AE Solar MD-120BS-455 vs AE Solar MD-120BS-440
VS
The verdict
455 leads on the differences that matter
The largest is module efficiency: 0.69 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 3 differencesHow alike are they
15
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
3 of 18 parameters
What actually differs
Parameter
455
440
Difference
Module efficiency
21.11 %
20.42 %
0.69 pp more efficient
Power density
211.1 Wp/m²
204.2 Wp/m²
7.0 Wp/m² higher
Rated power
455 Wp
440 Wp
15 W more power
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.
455
15,020 kWh
440
14,525 kWh
Lifetime gap
495 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
455
440
Standard test conditions
25 °C
100.0% of rated power
455 W
440 W
Cool, bright day
40 °C
94.8% of rated power
431 W
417 W
Typical summer roof
55 °C
89.5% of rated power
407 W
394 W
Hot roof
70 °C
84.2% of rated power
383 W
371 W
03
Full specification
Parameter
455
440
Difference
Power and efficiency
Rated power
455 Wp
440 Wp
+15 W for 455
Module efficiency
21.11 %
20.42 %
+0.69 pp for 455
Power density
211.1 Wp/m²
204.2 Wp/m²
+7.0 Wp/m² for 455
Open-circuit voltage
42.29 V
41.35 V
Effectively the same
Voltage at max power
35.38 V
34.62 V
Effectively the same
Short-circuit current
13.62 A
13.47 A
Effectively the same
Current at max power
12.86 A
12.71 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
22.5 kg
Same
Weight per kWp
49.5 kg/kWp
51.1 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
30 yrs
30 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
-
-
Neither datasheet publishes this
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
120
120
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#9,339
vs
#11,656
455 leads by 2,317 places
Power density
#9,339
vs
#11,667
455 leads by 2,328 places
Heat behaviour
#10,489
vs
#10,489
Tied - the same position in the database
Weight
#2,986
vs
#4,509
455 leads by 1,523 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#6,615
vs
#8,080
455 leads by 1,465 places
05
Open the full database
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AE Solar MD-120BS-455 vs AE Solar MD-120BS-460
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AE Solar MD-120BS-455 vs AE Solar MD-120BS-450
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06
Written summary
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07
Questions about this pairing
Which panel is better: AE Solar MD-120BS-455 or AE Solar MD-120BS-440?
According to our database: AE Solar MD-120BS-455 has higher module efficiency (21.11% 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 MD-120BS-455 and AE Solar MD-120BS-440?
AE Solar MD-120BS-455 has a module efficiency of 21.11%, while AE Solar MD-120BS-440 is 20.42%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar MD-120BS-455 use vs AE Solar MD-120BS-440?
AE Solar MD-120BS-455 uses PERC cells; AE Solar MD-120BS-440 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 MD-120BS-455 and AE Solar MD-120BS-440?
AE Solar MD-120BS-455 has a 30 years power warranty; AE Solar MD-120BS-440 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 MD-120BS-455 and AE Solar MD-120BS-440 bifacial panels?
Both AE Solar MD-120BS-455 and AE Solar MD-120BS-440 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 4 AE Solar 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.