Skip to main content
TSM-DEG21C.20-665 vs AIKO-A665-MDE72Mw 3 of 19 identical Swap Change panels

Trina Solar TSM-DEG21C.20-665 vs AIKO AIKO-A665-MDE72Mw

Trina Solar TSM-DEG21C.20-665
TSM-DEG21C.20-665
665 Wp 21.40 % PERC Bifacial
Open panel page Datasheet PDF
VS
AIKO AIKO-A665-MDE72Mw
AIKO-A665-MDE72Mw
665 Wp 24.60 % Back Contact
Open panel page Datasheet PDF
The verdict

AIKO-A665-MDE72Mw leads on the differences that matter

The largest is module efficiency: 3.20 pp more efficient. 3 of 19 comparable parameters are identical.

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

What actually differs

16 of 19 parameters
Parameter TSM-DEG21C.20-665 AIKO-A665-MDE72Mw Difference
Module efficiency 21.40 % 24.60 % 3.20 pp more efficient
Temperature coefficient -0.340 %/°C -0.260 %/°C 0.080 %/°C better in heat
Power density 214.1 Wp/m² 246.2 Wp/m² 32.1 Wp/m² higher
Weight 38.3 kg 29.0 kg 9.3 kg lighter
Weight per kWp 57.6 kg/kWp 43.6 kg/kWp 14.0 kg/kWp lighter
Product warranty 12 yrs 15 yrs 3 yrs longer
Annual degradation 0.45 %/yr 0.35 %/yr 0.10 %/yr slower
Open-circuit voltage 46.10 V 54.70 V 8.60 V apart
Short-circuit current 18.50 A 15.30 A 3.20 A apart
Module area 3.106 m² 2.701 m² 0.405 m² apart
Cell technology PERC Back Contact PERC vs Back Contact
Voltage at max power 38.30 V 45.40 V 7.10 V apart
Current at max power 17.39 A 14.65 A 2.74 A apart
Cell count 132 144 12 cells apart
Bifacial Yes No Yes vs No
Dimensions 2384x1303x33 mm 2382x1134x30 mm 2384x1303x33 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
TSM-DEG21C.20-665
21,899 kWh
AIKO-A665-MDE72Mw
22,486 kWh
Lifetime gap
587 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TSM-DEG21C.20-665 AIKO-A665-MDE72Mw
Standard test conditions 25 °C 100.0% of rated power 665 W 665 W
Cool, bright day 40 °C 94.9% of rated power 631 W 639 W
Typical summer roof 55 °C 89.8% of rated power 597 W 613 W
Hot roof 70 °C 84.7% of rated power 563 W 587 W
03

Full specification

Parameter TSM-DEG21C.20-665 AIKO-A665-MDE72Mw Difference
Power and efficiency
Rated power 665 Wp 665 Wp Same
Module efficiency 21.40 % 24.60 % +3.20 pp for AIKO-A665-MDE72Mw
Power density 214.1 Wp/m² 246.2 Wp/m² +32.1 Wp/m² for AIKO-A665-MDE72Mw
Open-circuit voltage 46.10 V 54.70 V 8.60 V apart
Voltage at max power 38.30 V 45.40 V 7.10 V apart
Short-circuit current 18.50 A 15.30 A 3.20 A apart
Current at max power 17.39 A 14.65 A 2.74 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.260 %/°C +0.080 %/°C for AIKO-A665-MDE72Mw
Mechanical
Dimensions 2384x1303x33 mm 2382x1134x30 mm 2384x1303x33 mm vs 2382x1134x30 mm
Module area 3.106 m² 2.701 m² 0.405 m² apart
Weight 38.3 kg 29.0 kg -9.3 kg for AIKO-A665-MDE72Mw
Weight per kWp 57.6 kg/kWp 43.6 kg/kWp -14.0 kg/kWp for AIKO-A665-MDE72Mw
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for AIKO-A665-MDE72Mw
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.35 %/yr -0.10 %/yr for AIKO-A665-MDE72Mw
Technology
Cell technology PERC Back Contact PERC vs Back Contact
Cell type Monocrystalline Monocrystalline Same
Cell count 132 144 12 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#8,323 vs #51
AIKO-A665-MDE72Mw leads by 8,272 places
Power density
#8,250 vs #42
AIKO-A665-MDE72Mw leads by 8,208 places
Heat behaviour
#8,778 vs #511
AIKO-A665-MDE72Mw leads by 8,267 places
Weight
#11,303 vs #315
AIKO-A665-MDE72Mw leads by 10,988 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,833 vs #390
AIKO-A665-MDE72Mw leads by 2,443 places
05

More useful comparisons

Open the full database
Same series, other bin
Trina Solar TSM-DEG21C.20-665 vs Trina Solar TSM-DEG21C.20-660
One difference: module efficiency
Same series, other bin
Trina Solar TSM-DEG21C.20-665 vs Trina Solar TSM-DEG21C.20-655
3 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-DEG21C.20-665 vs Trina Solar TSM-DEG21C.20-650
3 differences, the largest is module efficiency
Same series, other bin
Trina Solar TSM-DEG21C.20-665 vs Trina Solar TSM-DEG21C.20-645
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A665-MDE72Mw vs AIKO AIKO-A680-MDE72Mw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A665-MDE72Mw vs AIKO AIKO-A675-MDE72Mw
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Trina Solar TSM-DEG21C.20-665 or AIKO AIKO-A665-MDE72Mw?
According to our database: AIKO AIKO-A665-MDE72Mw has higher module efficiency (24.60% vs 21.40%); AIKO AIKO-A665-MDE72Mw tolerates heat better (temp coeff -0.260%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Trina Solar TSM-DEG21C.20-665 and AIKO AIKO-A665-MDE72Mw?
Trina Solar TSM-DEG21C.20-665 has a module efficiency of 21.40%, while AIKO AIKO-A665-MDE72Mw is 24.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Trina Solar TSM-DEG21C.20-665 use vs AIKO AIKO-A665-MDE72Mw?
Trina Solar TSM-DEG21C.20-665 uses PERC cells; AIKO AIKO-A665-MDE72Mw uses Back Contact. 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-DEG21C.20-665 and AIKO AIKO-A665-MDE72Mw?
Trina Solar TSM-DEG21C.20-665 has a 30 years power warranty; AIKO AIKO-A665-MDE72Mw 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-DEG21C.20-665 and AIKO AIKO-A665-MDE72Mw bifacial panels?
Trina Solar TSM-DEG21C.20-665 is bifacial (captures light from both faces); AIKO AIKO-A665-MDE72Mw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Compare Trina Solar and AIKO as manufacturers Portfolio, efficiency, cell technologies and warranty terms

Shop prices: See 248 Trina Solar offers · See 180 AIKO 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.