Sharp GSD8K66H-740WT vs AIKO AIKO-A795-GRH78Dw
VS
The verdict
AIKO-A795-GRH78Dw leads on the differences that matter
The largest is module efficiency: 0.98 pp more efficient. 5 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 13 differencesHow alike are they
5
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
13 of 18 parameters
What actually differs
Parameter
GSD8K66H-740WT
AIKO-A795-GRH78Dw
Difference
Module efficiency
23.82 %
24.80 %
0.98 pp more efficient
Rated power
740 Wp
795 Wp
55 W more power
Power density
238.2 Wp/m²
247.5 Wp/m²
9.3 Wp/m² higher
Product warranty
25 yrs
15 yrs
10 yrs longer
Open-circuit voltage
51.70 V
59.22 V
7.52 V apart
Module area
3.106 m²
3.212 m²
0.106 m² apart
Cell technology
HJT
Back Contact
HJT vs Back Contact
Voltage at max power
43.80 V
49.27 V
5.47 V apart
Cell count
132
156
24 cells apart
Weight per kWp
52.7 kg/kWp
50.1 kg/kWp
2.6 kg/kWp lighter
Short-circuit current
17.76 A
16.99 A
0.77 A apart
Dimensions
2384x1303x35 mm
2465x1303x33 mm
2384x1303x35 mm vs 2465x1303x33 mm
Current at max power
16.91 A
16.14 A
0.77 A apart
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.
GSD8K66H-740WT
24,828 kWh
AIKO-A795-GRH78Dw
26,674 kWh
Lifetime gap
1,846 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
GSD8K66H-740WT
AIKO-A795-GRH78Dw
Standard test conditions
25 °C
100.0% of rated power
740 W
795 W
Cool, bright day
40 °C
96.1% of rated power
711 W
764 W
Typical summer roof
55 °C
92.2% of rated power
682 W
733 W
Hot roof
70 °C
88.3% of rated power
653 W
702 W
03
Full specification
Parameter
GSD8K66H-740WT
AIKO-A795-GRH78Dw
Difference
Power and efficiency
Rated power
740 Wp
795 Wp
+55 W for AIKO-A795-GRH78Dw
Module efficiency
23.82 %
24.80 %
+0.98 pp for AIKO-A795-GRH78Dw
Power density
238.2 Wp/m²
247.5 Wp/m²
+9.3 Wp/m² for AIKO-A795-GRH78Dw
Open-circuit voltage
51.70 V
59.22 V
7.52 V apart
Voltage at max power
43.80 V
49.27 V
5.47 V apart
Short-circuit current
17.76 A
16.99 A
0.77 A apart
Current at max power
16.91 A
16.14 A
0.77 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2384x1303x35 mm
2465x1303x33 mm
2384x1303x35 mm vs 2465x1303x33 mm
Module area
3.106 m²
3.212 m²
0.106 m² apart
Weight
39.0 kg
39.8 kg
Effectively the same
Weight per kWp
52.7 kg/kWp
50.1 kg/kWp
-2.6 kg/kWp for AIKO-A795-GRH78Dw
Warranty and degradation
Product warranty
25 yrs
15 yrs
+10 yrs for GSD8K66H-740WT
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
-
Not published by AIKO
Technology
Cell technology
HJT
Back Contact
HJT vs Back Contact
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
156
24 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#418
vs
#12
AIKO-A795-GRH78Dw leads by 406 places
Power density
#431
vs
#38
AIKO-A795-GRH78Dw leads by 393 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#6,344
vs
#3,585
AIKO-A795-GRH78Dw leads by 2,759 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#12
vs
#3
AIKO-A795-GRH78Dw leads by 9 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: Sharp GSD8K66H-740WT or AIKO AIKO-A795-GRH78Dw?
According to our database: AIKO AIKO-A795-GRH78Dw has higher module efficiency (24.80% vs 23.82%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sharp GSD8K66H-740WT and AIKO AIKO-A795-GRH78Dw?
Sharp GSD8K66H-740WT has a module efficiency of 23.82%, while AIKO AIKO-A795-GRH78Dw is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sharp GSD8K66H-740WT use vs AIKO AIKO-A795-GRH78Dw?
Sharp GSD8K66H-740WT uses HJT cells; AIKO AIKO-A795-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 Sharp GSD8K66H-740WT and AIKO AIKO-A795-GRH78Dw?
Sharp GSD8K66H-740WT has a 30 years power warranty; AIKO AIKO-A795-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 Sharp GSD8K66H-740WT and AIKO AIKO-A795-GRH78Dw bifacial panels?
Both Sharp GSD8K66H-740WT and AIKO AIKO-A795-GRH78Dw are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 6 Sharp 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.