Aptos Solar DNA-144-BF10-545W-DG vs Aptos Solar DNA-144-BF10-540W-DG
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 (-0.335 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
545W-DG
17,697 kWh
540W-DG
17,535 kWh
Lifetime gap
162 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
545W-DG
540W-DG
Standard test conditions
25 °C
100.0% of rated power
545 W
540 W
Cool, bright day
40 °C
95.0% of rated power
518 W
513 W
Typical summer roof
55 °C
90.0% of rated power
490 W
486 W
Hot roof
70 °C
84.9% of rated power
463 W
459 W
03
Full specification
Parameter
545W-DG
540W-DG
Difference
Power and efficiency
Rated power
545 Wp
540 Wp
Effectively the same
Module efficiency
21.09 %
20.90 %
Effectively the same
Power density
211.0 Wp/m²
209.0 Wp/m²
Effectively the same
Open-circuit voltage
49.65 V
49.50 V
Effectively the same
Voltage at max power
44.00 V
43.84 V
Effectively the same
Short-circuit current
13.92 A
13.85 A
Effectively the same
Current at max power
12.38 A
12.32 A
Effectively the same
Temperature
Temperature coefficient
-0.335 %/°C
-0.335 %/°C
Same
Mechanical
Dimensions
2278x1134x35 mm
2278x1134x35 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
32.3 kg
32.3 kg
Same
Weight per kWp
59.3 kg/kWp
59.8 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
30 yrs
30 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.54 %/yr
0.54 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#9,519
vs
#10,072
545W-DG leads by 553 places
Power density
#9,312
vs
#10,100
545W-DG leads by 788 places
Heat behaviour
#8,753
vs
#8,753
Tied - the same position in the database
Weight
#12,093
vs
#12,294
545W-DG leads by 201 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,650
vs
#4,039
545W-DG leads by 389 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: Aptos Solar DNA-144-BF10-545W-DG or Aptos Solar DNA-144-BF10-540W-DG?
According to our database: Aptos Solar DNA-144-BF10-545 W-DG has higher module efficiency (21.09% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Aptos Solar DNA-144-BF10-545W-DG and Aptos Solar DNA-144-BF10-540W-DG?
Aptos Solar DNA-144-BF10-545 W-DG has a module efficiency of 21.09%, while Aptos Solar DNA-144-BF10-540 W-DG is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Aptos Solar DNA-144-BF10-545W-DG use vs Aptos Solar DNA-144-BF10-540W-DG?
Aptos Solar DNA-144-BF10-545 W-DG uses PERC cells; Aptos Solar DNA-144-BF10-540 W-DG 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 Aptos Solar DNA-144-BF10-545W-DG and Aptos Solar DNA-144-BF10-540W-DG?
Aptos Solar DNA-144-BF10-545 W-DG has a 30 years power warranty; Aptos Solar DNA-144-BF10-540 W-DG 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 Aptos Solar DNA-144-BF10-545W-DG and Aptos Solar DNA-144-BF10-540W-DG bifacial panels?
Both Aptos Solar DNA-144-BF10-545 W-DG and Aptos Solar DNA-144-BF10-540 W-DG 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.
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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.