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144-BF10-540W-DG vs 120-BF10-460W 7 of 19 identical Swap Change panels

Aptos Solar DNA-144-BF10-540W-DG vs Aptos Solar DNA-120-BF10-460W

Aptos Solar DNA-144-BF10-540W-DG
Aptos Solar
DNA-144-BF10-540W-DG
540 Wp 20.90 % PERC Bifacial
Open panel page Datasheet PDF
VS
Aptos Solar DNA-120-BF10-460W
Aptos Solar
DNA-120-BF10-460W
460 Wp 21.26 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

120-BF10-460W leads on the differences that matter

The largest is rated power: 80 W more power. 7 of 19 comparable parameters are identical.

See all 12 differences
How alike are they
7 of 19 comparable
parameters are identical
identical differs
01

What actually differs

12 of 19 parameters
Parameter 144-BF10-540W-DG 120-BF10-460W Difference
Rated power 540 Wp 460 Wp 80 W more power
Weight 32.3 kg 22.8 kg 9.5 kg lighter
Weight per kWp 59.8 kg/kWp 49.5 kg/kWp 10.3 kg/kWp lighter
Module efficiency 20.90 % 21.26 % 0.36 pp more efficient
Open-circuit voltage 49.50 V 41.18 V 8.32 V apart
Module area 2.583 m² 2.164 m² 0.420 m² apart
Temperature coefficient -0.335 %/°C -0.350 %/°C 0.015 %/°C better in heat
Power density 209.0 Wp/m² 212.6 Wp/m² 3.6 Wp/m² higher
Voltage at max power 43.84 V 35.40 V 8.44 V apart
Cell count 144 120 24 cells apart
Dimensions 2278x1134x35 mm 1908x1134x35 mm 2278x1134x35 mm vs 1908x1134x35 mm
Current at max power 12.32 A 12.99 A 0.67 A 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
144-BF10-540W-DG
17,535 kWh
120-BF10-460W
14,932 kWh
Lifetime gap
2,603 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 144-BF10-540W-DG 120-BF10-460W
Standard test conditions 25 °C 100.0% of rated power 540 W 460 W
Cool, bright day 40 °C 94.8% of rated power 513 W 436 W
Typical summer roof 55 °C 89.5% of rated power 486 W 412 W
Hot roof 70 °C 84.2% of rated power 459 W 388 W
03

Full specification

Parameter 144-BF10-540W-DG 120-BF10-460W Difference
Power and efficiency
Rated power 540 Wp 460 Wp +80 W for 144-BF10-540W-DG
Module efficiency 20.90 % 21.26 % +0.36 pp for 120-BF10-460W
Power density 209.0 Wp/m² 212.6 Wp/m² +3.6 Wp/m² for 120-BF10-460W
Open-circuit voltage 49.50 V 41.18 V 8.32 V apart
Voltage at max power 43.84 V 35.40 V 8.44 V apart
Short-circuit current 13.85 A 14.01 A Effectively the same
Current at max power 12.32 A 12.99 A 0.67 A apart
Temperature
Temperature coefficient -0.335 %/°C -0.350 %/°C +0.015 %/°C for 144-BF10-540W-DG
Mechanical
Dimensions 2278x1134x35 mm 1908x1134x35 mm 2278x1134x35 mm vs 1908x1134x35 mm
Module area 2.583 m² 2.164 m² 0.420 m² apart
Weight 32.3 kg 22.8 kg -9.5 kg for 120-BF10-460W
Weight per kWp 59.8 kg/kWp 49.5 kg/kWp -10.3 kg/kWp for 120-BF10-460W
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 144 120 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#10,072 vs #8,894
120-BF10-460W leads by 1,178 places
Power density
#10,100 vs #8,778
120-BF10-460W leads by 1,322 places
Heat behaviour
#8,753 vs #10,419
144-BF10-540W-DG leads by 1,666 places
Weight
#12,294 vs #3,041
120-BF10-460W leads by 9,253 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,039 vs #6,187
144-BF10-540W-DG leads by 2,148 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Aptos Solar DNA-144-BF10-540W-DG or Aptos Solar DNA-120-BF10-460W?
According to our database: Aptos Solar DNA-120-BF10-460 W has higher module efficiency (21.26% vs 20.90%); Aptos Solar DNA-144-BF10-540 W-DG tolerates heat better (temp coeff -0.335%/°C vs -0.350%/°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-BF10-540W-DG and Aptos Solar DNA-120-BF10-460W?
Aptos Solar DNA-144-BF10-540 W-DG has a module efficiency of 20.90%, while Aptos Solar DNA-120-BF10-460 W is 21.26%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Aptos Solar DNA-144-BF10-540W-DG use vs Aptos Solar DNA-120-BF10-460W?
Aptos Solar DNA-144-BF10-540 W-DG uses PERC cells; Aptos Solar DNA-120-BF10-460 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-BF10-540W-DG and Aptos Solar DNA-120-BF10-460W?
Aptos Solar DNA-144-BF10-540 W-DG has a 30 years power warranty; Aptos Solar DNA-120-BF10-460 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-BF10-540W-DG and Aptos Solar DNA-120-BF10-460W bifacial panels?
Both Aptos Solar DNA-144-BF10-540 W-DG and Aptos Solar DNA-120-BF10-460 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.

Shop prices: See 8 Aptos Solar offers

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.