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MD-120BD-440 vs ME-132-660 5 of 19 identical Swap Change panels

AE Solar MD-120BD-440 vs AE Solar ME-132-660

MD-120BD-440
440 Wp 20.42 % PERC Bifacial
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VS
ME-132-660
660 Wp 21.27 % PERC
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The verdict

ME-132-660 leads on the differences that matter

The largest is module efficiency: 0.85 pp more efficient. 5 of 19 comparable parameters are identical.

See all 14 differences
How alike are they
5 of 19 comparable
parameters are identical
identical differs
01

What actually differs

14 of 19 parameters
Parameter MD-120BD-440 ME-132-660 Difference
Module efficiency 20.42 % 21.27 % 0.85 pp more efficient
Rated power 440 Wp 660 Wp 220 W more power
Weight 25.5 kg 31.5 kg 6.0 kg lighter
Weight per kWp 58.0 kg/kWp 47.7 kg/kWp 10.2 kg/kWp lighter
Power density 204.2 Wp/m² 212.7 Wp/m² 8.5 Wp/m² higher
Open-circuit voltage 41.35 V 45.90 V 4.55 V apart
Short-circuit current 13.47 A 18.43 A 4.96 A apart
Module area 2.155 m² 3.103 m² 0.948 m² apart
Temperature coefficient -0.350 %/°C -0.340 %/°C 0.010 %/°C better in heat
Current at max power 12.71 A 17.46 A 4.75 A apart
Cell count 120 132 12 cells apart
Voltage at max power 34.62 V 37.80 V 3.18 V apart
Bifacial Yes No Yes vs No
Dimensions 1902x1133x30 mm 2383x1302x30 mm 1902x1133x30 mm vs 2383x1302x30 mm
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
MD-120BD-440
14,181 kWh
ME-132-660
21,271 kWh
Lifetime gap
7,090 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MD-120BD-440 ME-132-660
Standard test conditions 25 °C 100.0% of rated power 440 W 660 W
Cool, bright day 40 °C 94.8% of rated power 417 W 626 W
Typical summer roof 55 °C 89.5% of rated power 394 W 593 W
Hot roof 70 °C 84.2% of rated power 371 W 559 W
03

Full specification

Parameter MD-120BD-440 ME-132-660 Difference
Power and efficiency
Rated power 440 Wp 660 Wp +220 W for ME-132-660
Module efficiency 20.42 % 21.27 % +0.85 pp for ME-132-660
Power density 204.2 Wp/m² 212.7 Wp/m² +8.5 Wp/m² for ME-132-660
Open-circuit voltage 41.35 V 45.90 V 4.55 V apart
Voltage at max power 34.62 V 37.80 V 3.18 V apart
Short-circuit current 13.47 A 18.43 A 4.96 A apart
Current at max power 12.71 A 17.46 A 4.75 A apart
Temperature
Temperature coefficient -0.350 %/°C -0.340 %/°C +0.010 %/°C for ME-132-660
Mechanical
Dimensions 1902x1133x30 mm 2383x1302x30 mm 1902x1133x30 mm vs 2383x1302x30 mm
Module area 2.155 m² 3.103 m² 0.948 m² apart
Weight 25.5 kg 31.5 kg -6.0 kg for MD-120BD-440
Weight per kWp 58.0 kg/kWp 47.7 kg/kWp -10.2 kg/kWp for ME-132-660
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 132 12 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,013 panels
Efficiency
#11,555 vs #8,830
ME-132-660 leads by 2,725 places
Power density
#11,566 vs #8,699
ME-132-660 leads by 2,867 places
Heat behaviour
#10,400 vs #8,759
ME-132-660 leads by 1,641 places
Weight
#11,478 vs #1,822
ME-132-660 leads by 9,656 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#10,595 vs #2,441
ME-132-660 leads by 8,154 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar ME-132BD-660
12 differences, the largest is module efficiency
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar AE ME-132 660W
15 differences, the largest is module efficiency
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar AE ME-132BD-660
13 differences, the largest is module efficiency
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar AE ME-132-660
15 differences, the largest is module efficiency
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar ME-132BD-655
12 differences, the largest is module efficiency
Same series, other bin
AE Solar MD-120BD-440 vs AE Solar AE ME-132 655W
15 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar MD-120BD-440 or AE Solar ME-132-660?
According to our database: AE Solar ME-132-660 has higher module efficiency (21.27% vs 20.42%); AE Solar ME-132-660 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 MD-120BD-440 and AE Solar ME-132-660?
AE Solar MD-120BD-440 has a module efficiency of 20.42%, while AE Solar ME-132-660 is 21.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar MD-120BD-440 use vs AE Solar ME-132-660?
AE Solar MD-120BD-440 uses PERC cells; AE Solar ME-132-660 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-120BD-440 and AE Solar ME-132-660?
AE Solar MD-120BD-440 has a 30 years power warranty; AE Solar ME-132-660 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-120BD-440 and AE Solar ME-132-660 bifacial panels?
AE Solar MD-120BD-440 is bifacial (captures light from both faces); AE Solar ME-132-660 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.