420W vs 415W 17 of 18 identical Swap Change panels

AE Solar CMD-108BDE-420W vs AE Solar CMD-108BDE-415W

Q: Which panel is better: AE Solar CMD-108BDE-420W or AE Solar CMD-108BDE-415W?

According to our database: AE Solar CMD-108BDE-420W has higher module efficiency (21.54% vs 21.28%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of AE Solar CMD-108BDE-420W and AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420W has a module efficiency of 21.54%, while AE Solar CMD-108BDE-415W is 21.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does AE Solar CMD-108BDE-420W use vs AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420W uses TOPCon cells; AE Solar CMD-108BDE-415W uses TOPCon. 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 CMD-108BDE-420W and AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420W has a 30 years power warranty; AE Solar CMD-108BDE-415W 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 CMD-108BDE-420W and AE Solar CMD-108BDE-415W bifacial panels?

Both AE Solar CMD-108BDE-420W and AE Solar CMD-108BDE-415W 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.

CMD-108BDE-420W

420 Wp 21.54 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

CMD-108BDE-415W

415 Wp 21.28 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

The verdict

420W leads on the differences that matter

The largest is module efficiency: 0.26 pp more efficient. 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

What actually differs

1 of 18 parameters

Parameter 420W 415W Difference

Module efficiency 21.54 % 21.28 % 0.26 pp more efficient

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

Cell temperature

Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

420W

14,092 kWh

415W

13,924 kWh

Lifetime gap

168 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 420W 415W

Standard test conditions 25 °C 100.0% of rated power 420 W 415 W

Cool, bright day 40 °C 95.7% of rated power 402 W 397 W

Typical summer roof 55 °C 91.3% of rated power 383 W 379 W

Hot roof 70 °C 87.0% of rated power 365 W 361 W

Full specification

Parameter 420W 415W Difference

Power and efficiency

Rated power 420 Wp 415 Wp Effectively the same

Module efficiency 21.54 % 21.28 % +0.26 pp for 420W

Power density 215.4 Wp/m² 212.8 Wp/m² Effectively the same

Open-circuit voltage 38.08 V 37.86 V Effectively the same

Voltage at max power 32.25 V 32.04 V Effectively the same

Short-circuit current 13.79 A 13.70 A Effectively the same

Current at max power 13.02 A 12.95 A Effectively the same

Temperature

Temperature coefficient -0.290 %/°C -0.290 %/°C Same

Mechanical

Dimensions 1721x1133x30 mm 1721x1133x30 mm Same

Module area 1.950 m² 1.950 m² Same

Weight 23.5 kg 23.5 kg Same

Weight per kWp 56.0 kg/kWp 56.6 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 TOPCon TOPCon Same

Cell type Monocrystalline Monocrystalline Same

Cell count 108 108 Same

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#7,823 vs #8,795

420W leads by 972 places

Power density

#7,783 vs #8,625

420W leads by 842 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#10,286 vs #10,752

420W leads by 466 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#7,399 vs #7,969

420W leads by 570 places

More useful comparisons

Open the full database

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AE Solar CMD-108BDE-420W vs AE Solar CMD-108BDE-425W

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AE Solar CMD-108BDE-420W vs AE Solar CME-132BDS-730

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AE Solar CMD-108BDE-420W vs AE Solar CME-132BDS-725

12 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: AE Solar CMD-108BDE-420W or AE Solar CMD-108BDE-415W?

According to our database: AE Solar CMD-108BDE-420 W has higher module efficiency (21.54% vs 21.28%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of AE Solar CMD-108BDE-420W and AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420 W has a module efficiency of 21.54%, while AE Solar CMD-108BDE-415 W is 21.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does AE Solar CMD-108BDE-420W use vs AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420 W uses TOPCon cells; AE Solar CMD-108BDE-415 W uses TOPCon. 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 CMD-108BDE-420W and AE Solar CMD-108BDE-415W?

AE Solar CMD-108BDE-420 W has a 30 years power warranty; AE Solar CMD-108BDE-415 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 CMD-108BDE-420W and AE Solar CMD-108BDE-415W bifacial panels?

Both AE Solar CMD-108BDE-420 W and AE Solar CMD-108BDE-415 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 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.