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

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

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

Full specification

Parameter DH108ND-455 DH108NA-440W Difference
Power and efficiency
Rated power 455 Wp 440 Wp +15 W for DH108ND-455
Module efficiency 22.30 % 22.50 % +0.20 pp for DH108NA-440W
Power density 222.9 Wp/m² 225.3 Wp/m² Effectively the same
Open-circuit voltage 39.36 V 38.88 V Effectively the same
Voltage at max power 32.65 V 33.26 V Effectively the same
Short-circuit current 14.73 A 13.98 A 0.75 A apart
Current at max power 13.94 A 13.23 A 0.71 A apart
Temperature
Temperature coefficient -0.280 %/°C -0.300 %/°C +0.020 %/°C for DH108ND-455
Mechanical
Dimensions 1800x1134x30 mm 1722x1134x30 mm 1800x1134x30 mm vs 1722x1134x30 mm
Module area 2.041 m² 1.953 m² 0.088 m² apart
Weight 21.7 kg 20.5 kg -1.2 kg for DH108NA-440W
Weight per kWp 47.7 kg/kWp 46.6 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 15 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
#5,100 vs #4,222
DH108NA-440W leads by 878 places
Power density
#5,100 vs #4,099
DH108NA-440W leads by 1,001 places
Heat behaviour
#1,309 vs #6,093
DH108ND-455 leads by 4,784 places
Weight
#1,811 vs #1,235
DH108NA-440W leads by 576 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,145 vs #8,664
DH108ND-455 leads by 2,519 places
05

More useful comparisons

Open the full database
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108ND-460
One difference: module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108ND-450
One difference: module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108ND-445
3 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108NA-445W
10 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108ND-440
3 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108NA-435
7 differences, the largest is temperature coefficient
06

Written summary

07

Questions about this pairing

Which panel is better: DAS Solar DAS-DH108ND-455 or DAS Solar DAS-DH108NA-440W?
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-DH108ND-455 and DAS Solar DAS-DH108NA-440W?
DAS Solar DAS-DH108ND-455 has a module efficiency of 22.30%, while DAS Solar DAS-DH108NA-440 W is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DAS Solar DAS-DH108ND-455 use vs DAS Solar DAS-DH108NA-440W?
DAS Solar DAS-DH108ND-455 uses TOPCon cells; DAS Solar DAS-DH108NA-440 W 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-DH108ND-455 and DAS Solar DAS-DH108NA-440W?
DAS Solar DAS-DH108ND-455 has a 30 years power warranty; DAS Solar DAS-DH108NA-440 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 DAS Solar DAS-DH108ND-455 and DAS Solar DAS-DH108NA-440W bifacial panels?
Both DAS Solar DAS-DH108ND-455 and DAS Solar DAS-DH108NA-440 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.