Trina Solar TSM-NEG9RC.27-450 vs JA Solar JAM54D41-455/LB
VS
The verdict
JAM54D41-455/LB leads on the differences that matter
The largest is open-circuit voltage: 13.40 V apart. 12 of 19 comparable parameters are identical.
See all 7 differencesHow alike are they
12
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
7 of 19 parameters
What actually differs
Parameter
TSM-NEG9RC.27-450
JAM54D41-455/LB
Difference
Open-circuit voltage
52.90 V
39.50 V
13.40 V apart
Short-circuit current
10.74 A
14.95 A
4.21 A apart
Module efficiency
22.50 %
22.80 %
0.30 pp more efficient
Voltage at max power
44.60 V
32.83 V
11.77 V apart
Current at max power
10.09 A
13.99 A
3.90 A apart
Cell count
144
108
36 cells apart
Weight
21.0 kg
22.0 kg
1.0 kg lighter
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
TSM-NEG9RC.27-450
15,098 kWh
JAM54D41-455/LB
15,266 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TSM-NEG9RC.27-450
JAM54D41-455/LB
Standard test conditions
25 °C
100.0% of rated power
450 W
455 W
Cool, bright day
40 °C
95.7% of rated power
430 W
435 W
Typical summer roof
55 °C
91.3% of rated power
411 W
415 W
Hot roof
70 °C
87.0% of rated power
391 W
396 W
03
Full specification
Parameter
TSM-NEG9RC.27-450
JAM54D41-455/LB
Difference
Power and efficiency
Rated power
450 Wp
455 Wp
Effectively the same
Module efficiency
22.50 %
22.80 %
+0.30 pp for JAM54D41-455/LB
Power density
225.2 Wp/m²
227.7 Wp/m²
Effectively the same
Open-circuit voltage
52.90 V
39.50 V
13.40 V apart
Voltage at max power
44.60 V
32.83 V
11.77 V apart
Short-circuit current
10.74 A
14.95 A
4.21 A apart
Current at max power
10.09 A
13.99 A
3.90 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1762x1134x30 mm
Same
Module area
1.998 m²
1.998 m²
Same
Weight
21.0 kg
22.0 kg
-1.0 kg for TSM-NEG9RC.27-450
Weight per kWp
46.7 kg/kWp
48.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
108
36 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#4,281
vs
#2,769
JAM54D41-455/LB leads by 1,512 places
Power density
#4,284
vs
#2,943
JAM54D41-455/LB leads by 1,341 places
Heat behaviour
#2,220
vs
#2,220
Tied - the same position in the database
Weight
#1,258
vs
#2,224
TSM-NEG9RC.27-450 leads by 966 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,400
vs
#7,876
JAM54D41-455/LB leads by 524 places
05
Open the full database
More useful comparisons
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Trina Solar TSM-NEG9RC.27-450 vs Trina Solar TSM-NEG9RC.27-445
One difference: module efficiency
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Trina Solar TSM-NEG9RC.27-450 vs Trina Solar TSM-NEG9RC.27-440
3 differences, the largest is module efficiency
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Trina Solar TSM-NEG9RC.27-450 vs Trina Solar TSM-NEG9RC.27-435
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Trina Solar TSM-NEG9RC.27-450 vs Trina Solar TSM-NEG9RC.27-430
6 differences, the largest is module efficiency
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6 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM54D41-455/LB vs JA Solar JAM54D40-475/LB
6 differences, the largest is module efficiency
06
Written summary
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07
Questions about this pairing
Which panel is better: Trina Solar TSM-NEG9RC.27-450 or JA Solar JAM54D41-455/LB?
According to our database: JA Solar JAM54D41-455/LB has higher module efficiency (22.80% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-NEG9RC.27-450 and JA Solar JAM54D41-455/LB?
Trina Solar TSM-NEG9RC.27-450 has a module efficiency of 22.50%, while JA Solar JAM54D41-455/LB is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-NEG9RC.27-450 use vs JA Solar JAM54D41-455/LB?
Trina Solar TSM-NEG9RC.27-450 uses TOPCon cells; JA Solar JAM54D41-455/LB 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 Trina Solar TSM-NEG9RC.27-450 and JA Solar JAM54D41-455/LB?
Trina Solar TSM-NEG9RC.27-450 has a 30 years power warranty; JA Solar JAM54D41-455/LB 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 Trina Solar TSM-NEG9RC.27-450 and JA Solar JAM54D41-455/LB bifacial panels?
Both Trina Solar TSM-NEG9RC.27-450 and JA Solar JAM54D41-455/LB 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.
Shop prices: See 194 Trina Solar offers · See 328 JA 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.