445TGBL/108BB vs 450TGBL/108BB 18 of 19 identical Swap Change panels

Axitec AC-445TGBL/108BB vs Axitec AC-450TGBL/108BB

Q: Which panel is better: Axitec AC-445TGBL/108BB or Axitec AC-450TGBL/108BB?

According to our database: Axitec AC-450TGBL/108BB has higher module efficiency (22.52% vs 22.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Axitec AC-445TGBL/108BB and Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB has a module efficiency of 22.27%, while Axitec AC-450TGBL/108BB is 22.52%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Axitec AC-445TGBL/108BB use vs Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB 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.

Q: What is the warranty on Axitec AC-445TGBL/108BB and Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB 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.

Q: Are Axitec AC-445TGBL/108BB and Axitec AC-450TGBL/108BB bifacial panels?

Both Axitec AC-445TGBL/108BB 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.

Axitec

AC-445TGBL/108BB

445 Wp 22.27 % TOPCon Bifacial

Open panel page Datasheet PDF

Axitec

AC-450TGBL/108BB

450 Wp 22.52 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

450TGBL/108BB leads on the differences that matter

The largest is module efficiency: 0.25 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference

How alike are they

18 of 19 comparable
parameters are identical

identical differs

What actually differs

1 of 19 parameters

Parameter 445TGBL/108BB 450TGBL/108BB Difference

Module efficiency 22.27 % 22.52 % 0.25 pp more efficient

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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.

445TGBL/108BB

14,931 kWh

450TGBL/108BB

15,098 kWh

Lifetime gap

167 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 445TGBL/108BB 450TGBL/108BB

Standard test conditions 25 °C 100.0% of rated power 445 W 450 W

Cool, bright day 40 °C 95.3% of rated power 424 W 429 W

Typical summer roof 55 °C 90.7% of rated power 404 W 408 W

Hot roof 70 °C 86.0% of rated power 383 W 387 W

Full specification

Parameter 445TGBL/108BB 450TGBL/108BB Difference

Power and efficiency

Rated power 445 Wp 450 Wp Effectively the same

Module efficiency 22.27 % 22.52 % +0.25 pp for 450TGBL/108BB

Power density 222.7 Wp/m² 225.2 Wp/m² Effectively the same

Open-circuit voltage 39.70 V 39.98 V Effectively the same

Voltage at max power 32.99 V 33.24 V Effectively the same

Short-circuit current 14.19 A 14.25 A Effectively the same

Current at max power 13.49 A 13.54 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 56.2 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

Against the whole database

14,005 panels

Efficiency

#5,481 vs #4,108

450TGBL/108BB leads by 1,373 places

Power density

#5,302 vs #4,225

450TGBL/108BB leads by 1,077 places

Heat behaviour

#8,005 vs #8,005

Tied - the same position in the database

Weight

#10,457 vs #9,909

450TGBL/108BB leads by 548 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#5,619 vs #5,180

450TGBL/108BB leads by 439 places

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Written summary

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Questions about this pairing

Which panel is better: Axitec AC-445TGBL/108BB or Axitec AC-450TGBL/108BB?

According to our database: Axitec AC-450TGBL/108BB has higher module efficiency (22.52% vs 22.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Axitec AC-445TGBL/108BB and Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB has a module efficiency of 22.27%, 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-445TGBL/108BB use vs Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB 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-445TGBL/108BB and Axitec AC-450TGBL/108BB?

Axitec AC-445TGBL/108BB 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-445TGBL/108BB and Axitec AC-450TGBL/108BB bifacial panels?

Both Axitec AC-445TGBL/108BB 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.