Suntech STP-NT11/48QGSF-475 vs Longi Solar LR7-54HVB-475M
VS
The verdict
STP-NT11/48QGSF-475 leads on the differences that matter
The largest is module efficiency: 0.50 pp more efficient. 8 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 10 differencesHow alike are they
8
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
10 of 18 parameters
What actually differs
Parameter
STP-NT11/48QGSF-475
LR7-54HVB-475M
Difference
Module efficiency
23.80 %
23.30 %
0.50 pp more efficient
Open-circuit voltage
36.53 V
40.18 V
3.65 V apart
Power density
237.7 Wp/m²
232.7 Wp/m²
5.0 Wp/m² higher
Short-circuit current
16.43 A
15.03 A
1.40 A apart
Cell technology
TOPCon
N-type
TOPCon vs N-type
Module area
1.998 m²
2.041 m²
0.043 m² apart
Cell count
192
108
84 cells apart
Voltage at max power
30.43 V
33.16 V
2.73 V apart
Current at max power
15.62 A
14.33 A
1.29 A apart
Dimensions
1762x1134x30 mm
1800x1134x30 mm
1762x1134x30 mm vs 1800x1134x30 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
Same temp coeff. for both panels (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
STP-NT11/48QGSF-475
16,061 kWh
LR7-54HVB-475M
16,061 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
STP-NT11/48QGSF-475
LR7-54HVB-475M
Standard test conditions
25 °C
100.0% of rated power
475 W
475 W
Cool, bright day
40 °C
96.1% of rated power
456 W
456 W
Typical summer roof
55 °C
92.2% of rated power
438 W
438 W
Hot roof
70 °C
88.3% of rated power
419 W
419 W
03
Full specification
Parameter
STP-NT11/48QGSF-475
LR7-54HVB-475M
Difference
Power and efficiency
Rated power
475 Wp
475 Wp
Same
Module efficiency
23.80 %
23.30 %
+0.50 pp for STP-NT11/48QGSF-475
Power density
237.7 Wp/m²
232.7 Wp/m²
+5.0 Wp/m² for STP-NT11/48QGSF-475
Open-circuit voltage
36.53 V
40.18 V
3.65 V apart
Voltage at max power
30.43 V
33.16 V
2.73 V apart
Short-circuit current
16.43 A
15.03 A
1.40 A apart
Current at max power
15.62 A
14.33 A
1.29 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1800x1134x30 mm
1762x1134x30 mm vs 1800x1134x30 mm
Module area
1.998 m²
2.041 m²
0.043 m² apart
Weight
21.5 kg
21.6 kg
Effectively the same
Weight per kWp
45.3 kg/kWp
45.5 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
-
Not published by Longi Solar
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.35 %/yr
Same
Technology
Cell technology
TOPCon
N-type
TOPCon vs N-type
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
192
108
84 cells apart
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#462
vs
#1,057
STP-NT11/48QGSF-475 leads by 595 places
Power density
#497
vs
#1,231
STP-NT11/48QGSF-475 leads by 734 places
Heat behaviour
#515
vs
#515
Tied - the same position in the database
Weight
#669
vs
#743
STP-NT11/48QGSF-475 leads by 74 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,803
vs
#9,602
STP-NT11/48QGSF-475 leads by 5,799 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Suntech STP-NT11/48QGSF-475 or Longi Solar LR7-54HVB-475M?
According to our database: Suntech STP-NT11/48QGSF-475 has higher module efficiency (23.80% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Suntech STP-NT11/48QGSF-475 and Longi Solar LR7-54HVB-475M?
Suntech STP-NT11/48QGSF-475 has a module efficiency of 23.80%, while Longi Solar LR7-54HVB-475M is 23.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Suntech STP-NT11/48QGSF-475 use vs Longi Solar LR7-54HVB-475M?
Suntech STP-NT11/48QGSF-475 uses TOPCon cells; Longi Solar LR7-54HVB-475M uses N-type. 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-NT11/48QGSF-475 and Longi Solar LR7-54HVB-475M?
Suntech STP-NT11/48QGSF-475 has a 30 years power warranty; Longi Solar LR7-54HVB-475M 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.
Shop prices: See 14 Suntech offers · See 147 Longi Solar 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.