Axitec AC-620TGB/132TS vs Axitec AC-440TGBL/108BB
VS
The verdict
620TGB/132TS leads on the differences that matter
The largest is module efficiency: 0.93 pp more efficient. 6 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 12 differencesHow alike are they
6
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
12 of 18 parameters
What actually differs
Parameter
620TGB/132TS
440TGBL/108BB
Difference
Module efficiency
22.95 %
22.02 %
0.93 pp more efficient
Rated power
620 Wp
440 Wp
180 W more power
Power density
229.5 Wp/m²
220.2 Wp/m²
9.3 Wp/m² higher
Weight
32.5 kg
25.0 kg
7.5 kg lighter
Open-circuit voltage
48.32 V
39.42 V
8.90 V apart
Short-circuit current
16.24 A
14.13 A
2.11 A apart
Module area
2.701 m²
1.998 m²
0.703 m² apart
Weight per kWp
52.4 kg/kWp
56.8 kg/kWp
4.4 kg/kWp lighter
Voltage at max power
40.61 V
32.74 V
7.87 V apart
Cell count
132
108
24 cells apart
Current at max power
15.27 A
13.44 A
1.83 A apart
Dimensions
2382x1134x30 mm
1762x1134x30 mm
2382x1134x30 mm vs 1762x1134x30 mm
02
What it means on a roof
Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, 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.
620TGB/132TS
20,802 kWh
440TGBL/108BB
14,763 kWh
Lifetime gap
6,039 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
620TGB/132TS
440TGBL/108BB
Standard test conditions
25 °C
100.0% of rated power
620 W
440 W
Cool, bright day
40 °C
95.3% of rated power
591 W
420 W
Typical summer roof
55 °C
90.7% of rated power
562 W
399 W
Hot roof
70 °C
86.0% of rated power
534 W
379 W
03
Full specification
Parameter
620TGB/132TS
440TGBL/108BB
Difference
Power and efficiency
Rated power
620 Wp
440 Wp
+180 W for 620TGB/132TS
Module efficiency
22.95 %
22.02 %
+0.93 pp for 620TGB/132TS
Power density
229.5 Wp/m²
220.2 Wp/m²
+9.3 Wp/m² for 620TGB/132TS
Open-circuit voltage
48.32 V
39.42 V
8.90 V apart
Voltage at max power
40.61 V
32.74 V
7.87 V apart
Short-circuit current
16.24 A
14.13 A
2.11 A apart
Current at max power
15.27 A
13.44 A
1.83 A apart
Temperature
Temperature coefficient
-0.310 %/°C
-0.310 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
1762x1134x30 mm
2382x1134x30 mm vs 1762x1134x30 mm
Module area
2.701 m²
1.998 m²
0.703 m² apart
Weight
32.5 kg
25.0 kg
-7.5 kg for 440TGBL/108BB
Weight per kWp
52.4 kg/kWp
56.8 kg/kWp
-4.4 kg/kWp for 620TGB/132TS
Warranty and degradation
Product warranty
30 yrs
30 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
-
0.40 %/yr
Not published by Axitec
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
108
24 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#2,320
vs
#6,392
620TGB/132TS leads by 4,072 places
Power density
#2,243
vs
#6,391
620TGB/132TS leads by 4,148 places
Heat behaviour
#8,069
vs
#8,069
Tied - the same position in the database
Weight
#5,938
vs
#10,964
620TGB/132TS leads by 5,026 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#578
vs
#6,151
620TGB/132TS leads by 5,573 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-620TGB/132TS or Axitec AC-440TGBL/108BB?
According to our database: Axitec AC-620TGB/132TS has higher module efficiency (22.95% 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-620TGB/132TS and Axitec AC-440TGBL/108BB?
Axitec AC-620TGB/132TS has a module efficiency of 22.95%, 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-620TGB/132TS use vs Axitec AC-440TGBL/108BB?
Axitec AC-620TGB/132TS 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-620TGB/132TS and Axitec AC-440TGBL/108BB?
Axitec AC-620TGB/132TS 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-620TGB/132TS and Axitec AC-440TGBL/108BB bifacial panels?
Both Axitec AC-620TGB/132TS 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 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.