AE Solar AE ME-132 660W vs AE Solar AE ME-132 645W
VS
The verdict
660W leads on the differences that matter
The largest is module efficiency: 0.48 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
660W
645W
Difference
Module efficiency
21.27 %
20.79 %
0.48 pp more efficient
Power density
212.7 Wp/m²
207.9 Wp/m²
4.8 Wp/m² higher
Rated power
660 Wp
645 Wp
15 W more power
02
What it means on a roof
Thirty years of production
A 1.0% first-year loss then 0.40% a year, 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.
660W
22,144 kWh
645W
21,641 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
660W
645W
Standard test conditions
25 °C
100.0% of rated power
660 W
645 W
Cool, bright day
40 °C
94.9% of rated power
626 W
612 W
Typical summer roof
55 °C
89.8% of rated power
593 W
579 W
Hot roof
70 °C
84.7% of rated power
559 W
546 W
03
Full specification
Parameter
660W
645W
Difference
Power and efficiency
Rated power
660 Wp
645 Wp
+15 W for 660W
Module efficiency
21.27 %
20.79 %
+0.48 pp for 660W
Power density
212.7 Wp/m²
207.9 Wp/m²
+4.8 Wp/m² for 660W
Open-circuit voltage
45.90 V
45.30 V
Effectively the same
Voltage at max power
37.80 V
37.20 V
Effectively the same
Short-circuit current
18.43 A
18.25 A
Effectively the same
Current at max power
17.46 A
17.34 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
31.5 kg
31.5 kg
Same
Weight per kWp
47.7 kg/kWp
48.8 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
132
132
Same
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#8,918
vs
#10,636
660W leads by 1,718 places
Power density
#8,785
vs
#10,570
660W leads by 1,785 places
Heat behaviour
#8,846
vs
#8,846
Tied - the same position in the database
Weight
#1,830
vs
#2,498
660W leads by 668 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#796
vs
#1,310
660W leads by 514 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: AE Solar AE ME-132 660W or AE Solar AE ME-132 645W?
According to our database: AE Solar AE ME-132 660 W 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-132 660W and AE Solar AE ME-132 645W?
AE Solar AE ME-132 660 W has a module efficiency of 21.27%, while AE Solar AE ME-132 645 W is 20.79%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar AE ME-132 660W use vs AE Solar AE ME-132 645W?
AE Solar AE ME-132 660 W uses PERC cells; AE Solar AE ME-132 645 W 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-132 660W and AE Solar AE ME-132 645W?
AE Solar AE ME-132 660 W has a 30 years power warranty; AE Solar AE ME-132 645 W 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.
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.