Trina Solar TSM-NE19R-620 vs Trina Solar TSM-NEG19RC.20Q
VS
The verdict
NEG19RC.20Q leads on the differences that matter
The largest is module efficiency: 1.80 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
NE19R-620
NEG19RC.20Q
Difference
Module efficiency
23.00 %
24.80 %
1.80 pp more efficient
Rated power
620 Wp
670 Wp
50 W more power
Power density
229.5 Wp/m²
248.0 Wp/m²
18.5 Wp/m² higher
Performance warranty
25 yrs
30 yrs
5 yrs longer
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
0.030 %/°C better in heat
Weight
27.9 kg
33.0 kg
5.1 kg lighter
Weight per kWp
45.0 kg/kWp
49.3 kg/kWp
4.3 kg/kWp lighter
Annual degradation
0.40 %/yr
0.35 %/yr
0.05 %/yr slower
Cell count
132
264
132 cells apart
Bifacial
No
Yes
No vs Yes
Short-circuit current
15.91 A
16.60 A
0.69 A apart
Open-circuit voltage
49.60 V
50.95 V
1.35 V apart
Current at max power
14.99 A
15.94 A
0.95 A apart
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
NE19R-620
20,802 kWh
NEG19RC.20Q
22,655 kWh
Lifetime gap
1,853 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
NE19R-620
NEG19RC.20Q
Standard test conditions
25 °C
100.0% of rated power
620 W
670 W
Cool, bright day
40 °C
95.7% of rated power
593 W
644 W
Typical summer roof
55 °C
91.3% of rated power
566 W
618 W
Hot roof
70 °C
87.0% of rated power
539 W
592 W
03
Full specification
Parameter
NE19R-620
NEG19RC.20Q
Difference
Power and efficiency
Rated power
620 Wp
670 Wp
+50 W for NEG19RC.20Q
Module efficiency
23.00 %
24.80 %
+1.80 pp for NEG19RC.20Q
Power density
229.5 Wp/m²
248.0 Wp/m²
+18.5 Wp/m² for NEG19RC.20Q
Open-circuit voltage
49.60 V
50.95 V
1.35 V apart
Voltage at max power
41.40 V
42.04 V
Effectively the same
Short-circuit current
15.91 A
16.60 A
0.69 A apart
Current at max power
14.99 A
15.94 A
0.95 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
+0.030 %/°C for NEG19RC.20Q
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
27.9 kg
33.0 kg
-5.1 kg for NE19R-620
Weight per kWp
45.0 kg/kWp
49.3 kg/kWp
-4.3 kg/kWp for NE19R-620
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
30 yrs
+5 yrs for NEG19RC.20Q
Annual degradation
0.40 %/yr
0.35 %/yr
-0.05 %/yr for NEG19RC.20Q
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
264
132 cells apart
Bifacial
No
Yes
No vs Yes
04
14,129 panels
Against the whole database
Efficiency
#1,970
vs
#13
NEG19RC.20Q leads by 1,957 places
Power density
#2,243
vs
#15
NEG19RC.20Q leads by 2,228 places
Heat behaviour
#2,220
vs
#515
NEG19RC.20Q leads by 1,705 places
Weight
#574
vs
#2,832
NE19R-620 leads by 2,258 places
Warranty
#9,912
vs
#21
NEG19RC.20Q leads by 9,891 places
Overall
#3,451
vs
#497
NEG19RC.20Q leads by 2,954 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: Trina Solar TSM-NE19R-620 or Trina Solar TSM-NEG19RC.20Q?
According to our database: Trina Solar TSM-NEG19RC.20Q has higher module efficiency (24.80% vs 23.00%); Trina Solar TSM-NEG19RC.20Q tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-NE19R-620 and Trina Solar TSM-NEG19RC.20Q?
Trina Solar TSM-NE19R-620 has a module efficiency of 23.00%, while Trina Solar TSM-NEG19RC.20Q is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-NE19R-620 use vs Trina Solar TSM-NEG19RC.20Q?
Trina Solar TSM-NE19R-620 uses TOPCon cells; Trina Solar TSM-NEG19RC.20Q 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-NE19R-620 and Trina Solar TSM-NEG19RC.20Q?
Trina Solar TSM-NE19R-620 has a 25 years power warranty; Trina Solar TSM-NEG19RC.20Q 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-NE19R-620 and Trina Solar TSM-NEG19RC.20Q bifacial panels?
Trina Solar TSM-NEG19RC.20Q is bifacial (captures light from both faces); Trina Solar TSM-NE19R-620 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 189 Trina 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.