Aptos Solar DNA-144-BF10-545W-DG vs Aptos Solar DNA-144-BF26-450W
VS
The verdict
11 differences, and they point both ways
The largest is rated power: 95 W more power. 8 of 19 comparable parameters are identical.
See all 11 differencesHow alike are they
8
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
11 of 19 parameters
What actually differs
Parameter
BF10-545W-DG
BF26-450W
Difference
Rated power
545 Wp
450 Wp
95 W more power
Weight
32.3 kg
24.1 kg
8.2 kg lighter
Module efficiency
21.09 %
20.70 %
0.39 pp more efficient
Weight per kWp
59.3 kg/kWp
53.6 kg/kWp
5.7 kg/kWp lighter
Short-circuit current
13.92 A
11.52 A
2.40 A apart
Module area
2.583 m²
2.174 m²
0.410 m² apart
Temperature coefficient
-0.335 %/°C
-0.320 %/°C
0.015 %/°C better in heat
Power density
211.0 Wp/m²
207.0 Wp/m²
3.9 Wp/m² higher
Current at max power
12.38 A
10.93 A
1.45 A apart
Voltage at max power
44.00 V
41.20 V
2.80 V apart
Dimensions
2278x1134x35 mm
2094x1038x35 mm
2278x1134x35 mm vs 2094x1038x35 mm
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
BF10-545W-DG
17,697 kWh
BF26-450W
14,608 kWh
Lifetime gap
3,089 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
BF10-545W-DG
BF26-450W
Standard test conditions
25 °C
100.0% of rated power
545 W
450 W
Cool, bright day
40 °C
95.0% of rated power
518 W
428 W
Typical summer roof
55 °C
90.0% of rated power
490 W
407 W
Hot roof
70 °C
84.9% of rated power
463 W
385 W
03
Full specification
Parameter
BF10-545W-DG
BF26-450W
Difference
Power and efficiency
Rated power
545 Wp
450 Wp
+95 W for BF10-545W-DG
Module efficiency
21.09 %
20.70 %
+0.39 pp for BF10-545W-DG
Power density
211.0 Wp/m²
207.0 Wp/m²
+3.9 Wp/m² for BF10-545W-DG
Open-circuit voltage
49.65 V
49.40 V
Effectively the same
Voltage at max power
44.00 V
41.20 V
2.80 V apart
Short-circuit current
13.92 A
11.52 A
2.40 A apart
Current at max power
12.38 A
10.93 A
1.45 A apart
Temperature
Temperature coefficient
-0.335 %/°C
-0.320 %/°C
+0.015 %/°C for BF26-450W
Mechanical
Dimensions
2278x1134x35 mm
2094x1038x35 mm
2278x1134x35 mm vs 2094x1038x35 mm
Module area
2.583 m²
2.174 m²
0.410 m² apart
Weight
32.3 kg
24.1 kg
-8.2 kg for BF26-450W
Weight per kWp
59.3 kg/kWp
53.6 kg/kWp
-5.7 kg/kWp for BF26-450W
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
14,129 panels
Against the whole database
Efficiency
#9,587
vs
#10,842
BF10-545W-DG leads by 1,255 places
Power density
#9,380
vs
#10,902
BF10-545W-DG leads by 1,522 places
Heat behaviour
#8,821
vs
#8,376
BF26-450W leads by 445 places
Weight
#12,183
vs
#7,623
BF26-450W leads by 4,560 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,698
vs
#7,413
BF10-545W-DG leads by 3,715 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Aptos Solar DNA-144-BF10-545W-DG or Aptos Solar DNA-144-BF26-450W?
According to our database: Aptos Solar DNA-144-BF10-545 W-DG has higher module efficiency (21.09% vs 20.70%); Aptos Solar DNA-144-BF26-450 W tolerates heat better (temp coeff -0.320%/°C vs -0.335%/°C). 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-BF26-450W?
Aptos Solar DNA-144-BF10-545 W-DG has a module efficiency of 21.09%, while Aptos Solar DNA-144-BF26-450 W is 20.70%. 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-BF26-450W?
Aptos Solar DNA-144-BF10-545 W-DG uses PERC cells; Aptos Solar DNA-144-BF26-450 W 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-BF26-450W?
Aptos Solar DNA-144-BF10-545 W-DG has a 30 years power warranty; Aptos Solar DNA-144-BF26-450 W 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-BF26-450W bifacial panels?
Both Aptos Solar DNA-144-BF10-545 W-DG and Aptos Solar DNA-144-BF26-450 W 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.