AIKO AIKO-A615-MAH72Dw vs AIKO AIKO-A620-MAH72Dw
VS
The verdict
A620-MAH72Dw leads on the differences that matter
The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.
See the one differenceHow alike are they
18
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
1 of 19 parameters
What actually differs
Parameter
A615-MAH72Dw
A620-MAH72Dw
Difference
Module efficiency
23.80 %
24.00 %
0.20 pp more efficient
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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
A615-MAH72Dw
20,795 kWh
A620-MAH72Dw
20,964 kWh
Lifetime gap
169 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
A615-MAH72Dw
A620-MAH72Dw
Standard test conditions
25 °C
100.0% of rated power
615 W
620 W
Cool, bright day
40 °C
96.1% of rated power
591 W
596 W
Typical summer roof
55 °C
92.2% of rated power
567 W
572 W
Hot roof
70 °C
88.3% of rated power
543 W
547 W
03
Full specification
Parameter
A615-MAH72Dw
A620-MAH72Dw
Difference
Power and efficiency
Rated power
615 Wp
620 Wp
Effectively the same
Module efficiency
23.80 %
24.00 %
+0.20 pp for A620-MAH72Dw
Power density
238.1 Wp/m²
240.0 Wp/m²
Effectively the same
Open-circuit voltage
54.44 V
54.57 V
Effectively the same
Voltage at max power
45.10 V
45.20 V
Effectively the same
Short-circuit current
14.38 A
14.46 A
Effectively the same
Current at max power
13.64 A
13.72 A
Effectively the same
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2278x1134x30 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
32.5 kg
32.5 kg
Same
Weight per kWp
52.8 kg/kWp
52.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.35 %/yr
Same
Technology
Cell technology
Back Contact
Back Contact
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#462
vs
#329
A620-MAH72Dw leads by 133 places
Power density
#484
vs
#359
A620-MAH72Dw leads by 125 places
Heat behaviour
#515
vs
#515
Tied - the same position in the database
Weight
#6,602
vs
#5,938
A620-MAH72Dw leads by 664 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,646
vs
#1,463
A620-MAH72Dw leads by 183 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: AIKO AIKO-A615-MAH72Dw or AIKO AIKO-A620-MAH72Dw?
According to our database: AIKO AIKO-A620-MAH72Dw has higher module efficiency (24.00% vs 23.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-A615-MAH72Dw and AIKO AIKO-A620-MAH72Dw?
AIKO AIKO-A615-MAH72Dw has a module efficiency of 23.80%, while AIKO AIKO-A620-MAH72Dw is 24.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A615-MAH72Dw use vs AIKO AIKO-A620-MAH72Dw?
AIKO AIKO-A615-MAH72Dw uses Back Contact cells; AIKO AIKO-A620-MAH72Dw 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 AIKO AIKO-A615-MAH72Dw and AIKO AIKO-A620-MAH72Dw?
AIKO AIKO-A615-MAH72Dw has a 30 years power warranty; AIKO AIKO-A620-MAH72Dw 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 AIKO AIKO-A615-MAH72Dw and AIKO AIKO-A620-MAH72Dw bifacial panels?
Both AIKO AIKO-A615-MAH72Dw and AIKO AIKO-A620-MAH72Dw are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 137 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.