Trina Solar TSM-DE19R-580 vs Trina Solar TSM-DE19-550
VS
The verdict
DE19R-580 leads on the differences that matter
The largest is module efficiency: 0.50 pp more efficient. 8 of 19 comparable parameters are identical.
See all 11 differencesHow alike are they
8
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
11 of 19 parameters
What actually differs
Parameter
DE19R-580
DE19-550
Difference
Module efficiency
21.50 %
21.00 %
0.50 pp more efficient
Rated power
580 Wp
550 Wp
30 W more power
Open-circuit voltage
46.30 V
37.90 V
8.40 V apart
Short-circuit current
15.94 A
18.52 A
2.58 A apart
Module area
2.701 m²
2.613 m²
0.088 m² apart
Power density
214.7 Wp/m²
210.5 Wp/m²
4.2 Wp/m² higher
Weight per kWp
48.4 kg/kWp
51.5 kg/kWp
3.0 kg/kWp lighter
Voltage at max power
39.00 V
31.60 V
7.40 V apart
Current at max power
14.86 A
17.40 A
2.54 A apart
Cell count
132
110
22 cells apart
Dimensions
2382x1134x30 mm
2384x1096x30 mm
2382x1134x30 mm vs 2384x1096x30 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.
DE19R-580
18,797 kWh
DE19-550
17,825 kWh
Lifetime gap
972 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
DE19R-580
DE19-550
Standard test conditions
25 °C
100.0% of rated power
580 W
550 W
Cool, bright day
40 °C
94.9% of rated power
550 W
522 W
Typical summer roof
55 °C
89.8% of rated power
521 W
494 W
Hot roof
70 °C
84.7% of rated power
491 W
466 W
03
Full specification
Parameter
DE19R-580
DE19-550
Difference
Power and efficiency
Rated power
580 Wp
550 Wp
+30 W for DE19R-580
Module efficiency
21.50 %
21.00 %
+0.50 pp for DE19R-580
Power density
214.7 Wp/m²
210.5 Wp/m²
+4.2 Wp/m² for DE19R-580
Open-circuit voltage
46.30 V
37.90 V
8.40 V apart
Voltage at max power
39.00 V
31.60 V
7.40 V apart
Short-circuit current
15.94 A
18.52 A
2.58 A apart
Current at max power
14.86 A
17.40 A
2.54 A apart
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2384x1096x30 mm
2382x1134x30 mm vs 2384x1096x30 mm
Module area
2.701 m²
2.613 m²
0.088 m² apart
Weight
28.1 kg
28.3 kg
Effectively the same
Weight per kWp
48.4 kg/kWp
51.5 kg/kWp
-3.0 kg/kWp for DE19R-580
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
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
132
110
22 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#7,958
vs
#9,758
DE19R-580 leads by 1,800 places
Power density
#8,194
vs
#9,622
DE19R-580 leads by 1,428 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#2,281
vs
#4,829
DE19R-580 leads by 2,548 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#6,612
vs
#8,437
DE19R-580 leads by 1,825 places
05
Open the full database
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Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19-555
One difference: module efficiency
06
Written summary
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07
Questions about this pairing
Which panel is better: Trina Solar TSM-DE19R-580 or Trina Solar TSM-DE19-550?
According to our database: Trina Solar TSM-DE19R-580 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-DE19R-580 and Trina Solar TSM-DE19-550?
Trina Solar TSM-DE19R-580 has a module efficiency of 21.50%, while Trina Solar TSM-DE19-550 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-DE19R-580 use vs Trina Solar TSM-DE19-550?
Trina Solar TSM-DE19R-580 uses PERC cells; Trina Solar TSM-DE19-550 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-DE19R-580 and Trina Solar TSM-DE19-550?
Trina Solar TSM-DE19R-580 has a 25 years power warranty; Trina Solar TSM-DE19-550 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 215 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.