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Bi-55-540 vs DNA-144-BF10-540W-DG 14 of 19 identical Swap Change panels

Waaree Bi-55-540 vs Aptos Solar DNA-144-BF10-540W-DG

Waaree Bi-55-540
Bi-55-540
540 Wp 20.98 % PERC Bifacial
Open panel page Datasheet PDF
VS
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
The verdict

DNA-144-BF10-540W-DG leads on the differences that matter

The largest is product warranty: 18 yrs longer. 14 of 19 comparable parameters are identical.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs
01

What actually differs

5 of 19 parameters
Parameter Bi-55-540 DNA-144-BF10-540W-DG Difference
Product warranty 12 yrs 30 yrs 18 yrs longer
Temperature coefficient -0.350 %/°C -0.335 %/°C 0.015 %/°C better in heat
Voltage at max power 41.75 V 43.84 V 2.09 V apart
Dimensions 2272x1133x35 mm 2278x1134x35 mm 2272x1133x35 mm vs 2278x1134x35 mm
Current at max power 12.95 A 12.32 A 0.63 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
Bi-55-540
17,501 kWh
DNA-144-BF10-540W-DG
17,535 kWh
Lifetime gap
34 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario Bi-55-540 DNA-144-BF10-540W-DG
Standard test conditions 25 °C 100.0% of rated power 540 W 540 W
Cool, bright day 40 °C 94.8% of rated power 512 W 513 W
Typical summer roof 55 °C 89.5% of rated power 483 W 486 W
Hot roof 70 °C 84.2% of rated power 455 W 459 W
03

Full specification

Parameter Bi-55-540 DNA-144-BF10-540W-DG Difference
Power and efficiency
Rated power 540 Wp 540 Wp Same
Module efficiency 20.98 % 20.90 % Effectively the same
Power density 209.8 Wp/m² 209.0 Wp/m² Effectively the same
Open-circuit voltage 49.61 V 49.50 V Effectively the same
Voltage at max power 41.75 V 43.84 V 2.09 V apart
Short-circuit current 13.83 A 13.85 A Effectively the same
Current at max power 12.95 A 12.32 A 0.63 A apart
Temperature
Temperature coefficient -0.350 %/°C -0.335 %/°C +0.015 %/°C for DNA-144-BF10-540W-DG
Mechanical
Dimensions 2272x1133x35 mm 2278x1134x35 mm 2272x1133x35 mm vs 2278x1134x35 mm
Module area 2.574 m² 2.583 m² Effectively the same
Weight 32.5 kg 32.3 kg Effectively the same
Weight per kWp 60.2 kg/kWp 59.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 30 yrs +18 yrs for DNA-144-BF10-540W-DG
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.55 %/yr 0.54 %/yr Effectively the same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#9,963 vs #10,072
Bi-55-540 leads by 109 places
Power density
#9,905 vs #10,100
Bi-55-540 leads by 195 places
Heat behaviour
#10,419 vs #8,753
DNA-144-BF10-540W-DG leads by 1,666 places
Weight
#12,384 vs #12,294
DNA-144-BF10-540W-DG leads by 90 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,782 vs #4,039
DNA-144-BF10-540W-DG leads by 3,743 places
05

More useful comparisons

Open the full database
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-68-665
12 differences, the largest is rated power
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-68-660
10 differences, the largest is rated power
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-68-655
10 differences, the largest is rated power
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-68-650
10 differences, the largest is rated power
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-68-645
12 differences, the largest is rated power
Same series, other bin
Waaree Bi-55-540 vs Waaree Bi-66-600
10 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Waaree Bi-55-540 or Aptos Solar DNA-144-BF10-540W-DG?
According to our database: Waaree Bi-55-540 has higher module efficiency (20.98% 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 Waaree Bi-55-540 and Aptos Solar DNA-144-BF10-540W-DG?
Waaree Bi-55-540 has a module efficiency of 20.98%, 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 Waaree Bi-55-540 use vs Aptos Solar DNA-144-BF10-540W-DG?
Waaree Bi-55-540 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 Waaree Bi-55-540 and Aptos Solar DNA-144-BF10-540W-DG?
Waaree Bi-55-540 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 Waaree Bi-55-540 and Aptos Solar DNA-144-BF10-540W-DG bifacial panels?
Both Waaree Bi-55-540 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.
Compare Waaree and Aptos Solar as manufacturers Portfolio, efficiency, cell technologies and warranty terms

Shop prices: See 26 Waaree offers · 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.