AIKO AIKO-A785-GRH78Dw vs MY Solar MS740N-HJTGB
VS
The verdict
14 differences, and they point both ways
The largest is rated power: 45 W more power. 4 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 14 differencesHow alike are they
4
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
14 of 18 parameters
What actually differs
Parameter
AIKO-A785-GRH78Dw
MS740N-HJTGB
Difference
Rated power
785 Wp
740 Wp
45 W more power
Module efficiency
24.40 %
23.82 %
0.58 pp more efficient
Product warranty
15 yrs
30 yrs
15 yrs longer
Temperature coefficient
-0.260 %/°C
-0.240 %/°C
0.020 %/°C better in heat
Power density
244.4 Wp/m²
238.2 Wp/m²
6.2 Wp/m² higher
Open-circuit voltage
59.02 V
51.35 V
7.67 V apart
Module area
3.212 m²
3.106 m²
0.106 m² apart
Cell technology
Back Contact
HJT
Back Contact vs HJT
Weight
39.8 kg
38.3 kg
1.5 kg lighter
Short-circuit current
16.85 A
17.95 A
1.10 A apart
Voltage at max power
49.07 V
43.25 V
5.82 V apart
Cell count
156
132
24 cells apart
Current at max power
16.00 A
17.13 A
1.13 A apart
Dimensions
2465x1303x33 mm
2384x1303x35 mm
2465x1303x33 mm vs 2384x1303x35 mm
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-A785-GRH78Dw
26,338 kWh
MS740N-HJTGB
24,828 kWh
Lifetime gap
1,510 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
AIKO-A785-GRH78Dw
MS740N-HJTGB
Standard test conditions
25 °C
100.0% of rated power
785 W
740 W
Cool, bright day
40 °C
96.1% of rated power
754 W
713 W
Typical summer roof
55 °C
92.2% of rated power
724 W
687 W
Hot roof
70 °C
88.3% of rated power
693 W
660 W
03
Full specification
Parameter
AIKO-A785-GRH78Dw
MS740N-HJTGB
Difference
Power and efficiency
Rated power
785 Wp
740 Wp
+45 W for AIKO-A785-GRH78Dw
Module efficiency
24.40 %
23.82 %
+0.58 pp for AIKO-A785-GRH78Dw
Power density
244.4 Wp/m²
238.2 Wp/m²
+6.2 Wp/m² for AIKO-A785-GRH78Dw
Open-circuit voltage
59.02 V
51.35 V
7.67 V apart
Voltage at max power
49.07 V
43.25 V
5.82 V apart
Short-circuit current
16.85 A
17.95 A
1.10 A apart
Current at max power
16.00 A
17.13 A
1.13 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.240 %/°C
+0.020 %/°C for MS740N-HJTGB
Mechanical
Dimensions
2465x1303x33 mm
2384x1303x35 mm
2465x1303x33 mm vs 2384x1303x35 mm
Module area
3.212 m²
3.106 m²
0.106 m² apart
Weight
39.8 kg
38.3 kg
-1.5 kg for MS740N-HJTGB
Weight per kWp
50.7 kg/kWp
51.8 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
30 yrs
+15 yrs for MS740N-HJTGB
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
-
-
Neither datasheet publishes this
Technology
Cell technology
Back Contact
HJT
Back Contact vs HJT
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
132
24 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#99
vs
#418
AIKO-A785-GRH78Dw leads by 319 places
Power density
#87
vs
#431
AIKO-A785-GRH78Dw leads by 344 places
Heat behaviour
#511
vs
#13
MS740N-HJTGB leads by 498 places
Weight
#4,120
vs
#5,125
AIKO-A785-GRH78Dw leads by 1,005 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#10
vs
#3
MS740N-HJTGB leads by 7 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: AIKO AIKO-A785-GRH78Dw or MY Solar MS740N-HJTGB?
According to our database: AIKO AIKO-A785-GRH78Dw has higher module efficiency (24.40% vs 23.82%); MY Solar MS740N-HJTGB tolerates heat better (temp coeff -0.240%/°C vs -0.260%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-A785-GRH78Dw and MY Solar MS740N-HJTGB?
AIKO AIKO-A785-GRH78Dw has a module efficiency of 24.40%, while MY Solar MS740N-HJTGB is 23.82%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A785-GRH78Dw use vs MY Solar MS740N-HJTGB?
AIKO AIKO-A785-GRH78Dw uses Back Contact cells; MY Solar MS740N-HJTGB uses HJT. 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-A785-GRH78Dw and MY Solar MS740N-HJTGB?
AIKO AIKO-A785-GRH78Dw has a 30 years power warranty; MY Solar MS740N-HJTGB 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-A785-GRH78Dw and MY Solar MS740N-HJTGB bifacial panels?
Both AIKO AIKO-A785-GRH78Dw and MY Solar MS740N-HJTGB 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
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.