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445TGB/108WB vs 455TGB/108WB 16 of 19 identical Swap Change panels

Axitec AC-445TGB/108WB vs Axitec AC-455TGB/108WB

Axitec
AC-445TGB/108WB
445 Wp 21.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Axitec
AC-455TGB/108WB
455 Wp 22.29 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

455TGB/108WB leads on the differences that matter

The largest is module efficiency: 0.49 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 445TGB/108WB 455TGB/108WB Difference
Module efficiency 21.80 % 22.29 % 0.49 pp more efficient
Power density 218.0 Wp/m² 222.9 Wp/m² 4.9 Wp/m² higher
Rated power 445 Wp 455 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 (-0.310 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
445TGB/108WB
14,931 kWh
455TGB/108WB
15,266 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 445TGB/108WB 455TGB/108WB
Standard test conditions 25 °C 100.0% of rated power 445 W 455 W
Cool, bright day 40 °C 95.3% of rated power 424 W 434 W
Typical summer roof 55 °C 90.7% of rated power 404 W 413 W
Hot roof 70 °C 86.0% of rated power 383 W 392 W
03

Full specification

Parameter 445TGB/108WB 455TGB/108WB Difference
Power and efficiency
Rated power 445 Wp 455 Wp +10 W for 455TGB/108WB
Module efficiency 21.80 % 22.29 % +0.49 pp for 455TGB/108WB
Power density 218.0 Wp/m² 222.9 Wp/m² +4.9 Wp/m² for 455TGB/108WB
Open-circuit voltage 39.12 V 39.68 V Effectively the same
Voltage at max power 32.49 V 32.98 V Effectively the same
Short-circuit current 14.40 A 14.51 A Effectively the same
Current at max power 13.70 A 13.80 A Effectively the same
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 1800x1134x30 mm 1800x1134x30 mm Same
Module area 2.041 m² 2.041 m² Same
Weight 25.3 kg 25.3 kg Same
Weight per kWp 56.9 kg/kWp 55.6 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 30 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

14,129 panels
Efficiency
#7,085 vs #5,439
455TGB/108WB leads by 1,646 places
Power density
#7,070 vs #5,162
455TGB/108WB leads by 1,908 places
Heat behaviour
#8,069 vs #8,069
Tied - the same position in the database
Weight
#10,989 vs #10,071
455TGB/108WB leads by 918 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,260 vs #5,309
455TGB/108WB leads by 951 places
05

More useful comparisons

Open the full database
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Axitec AC-445TGB/108WB vs Axitec AC-460TGB/108WB
3 differences, the largest is module efficiency
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Axitec AC-445TGB/108WB vs Axitec AC-710TGB/132TS
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Axitec AC-445TGB/108WB vs Axitec AC-705TGB/132TS
12 differences, the largest is module efficiency
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Axitec AC-445TGB/108WB vs Axitec AC-700TGB/132TS
12 differences, the largest is module efficiency
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Axitec AC-445TGB/108WB vs Axitec AC-695TGB/132TS
12 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Axitec AC-445TGB/108WB or Axitec AC-455TGB/108WB?
According to our database: Axitec AC-455TGB/108WB has higher module efficiency (22.29% vs 21.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Axitec AC-445TGB/108WB and Axitec AC-455TGB/108WB?
Axitec AC-445TGB/108WB has a module efficiency of 21.80%, while Axitec AC-455TGB/108WB is 22.29%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Axitec AC-445TGB/108WB use vs Axitec AC-455TGB/108WB?
Axitec AC-445TGB/108WB uses TOPCon cells; Axitec AC-455TGB/108WB 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 Axitec AC-445TGB/108WB and Axitec AC-455TGB/108WB?
Axitec AC-445TGB/108WB has a 30 years power warranty; Axitec AC-455TGB/108WB 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 Axitec AC-445TGB/108WB and Axitec AC-455TGB/108WB bifacial panels?
Both Axitec AC-445TGB/108WB and Axitec AC-455TGB/108WB 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 3 Axitec 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.