Solaria PowerXT 420R-PL vs Solaria Solaria PowerXT-420C-BD
VS
The verdict
PowerXT 420R-PL leads on the differences that matter
The largest is performance warranty: 5 yrs longer. 6 of 16 comparable parameters are identical, with 3 more left out because at least one datasheet does not publish them.
See all 10 differencesHow alike are they
6
of 16 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
10 of 16 parameters
What actually differs
Parameter
PowerXT 420R-PL
Solaria PowerXT-420C-BD
Difference
Performance warranty
30 yrs
25 yrs
5 yrs longer
Module efficiency
19.90 %
19.40 %
0.50 pp more efficient
Weight
21.7 kg
29.0 kg
7.3 kg lighter
Weight per kWp
51.7 kg/kWp
69.0 kg/kWp
17.4 kg/kWp lighter
Product warranty
30 yrs
25 yrs
5 yrs longer
Power density
198.9 Wp/m²
194.1 Wp/m²
4.8 Wp/m² higher
Module area
2.112 m²
2.164 m²
0.052 m² apart
Open-circuit voltage
45.70 V
47.40 V
1.70 V apart
Dimensions
1957x1079x35 mm
1939x1116x40 mm
1957x1079x35 mm vs 1939x1116x40 mm
Voltage at max power
37.90 V
39.10 V
1.20 V apart
02
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
Same temp coeff. for both panels (-0.390 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
PowerXT 420R-PL
14,092 kWh
Solaria PowerXT-420C-BD
14,092 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
PowerXT 420R-PL
Solaria PowerXT-420C-BD
Standard test conditions
25 °C
100.0% of rated power
420 W
420 W
Cool, bright day
40 °C
94.2% of rated power
395 W
395 W
Typical summer roof
55 °C
88.3% of rated power
371 W
371 W
Hot roof
70 °C
82.5% of rated power
346 W
346 W
03
Full specification
Parameter
PowerXT 420R-PL
Solaria PowerXT-420C-BD
Difference
Power and efficiency
Rated power
420 Wp
420 Wp
Same
Module efficiency
19.90 %
19.40 %
+0.50 pp for PowerXT 420R-PL
Power density
198.9 Wp/m²
194.1 Wp/m²
+4.8 Wp/m² for PowerXT 420R-PL
Open-circuit voltage
45.70 V
47.40 V
1.70 V apart
Voltage at max power
37.90 V
39.10 V
1.20 V apart
Short-circuit current
11.60 A
11.33 A
Effectively the same
Current at max power
11.09 A
10.77 A
Effectively the same
Temperature
Temperature coefficient
-0.390 %/°C
-0.390 %/°C
Same
Mechanical
Dimensions
1957x1079x35 mm
1939x1116x40 mm
1957x1079x35 mm vs 1939x1116x40 mm
Module area
2.112 m²
2.164 m²
0.052 m² apart
Weight
21.7 kg
29.0 kg
-7.3 kg for PowerXT 420R-PL
Weight per kWp
51.7 kg/kWp
69.0 kg/kWp
-17.4 kg/kWp for PowerXT 420R-PL
Warranty and degradation
Product warranty
30 yrs
25 yrs
+5 yrs for PowerXT 420R-PL
Performance warranty
30 yrs
25 yrs
+5 yrs for PowerXT 420R-PL
Annual degradation
0.48 %/yr
-
Not published by Solaria
Technology
Cell technology
-
-
Neither datasheet publishes this
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
-
-
Neither datasheet publishes this
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#12,331
vs
#12,735
PowerXT 420R-PL leads by 404 places
Power density
#12,344
vs
#12,726
PowerXT 420R-PL leads by 382 places
Heat behaviour
#13,579
vs
#13,579
Tied - the same position in the database
Weight
#5,023
vs
#13,359
PowerXT 420R-PL leads by 8,336 places
Warranty
#21
vs
#9,798
PowerXT 420R-PL leads by 9,777 places
Overall
#9,324
vs
#11,183
PowerXT 420R-PL leads by 1,859 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Solaria PowerXT 420R-PL or Solaria Solaria PowerXT-420C-BD?
According to our database: Solaria PowerXT 420R-PL has higher module efficiency (19.90% vs 19.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solaria PowerXT 420R-PL and Solaria Solaria PowerXT-420C-BD?
Solaria PowerXT 420R-PL has a module efficiency of 19.90%, while Solaria Solaria PowerXT-420C-BD is 19.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solaria PowerXT 420R-PL use vs Solaria Solaria PowerXT-420C-BD?
Solaria PowerXT 420R-PL uses Monocrystalline cells; Solaria Solaria PowerXT-420C-BD uses Monocrystalline. 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 Solaria PowerXT 420R-PL and Solaria Solaria PowerXT-420C-BD?
Solaria PowerXT 420R-PL has a 30 years power warranty; Solaria Solaria PowerXT-420C-BD 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 1 Solaria offer
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.