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455 vs 445 16 of 19 identical Swap Change panels

DAS Solar DAS-DH108ND-455 vs DAS Solar DAS-DH108ND-445

DAS Solar
DAS-DH108ND-455
455 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
DAS Solar
DAS-DH108ND-445
445 Wp 21.80 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

455 leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 455 445 Difference
Module efficiency 22.30 % 21.80 % 0.50 pp more efficient
Power density 222.9 Wp/m² 218.0 Wp/m² 4.9 Wp/m² higher
Rated power 455 Wp 445 Wp 10 W more power
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
Same temp coeff. for both panels (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
455
15,266 kWh
445
14,931 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 455 445
Standard test conditions 25 °C 100.0% of rated power 455 W 445 W
Cool, bright day 40 °C 95.8% of rated power 436 W 426 W
Typical summer roof 55 °C 91.6% of rated power 417 W 408 W
Hot roof 70 °C 87.4% of rated power 398 W 389 W
03

Full specification

Parameter 455 445 Difference
Power and efficiency
Rated power 455 Wp 445 Wp +10 W for 455
Module efficiency 22.30 % 21.80 % +0.50 pp for 455
Power density 222.9 Wp/m² 218.0 Wp/m² +4.9 Wp/m² for 455
Open-circuit voltage 39.36 V 39.00 V Effectively the same
Voltage at max power 32.65 V 32.28 V Effectively the same
Short-circuit current 14.73 A 14.63 A Effectively the same
Current at max power 13.94 A 13.79 A Effectively the same
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 1800x1134x30 mm 1800x1134x30 mm Same
Module area 2.041 m² 2.041 m² Same
Weight 21.7 kg 21.7 kg Same
Weight per kWp 47.7 kg/kWp 48.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
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 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #7,022
455 leads by 1,922 places
Power density
#5,100 vs #7,007
455 leads by 1,907 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#1,811 vs #2,451
455 leads by 640 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,145 vs #7,173
455 leads by 1,028 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-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-440W
9 differences, the largest is product warranty
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-DH108ND-445?
According to our database: DAS Solar DAS-DH108ND-455 has higher module efficiency (22.30% vs 21.80%). 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-DH108ND-445?
DAS Solar DAS-DH108ND-455 has a module efficiency of 22.30%, while DAS Solar DAS-DH108ND-445 is 21.80%. 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-DH108ND-445?
DAS Solar DAS-DH108ND-455 uses TOPCon cells; DAS Solar DAS-DH108ND-445 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-DH108ND-445?
DAS Solar DAS-DH108ND-455 has a 30 years power warranty; DAS Solar DAS-DH108ND-445 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-DH108ND-445 bifacial panels?
Both DAS Solar DAS-DH108ND-455 and DAS Solar DAS-DH108ND-445 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.