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(550W) vs (545W) 17 of 18 identical Swap Change panels

AE Solar AE MD-144 530W-550W (550W) vs AE Solar AE MD-144 530W-550W (545W)

AE Solar AE MD-144 530W-550W (550W)
AE MD-144 530W-550W (550W)
550 Wp 21.31 % PERC Incomplete
Open panel page Datasheet PDF
VS
AE Solar AE MD-144 530W-550W (545W)
AE MD-144 530W-550W (545W)
545 Wp 21.12 % PERC Incomplete
Open panel page Datasheet PDF
The verdict

One difference, none of them an advantage

The largest is open-circuit voltage: 1.43 V apart. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference
How alike are they
17 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

1 of 18 parameters
Parameter (550W) (545W) Difference
Open-circuit voltage 51.44 V 50.01 V 1.43 V apart
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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
(550W)
18,157 kWh
(545W)
17,992 kWh
Lifetime gap
165 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario (550W) (545W)
Standard test conditions 25 °C 100.0% of rated power 550 W 545 W
Cool, bright day 40 °C 94.8% of rated power 521 W 516 W
Typical summer roof 55 °C 89.5% of rated power 492 W 488 W
Hot roof 70 °C 84.2% of rated power 463 W 459 W
03

Full specification

Parameter (550W) (545W) Difference
Power and efficiency
Rated power 550 Wp 545 Wp Effectively the same
Module efficiency 21.31 % 21.12 % Effectively the same
Power density 213.1 Wp/m² 211.2 Wp/m² Effectively the same
Open-circuit voltage 51.44 V 50.01 V 1.43 V apart
Voltage at max power 42.57 V 42.38 V Effectively the same
Short-circuit current 13.67 A 13.62 A Effectively the same
Current at max power 12.92 A 12.86 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 2278x1133x30 mm 2278x1133x30 mm Same
Module area 2.581 m² 2.581 m² Same
Weight 26.5 kg 26.5 kg Same
Weight per kWp 48.2 kg/kWp 48.6 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 144 144 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#8,503 vs #9,255
(550W) leads by 752 places
Power density
#8,474 vs #9,256
(550W) leads by 782 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#2,087 vs #2,373
(550W) leads by 286 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,124 vs #6,577
(550W) leads by 453 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar AE MD-144 530W-550W (550W) vs AE Solar AE MD-144 530W-550W (540W)
4 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-144 530W-550W (550W) vs AE Solar AE MD-144 530W-550W (535W)
4 differences, the largest is module efficiency
Same series, other bin
AE Solar AE MD-144 530W-550W (550W) vs AE Solar AE MD-144 530W-550W (530W)
4 differences, the largest is module efficiency
Same manufacturer
AE Solar AE MD-144 530W-550W (550W) vs AE Solar CME-132BDS-730
15 differences, the largest is module efficiency
Same manufacturer
AE Solar AE MD-144 530W-550W (550W) vs AE Solar CME-132BDS-730W
14 differences, the largest is module efficiency
Same manufacturer
AE Solar AE MD-144 530W-550W (550W) vs AE Solar CME-132BDS-725
16 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar AE MD-144 530W-550W (550W) or AE Solar AE MD-144 530W-550W (545W)?
According to our database: AE Solar AE MD-144 530 W-550 W (550 W) has higher module efficiency (21.31% vs 21.12%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AE Solar AE MD-144 530W-550W (550W) and AE Solar AE MD-144 530W-550W (545W)?
AE Solar AE MD-144 530 W-550 W (550 W) has a module efficiency of 21.31%, while AE Solar AE MD-144 530 W-550 W (545 W) is 21.12%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AE Solar AE MD-144 530W-550W (550W) use vs AE Solar AE MD-144 530W-550W (545W)?
AE Solar AE MD-144 530 W-550 W (550 W) uses PERC cells; AE Solar AE MD-144 530 W-550 W (545 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 MD-144 530W-550W (550W) and AE Solar AE MD-144 530W-550W (545W)?
AE Solar AE MD-144 530 W-550 W (550 W) has a 30 years power warranty; AE Solar AE MD-144 530 W-550 W (545 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 5 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.