AIKO AIKO-G655-MCH72Mw vs AIKO AIKO-G635-MCH72Mw
VS
The verdict
G655-MCH72Mw leads on the differences that matter
The largest is module efficiency: 0.70 pp more efficient. 15 of 19 comparable parameters are identical.
See all 4 differencesHow alike are they
15
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
4 of 19 parameters
What actually differs
Parameter
G655-MCH72Mw
G635-MCH72Mw
Difference
Module efficiency
24.20 %
23.50 %
0.70 pp more efficient
Power density
242.5 Wp/m²
235.1 Wp/m²
7.4 Wp/m² higher
Rated power
655 Wp
635 Wp
20 W more power
Cell technology
N-type
Back Contact
N-type vs Back Contact
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, 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.
G655-MCH72Mw
22,148 kWh
G635-MCH72Mw
21,471 kWh
Lifetime gap
677 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
G655-MCH72Mw
G635-MCH72Mw
Standard test conditions
25 °C
100.0% of rated power
655 W
635 W
Cool, bright day
40 °C
96.1% of rated power
629 W
610 W
Typical summer roof
55 °C
92.2% of rated power
604 W
585 W
Hot roof
70 °C
88.3% of rated power
578 W
561 W
03
Full specification
Parameter
G655-MCH72Mw
G635-MCH72Mw
Difference
Power and efficiency
Rated power
655 Wp
635 Wp
+20 W for G655-MCH72Mw
Module efficiency
24.20 %
23.50 %
+0.70 pp for G655-MCH72Mw
Power density
242.5 Wp/m²
235.1 Wp/m²
+7.4 Wp/m² for G655-MCH72Mw
Open-circuit voltage
54.50 V
54.10 V
Effectively the same
Voltage at max power
45.20 V
44.80 V
Effectively the same
Short-circuit current
15.18 A
14.94 A
Effectively the same
Current at max power
14.50 A
14.18 A
Effectively the same
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
31.5 kg
31.5 kg
Same
Weight per kWp
48.1 kg/kWp
49.6 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
0.35 %/yr
Same
Technology
Cell technology
N-type
Back Contact
N-type vs Back Contact
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#184
vs
#716
G655-MCH72Mw leads by 532 places
Power density
#172
vs
#741
G655-MCH72Mw leads by 569 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#2,055
vs
#3,152
G655-MCH72Mw leads by 1,097 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#728
vs
#1,432
G655-MCH72Mw leads by 704 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-G655-MCH72Mw or AIKO AIKO-G635-MCH72Mw?
According to our database: AIKO AIKO-G655-MCH72Mw has higher module efficiency (24.20% vs 23.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-G655-MCH72Mw and AIKO AIKO-G635-MCH72Mw?
AIKO AIKO-G655-MCH72Mw has a module efficiency of 24.20%, while AIKO AIKO-G635-MCH72Mw is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-G655-MCH72Mw use vs AIKO AIKO-G635-MCH72Mw?
AIKO AIKO-G655-MCH72Mw uses N-type cells; AIKO AIKO-G635-MCH72Mw 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-G655-MCH72Mw and AIKO AIKO-G635-MCH72Mw?
AIKO AIKO-G655-MCH72Mw has a 30 years power warranty; AIKO AIKO-G635-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.
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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.