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VDS Renewable Brand review

VDS-S120/FNH-345W

345 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 12,672 of 14,005
Compare panels Datasheet PDF
Power (Wp)
345
Weak · bottom 16%
Efficiency (%)
20.40
Typical · median 20.67%
Density (Wp/m²)
204.5
Typical · median 206.3
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
19.0
Typical · median 21.5 kg
Warranty (yrs)
25
Weak · bottom 25%

The VDS Renewable VDS-S120/FNH series consists of monocrystalline modules based on PERC technology and half-cut cell design, specifically engineered for stable operation under real roof and ground conditions. The use of half-cut cells reduces the risk of hot spots and minimizes internal resistance losses, resulting in more reliable energy production even under partial shading or in installations exposed to uneven sunlight. The series also features high reliability, confirmed by IEC-compliant tests, as well as refined soldering quality, which supports long-term, trouble-free operation. The modules feature anti-reflective glass, allowing them to better utilize light in less ideal conditions, such as cloudy weather. Finally, the series offers robust mechanical resistance, which is important in the Polish climate (wind, snow). The VDS-S120/FNH series is suitable for home prosumer installations, small businesses, and renovation projects, where a reasonable balance between efficiency, durability, and predictability is key.

Ranking

4,143 panels in the 245-445 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.40% 20.67% Typical 11,598
Power density 204.5 206.3 Typical 11,521
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 55.1 54.6 Typical 9,477
Performance warranty 25 yrs 27 yrs Weak · bottom 25% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 25% of the 245-445 W band, against a median of 27 yrs.

Notes from the database
  • Efficiency of 20.4% is 1.4pp below the database median (21.8%)
  • Power density of 204.5 W/m² is 13.6 W/m² below database median (218.1 W/m²) - needs more roof space
  • -0.34%/°C temperature coefficient - 0.04pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • At 19.0 kg, this panel is 7.5 kg lighter than database median (26.5 kg) - easier handling during installation
  • #11598 for efficiency, #8778 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 345 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.40 % Typical Segment median 20.67%
Vmpp · Impp 35.30 V · 9.78 A Operating point at max power
Voc · Isc 41.30 V · 10.37 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1684×1002×35 mm · 1.69 m² of roof
Weight 19.0 kg Typical Typical · median 21.5 kg
Cells 120 Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 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 25% · median 27 yrs
End-of-warranty output 84.3 % Equals 281 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 -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VDS Renewable VDS-S120/FNH-345W 345 W 20.40% -0.340 19.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +2.9 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +2.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
GKA182M300W 300 W 23.00% - 16.2 kg -45 W, +2.6 pp, +5 yr warranty
GKA210M320W 320 W 23.00% - 16.2 kg Lighter, +2.6 pp, +5 yr warranty
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +2.6 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +2.6 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg +35 W, +2.6 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg +35 W, +2.6 pp, +5 yr warranty
VDS-S120/FNH-325W 325 W 19.20% -0.340 19.0 kg -20 W, -1.2 pp
VDS-S120/FNH-330W 330 W 19.50% -0.340 19.0 kg -15 W, -0.9 pp
VDS-S120/FNH-335W 335 W 19.80% -0.340 19.0 kg -10 W, -0.6 pp
VDS-S120/FNH-340W 340 W 20.10% -0.340 19.0 kg -0.3 pp
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +95 W, cooler, +2.5 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +90 W, cooler, +2.3 pp

Found 108 panels of the same or similar size to this one, within ±10 mm. See them here Found 218 panels of the same or similar size to this one, within ±25 mm. See them here Found 455 panels of the same or similar size to this one, within ±50 mm. See them here Found 799 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the VDS-S120/FNH panel and what installations does it suit?
Panels in the VDS-S120/FNH series reach a maximum power output of up to 345 Wp. Thanks to PERC technology and half-cut cell design, they work well for residential rooftop installations, small businesses, and retrofit projects where stable energy output at a reasonable budget matters.
Is the VDS-S120/FNH series still available for purchase?
No, the VDS-S120/FNH series has been discontinued and is no longer offered as a new product. Availability is limited to remaining distributor stock. When planning a new installation or expanding an existing system, it's worth checking VDS Renewable's current lineup for replacement models with similar specifications.
What warranty covers the VDS-S120/FNH panels and what does it include?
The manufacturer provides a 12-year product warranty and a 25-year power output warranty. The product warranty covers material and workmanship defects, while the power warranty guarantees a specified performance level over time, which is important when calculating the long-term return on investment of the installation.
What benefits do half-cut and PERC technology bring to the VDS-S120/FNH panels?
Splitting cells into halves (half-cut) reduces the risk of hot spots and lowers internal resistance losses, resulting in more reliable performance under partial shading, such as from chimneys or antennas. PERC technology further increases light-to-energy conversion efficiency, improving yield especially in lower-light conditions.
Are the VDS-S120/FNH panels bifacial and do they generate power from both sides?
No, the VDS-S120/FNH series consists of monofacial panels (not bifacial). This means energy is generated only from the front side of the module, which is the standard solution for most rooftop installations where the rear side has no access to reflected light.
Is the VDS-S120/FNH a Tier 1 panel, and does that matter when choosing modules?
VDS Renewable is not listed as a Tier 1 manufacturer under the Bloomberg NEF classification, indicating a smaller financial scale and shorter market track record than the largest industry players. This doesn't directly affect module quality, but it's worth factoring into your assessment of long-term warranty support risk.
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