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JAM72D40-610/LB vs AIKO-A665-MDE72Dw 4 of 19 identical Swap Change panels

JA Solar JAM72D40-610/LB vs AIKO AIKO-A665-MDE72Dw

JA Solar JAM72D40-610/LB
JAM72D40-610/LB
610 Wp 23.10 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
AIKO AIKO-A665-MDE72Dw
AIKO-A665-MDE72Dw
665 Wp 24.60 % Back Contact
Open panel page Datasheet PDF
The verdict

AIKO-A665-MDE72Dw leads on the differences that matter

The largest is module efficiency: 1.50 pp more efficient. 4 of 19 comparable parameters are identical.

See all 15 differences
How alike are they
4 of 19 comparable
parameters are identical
identical differs
01

What actually differs

15 of 19 parameters
Parameter JAM72D40-610/LB AIKO-A665-MDE72Dw Difference
Module efficiency 23.10 % 24.60 % 1.50 pp more efficient
Rated power 610 Wp 665 Wp 55 W more power
Power density 230.6 Wp/m² 246.2 Wp/m² 15.6 Wp/m² higher
Temperature coefficient -0.290 %/°C -0.260 %/°C 0.030 %/°C better in heat
Product warranty 12 yrs 15 yrs 3 yrs longer
Module area 2.646 m² 2.701 m² 0.056 m² apart
Weight per kWp 53.3 kg/kWp 49.6 kg/kWp 3.7 kg/kWp lighter
Cell technology TOPCon Back Contact TOPCon vs Back Contact
Annual degradation 0.40 %/yr 0.35 %/yr 0.05 %/yr slower
Open-circuit voltage 52.80 V 54.40 V 1.60 V apart
Bifacial Yes No Yes vs No
Short-circuit current 14.57 A 15.24 A 0.67 A apart
Dimensions 2333x1134x30 mm 2382x1134x30 mm 2333x1134x30 mm vs 2382x1134x30 mm
Current at max power 13.83 A 14.59 A 0.76 A apart
Voltage at max power 44.11 V 45.60 V 1.49 V apart
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
JAM72D40-610/LB
20,467 kWh
AIKO-A665-MDE72Dw
22,486 kWh
Lifetime gap
2,019 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JAM72D40-610/LB AIKO-A665-MDE72Dw
Standard test conditions 25 °C 100.0% of rated power 610 W 665 W
Cool, bright day 40 °C 95.7% of rated power 583 W 639 W
Typical summer roof 55 °C 91.3% of rated power 557 W 613 W
Hot roof 70 °C 87.0% of rated power 530 W 587 W
03

Full specification

Parameter JAM72D40-610/LB AIKO-A665-MDE72Dw Difference
Power and efficiency
Rated power 610 Wp 665 Wp +55 W for AIKO-A665-MDE72Dw
Module efficiency 23.10 % 24.60 % +1.50 pp for AIKO-A665-MDE72Dw
Power density 230.6 Wp/m² 246.2 Wp/m² +15.6 Wp/m² for AIKO-A665-MDE72Dw
Open-circuit voltage 52.80 V 54.40 V 1.60 V apart
Voltage at max power 44.11 V 45.60 V 1.49 V apart
Short-circuit current 14.57 A 15.24 A 0.67 A apart
Current at max power 13.83 A 14.59 A 0.76 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.260 %/°C +0.030 %/°C for AIKO-A665-MDE72Dw
Mechanical
Dimensions 2333x1134x30 mm 2382x1134x30 mm 2333x1134x30 mm vs 2382x1134x30 mm
Module area 2.646 m² 2.701 m² 0.056 m² apart
Weight 32.5 kg 33.0 kg Effectively the same
Weight per kWp 53.3 kg/kWp 49.6 kg/kWp -3.7 kg/kWp for AIKO-A665-MDE72Dw
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for AIKO-A665-MDE72Dw
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.35 %/yr -0.05 %/yr for AIKO-A665-MDE72Dw
Technology
Cell technology TOPCon Back Contact TOPCon vs Back Contact
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#1,570 vs #51
AIKO-A665-MDE72Dw leads by 1,519 places
Power density
#1,689 vs #42
AIKO-A665-MDE72Dw leads by 1,647 places
Heat behaviour
#2,165 vs #511
AIKO-A665-MDE72Dw leads by 1,654 places
Weight
#7,135 vs #3,172
AIKO-A665-MDE72Dw leads by 3,963 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,742 vs #414
AIKO-A665-MDE72Dw leads by 2,328 places
05

More useful comparisons

Open the full database
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-650/LB
7 differences, the largest is rated power
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-645/LB
6 differences, the largest is rated power
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-640/LB
7 differences, the largest is rated power
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-635/LB
8 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-630/LB
8 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-625/LB
8 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: JA Solar JAM72D40-610/LB or AIKO AIKO-A665-MDE72Dw?
According to our database: AIKO AIKO-A665-MDE72Dw has higher module efficiency (24.60% vs 23.10%); AIKO AIKO-A665-MDE72Dw tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar JAM72D40-610/LB and AIKO AIKO-A665-MDE72Dw?
JA Solar JAM72D40-610/LB has a module efficiency of 23.10%, while AIKO AIKO-A665-MDE72Dw is 24.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAM72D40-610/LB use vs AIKO AIKO-A665-MDE72Dw?
JA Solar JAM72D40-610/LB uses TOPCon cells; AIKO AIKO-A665-MDE72Dw 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 JA Solar JAM72D40-610/LB and AIKO AIKO-A665-MDE72Dw?
JA Solar JAM72D40-610/LB has a 30 years power warranty; AIKO AIKO-A665-MDE72Dw 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 JA Solar JAM72D40-610/LB and AIKO AIKO-A665-MDE72Dw bifacial panels?
JA Solar JAM72D40-610/LB is bifacial (captures light from both faces); AIKO AIKO-A665-MDE72Dw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Compare JA Solar and AIKO as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.