AIKO AIKO-G640-MCH72Dw vs DAH Solar DHN-78X16/DG-640W
VS
The verdict
AIKO-G640-MCH72Dw leads on the differences that matter
The largest is module efficiency: 0.80 pp more efficient. 7 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 11 differencesHow alike are they
7
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
11 of 18 parameters
What actually differs
Parameter
AIKO-G640-MCH72Dw
DHN-78X16/DG-640W
Difference
Module efficiency
23.70 %
22.90 %
0.80 pp more efficient
Temperature coefficient
-0.260 %/°C
-0.290 %/°C
0.030 %/°C better in heat
Power density
236.9 Wp/m²
229.0 Wp/m²
8.0 Wp/m² higher
Module area
2.701 m²
2.795 m²
0.094 m² apart
Open-circuit voltage
53.80 V
56.40 V
2.60 V apart
Cell technology
Back Contact
TOPCon
Back Contact vs TOPCon
Cell count
144
156
12 cells apart
Voltage at max power
45.10 V
47.60 V
2.50 V apart
Short-circuit current
14.94 A
14.32 A
0.62 A apart
Dimensions
2382x1134x30 mm
2465x1134x34 mm
2382x1134x30 mm vs 2465x1134x34 mm
Current at max power
14.20 A
13.45 A
0.75 A apart
02
What it means on a roof
Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
AIKO-G640-MCH72Dw
21,473 kWh
DHN-78X16/DG-640W
21,473 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
AIKO-G640-MCH72Dw
DHN-78X16/DG-640W
Standard test conditions
25 °C
100.0% of rated power
640 W
640 W
Cool, bright day
40 °C
95.7% of rated power
615 W
612 W
Typical summer roof
55 °C
91.3% of rated power
590 W
584 W
Hot roof
70 °C
87.0% of rated power
565 W
556 W
03
Full specification
Parameter
AIKO-G640-MCH72Dw
DHN-78X16/DG-640W
Difference
Power and efficiency
Rated power
640 Wp
640 Wp
Same
Module efficiency
23.70 %
22.90 %
+0.80 pp for AIKO-G640-MCH72Dw
Power density
236.9 Wp/m²
229.0 Wp/m²
+8.0 Wp/m² for AIKO-G640-MCH72Dw
Open-circuit voltage
53.80 V
56.40 V
2.60 V apart
Voltage at max power
45.10 V
47.60 V
2.50 V apart
Short-circuit current
14.94 A
14.32 A
0.62 A apart
Current at max power
14.20 A
13.45 A
0.75 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.290 %/°C
+0.030 %/°C for AIKO-G640-MCH72Dw
Mechanical
Dimensions
2382x1134x30 mm
2465x1134x34 mm
2382x1134x30 mm vs 2465x1134x34 mm
Module area
2.701 m²
2.795 m²
0.094 m² apart
Weight
33.5 kg
34.2 kg
Effectively the same
Weight per kWp
52.3 kg/kWp
53.4 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
-
Not published by DAH Solar
Technology
Cell technology
Back Contact
TOPCon
Back Contact vs TOPCon
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
156
12 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#517
vs
#2,359
AIKO-G640-MCH72Dw leads by 1,842 places
Power density
#521
vs
#2,389
AIKO-G640-MCH72Dw leads by 1,868 places
Heat behaviour
#511
vs
#2,165
AIKO-G640-MCH72Dw leads by 1,654 places
Weight
#5,829
vs
#7,363
AIKO-G640-MCH72Dw leads by 1,534 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,271
vs
#1,704
AIKO-G640-MCH72Dw leads by 433 places
05
Open the full database
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One difference: module efficiency
Same series, other bin
DAH Solar
DAH Solar DHN-78X16/DG-640W vs DAH Solar DHN-78X16/DG-635W
The same specification on paper
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: AIKO AIKO-G640-MCH72Dw or DAH Solar DHN-78X16/DG-640W?
According to our database: AIKO AIKO-G640-MCH72Dw has higher module efficiency (23.70% vs 22.90%); AIKO AIKO-G640-MCH72Dw 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 AIKO AIKO-G640-MCH72Dw and DAH Solar DHN-78X16/DG-640W?
AIKO AIKO-G640-MCH72Dw has a module efficiency of 23.70%, while DAH Solar DHN-78X16/DG-640 W is 22.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-G640-MCH72Dw use vs DAH Solar DHN-78X16/DG-640W?
AIKO AIKO-G640-MCH72Dw uses Back Contact cells; DAH Solar DHN-78X16/DG-640 W uses TOPCon. 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-G640-MCH72Dw and DAH Solar DHN-78X16/DG-640W?
AIKO AIKO-G640-MCH72Dw has a 30 years power warranty; DAH Solar DHN-78X16/DG-640 W 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-G640-MCH72Dw and DAH Solar DHN-78X16/DG-640W bifacial panels?
Both AIKO AIKO-G640-MCH72Dw and DAH Solar DHN-78X16/DG-640 W 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 174 AIKO offers · See 11 DAH 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.