AIKO M550M-144 vs AIKO AIKO-A800-GRH78Dw
VS
The verdict
AIKO-A800-GRH78Dw leads on the differences that matter
The largest is module efficiency: 3.60 pp more efficient. 1 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 17 differencesHow alike are they
1
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
17 of 18 parameters
What actually differs
Parameter
M550M-144
AIKO-A800-GRH78Dw
Difference
Module efficiency
21.30 %
24.90 %
3.60 pp more efficient
Temperature coefficient
-0.360 %/°C
-0.260 %/°C
0.100 %/°C better in heat
Rated power
550 Wp
800 Wp
250 W more power
Power density
212.8 Wp/m²
249.1 Wp/m²
36.3 Wp/m² higher
Performance warranty
25 yrs
30 yrs
5 yrs longer
Weight
29.0 kg
39.8 kg
10.8 kg lighter
Product warranty
12 yrs
15 yrs
3 yrs longer
Open-circuit voltage
49.90 V
59.32 V
9.42 V apart
Short-circuit current
13.80 A
17.06 A
3.26 A apart
Module area
2.584 m²
3.212 m²
0.628 m² apart
Cell technology
PERC
Back Contact
PERC vs Back Contact
Weight per kWp
52.7 kg/kWp
49.7 kg/kWp
3.0 kg/kWp lighter
Voltage at max power
42.10 V
49.36 V
7.26 V apart
Current at max power
13.07 A
16.21 A
3.14 A apart
Cell count
144
156
12 cells apart
Bifacial
No
Yes
No vs Yes
Dimensions
2279x1134x35 mm
2465x1303x33 mm
2279x1134x35 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
M550M-144
18,454 kWh
AIKO-A800-GRH78Dw
26,842 kWh
Lifetime gap
8,388 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
M550M-144
AIKO-A800-GRH78Dw
Standard test conditions
25 °C
100.0% of rated power
550 W
800 W
Cool, bright day
40 °C
94.6% of rated power
520 W
769 W
Typical summer roof
55 °C
89.2% of rated power
491 W
738 W
Hot roof
70 °C
83.8% of rated power
461 W
706 W
03
Full specification
Parameter
M550M-144
AIKO-A800-GRH78Dw
Difference
Power and efficiency
Rated power
550 Wp
800 Wp
+250 W for AIKO-A800-GRH78Dw
Module efficiency
21.30 %
24.90 %
+3.60 pp for AIKO-A800-GRH78Dw
Power density
212.8 Wp/m²
249.1 Wp/m²
+36.3 Wp/m² for AIKO-A800-GRH78Dw
Open-circuit voltage
49.90 V
59.32 V
9.42 V apart
Voltage at max power
42.10 V
49.36 V
7.26 V apart
Short-circuit current
13.80 A
17.06 A
3.26 A apart
Current at max power
13.07 A
16.21 A
3.14 A apart
Temperature
Temperature coefficient
-0.360 %/°C
-0.260 %/°C
+0.100 %/°C for AIKO-A800-GRH78Dw
Mechanical
Dimensions
2279x1134x35 mm
2465x1303x33 mm
2279x1134x35 mm vs 2465x1303x33 mm
Module area
2.584 m²
3.212 m²
0.628 m² apart
Weight
29.0 kg
39.8 kg
-10.8 kg for M550M-144
Weight per kWp
52.7 kg/kWp
49.7 kg/kWp
-3.0 kg/kWp for AIKO-A800-GRH78Dw
Warranty and degradation
Product warranty
12 yrs
15 yrs
+3 yrs for AIKO-A800-GRH78Dw
Performance warranty
25 yrs
30 yrs
+5 yrs for AIKO-A800-GRH78Dw
Annual degradation
0.55 %/yr
-
Not published by AIKO
Technology
Cell technology
PERC
Back Contact
PERC 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
#8,585
vs
#11
AIKO-A800-GRH78Dw leads by 8,574 places
Power density
#8,709
vs
#11
AIKO-A800-GRH78Dw leads by 8,698 places
Heat behaviour
#12,425
vs
#515
AIKO-A800-GRH78Dw leads by 11,910 places
Weight
#6,427
vs
#3,225
AIKO-A800-GRH78Dw leads by 3,202 places
Warranty
#9,912
vs
#21
AIKO-A800-GRH78Dw leads by 9,891 places
Overall
#8,140
vs
#2
AIKO-A800-GRH78Dw leads by 8,138 places
05
Open the full database
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Same series, other bin
AIKO AIKO-A800-GRH78Dw vs AIKO AIKO-A805-GRH78Dw
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AIKO AIKO-A800-GRH78Dw vs AIKO AIKO-A795-GRH78Dw
The same specification on paper
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: AIKO M550M-144 or AIKO AIKO-A800-GRH78Dw?
According to our database: AIKO AIKO-A800-GRH78Dw has higher module efficiency (24.90% vs 21.30%); AIKO AIKO-A800-GRH78Dw tolerates heat better (temp coeff -0.260%/°C vs -0.360%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO M550M-144 and AIKO AIKO-A800-GRH78Dw?
AIKO M550M-144 has a module efficiency of 21.30%, while AIKO AIKO-A800-GRH78Dw is 24.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO M550M-144 use vs AIKO AIKO-A800-GRH78Dw?
AIKO M550M-144 uses PERC cells; AIKO AIKO-A800-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 M550M-144 and AIKO AIKO-A800-GRH78Dw?
AIKO M550M-144 has a 25 years power warranty; AIKO AIKO-A800-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 M550M-144 and AIKO AIKO-A800-GRH78Dw bifacial panels?
AIKO AIKO-A800-GRH78Dw is bifacial (captures light from both faces); AIKO M550M-144 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
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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.