AIKO AIKO-A800-GRH78Dw vs AIKO AIKO-A475-MCE54Mb
VS
The verdict
A800-GRH78Dw leads on the differences that matter
The largest is module efficiency: 1.10 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
A800-GRH78Dw
A475-MCE54Mb
Difference
Module efficiency
24.90 %
23.80 %
1.10 pp more efficient
Rated power
800 Wp
475 Wp
325 W more power
Power density
249.1 Wp/m²
237.7 Wp/m²
11.3 Wp/m² higher
Weight
39.8 kg
21.0 kg
18.8 kg lighter
Product warranty
15 yrs
25 yrs
10 yrs longer
Weight per kWp
49.7 kg/kWp
44.2 kg/kWp
5.5 kg/kWp lighter
Open-circuit voltage
59.32 V
40.70 V
18.62 V apart
Short-circuit current
17.06 A
14.76 A
2.30 A apart
Module area
3.212 m²
1.998 m²
1.214 m² apart
Voltage at max power
49.36 V
34.10 V
15.26 V apart
Current at max power
16.21 A
13.94 A
2.27 A apart
Cell count
156
108
48 cells apart
Bifacial
Yes
No
Yes vs No
Dimensions
2465x1303x33 mm
1762x1134x30 mm
2465x1303x33 mm vs 1762x1134x30 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.
A800-GRH78Dw
26,842 kWh
A475-MCE54Mb
15,937 kWh
Lifetime gap
10,905 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
A800-GRH78Dw
A475-MCE54Mb
Standard test conditions
25 °C
100.0% of rated power
800 W
475 W
Cool, bright day
40 °C
96.1% of rated power
769 W
456 W
Typical summer roof
55 °C
92.2% of rated power
738 W
438 W
Hot roof
70 °C
88.3% of rated power
706 W
419 W
03
Full specification
Parameter
A800-GRH78Dw
A475-MCE54Mb
Difference
Power and efficiency
Rated power
800 Wp
475 Wp
+325 W for A800-GRH78Dw
Module efficiency
24.90 %
23.80 %
+1.10 pp for A800-GRH78Dw
Power density
249.1 Wp/m²
237.7 Wp/m²
+11.3 Wp/m² for A800-GRH78Dw
Open-circuit voltage
59.32 V
40.70 V
18.62 V apart
Voltage at max power
49.36 V
34.10 V
15.26 V apart
Short-circuit current
17.06 A
14.76 A
2.30 A apart
Current at max power
16.21 A
13.94 A
2.27 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2465x1303x33 mm
1762x1134x30 mm
2465x1303x33 mm vs 1762x1134x30 mm
Module area
3.212 m²
1.998 m²
1.214 m² apart
Weight
39.8 kg
21.0 kg
-18.8 kg for A475-MCE54Mb
Weight per kWp
49.7 kg/kWp
44.2 kg/kWp
-5.5 kg/kWp for A475-MCE54Mb
Warranty and degradation
Product warranty
15 yrs
25 yrs
+10 yrs for A475-MCE54Mb
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
156
108
48 cells apart
Bifacial
Yes
No
Yes vs No
04
14,005 panels
Against the whole database
Efficiency
#10
vs
#433
A800-GRH78Dw leads by 423 places
Power density
#10
vs
#467
A800-GRH78Dw leads by 457 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#3,214
vs
#396
A475-MCE54Mb leads by 2,818 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2
vs
#3,715
A800-GRH78Dw leads by 3,713 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-A800-GRH78Dw or AIKO AIKO-A475-MCE54Mb?
According to our database: AIKO AIKO-A800-GRH78Dw has higher module efficiency (24.90% vs 23.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-A800-GRH78Dw and AIKO AIKO-A475-MCE54Mb?
AIKO AIKO-A800-GRH78Dw has a module efficiency of 24.90%, while AIKO AIKO-A475-MCE54Mb is 23.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A800-GRH78Dw use vs AIKO AIKO-A475-MCE54Mb?
AIKO AIKO-A800-GRH78Dw uses Back Contact cells; AIKO AIKO-A475-MCE54Mb 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-A800-GRH78Dw and AIKO AIKO-A475-MCE54Mb?
AIKO AIKO-A800-GRH78Dw has a 30 years power warranty; AIKO AIKO-A475-MCE54Mb 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-A800-GRH78Dw and AIKO AIKO-A475-MCE54Mb bifacial panels?
AIKO AIKO-A800-GRH78Dw is bifacial (captures light from both faces); AIKO AIKO-A475-MCE54Mb is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 181 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.