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DH108NA-440W vs DH108ND-455 9 of 18 identical Swap Change panels

DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108ND-455

DAS Solar
DAS-DH108NA-440W
440 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
DAS Solar
DAS-DH108ND-455
455 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

DH108ND-455 leads on the differences that matter

The largest is product warranty: 10 yrs longer. 9 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 9 differences
How alike are they
9 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 18 parameters
Parameter DH108NA-440W DH108ND-455 Difference
Product warranty 15 yrs 25 yrs 10 yrs longer
Temperature coefficient -0.300 %/°C -0.280 %/°C 0.020 %/°C better in heat
Module area 1.953 m² 2.041 m² 0.088 m² apart
Rated power 440 Wp 455 Wp 15 W more power
Module efficiency 22.50 % 22.30 % 0.20 pp more efficient
Weight 20.5 kg 21.7 kg 1.2 kg lighter
Short-circuit current 13.98 A 14.73 A 0.75 A apart
Dimensions 1722x1134x30 mm 1800x1134x30 mm 1722x1134x30 mm vs 1800x1134x30 mm
Current at max power 13.23 A 13.94 A 0.71 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
DH108NA-440W
14,763 kWh
DH108ND-455
15,266 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario DH108NA-440W DH108ND-455
Standard test conditions 25 °C 100.0% of rated power 440 W 455 W
Cool, bright day 40 °C 95.5% of rated power 420 W 436 W
Typical summer roof 55 °C 91.0% of rated power 400 W 417 W
Hot roof 70 °C 86.5% of rated power 381 W 398 W
03

Full specification

Parameter DH108NA-440W DH108ND-455 Difference
Power and efficiency
Rated power 440 Wp 455 Wp +15 W for DH108ND-455
Module efficiency 22.50 % 22.30 % +0.20 pp for DH108NA-440W
Power density 225.3 Wp/m² 222.9 Wp/m² Effectively the same
Open-circuit voltage 38.88 V 39.36 V Effectively the same
Voltage at max power 33.26 V 32.65 V Effectively the same
Short-circuit current 13.98 A 14.73 A 0.75 A apart
Current at max power 13.23 A 13.94 A 0.71 A apart
Temperature
Temperature coefficient -0.300 %/°C -0.280 %/°C +0.020 %/°C for DH108ND-455
Mechanical
Dimensions 1722x1134x30 mm 1800x1134x30 mm 1722x1134x30 mm vs 1800x1134x30 mm
Module area 1.953 m² 2.041 m² 0.088 m² apart
Weight 20.5 kg 21.7 kg -1.2 kg for DH108NA-440W
Weight per kWp 46.6 kg/kWp 47.7 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 25 yrs +10 yrs for DH108ND-455
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count - 108 Not published by DAS Solar
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,222 vs #5,100
DH108NA-440W leads by 878 places
Power density
#4,099 vs #5,100
DH108NA-440W leads by 1,001 places
Heat behaviour
#6,093 vs #1,309
DH108ND-455 leads by 4,784 places
Weight
#1,235 vs #1,811
DH108NA-440W leads by 576 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,664 vs #6,145
DH108ND-455 leads by 2,519 places
05

More useful comparisons

Open the full database
Same series, other bin
DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108ND-460
8 differences, the largest is product warranty
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DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108ND-450
10 differences, the largest is module efficiency
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DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108ND-445
10 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108NA-445W
One difference: module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108ND-440
10 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108NA-440W vs DAS Solar DAS-DH108NA-435
2 differences, the largest is product warranty
06

Written summary

07

Questions about this pairing

Which panel is better: DAS Solar DAS-DH108NA-440W or DAS Solar DAS-DH108ND-455?
According to our database: DAS Solar DAS-DH108NA-440 W has higher module efficiency (22.50% vs 22.30%); DAS Solar DAS-DH108ND-455 tolerates heat better (temp coeff -0.280%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of DAS Solar DAS-DH108NA-440W and DAS Solar DAS-DH108ND-455?
DAS Solar DAS-DH108NA-440 W has a module efficiency of 22.50%, while DAS Solar DAS-DH108ND-455 is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DAS Solar DAS-DH108NA-440W use vs DAS Solar DAS-DH108ND-455?
DAS Solar DAS-DH108NA-440 W uses TOPCon cells; DAS Solar DAS-DH108ND-455 uses TOPCon. 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 DAS Solar DAS-DH108NA-440W and DAS Solar DAS-DH108ND-455?
DAS Solar DAS-DH108NA-440 W has a 30 years power warranty; DAS Solar DAS-DH108ND-455 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 DAS Solar DAS-DH108NA-440W and DAS Solar DAS-DH108ND-455 bifacial panels?
Both DAS Solar DAS-DH108NA-440 W and DAS Solar DAS-DH108ND-455 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 4 DAS 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.