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ME-132BD-655 vs MD-120BD-440 6 of 18 identical Swap Change panels

AE Solar ME-132BD-655 vs AE Solar MD-120BD-440

ME-132BD-655
655 Wp 21.11 % PERC Bifacial Incomplete
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VS
MD-120BD-440
440 Wp 20.42 % PERC Bifacial
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The verdict

ME-132BD-655 leads on the differences that matter

The largest is module efficiency: 0.69 pp more efficient. 6 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 12 differences
How alike are they
6 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 18 parameters
Parameter ME-132BD-655 MD-120BD-440 Difference
Module efficiency 21.11 % 20.42 % 0.69 pp more efficient
Rated power 655 Wp 440 Wp 215 W more power
Weight 37.0 kg 25.5 kg 11.5 kg lighter
Power density 211.1 Wp/m² 204.2 Wp/m² 6.9 Wp/m² higher
Open-circuit voltage 45.70 V 41.35 V 4.35 V apart
Short-circuit current 18.38 A 13.47 A 4.91 A apart
Module area 3.103 m² 2.155 m² 0.948 m² apart
Temperature coefficient -0.340 %/°C -0.350 %/°C 0.010 %/°C better in heat
Current at max power 17.42 A 12.71 A 4.71 A apart
Cell count 132 120 12 cells apart
Voltage at max power 37.60 V 34.62 V 2.98 V apart
Dimensions 2383x1302x30 mm 1902x1133x30 mm 2383x1302x30 mm vs 1902x1133x30 mm
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
ME-132BD-655
21,623 kWh
MD-120BD-440
14,525 kWh
Lifetime gap
7,098 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario ME-132BD-655 MD-120BD-440
Standard test conditions 25 °C 100.0% of rated power 655 W 440 W
Cool, bright day 40 °C 94.8% of rated power 622 W 417 W
Typical summer roof 55 °C 89.5% of rated power 588 W 394 W
Hot roof 70 °C 84.2% of rated power 555 W 371 W
03

Full specification

Parameter ME-132BD-655 MD-120BD-440 Difference
Power and efficiency
Rated power 655 Wp 440 Wp +215 W for ME-132BD-655
Module efficiency 21.11 % 20.42 % +0.69 pp for ME-132BD-655
Power density 211.1 Wp/m² 204.2 Wp/m² +6.9 Wp/m² for ME-132BD-655
Open-circuit voltage 45.70 V 41.35 V 4.35 V apart
Voltage at max power 37.60 V 34.62 V 2.98 V apart
Short-circuit current 18.38 A 13.47 A 4.91 A apart
Current at max power 17.42 A 12.71 A 4.71 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.350 %/°C +0.010 %/°C for ME-132BD-655
Mechanical
Dimensions 2383x1302x30 mm 1902x1133x30 mm 2383x1302x30 mm vs 1902x1133x30 mm
Module area 3.103 m² 2.155 m² 0.948 m² apart
Weight 37.0 kg 25.5 kg -11.5 kg for MD-120BD-440
Weight per kWp 56.5 kg/kWp 58.0 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - 0.55 %/yr Not published by AE Solar
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 120 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,013 panels
Efficiency
#9,252 vs #11,555
ME-132BD-655 leads by 2,303 places
Power density
#9,261 vs #11,566
ME-132BD-655 leads by 2,305 places
Heat behaviour
#8,759 vs #10,400
ME-132BD-655 leads by 1,641 places
Weight
#10,659 vs #11,478
ME-132BD-655 leads by 819 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,857 vs #10,595
ME-132BD-655 leads by 7,738 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar ME-132BD-660
The same specification on paper
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar AE ME-132BD-660
One difference: product warranty
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar AE ME-132BD-655
One difference: product warranty
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar ME-132BD-650
The same specification on paper
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar AE ME-132BD-650
One difference: product warranty
Same series, other bin
AE Solar ME-132BD-655 vs AE Solar ME-132BD-645
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar ME-132BD-655 or AE Solar MD-120BD-440?
According to our database: AE Solar ME-132BD-655 has higher module efficiency (21.11% vs 20.42%); AE Solar ME-132BD-655 tolerates heat better (temp coeff -0.340%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar ME-132BD-655 and AE Solar MD-120BD-440?
AE Solar ME-132BD-655 has a module efficiency of 21.11%, while AE Solar MD-120BD-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 ME-132BD-655 use vs AE Solar MD-120BD-440?
AE Solar ME-132BD-655 uses PERC cells; AE Solar MD-120BD-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 ME-132BD-655 and AE Solar MD-120BD-440?
AE Solar ME-132BD-655 has a 30 years power warranty; AE Solar MD-120BD-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 ME-132BD-655 and AE Solar MD-120BD-440 bifacial panels?
Both AE Solar ME-132BD-655 and AE Solar MD-120BD-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.