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700TGB/132TS vs 450TGBL/108BB 10 of 19 identical Swap Change panels

Axitec AC-700TGB/132TS vs Axitec AC-450TGBL/108BB

Axitec
AC-700TGB/132TS
700 Wp 22.53 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Axitec
AC-450TGBL/108BB
450 Wp 22.52 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is rated power: 250 W more power. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter 700TGB/132TS 450TGBL/108BB Difference
Rated power 700 Wp 450 Wp 250 W more power
Weight 38.0 kg 25.0 kg 13.0 kg lighter
Open-circuit voltage 48.13 V 39.98 V 8.15 V apart
Short-circuit current 18.41 A 14.25 A 4.16 A apart
Module area 3.106 m² 1.998 m² 1.108 m² apart
Voltage at max power 40.44 V 33.24 V 7.20 V apart
Current at max power 17.31 A 13.54 A 3.77 A apart
Cell count 132 108 24 cells apart
Dimensions 2384x1303x35 mm 1762x1134x30 mm 2384x1303x35 mm vs 1762x1134x30 mm
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.
700TGB/132TS
23,486 kWh
450TGBL/108BB
15,098 kWh
Lifetime gap
8,388 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 700TGB/132TS 450TGBL/108BB
Standard test conditions 25 °C 100.0% of rated power 700 W 450 W
Cool, bright day 40 °C 95.3% of rated power 667 W 429 W
Typical summer roof 55 °C 90.7% of rated power 635 W 408 W
Hot roof 70 °C 86.0% of rated power 602 W 387 W
03

Full specification

Parameter 700TGB/132TS 450TGBL/108BB Difference
Power and efficiency
Rated power 700 Wp 450 Wp +250 W for 700TGB/132TS
Module efficiency 22.53 % 22.52 % Effectively the same
Power density 225.3 Wp/m² 225.2 Wp/m² Effectively the same
Open-circuit voltage 48.13 V 39.98 V 8.15 V apart
Voltage at max power 40.44 V 33.24 V 7.20 V apart
Short-circuit current 18.41 A 14.25 A 4.16 A apart
Current at max power 17.31 A 13.54 A 3.77 A apart
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 2384x1303x35 mm 1762x1134x30 mm 2384x1303x35 mm vs 1762x1134x30 mm
Module area 3.106 m² 1.998 m² 1.108 m² apart
Weight 38.0 kg 25.0 kg -13.0 kg for 450TGBL/108BB
Weight per kWp 54.3 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 132 108 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#3,982 vs #4,108
700TGB/132TS leads by 126 places
Power density
#3,989 vs #4,225
700TGB/132TS leads by 236 places
Heat behaviour
#8,005 vs #8,005
Tied - the same position in the database
Weight
#8,524 vs #9,909
700TGB/132TS leads by 1,385 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#114 vs #5,180
700TGB/132TS leads by 5,066 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Axitec AC-700TGB/132TS or Axitec AC-450TGBL/108BB?
According to our database: Axitec AC-700TGB/132TS has higher module efficiency (22.53% vs 22.52%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Axitec AC-700TGB/132TS and Axitec AC-450TGBL/108BB?
Axitec AC-700TGB/132TS has a module efficiency of 22.53%, while Axitec AC-450TGBL/108BB is 22.52%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Axitec AC-700TGB/132TS use vs Axitec AC-450TGBL/108BB?
Axitec AC-700TGB/132TS uses TOPCon cells; Axitec AC-450TGBL/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-700TGB/132TS and Axitec AC-450TGBL/108BB?
Axitec AC-700TGB/132TS has a 30 years power warranty; Axitec AC-450TGBL/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-700TGB/132TS and Axitec AC-450TGBL/108BB bifacial panels?
Both Axitec AC-700TGB/132TS and Axitec AC-450TGBL/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.