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NE19R-645 vs NED19RC.20 11 of 19 identical Swap Change panels

Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NED19RC.20

Trina Solar TSM-NE19R-645
TSM-NE19R-645
645 Wp 23.80 % TOPCon
Open panel page Datasheet PDF
VS
TSM-NED19RC.20
645 Wp 23.90 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

NE19R-645 leads on the differences that matter

The largest is performance warranty: 5 yrs longer. 11 of 19 comparable parameters are identical.

See all 8 differences
How alike are they
11 of 19 comparable
parameters are identical
identical differs
01

What actually differs

8 of 19 parameters
Parameter NE19R-645 NED19RC.20 Difference
Performance warranty 25 yrs 30 yrs 5 yrs longer
Weight 27.9 kg 39.7 kg 11.8 kg lighter
Weight per kWp 43.3 kg/kWp 61.6 kg/kWp 18.3 kg/kWp lighter
Open-circuit voltage 51.20 V 49.52 V 1.68 V apart
Bifacial No Yes No vs Yes
Short-circuit current 15.99 A 16.55 A 0.56 A apart
Voltage at max power 42.90 V 41.22 V 1.68 V apart
Current at max power 15.04 A 15.65 A 0.61 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
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.
NE19R-645
21,641 kWh
NED19RC.20
21,641 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario NE19R-645 NED19RC.20
Standard test conditions 25 °C 100.0% of rated power 645 W 645 W
Cool, bright day 40 °C 95.7% of rated power 617 W 617 W
Typical summer roof 55 °C 91.3% of rated power 589 W 589 W
Hot roof 70 °C 87.0% of rated power 561 W 561 W
03

Full specification

Parameter NE19R-645 NED19RC.20 Difference
Power and efficiency
Rated power 645 Wp 645 Wp Same
Module efficiency 23.80 % 23.90 % Effectively the same
Power density 238.8 Wp/m² 238.8 Wp/m² Same
Open-circuit voltage 51.20 V 49.52 V 1.68 V apart
Voltage at max power 42.90 V 41.22 V 1.68 V apart
Short-circuit current 15.99 A 16.55 A 0.56 A apart
Current at max power 15.04 A 15.65 A 0.61 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2382x1134x30 mm Same
Module area 2.701 m² 2.701 m² Same
Weight 27.9 kg 39.7 kg -11.8 kg for NE19R-645
Weight per kWp 43.3 kg/kWp 61.6 kg/kWp -18.3 kg/kWp for NE19R-645
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 25 yrs 30 yrs +5 yrs for NED19RC.20
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#433 vs #351
NED19RC.20 leads by 82 places
Power density
#356 vs #356
Tied - the same position in the database
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#285 vs #12,660
NE19R-645 leads by 12,375 places
Warranty
#9,798 vs #21
NED19RC.20 leads by 9,777 places
Overall
#1,888 vs #1,431
NED19RC.20 leads by 457 places
05

More useful comparisons

Open the full database
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NEG19RC.20Q
12 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NEG19RC.20-650
9 differences, the largest is performance warranty
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NE19R-650
One difference: module efficiency
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NEG19RC.20-645
8 differences, the largest is performance warranty
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NEG19RC.20-640
8 differences, the largest is performance warranty
Same series, other bin
Trina Solar TSM-NE19R-645 vs Trina Solar TSM-NE19R-640
The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: Trina Solar TSM-NE19R-645 or Trina Solar TSM-NED19RC.20?
According to our database: Trina Solar TSM-NED19RC.20 has higher module efficiency (23.90% vs 23.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-NE19R-645 and Trina Solar TSM-NED19RC.20?
Trina Solar TSM-NE19R-645 has a module efficiency of 23.80%, while Trina Solar TSM-NED19RC.20 is 23.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-NE19R-645 use vs Trina Solar TSM-NED19RC.20?
Trina Solar TSM-NE19R-645 uses TOPCon cells; Trina Solar TSM-NED19RC.20 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-645 and Trina Solar TSM-NED19RC.20?
Trina Solar TSM-NE19R-645 has a 25 years power warranty; Trina Solar TSM-NED19RC.20 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-645 and Trina Solar TSM-NED19RC.20 bifacial panels?
Trina Solar TSM-NED19RC.20 is bifacial (captures light from both faces); Trina Solar TSM-NE19R-645 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 250 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.