M550M-144 vs M540M-144 16 of 19 identical Swap Change panels

AIKO M550M-144 vs AIKO M540M-144

Q: Which panel is better: AIKO M550M-144 or AIKO M540M-144?

According to our database: AIKO M550M-144 has higher module efficiency (21.30% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of AIKO M550M-144 and AIKO M540M-144?

AIKO M550M-144 has a module efficiency of 21.30%, while AIKO M540M-144 is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does AIKO M550M-144 use vs AIKO M540M-144?

AIKO M550M-144 uses PERC cells; AIKO M540M-144 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 AIKO M550M-144 and AIKO M540M-144?

AIKO M550M-144 has a 25 years power warranty; AIKO M540M-144 has a 25 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.

M550M-144

550 Wp 21.30 % PERC

Open panel page Datasheet PDF

M540M-144

540 Wp 20.90 % PERC

Open panel page Datasheet PDF

The verdict

M550M-144 leads on the differences that matter

The largest is module efficiency: 0.40 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences

How alike are they

16 of 19 comparable
parameters are identical

identical differs

What actually differs

3 of 19 parameters

Parameter M550M-144 M540M-144 Difference

Module efficiency 21.30 % 20.90 % 0.40 pp more efficient

Power density 212.8 Wp/m² 208.9 Wp/m² 3.9 Wp/m² higher

Rated power 550 Wp 540 Wp 10 W more power

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 (-0.360 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

M550M-144

17,825 kWh

M540M-144

17,501 kWh

Lifetime gap

324 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario M550M-144 M540M-144

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

Cool, bright day 40 °C 94.6% of rated power 520 W 511 W

Typical summer roof 55 °C 89.2% of rated power 491 W 482 W

Hot roof 70 °C 83.8% of rated power 461 W 453 W

Full specification

Parameter M550M-144 M540M-144 Difference

Power and efficiency

Rated power 550 Wp 540 Wp +10 W for M550M-144

Module efficiency 21.30 % 20.90 % +0.40 pp for M550M-144

Power density 212.8 Wp/m² 208.9 Wp/m² +3.9 Wp/m² for M550M-144

Open-circuit voltage 49.90 V 49.70 V Effectively the same

Voltage at max power 42.10 V 41.90 V Effectively the same

Short-circuit current 13.80 A 13.62 A Effectively the same

Current at max power 13.07 A 12.89 A Effectively the same

Temperature

Temperature coefficient -0.360 %/°C -0.360 %/°C Same

Mechanical

Dimensions 2279x1134x35 mm 2279x1134x35 mm Same

Module area 2.584 m² 2.584 m² Same

Weight 29.0 kg 29.0 kg Same

Weight per kWp 52.7 kg/kWp 53.7 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 25 yrs 25 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 No No Same

Against the whole database

14,129 panels

Efficiency

#8,585 vs #10,148

M550M-144 leads by 1,563 places

Power density

#8,709 vs #10,278

M550M-144 leads by 1,569 places

Heat behaviour

#12,425 vs #12,425

Tied - the same position in the database

Weight

#6,427 vs #7,781

M550M-144 leads by 1,354 places

Warranty

#9,912 vs #9,912

Tied - the same position in the database

Overall

#8,140 vs #9,021

M550M-144 leads by 881 places

More useful comparisons

Open the full database

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17 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: AIKO M550M-144 or AIKO M540M-144?

According to our database: AIKO M550M-144 has higher module efficiency (21.30% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of AIKO M550M-144 and AIKO M540M-144?

AIKO M550M-144 has a module efficiency of 21.30%, while AIKO M540M-144 is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does AIKO M550M-144 use vs AIKO M540M-144?

AIKO M550M-144 uses PERC cells; AIKO M540M-144 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 AIKO M550M-144 and AIKO M540M-144?

AIKO M550M-144 has a 25 years power warranty; AIKO M540M-144 has a 25 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 137 AIKO 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.