DAH Solar DHN-78X16/DG-640W vs AIKO AIKO-G640-MCH72Dw
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
DHN-78X16/DG-640W
AIKO-G640-MCH72Dw
Difference
Module efficiency
22.90 %
23.70 %
0.80 pp more efficient
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
0.030 %/°C better in heat
Power density
229.0 Wp/m²
236.9 Wp/m²
8.0 Wp/m² higher
Module area
2.795 m²
2.701 m²
0.094 m² apart
Open-circuit voltage
56.40 V
53.80 V
2.60 V apart
Cell technology
TOPCon
Back Contact
TOPCon vs Back Contact
Cell count
156
144
12 cells apart
Voltage at max power
47.60 V
45.10 V
2.50 V apart
Short-circuit current
14.32 A
14.94 A
0.62 A apart
Dimensions
2465x1134x34 mm
2382x1134x30 mm
2465x1134x34 mm vs 2382x1134x30 mm
Current at max power
13.45 A
14.20 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
DHN-78X16/DG-640W
21,473 kWh
AIKO-G640-MCH72Dw
21,473 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
DHN-78X16/DG-640W
AIKO-G640-MCH72Dw
Standard test conditions
25 °C
100.0% of rated power
640 W
640 W
Cool, bright day
40 °C
95.7% of rated power
612 W
615 W
Typical summer roof
55 °C
91.3% of rated power
584 W
590 W
Hot roof
70 °C
87.0% of rated power
556 W
565 W
03
Full specification
Parameter
DHN-78X16/DG-640W
AIKO-G640-MCH72Dw
Difference
Power and efficiency
Rated power
640 Wp
640 Wp
Same
Module efficiency
22.90 %
23.70 %
+0.80 pp for AIKO-G640-MCH72Dw
Power density
229.0 Wp/m²
236.9 Wp/m²
+8.0 Wp/m² for AIKO-G640-MCH72Dw
Open-circuit voltage
56.40 V
53.80 V
2.60 V apart
Voltage at max power
47.60 V
45.10 V
2.50 V apart
Short-circuit current
14.32 A
14.94 A
0.62 A apart
Current at max power
13.45 A
14.20 A
0.75 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
+0.030 %/°C for AIKO-G640-MCH72Dw
Mechanical
Dimensions
2465x1134x34 mm
2382x1134x30 mm
2465x1134x34 mm vs 2382x1134x30 mm
Module area
2.795 m²
2.701 m²
0.094 m² apart
Weight
34.2 kg
33.5 kg
Effectively the same
Weight per kWp
53.4 kg/kWp
52.3 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
TOPCon
Back Contact
TOPCon vs Back Contact
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
144
12 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#2,359
vs
#517
AIKO-G640-MCH72Dw leads by 1,842 places
Power density
#2,389
vs
#521
AIKO-G640-MCH72Dw leads by 1,868 places
Heat behaviour
#2,165
vs
#511
AIKO-G640-MCH72Dw leads by 1,654 places
Weight
#7,363
vs
#5,829
AIKO-G640-MCH72Dw leads by 1,534 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,704
vs
#1,271
AIKO-G640-MCH72Dw leads by 433 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: DAH Solar DHN-78X16/DG-640W or AIKO AIKO-G640-MCH72Dw?
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 DAH Solar DHN-78X16/DG-640W and AIKO AIKO-G640-MCH72Dw?
DAH Solar DHN-78X16/DG-640 W has a module efficiency of 22.90%, while AIKO AIKO-G640-MCH72Dw is 23.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DAH Solar DHN-78X16/DG-640W use vs AIKO AIKO-G640-MCH72Dw?
DAH Solar DHN-78X16/DG-640 W uses TOPCon cells; AIKO AIKO-G640-MCH72Dw 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 DAH Solar DHN-78X16/DG-640W and AIKO AIKO-G640-MCH72Dw?
DAH Solar DHN-78X16/DG-640 W has a 30 years power warranty; AIKO AIKO-G640-MCH72Dw 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 DAH Solar DHN-78X16/DG-640W and AIKO AIKO-G640-MCH72Dw bifacial panels?
Both DAH Solar DHN-78X16/DG-640 W and AIKO AIKO-G640-MCH72Dw 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 12 DAH Solar offers · See 171 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.