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DE19-550 vs DE19R-580 8 of 19 identical Swap Change panels

Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19R-580

Trina Solar TSM-DE19-550
TSM-DE19-550
550 Wp 21.00 % PERC
Open panel page Datasheet PDF
VS
Trina Solar TSM-DE19R-580
TSM-DE19R-580
580 Wp 21.50 % PERC
Open panel page Datasheet PDF
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 differences
How alike are they
8 of 19 comparable
parameters are identical
identical differs
01

What actually differs

11 of 19 parameters
Parameter DE19-550 DE19R-580 Difference
Module efficiency 21.00 % 21.50 % 0.50 pp more efficient
Rated power 550 Wp 580 Wp 30 W more power
Open-circuit voltage 37.90 V 46.30 V 8.40 V apart
Short-circuit current 18.52 A 15.94 A 2.58 A apart
Module area 2.613 m² 2.701 m² 0.088 m² apart
Power density 210.5 Wp/m² 214.7 Wp/m² 4.2 Wp/m² higher
Weight per kWp 51.5 kg/kWp 48.4 kg/kWp 3.0 kg/kWp lighter
Voltage at max power 31.60 V 39.00 V 7.40 V apart
Current at max power 17.40 A 14.86 A 2.54 A apart
Cell count 110 132 22 cells apart
Dimensions 2384x1096x30 mm 2382x1134x30 mm 2384x1096x30 mm vs 2382x1134x30 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.
DE19-550
17,825 kWh
DE19R-580
18,797 kWh
Lifetime gap
972 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario DE19-550 DE19R-580
Standard test conditions 25 °C 100.0% of rated power 550 W 580 W
Cool, bright day 40 °C 94.9% of rated power 522 W 550 W
Typical summer roof 55 °C 89.8% of rated power 494 W 521 W
Hot roof 70 °C 84.7% of rated power 466 W 491 W
03

Full specification

Parameter DE19-550 DE19R-580 Difference
Power and efficiency
Rated power 550 Wp 580 Wp +30 W for DE19R-580
Module efficiency 21.00 % 21.50 % +0.50 pp for DE19R-580
Power density 210.5 Wp/m² 214.7 Wp/m² +4.2 Wp/m² for DE19R-580
Open-circuit voltage 37.90 V 46.30 V 8.40 V apart
Voltage at max power 31.60 V 39.00 V 7.40 V apart
Short-circuit current 18.52 A 15.94 A 2.58 A apart
Current at max power 17.40 A 14.86 A 2.54 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.340 %/°C Same
Mechanical
Dimensions 2384x1096x30 mm 2382x1134x30 mm 2384x1096x30 mm vs 2382x1134x30 mm
Module area 2.613 m² 2.701 m² 0.088 m² apart
Weight 28.3 kg 28.1 kg Effectively the same
Weight per kWp 51.5 kg/kWp 48.4 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 110 132 22 cells apart
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#9,758 vs #7,958
DE19R-580 leads by 1,800 places
Power density
#9,622 vs #8,194
DE19R-580 leads by 1,428 places
Heat behaviour
#8,778 vs #8,778
Tied - the same position in the database
Weight
#4,829 vs #2,281
DE19R-580 leads by 2,548 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#8,437 vs #6,612
DE19R-580 leads by 1,825 places
05

More useful comparisons

Open the full database
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19R-585
11 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19R-575
10 differences, the largest is rated power
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19R-570
9 differences, the largest is rated power
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19R-565
8 differences, the largest is open-circuit voltage
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19-560
3 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-DE19-550 vs Trina Solar TSM-DE19-555
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Trina Solar TSM-DE19-550 or Trina Solar TSM-DE19R-580?
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-DE19-550 and Trina Solar TSM-DE19R-580?
Trina Solar TSM-DE19-550 has a module efficiency of 21.00%, while Trina Solar TSM-DE19R-580 is 21.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-DE19-550 use vs Trina Solar TSM-DE19R-580?
Trina Solar TSM-DE19-550 uses PERC cells; Trina Solar TSM-DE19R-580 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-DE19-550 and Trina Solar TSM-DE19R-580?
Trina Solar TSM-DE19-550 has a 25 years power warranty; Trina Solar TSM-DE19R-580 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 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.