AIKO AIKO-G650-MCH72Mw vs AIKO AIKO-A805-GRH78Dw
VS
The verdict
A805-GRH78Dw leads on the differences that matter
The largest is module efficiency: 1.00 pp more efficient. 5 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 13 differencesHow alike are they
5
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
13 of 18 parameters
What actually differs
Parameter
G650-MCH72Mw
A805-GRH78Dw
Difference
Module efficiency
24.10 %
25.10 %
1.00 pp more efficient
Rated power
650 Wp
805 Wp
155 W more power
Power density
240.6 Wp/m²
250.6 Wp/m²
10.0 Wp/m² higher
Weight
31.5 kg
39.8 kg
8.3 kg lighter
Open-circuit voltage
54.40 V
59.42 V
5.02 V apart
Short-circuit current
15.12 A
17.13 A
2.01 A apart
Module area
2.701 m²
3.212 m²
0.511 m² apart
Cell technology
N-type
Back Contact
N-type vs Back Contact
Voltage at max power
45.10 V
49.46 V
4.36 V apart
Cell count
144
156
12 cells apart
Current at max power
14.42 A
16.28 A
1.86 A apart
Bifacial
No
Yes
No vs Yes
Dimensions
2382x1134x30 mm
2465x1303x33 mm
2382x1134x30 mm vs 2465x1303x33 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
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.
G650-MCH72Mw
21,809 kWh
A805-GRH78Dw
27,009 kWh
Lifetime gap
5,200 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
G650-MCH72Mw
A805-GRH78Dw
Standard test conditions
25 °C
100.0% of rated power
650 W
805 W
Cool, bright day
40 °C
96.1% of rated power
625 W
774 W
Typical summer roof
55 °C
92.2% of rated power
599 W
742 W
Hot roof
70 °C
88.3% of rated power
574 W
711 W
03
Full specification
Parameter
G650-MCH72Mw
A805-GRH78Dw
Difference
Power and efficiency
Rated power
650 Wp
805 Wp
+155 W for A805-GRH78Dw
Module efficiency
24.10 %
25.10 %
+1.00 pp for A805-GRH78Dw
Power density
240.6 Wp/m²
250.6 Wp/m²
+10.0 Wp/m² for A805-GRH78Dw
Open-circuit voltage
54.40 V
59.42 V
5.02 V apart
Voltage at max power
45.10 V
49.46 V
4.36 V apart
Short-circuit current
15.12 A
17.13 A
2.01 A apart
Current at max power
14.42 A
16.28 A
1.86 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2465x1303x33 mm
2382x1134x30 mm vs 2465x1303x33 mm
Module area
2.701 m²
3.212 m²
0.511 m² apart
Weight
31.5 kg
39.8 kg
-8.3 kg for G650-MCH72Mw
Weight per kWp
48.5 kg/kWp
49.4 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 AIKO
Technology
Cell technology
N-type
Back Contact
N-type vs Back Contact
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
156
12 cells apart
Bifacial
No
Yes
No vs Yes
04
14,129 panels
Against the whole database
Efficiency
#241
vs
#3
A805-GRH78Dw leads by 238 places
Power density
#255
vs
#3
A805-GRH78Dw leads by 252 places
Heat behaviour
#515
vs
#515
Tied - the same position in the database
Weight
#2,301
vs
#2,984
G650-MCH72Mw leads by 683 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#880
vs
#1
A805-GRH78Dw leads by 879 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-G650-MCH72Mw or AIKO AIKO-A805-GRH78Dw?
According to our database: AIKO AIKO-A805-GRH78Dw has higher module efficiency (25.10% vs 24.10%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-G650-MCH72Mw and AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-G650-MCH72Mw has a module efficiency of 24.10%, while AIKO AIKO-A805-GRH78Dw is 25.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-G650-MCH72Mw use vs AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-G650-MCH72Mw uses N-type cells; AIKO AIKO-A805-GRH78Dw 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-G650-MCH72Mw and AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-G650-MCH72Mw has a 30 years power warranty; AIKO AIKO-A805-GRH78Dw 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-G650-MCH72Mw and AIKO AIKO-A805-GRH78Dw bifacial panels?
AIKO AIKO-A805-GRH78Dw is bifacial (captures light from both faces); AIKO AIKO-G650-MCH72Mw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
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.