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

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

VSUN
VSUN475N-120BMH-DG-BB
475 Wp 21.95 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Suntech STP-NT11/48QGDF-475
STP-NT11/48QGDF-475
475 Wp 23.80 % 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 VSUN475N-120BMH-DG-BB STP-NT11/48QGDF-475 Difference
Module efficiency 21.95 % 23.80 % 1.85 pp more efficient
Temperature coefficient -0.300 %/°C -0.260 %/°C 0.040 %/°C better in heat
Power density 219.5 Wp/m² 237.7 Wp/m² 18.2 Wp/m² higher
Weight 26.7 kg 21.5 kg 5.2 kg lighter
Weight per kWp 56.2 kg/kWp 45.3 kg/kWp 10.9 kg/kWp lighter
Open-circuit voltage 42.53 V 36.53 V 6.00 V apart
Short-circuit current 14.23 A 16.43 A 2.20 A apart
Module area 2.164 m² 1.998 m² 0.166 m² apart
Annual degradation 0.40 %/yr 0.35 %/yr 0.05 %/yr slower
Voltage at max power 35.23 V 30.43 V 4.80 V apart
Current at max power 13.49 A 15.62 A 2.13 A apart
Cell count 120 192 72 cells apart
Dimensions 1908x1134x30 mm 1762x1134x30 mm 1908x1134x30 mm vs 1762x1134x30 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
VSUN475N-120BMH-DG-BB
15,937 kWh
STP-NT11/48QGDF-475
16,061 kWh
Lifetime gap
124 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario VSUN475N-120BMH-DG-BB STP-NT11/48QGDF-475
Standard test conditions 25 °C 100.0% of rated power 475 W 475 W
Cool, bright day 40 °C 95.5% of rated power 454 W 456 W
Typical summer roof 55 °C 91.0% of rated power 432 W 438 W
Hot roof 70 °C 86.5% of rated power 411 W 419 W
03

Full specification

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

Against the whole database

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

More useful comparisons

Open the full database
Same series, other bin
VSUN
VSUN VSUN475N-120BMH-DG-BB vs VSUN VSUN470N-120BMH-DG-BB
One difference: module efficiency
Same series, other bin
VSUN
VSUN VSUN475N-120BMH-DG-BB vs VSUN VSUN465N-120BMH-DG-BB
3 differences, the largest is module efficiency
Same series, other bin
VSUN
VSUN VSUN475N-120BMH-DG-BB vs VSUN VSUN460N-120BMH-DG-BB
3 differences, the largest is module efficiency
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
06

Written summary

07

Questions about this pairing

Which panel is better: VSUN VSUN475N-120BMH-DG-BB or Suntech STP-NT11/48QGDF-475?
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 VSUN VSUN475N-120BMH-DG-BB and Suntech STP-NT11/48QGDF-475?
VSUN VSUN475N-120BMH-DG-BB has a module efficiency of 21.95%, while Suntech STP-NT11/48QGDF-475 is 23.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does VSUN VSUN475N-120BMH-DG-BB use vs Suntech STP-NT11/48QGDF-475?
VSUN VSUN475N-120BMH-DG-BB uses TOPCon cells; Suntech STP-NT11/48QGDF-475 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 VSUN VSUN475N-120BMH-DG-BB and Suntech STP-NT11/48QGDF-475?
VSUN VSUN475N-120BMH-DG-BB has a 30 years power warranty; Suntech STP-NT11/48QGDF-475 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 VSUN VSUN475N-120BMH-DG-BB and Suntech STP-NT11/48QGDF-475 bifacial panels?
Both VSUN VSUN475N-120BMH-DG-BB and Suntech STP-NT11/48QGDF-475 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 VSUN and Suntech as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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