AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-G650-MCH72Mw
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
A805-GRH78Dw
G650-MCH72Mw
Difference
Module efficiency
25.10 %
24.10 %
1.00 pp more efficient
Rated power
805 Wp
650 Wp
155 W more power
Power density
250.6 Wp/m²
240.6 Wp/m²
10.0 Wp/m² higher
Weight
39.8 kg
31.5 kg
8.3 kg lighter
Open-circuit voltage
59.42 V
54.40 V
5.02 V apart
Short-circuit current
17.13 A
15.12 A
2.01 A apart
Module area
3.212 m²
2.701 m²
0.511 m² apart
Cell technology
Back Contact
N-type
Back Contact vs N-type
Voltage at max power
49.46 V
45.10 V
4.36 V apart
Cell count
156
144
12 cells apart
Current at max power
16.28 A
14.42 A
1.86 A apart
Bifacial
Yes
No
Yes vs No
Dimensions
2465x1303x33 mm
2382x1134x30 mm
2465x1303x33 mm vs 2382x1134x30 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.
A805-GRH78Dw
27,009 kWh
G650-MCH72Mw
21,809 kWh
Lifetime gap
5,200 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
A805-GRH78Dw
G650-MCH72Mw
Standard test conditions
25 °C
100.0% of rated power
805 W
650 W
Cool, bright day
40 °C
96.1% of rated power
774 W
625 W
Typical summer roof
55 °C
92.2% of rated power
742 W
599 W
Hot roof
70 °C
88.3% of rated power
711 W
574 W
03
Full specification
Parameter
A805-GRH78Dw
G650-MCH72Mw
Difference
Power and efficiency
Rated power
805 Wp
650 Wp
+155 W for A805-GRH78Dw
Module efficiency
25.10 %
24.10 %
+1.00 pp for A805-GRH78Dw
Power density
250.6 Wp/m²
240.6 Wp/m²
+10.0 Wp/m² for A805-GRH78Dw
Open-circuit voltage
59.42 V
54.40 V
5.02 V apart
Voltage at max power
49.46 V
45.10 V
4.36 V apart
Short-circuit current
17.13 A
15.12 A
2.01 A apart
Current at max power
16.28 A
14.42 A
1.86 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2465x1303x33 mm
2382x1134x30 mm
2465x1303x33 mm vs 2382x1134x30 mm
Module area
3.212 m²
2.701 m²
0.511 m² apart
Weight
39.8 kg
31.5 kg
-8.3 kg for G650-MCH72Mw
Weight per kWp
49.4 kg/kWp
48.5 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
Back Contact
N-type
Back Contact vs N-type
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
144
12 cells apart
Bifacial
Yes
No
Yes vs No
04
14,129 panels
Against the whole database
Efficiency
#3
vs
#241
A805-GRH78Dw leads by 238 places
Power density
#3
vs
#255
A805-GRH78Dw leads by 252 places
Heat behaviour
#515
vs
#515
Tied - the same position in the database
Weight
#2,984
vs
#2,301
G650-MCH72Mw leads by 683 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1
vs
#880
A805-GRH78Dw leads by 879 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-A805-GRH78Dw or AIKO AIKO-G650-MCH72Mw?
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-A805-GRH78Dw and AIKO AIKO-G650-MCH72Mw?
AIKO AIKO-A805-GRH78Dw has a module efficiency of 25.10%, while AIKO AIKO-G650-MCH72Mw is 24.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A805-GRH78Dw use vs AIKO AIKO-G650-MCH72Mw?
AIKO AIKO-A805-GRH78Dw uses Back Contact cells; AIKO AIKO-G650-MCH72Mw uses N-type. 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-A805-GRH78Dw and AIKO AIKO-G650-MCH72Mw?
AIKO AIKO-A805-GRH78Dw has a 30 years power warranty; AIKO AIKO-G650-MCH72Mw 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-A805-GRH78Dw and AIKO AIKO-G650-MCH72Mw 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.