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650 vs 660 15 of 18 identical Swap Change panels

AE Solar ME-132BD-650 vs AE Solar ME-132BD-660

AE Solar ME-132BD-650
ME-132BD-650
650 Wp 20.95 % PERC Bifacial Incomplete
Open panel page Datasheet PDF
VS
AE Solar ME-132BD-660
ME-132BD-660
660 Wp 21.27 % PERC Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

660 leads on the differences that matter

The largest is module efficiency: 0.32 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 differences
How alike are they
15 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 18 parameters
Parameter 650 660 Difference
Module efficiency 20.95 % 21.27 % 0.32 pp more efficient
Power density 209.5 Wp/m² 212.7 Wp/m² 3.2 Wp/m² higher
Rated power 650 Wp 660 Wp 10 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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
650
21,458 kWh
660
21,788 kWh
Lifetime gap
330 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 650 660
Standard test conditions 25 °C 100.0% of rated power 650 W 660 W
Cool, bright day 40 °C 94.9% of rated power 617 W 626 W
Typical summer roof 55 °C 89.8% of rated power 584 W 593 W
Hot roof 70 °C 84.7% of rated power 551 W 559 W
03

Full specification

Parameter 650 660 Difference
Power and efficiency
Rated power 650 Wp 660 Wp +10 W for 660
Module efficiency 20.95 % 21.27 % +0.32 pp for 660
Power density 209.5 Wp/m² 212.7 Wp/m² +3.2 Wp/m² for 660
Open-circuit voltage 45.50 V 45.90 V Effectively the same
Voltage at max power 37.40 V 37.80 V Effectively the same
Short-circuit current 18.32 A 18.43 A Effectively the same
Current at max power 17.38 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 37.0 kg Same
Weight per kWp 56.9 kg/kWp 56.1 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 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 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#10,058 vs #8,918
660 leads by 1,140 places
Power density
#10,019 vs #8,785
660 leads by 1,234 places
Heat behaviour
#8,846 vs #8,846
Tied - the same position in the database
Weight
#11,017 vs #10,447
660 leads by 570 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,306 vs #2,574
660 leads by 732 places
05

More useful comparisons

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

Written summary

07

Questions about this pairing

Which panel is better: AE Solar ME-132BD-650 or AE Solar ME-132BD-660?
According to our database: AE Solar ME-132BD-660 has higher module efficiency (21.27% vs 20.95%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar ME-132BD-650 and AE Solar ME-132BD-660?
AE Solar ME-132BD-650 has a module efficiency of 20.95%, while AE Solar ME-132BD-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 ME-132BD-650 use vs AE Solar ME-132BD-660?
AE Solar ME-132BD-650 uses PERC cells; AE Solar ME-132BD-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 ME-132BD-650 and AE Solar ME-132BD-660?
AE Solar ME-132BD-650 has a 30 years power warranty; AE Solar ME-132BD-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 ME-132BD-650 and AE Solar ME-132BD-660 bifacial panels?
Both AE Solar ME-132BD-650 and AE Solar ME-132BD-660 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.