Longi Solar LR7-54HVH-500M vs AIKO AIKO-A655-GRH66Dw
VS
The verdict
LR7-54HVH-500M leads on the differences that matter
The largest is rated power: 155 W more power. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
LR7-54HVH-500M
AIKO-A655-GRH66Dw
Difference
Rated power
500 Wp
655 Wp
155 W more power
Weight
21.6 kg
32.5 kg
10.9 kg lighter
Weight per kWp
43.2 kg/kWp
49.6 kg/kWp
6.4 kg/kWp lighter
Open-circuit voltage
40.75 V
49.40 V
8.65 V apart
Module area
2.041 m²
2.701 m²
0.660 m² apart
Module efficiency
24.50 %
24.20 %
0.30 pp more efficient
Cell technology
N-type
Back Contact
N-type vs Back Contact
Short-circuit current
15.53 A
16.69 A
1.16 A apart
Voltage at max power
33.73 V
42.10 V
8.37 V apart
Cell count
108
132
24 cells apart
Bifacial
No
Yes
No vs Yes
Dimensions
1800x1134x30 mm
2382x1134x30 mm
1800x1134x30 mm vs 2382x1134x30 mm
Current at max power
14.83 A
15.56 A
0.73 A apart
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.
LR7-54HVH-500M
16,907 kWh
AIKO-A655-GRH66Dw
22,148 kWh
Lifetime gap
5,241 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
LR7-54HVH-500M
AIKO-A655-GRH66Dw
Standard test conditions
25 °C
100.0% of rated power
500 W
655 W
Cool, bright day
40 °C
96.1% of rated power
481 W
629 W
Typical summer roof
55 °C
92.2% of rated power
461 W
604 W
Hot roof
70 °C
88.3% of rated power
442 W
578 W
03
Full specification
Parameter
LR7-54HVH-500M
AIKO-A655-GRH66Dw
Difference
Power and efficiency
Rated power
500 Wp
655 Wp
+155 W for AIKO-A655-GRH66Dw
Module efficiency
24.50 %
24.20 %
+0.30 pp for LR7-54HVH-500M
Power density
245.0 Wp/m²
242.5 Wp/m²
Effectively the same
Open-circuit voltage
40.75 V
49.40 V
8.65 V apart
Voltage at max power
33.73 V
42.10 V
8.37 V apart
Short-circuit current
15.53 A
16.69 A
1.16 A apart
Current at max power
14.83 A
15.56 A
0.73 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
1800x1134x30 mm
2382x1134x30 mm
1800x1134x30 mm vs 2382x1134x30 mm
Module area
2.041 m²
2.701 m²
0.660 m² apart
Weight
21.6 kg
32.5 kg
-10.9 kg for LR7-54HVH-500M
Weight per kWp
43.2 kg/kWp
49.6 kg/kWp
-6.4 kg/kWp for LR7-54HVH-500M
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
108
132
24 cells apart
Bifacial
No
Yes
No vs Yes
04
14,005 panels
Against the whole database
Efficiency
#74
vs
#184
LR7-54HVH-500M leads by 110 places
Power density
#77
vs
#172
LR7-54HVH-500M leads by 95 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#274
vs
#3,162
LR7-54HVH-500M leads by 2,888 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,105
vs
#738
AIKO-A655-GRH66Dw leads by 3,367 places
05
Open the full database
More useful comparisons
Same series, other bin
Longi Solar LR7-54HVH-500M vs Longi Solar LR7-54HVH-495M
One difference: module efficiency
Same series, other bin
Longi Solar LR7-54HVH-500M vs Longi Solar LR7-54HVH-490M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR7-54HVH-500M vs Longi Solar LR7-54HVH-485M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR7-54HVH-500M vs Longi Solar LR7-54HVH-480M
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A655-GRH66Dw vs AIKO AIKO-G660-MCH72Dw
7 differences, the largest is open-circuit voltage
Same series, other bin
AIKO AIKO-A655-GRH66Dw vs AIKO AIKO-A660-GRH66Dw
One difference: module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR7-54HVH-500M or AIKO AIKO-A655-GRH66Dw?
According to our database: Longi Solar LR7-54HVH-500M has higher module efficiency (24.50% vs 24.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR7-54HVH-500M and AIKO AIKO-A655-GRH66Dw?
Longi Solar LR7-54HVH-500M has a module efficiency of 24.50%, while AIKO AIKO-A655-GRH66Dw is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR7-54HVH-500M use vs AIKO AIKO-A655-GRH66Dw?
Longi Solar LR7-54HVH-500M uses N-type cells; AIKO AIKO-A655-GRH66Dw 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 Longi Solar LR7-54HVH-500M and AIKO AIKO-A655-GRH66Dw?
Longi Solar LR7-54HVH-500M has a 30 years power warranty; AIKO AIKO-A655-GRH66Dw 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 Longi Solar LR7-54HVH-500M and AIKO AIKO-A655-GRH66Dw bifacial panels?
AIKO AIKO-A655-GRH66Dw is bifacial (captures light from both faces); Longi Solar LR7-54HVH-500M is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 175 Longi Solar offers · See 174 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.