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Suntech STP495S-H54-Nkh+
Suntech Brand review

STP495S-H54-Nkh+

495 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 6,977 of 14,129
Compare panels Datasheet PDF
Power (Wp)
495
Strong · top 4%
Efficiency (%)
22.30
Typical · median 22.52%
Density (Wp/m²)
222.6
Typical · median 225.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
23.5
Strong · top 24%
Warranty (yrs)
30
Typical · median 30 yrs

Suntech Ultra V Pro mini series (STPXXXS-H54-Nkh+) are glass-glass modules designed to genuinely increase energy yield while simultaneously minimizing operational risks. The application of N-type TOPCon cells in half-cell technology helps maintain high efficiency across a wide range of operating conditions - including during overcast conditions, in the morning, and at night, when many standard panels significantly lose performance. This is a strong response to diffuse light conditions, particularly relevant in regions with significant reliance on such conditions for annual energy production. Compared to competitors, the series stands out due to meticulously refined structural details, such as multi-busbar technology, which enhances current collection and reliability, and robust environmental resistance (including resistance to salt fog and ammonia). For investors, this means fewer concerns about micro-cracks and more stable parameters over time, supported by a long linear power warranty. The Ultra V Pro mini will perform excellently in commercial and industrial installations, PV farms, and projects where high yield per square meter and reliable performance over years are key factors.

Ranking

1,096 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 22.52% Typical 5,161
Power density 222.6 225.2 Typical 5,584
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 47.5 52.2 Strong · top 24% 1,708
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 0 caution
Best for

Commercial and shaded-installations.

Strengths
47.5 kg per kWp

Top 24% of the TOPCon 450-500 W segment, against a median of 52.2.

Notes from the database
  • At 22.3% efficiency, this panel is on par with typical TOPCon 450-500W modules
  • Power density of 222.6 W/m² matches the TOPCon 450-500W median
  • At -0.29%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • Ranked #5161 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 495 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Typical Segment median 22.52%
Vmpp · Impp 33.10 V · 14.95 A Operating point at max power
Voc · Isc 39.91 V · 15.83 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 Strong Strong · top 24%
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 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 433 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 495 Wp appear here. The rest cover the whole series.

Current-Voltage and Power-Voltage curves at varying irradiance levels Current-Voltage and Power-Voltage curves at varying irradiance levels 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 STP495S-H54-Nkh+ 495 W 22.30% -0.290 23.5 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +15 W, cooler, +2.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +10 W, cooler, +2.4 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, heavier, +2.4 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +2.2 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, +2.2 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +2.2 pp
STP490S-H54-Nfb+ 490 W 22.00% -0.290 23.5 kg -0.3 pp
STP500S-H54-Nfb+ 500 W 22.50% -0.280 23.5 kg Very close match
STP505S-H54-Nfb+ 505 W 22.70% -0.280 23.5 kg +10 W, +0.4 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +65 W, cooler, +2.5 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +60 W, cooler, +2.3 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +55 W, lighter, +2.1 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +45 W, cooler, +2.1 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +45 W, cooler, +2.1 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +50 W, heavier, +2.0 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 1476 panels of the same or similar size to this one, within ±100 mm. See them here

About the Ultra V Pro mini (STPXXXS-H54-Nkh+) series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is the maximum power output of the Suntech Ultra V Pro mini STPXXXS-H54-Nkh+ panel?
Modules in the Ultra V Pro mini series reach up to 495 Wp of maximum power. This is achieved through N-type TOPCon half-cut cells combined with multi busbar technology, which together improve current collection efficiency and maintain high module performance despite a compact footprint compared to older panel generations.
What warranty comes with the Suntech Ultra V Pro mini panels?
The manufacturer provides a 15-year product warranty along with a 30-year linear power output warranty. This means the module retains a guaranteed percentage of its original power output over three decades, while manufacturing or material defects are covered during the first 15 years of operation.
How does N-type TOPCon technology in the Ultra V Pro mini differ from standard P-type panels?
N-type TOPCon cells exhibit lower light-induced degradation and better performance under high temperatures and low irradiance compared to traditional P-type PERC cells. In practice, this results in higher energy yields in the morning, evening, and on cloudy days-an important advantage in climates like Poland's, where diffuse light plays a significant role in annual energy balance.
Are the Ultra V Pro mini panels bifacial?
No, the Ultra V Pro mini series consists of monofacial modules built in a glass-glass configuration. While they don't generate power from the rear side, this construction offers greater resistance to microcracks, moisture, and corrosion compared to standard panels with a back sheet, resulting in more stable performance throughout the panel's lifespan.
What types of installations are the Suntech Ultra V Pro mini panels best suited for?
Thanks to their high per-unit power output of up to 495 Wp and strong environmental resistance-including to salt mist and ammonia-this series is primarily suited for commercial, industrial, and utility-scale PV farm installations, where maximizing energy yield per square meter of roof or ground space and ensuring predictable long-term performance are top priorities.
Is Suntech a Tier 1 manufacturer, and where are the Ultra V Pro mini panels made?
Yes, Suntech is classified as a Tier 1 manufacturer, meeting the highest bankability and financial stability criteria recognized by institutions financing PV projects. The company is headquartered in China and is one of the most recognized global suppliers of photovoltaic modules with decades of manufacturing experience.
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