SpolarPV SPV555-PM10-144 vs SpolarPV SPV550-PM10-144
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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.
SPV555-PM10-144
18,277 kWh
SPV550-PM10-144
18,112 kWh
Lifetime gap
165 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
SPV555-PM10-144
SPV550-PM10-144
Standard test conditions
25 °C
100.0% of rated power
555 W
550 W
Cool, bright day
40 °C
94.8% of rated power
526 W
521 W
Typical summer roof
55 °C
89.5% of rated power
497 W
492 W
Hot roof
70 °C
84.2% of rated power
468 W
463 W
03
Full specification
Parameter
SPV555-PM10-144
SPV550-PM10-144
Difference
Power and efficiency
Rated power
555 Wp
550 Wp
Effectively the same
Module efficiency
21.50 %
21.31 %
Effectively the same
Power density
215.0 Wp/m²
213.1 Wp/m²
Effectively the same
Open-circuit voltage
51.79 V
51.44 V
Effectively the same
Voltage at max power
42.75 V
42.57 V
Effectively the same
Short-circuit current
13.74 A
13.67 A
Effectively the same
Current at max power
12.98 A
12.93 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
47.7 kg/kWp
48.2 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
14,005 panels
Against the whole database
Efficiency
#7,958
vs
#8,503
SPV555-PM10-144 leads by 545 places
Power density
#8,012
vs
#8,474
SPV555-PM10-144 leads by 462 places
Heat behaviour
#10,419
vs
#10,419
Tied - the same position in the database
Weight
#1,883
vs
#2,087
SPV555-PM10-144 leads by 204 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#6,409
vs
#6,830
SPV555-PM10-144 leads by 421 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: SpolarPV SPV555-PM10-144 or SpolarPV SPV550-PM10-144?
According to our database: SpolarPV SPV555-PM10-144 has higher module efficiency (21.50% vs 21.31%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of SpolarPV SPV555-PM10-144 and SpolarPV SPV550-PM10-144?
SpolarPV SPV555-PM10-144 has a module efficiency of 21.50%, while SpolarPV SPV550-PM10-144 is 21.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does SpolarPV SPV555-PM10-144 use vs SpolarPV SPV550-PM10-144?
SpolarPV SPV555-PM10-144 uses PERC cells; SpolarPV SPV550-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 SPV555-PM10-144 and SpolarPV SPV550-PM10-144?
SpolarPV SPV555-PM10-144 has a 30 years power warranty; SpolarPV SPV550-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.