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SPV535-PM10-144 vs SPV555-PM10-144 15 of 19 identical Swap Change panels

SpolarPV SPV535-PM10-144 vs SpolarPV SPV555-PM10-144

SpolarPV SPV535-PM10-144
SpolarPV
SPV535-PM10-144
535 Wp 20.73 % PERC
Open panel page Datasheet PDF
VS
SpolarPV SPV555-PM10-144
SpolarPV
SPV555-PM10-144
555 Wp 21.50 % PERC
Open panel page Datasheet PDF
The verdict

SPV555-PM10-144 leads on the differences that matter

The largest is module efficiency: 0.77 pp more efficient. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter SPV535-PM10-144 SPV555-PM10-144 Difference
Module efficiency 20.73 % 21.50 % 0.77 pp more efficient
Power density 207.3 Wp/m² 215.0 Wp/m² 7.7 Wp/m² higher
Rated power 535 Wp 555 Wp 20 W more power
Open-circuit voltage 49.78 V 51.79 V 2.01 V apart
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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPV535-PM10-144
17,618 kWh
SPV555-PM10-144
18,277 kWh
Lifetime gap
659 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SPV535-PM10-144 SPV555-PM10-144
Standard test conditions 25 °C 100.0% of rated power 535 W 555 W
Cool, bright day 40 °C 94.8% of rated power 507 W 526 W
Typical summer roof 55 °C 89.5% of rated power 479 W 497 W
Hot roof 70 °C 84.2% of rated power 451 W 468 W
03

Full specification

Parameter SPV535-PM10-144 SPV555-PM10-144 Difference
Power and efficiency
Rated power 535 Wp 555 Wp +20 W for SPV555-PM10-144
Module efficiency 20.73 % 21.50 % +0.77 pp for SPV555-PM10-144
Power density 207.3 Wp/m² 215.0 Wp/m² +7.7 Wp/m² for SPV555-PM10-144
Open-circuit voltage 49.78 V 51.79 V 2.01 V apart
Voltage at max power 41.94 V 42.75 V Effectively the same
Short-circuit current 13.52 A 13.74 A Effectively the same
Current at max power 12.75 A 12.98 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 49.5 kg/kWp 47.7 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.45 %/yr Same
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
#10,701 vs #7,958
SPV555-PM10-144 leads by 2,743 places
Power density
#10,731 vs #8,012
SPV555-PM10-144 leads by 2,719 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#3,074 vs #1,883
SPV555-PM10-144 leads by 1,191 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,124 vs #6,409
SPV555-PM10-144 leads by 1,715 places
05

More useful comparisons

Open the full database
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SpolarPV SPV535-PM10-144 vs SpolarPV SPV550-PM10-144
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The same specification on paper
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06

Written summary

07

Questions about this pairing

Which panel is better: SpolarPV SPV535-PM10-144 or SpolarPV SPV555-PM10-144?
According to our database: SpolarPV SPV555-PM10-144 has higher module efficiency (21.50% vs 20.73%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of SpolarPV SPV535-PM10-144 and SpolarPV SPV555-PM10-144?
SpolarPV SPV535-PM10-144 has a module efficiency of 20.73%, while SpolarPV SPV555-PM10-144 is 21.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does SpolarPV SPV535-PM10-144 use vs SpolarPV SPV555-PM10-144?
SpolarPV SPV535-PM10-144 uses PERC cells; SpolarPV SPV555-PM10-144 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 SpolarPV SPV535-PM10-144 and SpolarPV SPV555-PM10-144?
SpolarPV SPV535-PM10-144 has a 30 years power warranty; SpolarPV SPV555-PM10-144 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.

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.