AIKO AIKO-A445-MAH54Mb vs AIKO AIKO-A805-GRH78Dw
VS
The verdict
A805-GRH78Dw leads on the differences that matter
The largest is module efficiency: 2.30 pp more efficient. 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
A445-MAH54Mb
A805-GRH78Dw
Difference
Module efficiency
22.80 %
25.10 %
2.30 pp more efficient
Rated power
445 Wp
805 Wp
360 W more power
Power density
227.9 Wp/m²
250.6 Wp/m²
22.7 Wp/m² higher
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
0.030 %/°C better in heat
Weight
20.5 kg
39.8 kg
19.3 kg lighter
Open-circuit voltage
40.09 V
59.42 V
19.33 V apart
Short-circuit current
13.69 A
17.13 A
3.44 A apart
Module area
1.953 m²
3.212 m²
1.259 m² apart
Weight per kWp
46.1 kg/kWp
49.4 kg/kWp
3.4 kg/kWp lighter
Voltage at max power
33.91 V
49.46 V
15.55 V apart
Current at max power
13.13 A
16.28 A
3.15 A apart
Cell count
108
156
48 cells apart
Bifacial
No
Yes
No vs Yes
Dimensions
1722x1134x30 mm
2465x1303x33 mm
1722x1134x30 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
A445-MAH54Mb
14,931 kWh
A805-GRH78Dw
27,009 kWh
Lifetime gap
12,078 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
A445-MAH54Mb
A805-GRH78Dw
Standard test conditions
25 °C
100.0% of rated power
445 W
805 W
Cool, bright day
40 °C
95.7% of rated power
426 W
774 W
Typical summer roof
55 °C
91.3% of rated power
406 W
742 W
Hot roof
70 °C
87.0% of rated power
387 W
711 W
03
Full specification
Parameter
A445-MAH54Mb
A805-GRH78Dw
Difference
Power and efficiency
Rated power
445 Wp
805 Wp
+360 W for A805-GRH78Dw
Module efficiency
22.80 %
25.10 %
+2.30 pp for A805-GRH78Dw
Power density
227.9 Wp/m²
250.6 Wp/m²
+22.7 Wp/m² for A805-GRH78Dw
Open-circuit voltage
40.09 V
59.42 V
19.33 V apart
Voltage at max power
33.91 V
49.46 V
15.55 V apart
Short-circuit current
13.69 A
17.13 A
3.44 A apart
Current at max power
13.13 A
16.28 A
3.15 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.260 %/°C
+0.030 %/°C for A805-GRH78Dw
Mechanical
Dimensions
1722x1134x30 mm
2465x1303x33 mm
1722x1134x30 mm vs 2465x1303x33 mm
Module area
1.953 m²
3.212 m²
1.259 m² apart
Weight
20.5 kg
39.8 kg
-19.3 kg for A445-MAH54Mb
Weight per kWp
46.1 kg/kWp
49.4 kg/kWp
-3.4 kg/kWp for A445-MAH54Mb
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
Back Contact
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
156
48 cells apart
Bifacial
No
Yes
No vs Yes
04
14,005 panels
Against the whole database
Efficiency
#2,714
vs
#3
A805-GRH78Dw leads by 2,711 places
Power density
#2,790
vs
#3
A805-GRH78Dw leads by 2,787 places
Heat behaviour
#2,165
vs
#511
A805-GRH78Dw leads by 1,654 places
Weight
#972
vs
#2,977
A445-MAH54Mb leads by 2,005 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,114
vs
#1
A805-GRH78Dw leads by 8,113 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-A445-MAH54Mb or AIKO AIKO-A805-GRH78Dw?
According to our database: AIKO AIKO-A805-GRH78Dw has higher module efficiency (25.10% vs 22.80%); AIKO AIKO-A805-GRH78Dw 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-A445-MAH54Mb and AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-A445-MAH54Mb has a module efficiency of 22.80%, 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-A445-MAH54Mb use vs AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-A445-MAH54Mb uses Back Contact 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-A445-MAH54Mb and AIKO AIKO-A805-GRH78Dw?
AIKO AIKO-A445-MAH54Mb 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-A445-MAH54Mb and AIKO AIKO-A805-GRH78Dw bifacial panels?
AIKO AIKO-A805-GRH78Dw is bifacial (captures light from both faces); AIKO AIKO-A445-MAH54Mb is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: 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.