Trina Solar TSM-DE09.08-400 vs Trina Solar TSM-DE09R-435
VS
The verdict
DE09R-435 leads on the differences that matter
The largest is module efficiency: 1.00 pp more efficient. 7 of 19 comparable parameters are identical.
See all 12 differencesHow alike are they
7
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
12 of 19 parameters
What actually differs
Parameter
DE09.08-400
DE09R-435
Difference
Module efficiency
20.80 %
21.80 %
1.00 pp more efficient
Rated power
400 Wp
435 Wp
35 W more power
Power density
208.1 Wp/m²
217.7 Wp/m²
9.6 Wp/m² higher
Product warranty
15 yrs
12 yrs
3 yrs longer
Open-circuit voltage
41.20 V
50.40 V
9.20 V apart
Module area
1.922 m²
1.998 m²
0.076 m² apart
Short-circuit current
12.28 A
10.67 A
1.61 A apart
Voltage at max power
34.20 V
42.50 V
8.30 V apart
Cell count
120
144
24 cells apart
Weight per kWp
52.5 kg/kWp
50.1 kg/kWp
2.4 kg/kWp lighter
Current at max power
11.70 A
10.24 A
1.46 A apart
Dimensions
1754x1096x30 mm
1762x1134x30 mm
1754x1096x30 mm vs 1762x1134x30 mm
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.
DE09.08-400
12,964 kWh
DE09R-435
14,098 kWh
Lifetime gap
1,134 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
DE09.08-400
DE09R-435
Standard test conditions
25 °C
100.0% of rated power
400 W
435 W
Cool, bright day
40 °C
94.9% of rated power
380 W
413 W
Typical summer roof
55 °C
89.8% of rated power
359 W
391 W
Hot roof
70 °C
84.7% of rated power
339 W
368 W
03
Full specification
Parameter
DE09.08-400
DE09R-435
Difference
Power and efficiency
Rated power
400 Wp
435 Wp
+35 W for DE09R-435
Module efficiency
20.80 %
21.80 %
+1.00 pp for DE09R-435
Power density
208.1 Wp/m²
217.7 Wp/m²
+9.6 Wp/m² for DE09R-435
Open-circuit voltage
41.20 V
50.40 V
9.20 V apart
Voltage at max power
34.20 V
42.50 V
8.30 V apart
Short-circuit current
12.28 A
10.67 A
1.61 A apart
Current at max power
11.70 A
10.24 A
1.46 A apart
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
1754x1096x30 mm
1762x1134x30 mm
1754x1096x30 mm vs 1762x1134x30 mm
Module area
1.922 m²
1.998 m²
0.076 m² apart
Weight
21.0 kg
21.8 kg
Effectively the same
Weight per kWp
52.5 kg/kWp
50.1 kg/kWp
-2.4 kg/kWp for DE09R-435
Warranty and degradation
Product warranty
15 yrs
12 yrs
+3 yrs for DE09.08-400
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
120
144
24 cells apart
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#10,533
vs
#7,085
DE09R-435 leads by 3,448 places
Power density
#10,542
vs
#7,129
DE09R-435 leads by 3,413 places
Heat behaviour
#8,846
vs
#8,846
Tied - the same position in the database
Weight
#6,090
vs
#3,628
DE09R-435 leads by 2,462 places
Warranty
#9,912
vs
#9,912
Tied - the same position in the database
Overall
#11,723
vs
#10,762
DE09R-435 leads by 961 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-DE09.08-400 or Trina Solar TSM-DE09R-435?
According to our database: Trina Solar TSM-DE09R-435 has higher module efficiency (21.80% vs 20.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-DE09.08-400 and Trina Solar TSM-DE09R-435?
Trina Solar TSM-DE09.08-400 has a module efficiency of 20.80%, while Trina Solar TSM-DE09R-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-DE09.08-400 use vs Trina Solar TSM-DE09R-435?
Trina Solar TSM-DE09.08-400 uses PERC cells; Trina Solar TSM-DE09R-435 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-DE09.08-400 and Trina Solar TSM-DE09R-435?
Trina Solar TSM-DE09.08-400 has a 25 years power warranty; Trina Solar TSM-DE09R-435 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 193 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.