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Hyundai Brand review

HIE-S405VG

405 Wp PERC
ComparePV verdict

Strong in heat, no clear weak spot

Rank 10,474 of 14,005
Compare panels Datasheet PDF
Power (Wp)
405
Typical for its class
Efficiency (%)
20.70
Typical · median 20.60%
Density (Wp/m²)
206.7
Typical · median 206.2
Temp (%/°C)
-0.340
Strong · top 24%
Weight (kg)
22.0
Typical · median 22.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

Hyundai VG SERIES photovoltaic panels are an advanced solution based on innovative shingled technology (Shingled Technology), which redefines standards of efficiency and aesthetics. Unlike traditional modules, the cells in this series overlap, which eliminates the need for metal busbars and significantly reduces gaps between cells. This design not only increases the active surface area of the panel but, above all, minimizes the risk of hot-spots and increases resistance to micro-cracks. For the investor, this means higher energy yields even in demanding weather conditions. The VG series was designed for users seeking maximum reliability in partial shading conditions, as the specific connection layout allows for more efficient operation of the entire string with limited sun exposure. The unique design and uniformly dark surface make the panels blend perfectly with modern residential roof architecture. By choosing this solution, you gain exceptional mechanical durability confirmed by rigorous testing, which distinguishes the brand from its Asian competition. This is the optimal choice for residential and commercial installations, where long-term investment security and stable efficiency over decades of operation are of key importance.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.70% 20.60% Typical 10,764
Power density 206.7 206.2 Typical 10,965
Temperature coefficient -0.340 -0.350 Strong · top 24% 8,778
Weight per kWp 54.3 53.0 Typical 8,586
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 3 caution
Best for

Residential, commercial and shaded-installations.

Strengths
-0.340 %/°C temperature coefficient

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

What owners get
Shingled cell technology with ECA bonding

Using electrically conductive adhesive (ECA) instead of soldering ribbon eliminates metallic busbars, reduces hot-spot risk and microcrack propagation, and improves performance under partial shading. Lower current per internal circuit directly limits the probability of localized cell overheating — confirmed by pv-magazine.com in its February 2021 review.

Module efficiency up to 20.9%

Peak module efficiency of 20.9% exceeds the comparable VDS S144/FNH (20.4%) and places the series in the upper half of its peer group for the 2020–2023 period. The 19.9–20.9% range for a 60-cell M6 166 mm layout was above the prevailing monoSi PERC market standard at time of release.

Temperature coefficient of -0.34%/°C

The Pmax temperature coefficient of -0.34%/°C is more favorable than the typical -0.35 to -0.40%/°C range for standard PERC modules, resulting in higher energy yield on hot summer days and in high ambient temperature climates.

Tier-1 bankable manufacturer + 25-year linear warranty

Hyundai Energy Solutions holds Tier-1 bankable status (BNEF), reducing long-term financial risk for institutional investors and project lenders. The VG series provides a 25-year product warranty and a 25-year linear power output guarantee, consistent with leading global PV manufacturers.

Trade-offs
Series discontinued (2023)

Production of the VG series ended in 2023, limiting the availability of matching modules for system expansion, increasing the risk of no identical replacements in the event of module failure, and potentially reducing service support after 2025. For new installations, this represents elevated capacity risk during any future scale-up.

PERC technology vs. N-type TOPCon peers

The direct peer comparable — Luxor Eco Line N-type TOPCon Bifacial — achieves 21.33% module efficiency versus the VG series' 20.9% maximum, a gap of approximately 0.43 percentage points. N-type cells also exhibit lower LID/LeTID degradation and superior high-temperature performance that PERC cannot match.

Monofacial design — no bifacial gain

The VG series is monofacial, whereas the Luxor Eco Line Bifacial delivers the same 410 W front-side nameplate power plus additional albedo-driven yield from the rear surface. On light-colored substrates or tracker-mounted systems, bifacial modules typically generate 5–15% more energy annually than monofacial equivalents — an advantage the VG series cannot provide.

Notes from the database
  • At 20.7% efficiency, this panel is on par with typical PERC 400-450W modules
  • At 206.7 W/m² power density, roof space requirements are typical for PERC 400-450W panels
  • At -0.34%/°C, hot weather performance is typical for PERC 400-450W panels
  • In the top 77% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 405 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.70 % Typical Segment median 20.60%
Vmpp · Impp 38.70 V · 10.47 A Operating point at max power
Voc · Isc 46.50 V · 11.02 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1719×1140×35 mm · 1.96 m² of roof
Weight 22.0 kg Typical Typical · median 22.0 kg
Coefficient Pmax -0.340 %/°C Strong top 24% of its segment
Coefficient Voc · Isc -0.270 · 0.040 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 332 W guaranteed
Degradation 2.00 → 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
Hyundai HIE-S405VG 405 W 20.70% -0.340 22.0 kg You are here
AIKO-455-MAH54Db 455 W 23.30% -0.260 24.0 kg +50 W, cooler, +2.6 pp
LR5-54HTH-455M 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
YL455CF54 e/2 455 W 23.30% -0.290 20.3 kg +50 W, cooler, +2.6 pp
ESM-455T 455 W 23.30% -0.310 21.0 kg +50 W, +2.6 pp, +5 yr warranty
SE5-54HBC-455W 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
JST-EDMH-(445-465)W-TD (455W class) 455 W 23.30% -0.300 20.5 kg +50 W, +2.6 pp, +5 yr warranty
LX-455M/182R-96+ GG 455 W 23.30% -0.260 23.5 kg +50 W, cooler, +2.6 pp
HIE-S390VG 390 W 19.90% -0.340 22.0 kg -15 W, -0.8 pp
HIE-S395VG 395 W 20.20% -0.340 22.0 kg -10 W, -0.5 pp
HIE-S400VG 400 W 20.40% -0.340 22.0 kg -0.3 pp
HIE-S410VG 410 W 20.90% -0.340 22.0 kg Very close match
HiT-H425MF-FB 425 W 21.80% -0.260 22.0 kg Cooler, +1.1 pp, +5 yr warranty
HiT-H430MF-FB 430 W 22.02% -0.260 22.0 kg Cooler, +1.3 pp, +5 yr warranty
HiT-H435MF-FB 435 W 22.28% -0.260 22.0 kg Cooler, +1.6 pp, +5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +105 W, cooler, +4.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +90 W, cooler, +4.1 pp

Found 1746 panels of the same or similar size to this one, within ±10 mm. See them here Found 1902 panels of the same or similar size to this one, within ±25 mm. See them here Found 3386 panels of the same or similar size to this one, within ±50 mm. See them here Found 3817 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the shingled cell technology used in the Hyundai VG SERIES and how does it differ from standard solar modules?
In the VG Series, PERC cells overlap like roof shingles, eliminating metal busbars entirely. This increases the active panel surface, significantly reduces the risk of hot spots and micro-cracks compared to conventional modules, and delivers module efficiency up to 20.9%. The result is more stable long-term output throughout the panel's service life.
What warranty does the Hyundai VG SERIES come with and what exactly does it cover?
Hyundai provides a 25-year product warranty and a 25-year linear power warranty. The power warranty guarantees at least 98% of rated output in year one, with annual degradation not exceeding 0.55%. This means the panel should still deliver over 85% of its nameplate power after 25 years of operation.
Do Hyundai VG SERIES panels perform well under partial shading – for example from a chimney or dormers?
Yes, the interconnection design of shingled technology limits losses caused by partial shading. Unlike conventional modules, shading one cell does not block the entire cell string, resulting in higher energy yields on rooftops with chimneys, dormers, or nearby trees. This makes the VG Series a solid choice for residential installations with complex roof geometries.
What are the dimensions and weight of a 410 Wp Hyundai VG SERIES panel – can it be mounted on a standard pitched roof?
The 410 Wp module measures 1,719 × 1,140 × 35 mm and weighs approximately 22 kg. These are standard residential panel dimensions compatible with typical racking systems for pitched and flat roofs. The weight is within the average range for this power class, so most roof structures do not require additional reinforcement.
Is the Hyundai VG SERIES still available for purchase?
The VG Series has been discontinued and is no longer actively manufactured by Hyundai Energy Solutions. New units may occasionally be found at distributors with remaining warehouse stock. If you are planning a new installation, it is worth considering Hyundai's current product lineup or equivalent Tier 1 shingled-technology modules from other manufacturers.
Are Hyundai VG SERIES panels bifacial – do they generate power from both sides?
No, the VG Series are monofacial modules. Power is generated exclusively from the front active surface. If bifacial technology is a priority for your project – particularly for installations on light-colored substrates or flat roofs where rear-side irradiance can be captured – you should look at other series equipped with bifacial cells.
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