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425 vs 435 16 of 19 identical Swap Change panels

Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG9RC.27-435

Trina Solar TSM-NEG9RC.27-425
TSM-NEG9RC.27-425
425 Wp 21.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Trina Solar TSM-NEG9RC.27-435
TSM-NEG9RC.27-435
435 Wp 21.80 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

435 leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 425 435 Difference
Module efficiency 21.30 % 21.80 % 0.50 pp more efficient
Power density 212.7 Wp/m² 217.7 Wp/m² 5.0 Wp/m² higher
Rated power 425 Wp 435 Wp 10 W more power
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.
425
14,260 kWh
435
14,595 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 425 435
Standard test conditions 25 °C 100.0% of rated power 425 W 435 W
Cool, bright day 40 °C 95.7% of rated power 407 W 416 W
Typical summer roof 55 °C 91.3% of rated power 388 W 397 W
Hot roof 70 °C 87.0% of rated power 370 W 378 W
03

Full specification

Parameter 425 435 Difference
Power and efficiency
Rated power 425 Wp 435 Wp +10 W for 435
Module efficiency 21.30 % 21.80 % +0.50 pp for 435
Power density 212.7 Wp/m² 217.7 Wp/m² +5.0 Wp/m² for 435
Open-circuit voltage 50.90 V 51.80 V Effectively the same
Voltage at max power 42.90 V 43.60 V Effectively the same
Short-circuit current 10.56 A 10.64 A Effectively the same
Current at max power 9.92 A 9.99 A Effectively the same
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 21.0 kg Same
Weight per kWp 49.4 kg/kWp 48.3 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 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#8,519 vs #7,022
435 leads by 1,497 places
Power density
#8,733 vs #7,066
435 leads by 1,667 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#2,909 vs #2,138
435 leads by 771 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#10,224 vs #9,574
435 leads by 650 places
05

More useful comparisons

Open the full database
Same series, other bin
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG9RC.27-450
6 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG9RC.27-445
6 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG9RC.27-440
5 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG9RC.27-430
One difference: module efficiency
Same manufacturer
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG21C.20Q-760
12 differences, the largest is module efficiency
Same manufacturer
Trina Solar TSM-NEG9RC.27-425 vs Trina Solar TSM-NEG21C.20Q-755
12 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Trina Solar TSM-NEG9RC.27-425 or Trina Solar TSM-NEG9RC.27-435?
According to our database: Trina Solar TSM-NEG9RC.27-435 has higher module efficiency (21.80% vs 21.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-NEG9RC.27-425 and Trina Solar TSM-NEG9RC.27-435?
Trina Solar TSM-NEG9RC.27-425 has a module efficiency of 21.30%, while Trina Solar TSM-NEG9RC.27-435 is 21.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-NEG9RC.27-425 use vs Trina Solar TSM-NEG9RC.27-435?
Trina Solar TSM-NEG9RC.27-425 uses TOPCon cells; Trina Solar TSM-NEG9RC.27-435 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.27-425 and Trina Solar TSM-NEG9RC.27-435?
Trina Solar TSM-NEG9RC.27-425 has a 30 years power warranty; Trina Solar TSM-NEG9RC.27-435 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.27-425 and Trina Solar TSM-NEG9RC.27-435 bifacial panels?
Both Trina Solar TSM-NEG9RC.27-425 and Trina Solar TSM-NEG9RC.27-435 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 213 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.