Axitec AC-440TGBL/108BB vs Axitec AC-455TGBL/108BB
VS
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 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
440TGBL/108BB
455TGBL/108BB
Difference
Module efficiency
22.02 %
22.77 %
0.75 pp more efficient
Power density
220.2 Wp/m²
227.7 Wp/m²
7.5 Wp/m² higher
Rated power
440 Wp
455 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.
440TGBL/108BB
14,763 kWh
455TGBL/108BB
15,266 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
440TGBL/108BB
455TGBL/108BB
Standard test conditions
25 °C
100.0% of rated power
440 W
455 W
Cool, bright day
40 °C
95.3% of rated power
420 W
434 W
Typical summer roof
55 °C
90.7% of rated power
399 W
413 W
Hot roof
70 °C
86.0% of rated power
379 W
392 W
03
Full specification
Parameter
440TGBL/108BB
455TGBL/108BB
Difference
Power and efficiency
Rated power
440 Wp
455 Wp
+15 W for 455TGBL/108BB
Module efficiency
22.02 %
22.77 %
+0.75 pp for 455TGBL/108BB
Power density
220.2 Wp/m²
227.7 Wp/m²
+7.5 Wp/m² for 455TGBL/108BB
Open-circuit voltage
39.42 V
40.28 V
Effectively the same
Voltage at max power
32.74 V
33.41 V
Effectively the same
Short-circuit current
14.13 A
14.31 A
Effectively the same
Current at max power
13.44 A
13.62 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
56.8 kg/kWp
54.9 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
14,005 panels
Against the whole database
Efficiency
#6,329
vs
#3,073
455TGBL/108BB leads by 3,256 places
Power density
#6,328
vs
#2,888
455TGBL/108BB leads by 3,440 places
Heat behaviour
#8,005
vs
#8,005
Tied - the same position in the database
Weight
#10,878
vs
#9,326
455TGBL/108BB leads by 1,552 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#6,090
vs
#4,754
455TGBL/108BB leads by 1,336 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Axitec AC-440TGBL/108BB or Axitec AC-455TGBL/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-440TGBL/108BB and Axitec AC-455TGBL/108BB?
Axitec AC-440TGBL/108BB has a module efficiency of 22.02%, while Axitec AC-455TGBL/108BB is 22.77%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Axitec AC-440TGBL/108BB use vs Axitec AC-455TGBL/108BB?
Axitec AC-440TGBL/108BB uses TOPCon cells; Axitec AC-455TGBL/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-440TGBL/108BB and Axitec AC-455TGBL/108BB?
Axitec AC-440TGBL/108BB has a 30 years power warranty; Axitec AC-455TGBL/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-440TGBL/108BB and Axitec AC-455TGBL/108BB bifacial panels?
Both Axitec AC-440TGBL/108BB and Axitec AC-455TGBL/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.