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455TGBL/108BB vs 440TGBL/108BB 16 of 19 identical Swap Change panels

Axitec AC-455TGBL/108BB vs Axitec AC-440TGBL/108BB

Axitec
AC-455TGBL/108BB
455 Wp 22.77 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Axitec
AC-440TGBL/108BB
440 Wp 22.02 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

455TGBL/108BB leads on the differences that matter

The largest is module efficiency: 0.75 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 455TGBL/108BB 440TGBL/108BB Difference
Module efficiency 22.77 % 22.02 % 0.75 pp more efficient
Power density 227.7 Wp/m² 220.2 Wp/m² 7.5 Wp/m² higher
Rated power 455 Wp 440 Wp 15 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.
455TGBL/108BB
15,266 kWh
440TGBL/108BB
14,763 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 455TGBL/108BB 440TGBL/108BB
Standard test conditions 25 °C 100.0% of rated power 455 W 440 W
Cool, bright day 40 °C 95.3% of rated power 434 W 420 W
Typical summer roof 55 °C 90.7% of rated power 413 W 399 W
Hot roof 70 °C 86.0% of rated power 392 W 379 W
03

Full specification

Parameter 455TGBL/108BB 440TGBL/108BB Difference
Power and efficiency
Rated power 455 Wp 440 Wp +15 W for 455TGBL/108BB
Module efficiency 22.77 % 22.02 % +0.75 pp for 455TGBL/108BB
Power density 227.7 Wp/m² 220.2 Wp/m² +7.5 Wp/m² for 455TGBL/108BB
Open-circuit voltage 40.28 V 39.42 V Effectively the same
Voltage at max power 33.41 V 32.74 V Effectively the same
Short-circuit current 14.31 A 14.13 A Effectively the same
Current at max power 13.62 A 13.44 A Effectively the same
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 25.0 kg 25.0 kg Same
Weight per kWp 54.9 kg/kWp 56.8 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

14,005 panels
Efficiency
#3,073 vs #6,329
455TGBL/108BB leads by 3,256 places
Power density
#2,888 vs #6,328
455TGBL/108BB leads by 3,440 places
Heat behaviour
#8,005 vs #8,005
Tied - the same position in the database
Weight
#9,326 vs #10,878
455TGBL/108BB leads by 1,552 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,754 vs #6,090
455TGBL/108BB leads by 1,336 places
05

More useful comparisons

Open the full database
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Axitec AC-455TGBL/108BB vs Axitec AC-450TGBL/108BB
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Axitec AC-455TGBL/108BB vs Axitec AC-445TGBL/108BB
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Axitec AC-455TGBL/108BB vs Axitec AC-700TGB/132TS
10 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Axitec AC-455TGBL/108BB or Axitec AC-440TGBL/108BB?
According to our database: Axitec AC-455TGBL/108BB has higher module efficiency (22.77% vs 22.02%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Axitec AC-455TGBL/108BB and Axitec AC-440TGBL/108BB?
Axitec AC-455TGBL/108BB has a module efficiency of 22.77%, while Axitec AC-440TGBL/108BB is 22.02%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Axitec AC-455TGBL/108BB use vs Axitec AC-440TGBL/108BB?
Axitec AC-455TGBL/108BB uses TOPCon cells; Axitec AC-440TGBL/108BB 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-455TGBL/108BB and Axitec AC-440TGBL/108BB?
Axitec AC-455TGBL/108BB has a 30 years power warranty; Axitec AC-440TGBL/108BB 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-455TGBL/108BB and Axitec AC-440TGBL/108BB bifacial panels?
Both Axitec AC-455TGBL/108BB and Axitec AC-440TGBL/108BB 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 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.