped. The use of half-cut technology minimizes losses and improves performance under partial shading, while MBB technology supports higher efficiency and better resistance to microcracks in daily operation.

In practice, the VDS-S144/M6H-BG solves common problems for farms and roofs in challenging operating conditions - temperature fluctuations, stronger winds, higher loads, and the risk of accelerated laminate aging. The glass-glass design promotes long-term durability, and the high-sealing junction box helps maintain safety and reliability. It is a good choice for commercial, industrial, and ground-mounted installations where predictable performance and durability are more important than just paper specifications.

Ranking

7,136 panels in the 340-540 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.20% 21.50% Weak · bottom 16% 11,956
Power density 202.1 215.1 Weak · bottom 16% 11,967
Temperature coefficient -0.340 -0.300 Typical 8,778
Weight per kWp 64.8 52.7 Weak · bottom 6% 13,024
Performance warranty 25 yrs 30 yrs Weak · bottom 17% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Commercial and shaded-installations.

Not ideal for

Weight-limited structures, tight roof space and roofs where every square metre has to count.

Watch-outs
64.8 kg per kWp

Bottom 6% of the 340-540 W band, against a median of 52.7. Ranked 13,024th in the whole database.

20.20% module efficiency

Bottom 16% of the 340-540 W band, against a median of 21.50%.

202.1 watts per square metre

Bottom 16% of the 340-540 W band, against a median of 215.1.

Notes from the database
  • At 20.2% efficiency, this panel is 1.6pp below the database median of 21.8%
  • At 202.1 W/m², this panel generates 16.0 W/m² less per unit area than database median (218.1 W/m²)
  • At -0.34%/°C, loses 0.04pp more power per degree than database median (-0.30%/°C)
  • At 28.5 kg, this panel is 2.0 kg heavier than the database median (26.5 kg) - more demanding for installation crews
  • Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 440 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.20 % Weak Segment median 21.50%
Vmpp · Impp 41.10 V · 10.71 A Operating point at max power
Voc · Isc 49.10 V · 11.37 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2095×1039×30 mm · 2.18 m² of roof
Weight 28.5 kg Weak Weak · 5.0 kg above median
Cells 144 Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.340 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 41 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 17% · median 30 yrs
End-of-warranty output 85.0 % Equals 374 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
-0.340 %/°C against a segment median of -0.300
-
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
VDS Renewable VDS-S144/M6H-BG-440W 440 W 20.20% -0.340 28.5 kg You are here
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +4.3 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg Cooler, lighter, +4.3 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg Cooler, lighter, +4.1 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg Cooler, lighter, +4.1 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg Cooler, lighter, +4.1 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg Cooler, lighter, +4.1 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg Cooler, +4.1 pp, +5 yr warranty
VDS-S144/M6H-BG-430W 430 W 19.70% -0.340 28.5 kg -10 W, -0.5 pp
VDS-S144/M6H-BG-435W 435 W 20.00% -0.340 28.5 kg Very close match
VDS-S144/M6H-445 445 W 20.50% -0.340 23.8 kg Lighter, +0.3 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +150 W, +3.6 pp, +5 yr warranty
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +145 W, +3.4 pp, +5 yr warranty
BGO 580 580 W 23.50% -0.290 26.0 kg +140 W, cooler, +3.3 pp
GKA120N-PRO-580W 580 W 23.42% -0.300 26.7 kg +140 W, +3.2 pp, +5 yr warranty

Found 234 panels of the same or similar size to this one, within ±10 mm. See them here Found 325 panels of the same or similar size to this one, within ±25 mm. See them here Found 352 panels of the same or similar size to this one, within ±50 mm. See them here Found 1068 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Are VDS-S144/M6H-BG panels still available for purchase?
No, the VDS-S144/M6H-BG series has been discontinued. Modules may still be available from distributors as remaining stock, but the manufacturer no longer guarantees continuous supply for new, larger projects. When planning an installation, confirm the availability of a specific batch and consider current replacement models with similar specifications.
How do bifacial VDS-S144/M6H-BG panels differ from standard single-sided panels?
Bifacial panels capture not only direct sunlight but also light reflected from the ground and reaching the rear side of the module. Thanks to the glass-glass construction and transparent backsheet, the VDS-S144/M6H-BG can generate additional energy from reflections, especially over bright surfaces, gravel, or snow. In practice this results in higher annual yield than classic backsheet panels of similar surface area.
What warranty comes with VDS-S144/M6H-BG modules?
VDS Renewable provides a 12-year product warranty covering material and workmanship defects, plus a 30-year power output warranty guaranteeing a minimum generation level over that period. These are standard terms for modern bifacial modules, though since this series is discontinued, warranty service may involve longer lead times.
Does the 450 Wp VDS-S144/M6H-BG panel require a special mounting structure?
The glass-glass construction is heavier than backsheet panels, so it requires a sturdy mounting system rated for the higher load, particularly on flat roofs or ground-mount installations. For bifacial setups, east-west racking or elevated frames are recommended to allow light exposure to the rear side, maximizing the bifacial gain.
How do half-cut and MBB technology work in VDS-S144/M6H-BG panels, and is it worth it?
Half-cut means cells are split in half, reducing resistive losses and improving performance under partial shading, such as from a chimney or leaves. MBB (multi busbar) technology increases the number of current-carrying paths, boosting conversion efficiency and lowering the risk of microcracks. Together these technologies deliver higher and more stable energy yield throughout the system's operating life.
What types of installations are best suited for VDS-S144/M6H-BG panels?
This series was designed for commercial, industrial, and ground-mount installations where wind resistance, temperature fluctuations, and long-term laminate durability matter. The glass-glass construction and high-sealing junction box perform well under demanding conditions, such as large solar farms or industrial roofs exposed to greater mechanical loads.
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