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120 440W-460W (Pmax 440W class) vs 120BD-460 11 of 18 identical Swap Change panels

AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar AE MD-120BD-460

AE Solar AE MD-120 440W-460W (Pmax 440W class)
AE MD-120 440W-460W (Pmax 440W class)
440 Wp 20.42 % PERC Incomplete
Open panel page Datasheet PDF
VS
AE Solar AE MD-120BD-460
AE MD-120BD-460
460 Wp 21.35 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

120BD-460 leads on the differences that matter

The largest is module efficiency: 0.93 pp more efficient. 11 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 7 differences
How alike are they
11 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 18 parameters
Parameter 120 440W-460W (Pmax 440W class) 120BD-460 Difference
Module efficiency 20.42 % 21.35 % 0.93 pp more efficient
Power density 204.2 Wp/m² 213.5 Wp/m² 9.3 Wp/m² higher
Weight 22.5 kg 25.5 kg 3.0 kg lighter
Rated power 440 Wp 460 Wp 20 W more power
Weight per kWp 51.1 kg/kWp 55.4 kg/kWp 4.3 kg/kWp lighter
Bifacial No Yes No vs Yes
Open-circuit voltage 41.35 V 42.60 V 1.25 V apart
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
120 440W-460W (Pmax 440W class)
14,525 kWh
120BD-460
15,186 kWh
Lifetime gap
661 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 120 440W-460W (Pmax 440W class) 120BD-460
Standard test conditions 25 °C 100.0% of rated power 440 W 460 W
Cool, bright day 40 °C 94.8% of rated power 417 W 436 W
Typical summer roof 55 °C 89.5% of rated power 394 W 412 W
Hot roof 70 °C 84.2% of rated power 371 W 388 W
03

Full specification

Parameter 120 440W-460W (Pmax 440W class) 120BD-460 Difference
Power and efficiency
Rated power 440 Wp 460 Wp +20 W for 120BD-460
Module efficiency 20.42 % 21.35 % +0.93 pp for 120BD-460
Power density 204.2 Wp/m² 213.5 Wp/m² +9.3 Wp/m² for 120BD-460
Open-circuit voltage 41.35 V 42.60 V 1.25 V apart
Voltage at max power 34.62 V 35.60 V Effectively the same
Short-circuit current 13.47 A 13.67 A Effectively the same
Current at max power 12.71 A 12.92 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 1902x1133x30 mm 1902x1133x30 mm Same
Module area 2.155 m² 2.155 m² Same
Weight 22.5 kg 25.5 kg -3.0 kg for 120 440W-460W (Pmax 440W class)
Weight per kWp 51.1 kg/kWp 55.4 kg/kWp -4.3 kg/kWp for 120 440W-460W (Pmax 440W class)
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - 0.55 %/yr Not published by AE Solar
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 120 Same
Bifacial No Yes No vs Yes
04

Against the whole database

14,129 panels
Efficiency
#11,656 vs #8,528
120BD-460 leads by 3,128 places
Power density
#11,667 vs #8,487
120BD-460 leads by 3,180 places
Heat behaviour
#10,489 vs #10,489
Tied - the same position in the database
Weight
#4,509 vs #9,940
120 440W-460W (Pmax 440W class) leads by 5,431 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,080 vs #6,272
120BD-460 leads by 1,808 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar MD-120BD-460
8 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar AE MD-120 440W-460W (Pmax 460W class)
5 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar MD-120BS-460
6 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar MD-120E-460
5 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar AE MD-120BS-460
6 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-120 440W-460W (Pmax 440W class) vs AE Solar AE MD-120 460W
6 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar AE MD-120 440W-460W (Pmax 440W class) or AE Solar AE MD-120BD-460?
According to our database: AE Solar AE MD-120BD-460 has higher module efficiency (21.35% vs 20.42%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar AE MD-120 440W-460W (Pmax 440W class) and AE Solar AE MD-120BD-460?
AE Solar AE MD-120 440 W-460 W (Pmax 440 W class) has a module efficiency of 20.42%, while AE Solar AE MD-120BD-460 is 21.35%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar AE MD-120 440W-460W (Pmax 440W class) use vs AE Solar AE MD-120BD-460?
AE Solar AE MD-120 440 W-460 W (Pmax 440 W class) uses PERC cells; AE Solar AE MD-120BD-460 uses PERC. 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 AE Solar AE MD-120 440W-460W (Pmax 440W class) and AE Solar AE MD-120BD-460?
AE Solar AE MD-120 440 W-460 W (Pmax 440 W class) has a 30 years power warranty; AE Solar AE MD-120BD-460 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 AE Solar AE MD-120 440W-460W (Pmax 440W class) and AE Solar AE MD-120BD-460 bifacial panels?
AE Solar AE MD-120BD-460 is bifacial (captures light from both faces); AE Solar AE MD-120 440 W-460 W (Pmax 440 W class) is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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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.