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415-R vs 425-R 16 of 19 identical Swap Change panels

Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-425-R

Maxeon SPR-MAX3-415-R
Maxeon
SPR-MAX3-415-R
415 Wp 21.90 % Back Contact
Open panel page Datasheet PDF
VS
Maxeon SPR-MAX3-425-R
Maxeon
SPR-MAX3-425-R
425 Wp 22.40 % Back Contact
Open panel page Datasheet PDF
The verdict

425-R leads on the differences that matter

The largest is module efficiency: 0.50 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
01

What actually differs

3 of 19 parameters
Parameter 415-R 425-R Difference
Module efficiency 21.90 % 22.40 % 0.50 pp more efficient
Power density 219.0 Wp/m² 224.2 Wp/m² 5.3 Wp/m² higher
Rated power 415 Wp 425 Wp 10 W more power
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.270 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
415-R
14,100 kWh
425-R
14,439 kWh
Lifetime gap
339 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 415-R 425-R
Standard test conditions 25 °C 100.0% of rated power 415 W 425 W
Cool, bright day 40 °C 96.0% of rated power 398 W 408 W
Typical summer roof 55 °C 91.9% of rated power 381 W 391 W
Hot roof 70 °C 87.8% of rated power 365 W 373 W
03

Full specification

Parameter 415-R 425-R Difference
Power and efficiency
Rated power 415 Wp 425 Wp +10 W for 425-R
Module efficiency 21.90 % 22.40 % +0.50 pp for 425-R
Power density 219.0 Wp/m² 224.2 Wp/m² +5.3 Wp/m² for 425-R
Open-circuit voltage 40.60 V 40.70 V Effectively the same
Voltage at max power 34.50 V 34.90 V Effectively the same
Short-circuit current 13.10 A 13.13 A Effectively the same
Current at max power 12.03 A 12.18 A Effectively the same
Temperature
Temperature coefficient -0.270 %/°C -0.270 %/°C Same
Mechanical
Dimensions 1812x1046x40 mm 1812x1046x40 mm Same
Module area 1.895 m² 1.895 m² Same
Weight 21.2 kg 21.2 kg Same
Weight per kWp 51.1 kg/kWp 49.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 40 yrs 40 yrs Same
Performance warranty 40 yrs 40 yrs Same
Annual degradation 0.25 %/yr 0.25 %/yr Same
Technology
Cell technology Back Contact Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 112 112 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#6,783 vs #4,774
425-R leads by 2,009 places
Power density
#6,789 vs #4,759
425-R leads by 2,030 places
Heat behaviour
#1,280 vs #1,280
Tied - the same position in the database
Weight
#4,418 vs #3,266
425-R leads by 1,152 places
Warranty
#1 vs #1
Tied - the same position in the database
Overall
#2,872 vs #2,122
425-R leads by 750 places
05

More useful comparisons

Open the full database
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Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-430-R
3 differences, the largest is module efficiency
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Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-400-COM
12 differences, the largest is module efficiency
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Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-390-COM
11 differences, the largest is rated power
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Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-380-COM
11 differences, the largest is rated power
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Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-375-BLK
11 differences, the largest is module efficiency
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Maxeon
Maxeon SPR-MAX3-415-R vs Maxeon SPR-MAX3-370-COM
13 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Maxeon SPR-MAX3-415-R or Maxeon SPR-MAX3-425-R?
According to our database: Maxeon SPR-MAX3-425-R has higher module efficiency (22.40% vs 21.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Maxeon SPR-MAX3-415-R and Maxeon SPR-MAX3-425-R?
Maxeon SPR-MAX3-415-R has a module efficiency of 21.90%, while Maxeon SPR-MAX3-425-R is 22.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Maxeon SPR-MAX3-415-R use vs Maxeon SPR-MAX3-425-R?
Maxeon SPR-MAX3-415-R uses Back Contact cells; Maxeon SPR-MAX3-425-R uses Back Contact. 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 Maxeon SPR-MAX3-415-R and Maxeon SPR-MAX3-425-R?
Maxeon SPR-MAX3-415-R has a 40 years power warranty; Maxeon SPR-MAX3-425-R has a 40 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 26 Maxeon 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.