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VDS Renewable Brand review

VDS-S144/FNH-390W

390 Wp Monocrystalline
ComparePV verdict

Middle of its segment, modest efficiency

Rank 12,606 of 14,005
Compare panels Datasheet PDF
Power (Wp)
390
Weak · bottom 20%
Efficiency (%)
19.40
Weak · bottom 13%
Density (Wp/m²)
193.8
Weak · bottom 13%
Temp (%/°C)
-0.340
Typical · median -0.300
Weight (kg)
23.0
Weak · bottom 18%
Warranty (yrs)
25
Weak · bottom 19%

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

6,208 panels in the 290-490 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 19.40% 21.26% Weak · bottom 13% 12,735
Power density 193.8 212.5 Weak · bottom 13% 12,738
Temperature coefficient -0.340 -0.300 Typical 8,778
Weight per kWp 59.0 53.3 Weak · bottom 18% 11,964
Performance warranty 25 yrs 30 yrs Weak · bottom 19% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

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

Watch-outs
19.40% module efficiency

Bottom 13% of the 290-490 W band, against a median of 21.26%.

193.8 watts per square metre

Bottom 13% of the 290-490 W band, against a median of 212.5.

59.0 kg per kWp

Bottom 18% of the 290-490 W band, against a median of 53.3.

Notes from the database
  • Efficiency of 19.4% is 2.4pp below the database median (21.8%)
  • At 193.8 W/m², this panel generates 24.3 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 23.0 kg, this panel is 3.5 kg lighter than database median (26.5 kg) - easier handling during installation
  • Ranked #12735 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 390 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.40 % Weak Segment median 21.26%
Vmpp · Impp 41.40 V · 9.43 A Operating point at max power
Voc · Isc 48.60 V · 10.03 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 · bottom 18%
Cells 144 Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.300 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 Weak bottom 19% · median 30 yrs
End-of-warranty output 84.3 % Equals 318 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 -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VDS Renewable VDS-S144/FNH-390W 390 W 19.40% -0.340 23.0 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +50 W, cooler, +3.7 pp
GKA210M340W 340 W 23.00% - 16.2 kg -50 W, lighter, +3.6 pp
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.6 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.6 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.6 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.6 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.6 pp, +5 yr warranty
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +50 W, cooler, +3.5 pp
VDS-S144/FNH-395W 395 W 19.60% -0.340 23.0 kg +0.2 pp
VDS-S144/FNH-400W 400 W 19.90% -0.340 23.0 kg +10 W, +0.5 pp
VDS-S144/FNH-405W 405 W 20.10% -0.340 23.0 kg +15 W, +0.7 pp
VDS-S144/FNH-410W 410 W 20.40% -0.340 23.0 kg +20 W, +1.0 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +85 W, +4.6 pp, +15 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +80 W, +4.3 pp, +15 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg +75 W, +4.1 pp, +15 yr warranty
MS480NC-HJTPBFT 480 W 22.10% -0.260 23.0 kg +90 W, cooler, +2.7 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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