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A680-MAE78Dw vs A800-GRH78Dw 9 of 18 identical Swap Change panels

AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A800-GRH78Dw

AIKO AIKO-A680-MAE78Dw
AIKO-A680-MAE78Dw
680 Wp 24.30 % Back Contact
Open panel page Datasheet PDF
VS
AIKO AIKO-A800-GRH78Dw
AIKO-A800-GRH78Dw
800 Wp 24.90 % Back Contact Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

A800-GRH78Dw leads on the differences that matter

The largest is rated power: 120 W more power. 9 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 9 differences
How alike are they
9 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 18 parameters
Parameter A680-MAE78Dw A800-GRH78Dw Difference
Rated power 680 Wp 800 Wp 120 W more power
Module efficiency 24.30 % 24.90 % 0.60 pp more efficient
Weight 34.5 kg 39.8 kg 5.3 kg lighter
Short-circuit current 14.56 A 17.06 A 2.50 A apart
Module area 2.795 m² 3.212 m² 0.417 m² apart
Power density 243.3 Wp/m² 249.1 Wp/m² 5.8 Wp/m² higher
Current at max power 13.91 A 16.21 A 2.30 A apart
Bifacial No Yes No vs Yes
Dimensions 2465x1134x30 mm 2465x1303x33 mm 2465x1134x30 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
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.
A680-MAE78Dw
22,815 kWh
A800-GRH78Dw
26,842 kWh
Lifetime gap
4,027 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario A680-MAE78Dw A800-GRH78Dw
Standard test conditions 25 °C 100.0% of rated power 680 W 800 W
Cool, bright day 40 °C 96.1% of rated power 653 W 769 W
Typical summer roof 55 °C 92.2% of rated power 627 W 738 W
Hot roof 70 °C 88.3% of rated power 600 W 706 W
03

Full specification

Parameter A680-MAE78Dw A800-GRH78Dw Difference
Power and efficiency
Rated power 680 Wp 800 Wp +120 W for A800-GRH78Dw
Module efficiency 24.30 % 24.90 % +0.60 pp for A800-GRH78Dw
Power density 243.3 Wp/m² 249.1 Wp/m² +5.8 Wp/m² for A800-GRH78Dw
Open-circuit voltage 59.04 V 59.32 V Effectively the same
Voltage at max power 48.91 V 49.36 V Effectively the same
Short-circuit current 14.56 A 17.06 A 2.50 A apart
Current at max power 13.91 A 16.21 A 2.30 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 2465x1134x30 mm 2465x1303x33 mm 2465x1134x30 mm vs 2465x1303x33 mm
Module area 2.795 m² 3.212 m² 0.417 m² apart
Weight 34.5 kg 39.8 kg -5.3 kg for A680-MAE78Dw
Weight per kWp 50.7 kg/kWp 49.7 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 - Not published by AIKO
Technology
Cell technology Back Contact Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 156 156 Same
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#131 vs #10
A800-GRH78Dw leads by 121 places
Power density
#134 vs #10
A800-GRH78Dw leads by 124 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#4,145 vs #3,214
A800-GRH78Dw leads by 931 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#372 vs #2
A800-GRH78Dw leads by 370 places
05

More useful comparisons

Open the full database
Same series, other bin
AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A700-MAE78Dw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A695-MAE78Dw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A690-MAE78Dw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A685-MAE78Dw
One difference: module efficiency
Same series, other bin
AIKO AIKO-A680-MAE78Dw vs AIKO AIKO-A675-MAE78Dw
One difference: module efficiency
Same series, other bin
AIKO AIKO-A800-GRH78Dw vs AIKO AIKO-A805-GRH78Dw
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AIKO AIKO-A680-MAE78Dw or AIKO AIKO-A800-GRH78Dw?
According to our database: AIKO AIKO-A800-GRH78Dw has higher module efficiency (24.90% vs 24.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-A680-MAE78Dw and AIKO AIKO-A800-GRH78Dw?
AIKO AIKO-A680-MAE78Dw has a module efficiency of 24.30%, 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 AIKO-A680-MAE78Dw use vs AIKO AIKO-A800-GRH78Dw?
AIKO AIKO-A680-MAE78Dw uses Back Contact 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 AIKO-A680-MAE78Dw and AIKO AIKO-A800-GRH78Dw?
AIKO AIKO-A680-MAE78Dw has a 30 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 AIKO-A680-MAE78Dw and AIKO AIKO-A800-GRH78Dw bifacial panels?
AIKO AIKO-A800-GRH78Dw is bifacial (captures light from both faces); AIKO AIKO-A680-MAE78Dw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

Shop prices: See 180 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.