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Suntech STP490S-H54-Nfb+
Suntech Brand review

STP490S-H54-Nfb+

490 Wp TOPCon
ComparePV verdict

Middle of its segment, modest efficiency

Rank 5,332 of 14,005
Compare panels Datasheet PDF
Power (Wp)
490
Strong · top 12%
Efficiency (%)
22.00
Weak · bottom 18%
Density (Wp/m²)
220.3
Weak · bottom 19%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
23.5
Typical · median 24.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

Suntech Ultra V Pro (Glass-Glass Monofacial) modules are designed for long-term, stable performance where predictable yield and high environmental resistance are key. The application of glass-glass construction genuinely enhances laminate rigidity and minimizes the risk of microcracks and humidity-related degradation - a practical advantage in installations exposed to large temperature fluctuations, wind, or heavy snow loads.

This series utilizes N-type TOPCon monocrystalline cells, which maintain their parameters over time and support high operational performance under varying sunlight conditions. Combined with multi-busbar and half-cut solutions, the module becomes more resistant to partial shading losses and thermal stress.

Ultra V Pro (Glass-Glass Monofacial) is particularly suitable for commercial and industrial rooftops, warehouses, and projects where long-term reliability and lower service risk are prioritized. It outshines competitors by focusing on the durability of the glass-glass package and the cell technology designed for real-world performance, not just catalog data.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.00% 22.52% Weak · bottom 18% 6,517
Power density 220.3 225.2 Weak · bottom 19% 6,276
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 48.0 52.2 Typical 1,984
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

Commercial and shaded-installations.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Watch-outs
22.00% module efficiency

Bottom 18% of the TOPCon 450-500 W segment, against a median of 22.52%.

220.3 watts per square metre

Bottom 19% of the TOPCon 450-500 W segment, against a median of 225.2.

Notes from the database
  • Module efficiency of 22.0% is 0.5pp below average for TOPCon 450-500W panels (median: 22.5%)
  • Power density of 220.3 W/m² is 4.8 W/m² below TOPCon 450-500W median (225.2 W/m²) - needs more roof space
  • At -0.29%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • Ranked #6517 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 490 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.00 % Weak Segment median 22.52%
Vmpp · Impp 32.90 V · 14.89 A Operating point at max power
Voc · Isc 39.70 V · 15.79 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1961×1134×30 mm · 2.22 m² of roof
Weight 23.5 kg Typical Typical · median 24.0 kg
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 428 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Suntech in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 490 Wp appear here. The rest cover the whole series.

Current-Voltage & Power-Voltage Curves Current-Voltage & Power-Voltage Curves Whole series

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
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Suntech STP490S-H54-Nfb+ 490 W 22.00% -0.290 23.5 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +20 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +15 W, cooler, +2.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +10 W, cooler, +2.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +2.5 pp
STP495S-H54-Nfb+ 495 W 22.30% -0.280 23.5 kg +0.3 pp
STP500S-H54-Nfb+ 500 W 22.50% -0.280 23.5 kg +10 W, +0.5 pp
STP505S-H54-Nfb+ 505 W 22.70% -0.280 23.5 kg +15 W, +0.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +70 W, cooler, +2.8 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +65 W, cooler, +2.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +60 W, lighter, +2.4 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +50 W, cooler, +2.4 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +50 W, cooler, +2.4 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +55 W, heavier, +2.3 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +55 W, cooler, +2.2 pp

Found 471 panels of the same or similar size to this one, within ±10 mm. See them here Found 508 panels of the same or similar size to this one, within ±25 mm. See them here Found 662 panels of the same or similar size to this one, within ±50 mm. See them here Found 1471 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 Suntech Ultra V Pro (Glass-Glass Monofacial) panels?
The Ultra V Pro series reaches a maximum power output of up to 490 Wp. This is achieved through N-type TOPCon monocrystalline cells combined with half-cut and multi-busbar technology, which reduce energy losses and ensure high conversion efficiency even under variable irradiance. This power rating makes the series attractive for both commercial installations and larger residential systems.
How does a glass-glass construction differ from a standard glass-backsheet panel?
In a glass-glass construction, cells are sealed between two glass sheets instead of glass and a rear polymer backsheet. This increases laminate rigidity and effectively reduces the risk of cell microcracks and moisture-related degradation. In practice, this means greater module durability under harsh conditions - large temperature swings, strong wind, or snow loads - resulting in lower failure risk over the system's lifetime.
What warranty comes with the Suntech Ultra V Pro panels?
The manufacturer offers a 25-year product warranty and a 30-year power output warranty. These are among the longest warranty periods available on the market, reflecting the manufacturer's confidence in the durability of the glass-glass construction and the long-term stability of TOPCon cell parameters. A long power warranty also means lower risk of energy yield decline over the years of operation.
Is the Ultra V Pro a bifacial panel?
No, the Ultra V Pro (Glass-Glass Monofacial) series is a monofacial module - despite its glass-glass construction, it generates power only from the front side of the panel. The dual-glass design here was chosen primarily for enhanced mechanical durability and moisture resistance, not for generating additional yield from the rear side as in bifacial modules.
What installations are the Ultra V Pro panels best suited for?
This series performs particularly well on commercial and industrial roofs, warehouses, and projects where long-term reliability and minimized service risk are top priorities. The reinforced glass-glass construction withstands harsh environmental conditions such as strong wind and snow loads well, making it a solid option for demanding climates too.
Is Suntech a Tier 1 manufacturer, and where are these panels produced?
Yes, Suntech is classified as a Tier 1 manufacturer, reflecting strong financial stability and a documented track record of large-scale supply to bankable projects. The company is headquartered in China, where it also runs its main production facilities. Tier 1 status matters for project financing, since banks and insurers often require panels from manufacturers in this category.
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