AE MD-144BD-540 vs MD-144BS-550W 13 of 19 identical Swap Change panels

AE Solar AE MD-144BD-540 vs AE Solar MD-144BS-550W

Q: Which panel is better: AE Solar AE MD-144BD-540 or AE Solar MD-144BS-550W?

According to our database: AE Solar MD-144BS-550W has higher module efficiency (21.31% vs 20.92%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 has a module efficiency of 20.92%, while AE Solar MD-144BS-550W is 21.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does AE Solar AE MD-144BD-540 use vs AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 uses PERC cells; AE Solar MD-144BS-550W uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 has a 30 years power warranty; AE Solar MD-144BS-550W 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.

Q: Are AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W bifacial panels?

Both AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W 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.

AE MD-144BD-540

540 Wp 20.92 % PERC Bifacial

Open panel page Datasheet PDF

MD-144BS-550W

550 Wp 21.31 % PERC Bifacial

Open panel page Datasheet PDF

The verdict

MD-144BS-550W leads on the differences that matter

The largest is weight: 4.5 kg lighter. 13 of 19 comparable parameters are identical.

See all 6 differences

How alike are they

13 of 19 comparable
parameters are identical

identical differs

What actually differs

6 of 19 parameters

Parameter AE MD-144BD-540 MD-144BS-550W Difference

Weight 31.0 kg 26.5 kg 4.5 kg lighter

Weight per kWp 57.4 kg/kWp 48.2 kg/kWp 9.2 kg/kWp lighter

Module efficiency 20.92 % 21.31 % 0.39 pp more efficient

Power density 209.2 Wp/m² 213.1 Wp/m² 3.9 Wp/m² higher

Rated power 540 Wp 550 Wp 10 W more power

Open-circuit voltage 49.90 V 51.44 V 1.54 V apart

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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.

AE MD-144BD-540

17,404 kWh

MD-144BS-550W

17,726 kWh

Lifetime gap

322 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario AE MD-144BD-540 MD-144BS-550W

Standard test conditions 25 °C 100.0% of rated power 540 W 550 W

Cool, bright day 40 °C 94.8% of rated power 512 W 521 W

Typical summer roof 55 °C 89.5% of rated power 483 W 492 W

Hot roof 70 °C 84.2% of rated power 455 W 463 W

Full specification

Parameter AE MD-144BD-540 MD-144BS-550W Difference

Power and efficiency

Rated power 540 Wp 550 Wp +10 W for MD-144BS-550W

Module efficiency 20.92 % 21.31 % +0.39 pp for MD-144BS-550W

Power density 209.2 Wp/m² 213.1 Wp/m² +3.9 Wp/m² for MD-144BS-550W

Open-circuit voltage 49.90 V 51.44 V 1.54 V apart

Voltage at max power 42.15 V 42.57 V Effectively the same

Short-circuit current 13.57 A 13.67 A Effectively the same

Current at max power 12.81 A 12.92 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 31.0 kg 26.5 kg -4.5 kg for MD-144BS-550W

Weight per kWp 57.4 kg/kWp 48.2 kg/kWp -9.2 kg/kWp for MD-144BS-550W

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 144 144 Same

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#10,014 vs #8,503

MD-144BS-550W leads by 1,511 places

Power density

#10,065 vs #8,474

MD-144BS-550W leads by 1,591 places

Heat behaviour

#10,419 vs #10,419

Tied - the same position in the database

Weight

#11,198 vs #2,087

MD-144BS-550W leads by 9,111 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#7,151 vs #6,124

MD-144BS-550W leads by 1,027 places

More useful comparisons

Open the full database

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4 differences, the largest is module efficiency

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AE Solar AE MD-144BD-540 vs AE Solar MD-144BS-545

4 differences, the largest is weight

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AE Solar AE MD-144BD-540 vs AE Solar AE MD-144BD-545

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AE Solar AE MD-144BD-540 vs AE Solar MD-144BS-545W

3 differences, the largest is weight

Same series, other bin

AE Solar AE MD-144BD-540 vs AE Solar MD-144BS-540

3 differences, the largest is weight

Written summary

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Questions about this pairing

Which panel is better: AE Solar AE MD-144BD-540 or AE Solar MD-144BS-550W?

According to our database: AE Solar MD-144BS-550 W has higher module efficiency (21.31% vs 20.92%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 has a module efficiency of 20.92%, while AE Solar MD-144BS-550 W is 21.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does AE Solar AE MD-144BD-540 use vs AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 uses PERC cells; AE Solar MD-144BS-550 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-144BD-540 and AE Solar MD-144BS-550W?

AE Solar AE MD-144BD-540 has a 30 years power warranty; AE Solar MD-144BS-550 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.

Are AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550W bifacial panels?

Both AE Solar AE MD-144BD-540 and AE Solar MD-144BS-550 W 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 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.