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VDS Renewable Brand review

VDS-S144/FNH-400

400 Wp PERC
ComparePV verdict

Strong in heat, needs the roof space

Rank 12,365 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 9%
Efficiency (%)
19.90
Weak · bottom 10%
Density (Wp/m²)
198.8
Weak · bottom 10%
Temp (%/°C)
-0.340
Strong · top 24%
Weight (kg)
23.0
Weak · 1.0 kg above median
Warranty (yrs)
25
Typical · median 25 yrs

The VDS Renewable VDS-S144/FNH series is designed for stable energy production in typical rooftop conditions - both in single-family homes and smaller commercial installations. The use of PERC technology helps to better utilize solar radiation, which translates into more reliable performance even when solar conditions are not ideal. A key advantage is the design based on 144 cells, which promotes even distribution of loads and makes it easier to design chains in popular inverters. The module has a positive power tolerance, meaning that its actual performance is often closer to the declared specifications than to reducing them. In practice, this means fewer disappointments after installing the system and better predictability of energy yields. The robust construction with tempered glass with an anti-reflective coating and a sealed junction box also adds to its appeal, reducing the risk of problems in rain, snow, and with large temperature fluctuations. This is a sensible choice for investors who want a proven series without paying extra for features that don't always provide real value.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.90% 20.60% Weak · bottom 10% 12,331
Power density 198.8 206.2 Weak · bottom 10% 12,348
Temperature coefficient -0.340 -0.350 Strong · top 24% 8,778
Weight per kWp 57.5 53.0 Weak · bottom 22% 11,247
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

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

Strengths
-0.340 %/°C temperature coefficient

Top 24% of the PERC 400-450 W segment, against a median of -0.350.

Watch-outs
198.8 watts per square metre

Bottom 10% of the PERC 400-450 W segment, against a median of 206.2.

19.90% module efficiency

Bottom 10% of the PERC 400-450 W segment, against a median of 20.60%.

57.5 kg per kWp

Bottom 22% of the PERC 400-450 W segment, against a median of 53.0.

Notes from the database
  • Efficiency of 19.9% is 0.7pp below the PERC 400-450W median (20.6%)
  • Power density of 198.8 W/m² is 7.4 W/m² below PERC 400-450W median (206.2 W/m²) - needs more roof space
  • At -0.34%/°C, hot weather performance is typical for PERC 400-450W panels
  • At 23.0 kg, weight matches the PERC 400-450W median
  • Ranked #12331 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.90 % Weak Segment median 20.60%
Vmpp · Impp 41.80 V · 9.57 A Operating point at max power
Voc · Isc 49.00 V · 10.17 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2008×1002×40 mm · 2.01 m² of roof
Weight 23.0 kg Weak Weak · 1.0 kg above median
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Strong top 24% of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.3 % Equals 326 W guaranteed
Degradation 2.50 → 0.55 % 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
-0.340 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VDS Renewable VDS-S144/FNH-400 400 W 19.90% -0.340 23.0 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +3.2 pp, +5 yr warranty
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, +3.2 pp, +5 yr warranty
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +3.1 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, +3.1 pp, +5 yr warranty
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, +3.1 pp, +5 yr warranty
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +3.1 pp
VDS-S144/FNH-390W 390 W 19.40% -0.340 23.0 kg -10 W, -0.5 pp
VDS-S144/FNH-395W 395 W 19.60% -0.340 23.0 kg -0.3 pp
VDS-S144/FNH-405W 405 W 20.10% -0.340 23.0 kg +0.2 pp
VDS-S144/FNH-410W 410 W 20.40% -0.340 23.0 kg +10 W, +0.5 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +75 W, +4.1 pp, +15 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg Cooler, +3.8 pp, +15 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg Cooler, +3.6 pp, +15 yr warranty
MS480NC-HJTPBFT 480 W 22.10% -0.260 23.0 kg +80 W, cooler, +2.2 pp
LG440QAC-A6 440 W 22.10% -0.290 20.5 kg +40 W, cooler, +2.2 pp
MS475NC-HJTPBFT 475 W 21.90% -0.260 23.0 kg +75 W, cooler, +2.0 pp

Found 135 panels of the same or similar size to this one, within ±10 mm. See them here Found 206 panels of the same or similar size to this one, within ±25 mm. See them here Found 318 panels of the same or similar size to this one, within ±50 mm. See them here Found 791 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the VDS Renewable VDS-S144/FNH series still available for purchase?
The VDS-S144/FNH series has been discontinued and is no longer part of the manufacturer's current production lineup. Availability is now limited to remaining distributor stock. Anyone planning an installation should confirm current stock with their supplier, and if unavailable, consider a newer model with comparable specifications from the manufacturer's current catalog.
What warranty comes with the VDS-S144/FNH panels?
The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year power performance warranty guaranteeing limited cell degradation over time. These are standard terms for monocrystalline PERC panels in this class, though since production has ended, warranty support depends on the manufacturer's service availability in a given country.
How does the PERC technology used in the VDS-S144/FNH differ from standard monocrystalline panels?
PERC technology adds a passivation layer to the back of the cell that reflects unused light back into the silicon structure. This lets the cell capture more of the available light, especially in low-light conditions such as early morning, evening, or overcast weather. In practice, this results in higher efficiency and more stable energy output compared to older panels without this layer.
What is the maximum power output of the VDS-S144/FNH, and what installations is it suited for?
The panel reaches a maximum power output of 410 Wp, making it a solid choice for both single-family homes and smaller commercial installations on flat or pitched roofs. Its 144-cell layout helps distribute string voltage evenly, so it pairs well with popular inverter models commonly used on the market.
Are the VDS-S144/FNH panels bifacial?
No, the VDS-S144/FNH series is a monofacial panel, not bifacial. It generates power only from the front surface. For rooftop installations where the rear side has no access to reflected light anyway, this design is fully sufficient and typically more cost-effective than a bifacial equivalent.
Do the VDS-S144/FNH panels hold up well in harsh weather, such as heavy snow loads or strong wind?
Yes, the modules use tempered glass with an anti-reflective coating and a sealed junction box, improving resistance to moisture, rain, and temperature fluctuations. This construction reduces the risk of microcracks and internal connection corrosion, though for regions with heavy snow loads it's worth double-checking the maximum mechanical load rating in the datasheet.
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