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JKM640N-66HL4M-BDV vs AIKO-A655-MDE72Mw 4 of 19 identical Swap Change panels

Jinko Solar JKM640N-66HL4M-BDV vs AIKO AIKO-A655-MDE72Mw

Jinko Solar JKM640N-66HL4M-BDV
JKM640N-66HL4M-BDV
640 Wp 23.69 % N-type Bifacial
Open panel page Datasheet PDF
VS
AIKO AIKO-A655-MDE72Mw
AIKO-A655-MDE72Mw
655 Wp 24.20 % Back Contact
Open panel page Datasheet PDF
The verdict

AIKO-A655-MDE72Mw leads on the differences that matter

The largest is temperature coefficient: 0.030 %/°C better in heat. 4 of 19 comparable parameters are identical.

See all 15 differences
How alike are they
4 of 19 comparable
parameters are identical
identical differs
01

What actually differs

15 of 19 parameters
Parameter JKM640N-66HL4M-BDV AIKO-A655-MDE72Mw Difference
Temperature coefficient -0.290 %/°C -0.260 %/°C 0.030 %/°C better in heat
Module efficiency 23.69 % 24.20 % 0.51 pp more efficient
Weight 32.4 kg 29.0 kg 3.4 kg lighter
Weight per kWp 50.6 kg/kWp 44.3 kg/kWp 6.4 kg/kWp lighter
Product warranty 12 yrs 15 yrs 3 yrs longer
Open-circuit voltage 49.88 V 54.50 V 4.62 V apart
Power density 236.9 Wp/m² 242.5 Wp/m² 5.6 Wp/m² higher
Rated power 640 Wp 655 Wp 15 W more power
Cell technology N-type Back Contact N-type vs Back Contact
Short-circuit current 16.32 A 15.18 A 1.14 A apart
Annual degradation 0.40 %/yr 0.35 %/yr 0.05 %/yr slower
Cell count 132 144 12 cells apart
Voltage at max power 41.30 V 45.20 V 3.90 V apart
Bifacial Yes No Yes vs No
Current at max power 15.50 A 14.50 A 1.00 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
JKM640N-66HL4M-BDV
21,473 kWh
AIKO-A655-MDE72Mw
22,148 kWh
Lifetime gap
675 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM640N-66HL4M-BDV AIKO-A655-MDE72Mw
Standard test conditions 25 °C 100.0% of rated power 640 W 655 W
Cool, bright day 40 °C 95.7% of rated power 612 W 629 W
Typical summer roof 55 °C 91.3% of rated power 584 W 604 W
Hot roof 70 °C 87.0% of rated power 556 W 578 W
03

Full specification

Parameter JKM640N-66HL4M-BDV AIKO-A655-MDE72Mw Difference
Power and efficiency
Rated power 640 Wp 655 Wp +15 W for AIKO-A655-MDE72Mw
Module efficiency 23.69 % 24.20 % +0.51 pp for AIKO-A655-MDE72Mw
Power density 236.9 Wp/m² 242.5 Wp/m² +5.6 Wp/m² for AIKO-A655-MDE72Mw
Open-circuit voltage 49.88 V 54.50 V 4.62 V apart
Voltage at max power 41.30 V 45.20 V 3.90 V apart
Short-circuit current 16.32 A 15.18 A 1.14 A apart
Current at max power 15.50 A 14.50 A 1.00 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.260 %/°C +0.030 %/°C for AIKO-A655-MDE72Mw
Mechanical
Dimensions 2382x1134x30 mm 2382x1134x30 mm Same
Module area 2.701 m² 2.701 m² Same
Weight 32.4 kg 29.0 kg -3.4 kg for AIKO-A655-MDE72Mw
Weight per kWp 50.6 kg/kWp 44.3 kg/kWp -6.4 kg/kWp for AIKO-A655-MDE72Mw
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for AIKO-A655-MDE72Mw
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.35 %/yr -0.05 %/yr for AIKO-A655-MDE72Mw
Technology
Cell technology N-type Back Contact N-type vs Back Contact
Cell type Monocrystalline Monocrystalline Same
Cell count 132 144 12 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,129 panels
Efficiency
#612 vs #206
AIKO-A655-MDE72Mw leads by 406 places
Power density
#553 vs #192
AIKO-A655-MDE72Mw leads by 361 places
Heat behaviour
#2,220 vs #515
AIKO-A655-MDE72Mw leads by 1,705 places
Weight
#4,091 vs #415
AIKO-A655-MDE72Mw leads by 3,676 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,545 vs #676
AIKO-A655-MDE72Mw leads by 869 places
05

More useful comparisons

Open the full database
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The same specification on paper
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Jinko Solar JKM640N-66HL4M-BDV vs Jinko Solar JKM630N-66HL4M-BDV
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Jinko Solar JKM640N-66HL4M-BDV vs Jinko Solar JKM625N-66HL4M-BDV
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Jinko Solar JKM640N-66HL4M-BDV vs Jinko Solar JKM620N-66HL4M-BDV
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Jinko Solar JKM640N-66HL4M-BDV vs Jinko Solar JKM615N-66HL4M-BDV
5 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A655-MDE72Mw vs AIKO AIKO-A680-MDE72Mw
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM640N-66HL4M-BDV or AIKO AIKO-A655-MDE72Mw?
According to our database: AIKO AIKO-A655-MDE72Mw has higher module efficiency (24.20% vs 23.69%); AIKO AIKO-A655-MDE72Mw tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM640N-66HL4M-BDV and AIKO AIKO-A655-MDE72Mw?
Jinko Solar JKM640N-66HL4M-BDV has a module efficiency of 23.69%, while AIKO AIKO-A655-MDE72Mw is 24.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM640N-66HL4M-BDV use vs AIKO AIKO-A655-MDE72Mw?
Jinko Solar JKM640N-66HL4M-BDV uses N-type cells; AIKO AIKO-A655-MDE72Mw 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 Jinko Solar JKM640N-66HL4M-BDV and AIKO AIKO-A655-MDE72Mw?
Jinko Solar JKM640N-66HL4M-BDV has a 30 years power warranty; AIKO AIKO-A655-MDE72Mw 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 Jinko Solar JKM640N-66HL4M-BDV and AIKO AIKO-A655-MDE72Mw bifacial panels?
Jinko Solar JKM640N-66HL4M-BDV is bifacial (captures light from both faces); AIKO AIKO-A655-MDE72Mw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Compare Jinko Solar and AIKO as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.