Trina Solar TSM-DE09R.08-430 vs Trina Solar TSM-DE09R-420
VS
The verdict
DE09R.08-430 leads on the differences that matter
The largest is module efficiency: 0.50 pp more efficient. 15 of 19 comparable parameters are identical.
See all 4 differencesHow alike are they
15
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
4 of 19 parameters
What actually differs
Parameter
DE09R.08-430
DE09R-420
Difference
Module efficiency
21.50 %
21.00 %
0.50 pp more efficient
Product warranty
15 yrs
12 yrs
3 yrs longer
Power density
215.2 Wp/m²
210.2 Wp/m²
5.0 Wp/m² higher
Rated power
430 Wp
420 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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
DE09R.08-430
13,936 kWh
DE09R-420
13,612 kWh
Lifetime gap
324 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
DE09R.08-430
DE09R-420
Standard test conditions
25 °C
100.0% of rated power
430 W
420 W
Cool, bright day
40 °C
94.9% of rated power
408 W
399 W
Typical summer roof
55 °C
89.8% of rated power
386 W
377 W
Hot roof
70 °C
84.7% of rated power
364 W
356 W
03
Full specification
Parameter
DE09R.08-430
DE09R-420
Difference
Power and efficiency
Rated power
430 Wp
420 Wp
+10 W for DE09R.08-430
Module efficiency
21.50 %
21.00 %
+0.50 pp for DE09R.08-430
Power density
215.2 Wp/m²
210.2 Wp/m²
+5.0 Wp/m² for DE09R.08-430
Open-circuit voltage
50.30 V
50.10 V
Effectively the same
Voltage at max power
42.30 V
42.00 V
Effectively the same
Short-circuit current
10.64 A
10.58 A
Effectively the same
Current at max power
10.17 A
10.01 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1762x1134x30 mm
Same
Module area
1.998 m²
1.998 m²
Same
Weight
21.8 kg
21.8 kg
Same
Weight per kWp
50.7 kg/kWp
51.9 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
12 yrs
+3 yrs for DE09R.08-430
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.55 %/yr
0.55 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#7,958
vs
#9,758
DE09R.08-430 leads by 1,800 places
Power density
#7,816
vs
#9,728
DE09R.08-430 leads by 1,912 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#4,114
vs
#5,315
DE09R.08-430 leads by 1,201 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#10,629
vs
#11,507
DE09R.08-430 leads by 878 places
05
Open the full database
More useful comparisons
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06
Written summary
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07
Questions about this pairing
Which panel is better: Trina Solar TSM-DE09R.08-430 or Trina Solar TSM-DE09R-420?
According to our database: Trina Solar TSM-DE09R.08-430 has higher module efficiency (21.50% vs 21.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-DE09R.08-430 and Trina Solar TSM-DE09R-420?
Trina Solar TSM-DE09R.08-430 has a module efficiency of 21.50%, while Trina Solar TSM-DE09R-420 is 21.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-DE09R.08-430 use vs Trina Solar TSM-DE09R-420?
Trina Solar TSM-DE09R.08-430 uses PERC cells; Trina Solar TSM-DE09R-420 uses PERC. 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-DE09R.08-430 and Trina Solar TSM-DE09R-420?
Trina Solar TSM-DE09R.08-430 has a 25 years power warranty; Trina Solar TSM-DE09R-420 has a 25 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 241 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.