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AE ME-132BD-645 vs ME-132-660 12 of 19 identical Swap Change panels

AE Solar AE ME-132BD-645 vs AE Solar ME-132-660

AE Solar AE ME-132BD-645
AE ME-132BD-645
645 Wp 20.79 % PERC Bifacial
Open panel page Datasheet PDF
VS
AE Solar ME-132-660
ME-132-660
660 Wp 21.27 % PERC
Open panel page Datasheet PDF
The verdict

ME-132-660 leads on the differences that matter

The largest is module efficiency: 0.48 pp more efficient. 12 of 19 comparable parameters are identical.

See all 7 differences
How alike are they
12 of 19 comparable
parameters are identical
identical differs
01

What actually differs

7 of 19 parameters
Parameter AE ME-132BD-645 ME-132-660 Difference
Module efficiency 20.79 % 21.27 % 0.48 pp more efficient
Weight 37.0 kg 31.5 kg 5.5 kg lighter
Weight per kWp 57.4 kg/kWp 47.7 kg/kWp 9.6 kg/kWp lighter
Product warranty 30 yrs 15 yrs 15 yrs longer
Power density 207.9 Wp/m² 212.7 Wp/m² 4.8 Wp/m² higher
Rated power 645 Wp 660 Wp 15 W more power
Bifacial Yes No Yes vs No
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
Same temp coeff. for both panels (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
AE ME-132BD-645
20,788 kWh
ME-132-660
21,271 kWh
Lifetime gap
483 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario AE ME-132BD-645 ME-132-660
Standard test conditions 25 °C 100.0% of rated power 645 W 660 W
Cool, bright day 40 °C 94.9% of rated power 612 W 626 W
Typical summer roof 55 °C 89.8% of rated power 579 W 593 W
Hot roof 70 °C 84.7% of rated power 546 W 559 W
03

Full specification

Parameter AE ME-132BD-645 ME-132-660 Difference
Power and efficiency
Rated power 645 Wp 660 Wp +15 W for ME-132-660
Module efficiency 20.79 % 21.27 % +0.48 pp for ME-132-660
Power density 207.9 Wp/m² 212.7 Wp/m² +4.8 Wp/m² for ME-132-660
Open-circuit voltage 45.30 V 45.90 V Effectively the same
Voltage at max power 37.20 V 37.80 V Effectively the same
Short-circuit current 18.25 A 18.43 A Effectively the same
Current at max power 17.34 A 17.46 A Effectively the same
Temperature
Temperature coefficient -0.340 %/°C -0.340 %/°C Same
Mechanical
Dimensions 2383x1302x30 mm 2383x1302x30 mm Same
Module area 3.103 m² 3.103 m² Same
Weight 37.0 kg 31.5 kg -5.5 kg for ME-132-660
Weight per kWp 57.4 kg/kWp 47.7 kg/kWp -9.6 kg/kWp for ME-132-660
Warranty and degradation
Product warranty 30 yrs 15 yrs +15 yrs for AE ME-132BD-645
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 132 132 Same
Bifacial Yes No Yes vs No
04

Against the whole database

14,129 panels
Efficiency
#10,636 vs #8,918
ME-132-660 leads by 1,718 places
Power density
#10,570 vs #8,785
ME-132-660 leads by 1,785 places
Heat behaviour
#8,846 vs #8,846
Tied - the same position in the database
Weight
#11,272 vs #1,830
ME-132-660 leads by 9,442 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,343 vs #2,475
AE ME-132BD-645 leads by 1,132 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar ME-132BD-660
4 differences, the largest is module efficiency
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar AE ME-132 660W
6 differences, the largest is module efficiency
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar AE ME-132BD-660
3 differences, the largest is module efficiency
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar AE ME-132-660
6 differences, the largest is module efficiency
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar ME-132BD-655
4 differences, the largest is product warranty
Same series, other bin
AE Solar AE ME-132BD-645 vs AE Solar AE ME-132 655W
6 differences, the largest is weight
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar AE ME-132BD-645 or AE Solar ME-132-660?
According to our database: AE Solar ME-132-660 has higher module efficiency (21.27% vs 20.79%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar AE ME-132BD-645 and AE Solar ME-132-660?
AE Solar AE ME-132BD-645 has a module efficiency of 20.79%, 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 AE ME-132BD-645 use vs AE Solar ME-132-660?
AE Solar AE ME-132BD-645 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 AE ME-132BD-645 and AE Solar ME-132-660?
AE Solar AE ME-132BD-645 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 AE ME-132BD-645 and AE Solar ME-132-660 bifacial panels?
AE Solar AE ME-132BD-645 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.