Skip to main content
STP-NT11/48QGDF-475 vs VSUN475N-120BMH-DG-BB 6 of 19 identical Swap Change panels

Suntech STP-NT11/48QGDF-475 vs VSUN VSUN475N-120BMH-DG-BB

Suntech STP-NT11/48QGDF-475
STP-NT11/48QGDF-475
475 Wp 23.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
VSUN
VSUN475N-120BMH-DG-BB
475 Wp 21.95 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

STP-NT11/48QGDF-475 leads on the differences that matter

The largest is module efficiency: 1.85 pp more efficient. 6 of 19 comparable parameters are identical.

See all 13 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter STP-NT11/48QGDF-475 VSUN475N-120BMH-DG-BB Difference
Module efficiency 23.80 % 21.95 % 1.85 pp more efficient
Temperature coefficient -0.260 %/°C -0.300 %/°C 0.040 %/°C better in heat
Power density 237.7 Wp/m² 219.5 Wp/m² 18.2 Wp/m² higher
Weight 21.5 kg 26.7 kg 5.2 kg lighter
Weight per kWp 45.3 kg/kWp 56.2 kg/kWp 10.9 kg/kWp lighter
Open-circuit voltage 36.53 V 42.53 V 6.00 V apart
Short-circuit current 16.43 A 14.23 A 2.20 A apart
Module area 1.998 m² 2.164 m² 0.166 m² apart
Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower
Voltage at max power 30.43 V 35.23 V 4.80 V apart
Current at max power 15.62 A 13.49 A 2.13 A apart
Cell count 192 120 72 cells apart
Dimensions 1762x1134x30 mm 1908x1134x30 mm 1762x1134x30 mm vs 1908x1134x30 mm
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
STP-NT11/48QGDF-475
16,061 kWh
VSUN475N-120BMH-DG-BB
15,937 kWh
Lifetime gap
124 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario STP-NT11/48QGDF-475 VSUN475N-120BMH-DG-BB
Standard test conditions 25 °C 100.0% of rated power 475 W 475 W
Cool, bright day 40 °C 95.5% of rated power 456 W 454 W
Typical summer roof 55 °C 91.0% of rated power 438 W 432 W
Hot roof 70 °C 86.5% of rated power 419 W 411 W
03

Full specification

Parameter STP-NT11/48QGDF-475 VSUN475N-120BMH-DG-BB Difference
Power and efficiency
Rated power 475 Wp 475 Wp Same
Module efficiency 23.80 % 21.95 % +1.85 pp for STP-NT11/48QGDF-475
Power density 237.7 Wp/m² 219.5 Wp/m² +18.2 Wp/m² for STP-NT11/48QGDF-475
Open-circuit voltage 36.53 V 42.53 V 6.00 V apart
Voltage at max power 30.43 V 35.23 V 4.80 V apart
Short-circuit current 16.43 A 14.23 A 2.20 A apart
Current at max power 15.62 A 13.49 A 2.13 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.300 %/°C +0.040 %/°C for STP-NT11/48QGDF-475
Mechanical
Dimensions 1762x1134x30 mm 1908x1134x30 mm 1762x1134x30 mm vs 1908x1134x30 mm
Module area 1.998 m² 2.164 m² 0.166 m² apart
Weight 21.5 kg 26.7 kg -5.2 kg for STP-NT11/48QGDF-475
Weight per kWp 45.3 kg/kWp 56.2 kg/kWp -10.9 kg/kWp for STP-NT11/48QGDF-475
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for STP-NT11/48QGDF-475
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 192 120 72 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#433 vs #6,745
STP-NT11/48QGDF-475 leads by 6,312 places
Power density
#467 vs #6,702
STP-NT11/48QGDF-475 leads by 6,235 places
Heat behaviour
#511 vs #6,093
STP-NT11/48QGDF-475 leads by 5,582 places
Weight
#669 vs #10,496
STP-NT11/48QGDF-475 leads by 9,827 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,753 vs #6,005
STP-NT11/48QGDF-475 leads by 2,252 places
05

More useful comparisons

Open the full database
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP730S-D66-Nsh+
14 differences, the largest is rated power
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP-NT11/66QGDF-670
11 differences, the largest is module efficiency
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP-NT11/66QGDF-665
11 differences, the largest is module efficiency
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP-NT11/66QGDF-660
11 differences, the largest is rated power
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP-NT11/66QGDF-655
11 differences, the largest is rated power
Same series, other bin
Suntech STP-NT11/48QGDF-475 vs Suntech STP-NT11/66QGDF-650
10 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Suntech STP-NT11/48QGDF-475 or VSUN VSUN475N-120BMH-DG-BB?
According to our database: Suntech STP-NT11/48QGDF-475 has higher module efficiency (23.80% vs 21.95%); Suntech STP-NT11/48QGDF-475 tolerates heat better (temp coeff -0.260%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Suntech STP-NT11/48QGDF-475 and VSUN VSUN475N-120BMH-DG-BB?
Suntech STP-NT11/48QGDF-475 has a module efficiency of 23.80%, while VSUN VSUN475N-120BMH-DG-BB is 21.95%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Suntech STP-NT11/48QGDF-475 use vs VSUN VSUN475N-120BMH-DG-BB?
Suntech STP-NT11/48QGDF-475 uses TOPCon cells; VSUN VSUN475N-120BMH-DG-BB uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Suntech STP-NT11/48QGDF-475 and VSUN VSUN475N-120BMH-DG-BB?
Suntech STP-NT11/48QGDF-475 has a 30 years power warranty; VSUN VSUN475N-120BMH-DG-BB has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are Suntech STP-NT11/48QGDF-475 and VSUN VSUN475N-120BMH-DG-BB bifacial panels?
Both Suntech STP-NT11/48QGDF-475 and VSUN VSUN475N-120BMH-DG-BB are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Compare Suntech and VSUN as manufacturers Portfolio, efficiency, cell technologies and warranty terms

Shop prices: See 31 Suntech offers · See 3 VSUN offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.