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450-108M10HBT-GG vs 440-108M10HBT-GG 16 of 19 identical Swap Change panels

Bauer Solar BS-450-108M10HBT-GG vs Bauer Solar BS-440-108M10HBT-GG

Bauer Solar BS-450-108M10HBT-GG
Bauer Solar
BS-450-108M10HBT-GG
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Bauer Solar BS-440-108M10HBT-GG
Bauer Solar
BS-440-108M10HBT-GG
440 Wp 22.00 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

450-108M10HBT-GG leads on the differences that matter

The largest is module efficiency: 0.50 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 450-108M10HBT-GG 440-108M10HBT-GG Difference
Module efficiency 22.50 % 22.00 % 0.50 pp more efficient
Power density 225.2 Wp/m² 220.2 Wp/m² 5.0 Wp/m² higher
Rated power 450 Wp 440 Wp 10 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
450-108M10HBT-GG
15,098 kWh
440-108M10HBT-GG
14,763 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450-108M10HBT-GG 440-108M10HBT-GG
Standard test conditions 25 °C 100.0% of rated power 450 W 440 W
Cool, bright day 40 °C 95.7% of rated power 430 W 421 W
Typical summer roof 55 °C 91.3% of rated power 411 W 402 W
Hot roof 70 °C 87.0% of rated power 391 W 383 W
03

Full specification

Parameter 450-108M10HBT-GG 440-108M10HBT-GG Difference
Power and efficiency
Rated power 450 Wp 440 Wp +10 W for 450-108M10HBT-GG
Module efficiency 22.50 % 22.00 % +0.50 pp for 450-108M10HBT-GG
Power density 225.2 Wp/m² 220.2 Wp/m² +5.0 Wp/m² for 450-108M10HBT-GG
Open-circuit voltage 39.80 V 39.40 V Effectively the same
Voltage at max power 33.24 V 32.84 V Effectively the same
Short-circuit current 14.04 A 13.90 A Effectively the same
Current at max power 13.54 A 13.40 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 24.5 kg 24.5 kg Same
Weight per kWp 54.4 kg/kWp 55.7 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
#4,222 vs #6,517
450-108M10HBT-GG leads by 2,295 places
Power density
#4,225 vs #6,328
450-108M10HBT-GG leads by 2,103 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,755 vs #10,051
450-108M10HBT-GG leads by 1,296 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,189 vs #6,098
450-108M10HBT-GG leads by 909 places
05

More useful comparisons

Open the full database
Same series, other bin
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Bauer Solar BS-450-108M10HBT-GG vs Bauer Solar BS-445-108M10HBT-GG
One difference: module efficiency
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Bauer Solar BS-450-108M10HBT-GG vs Bauer Solar BS-475-120M10NHBB-GG
10 differences, the largest is module efficiency
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Bauer Solar BS-450-108M10HBT-GG vs Bauer Solar BS-470-120M10NHBB-GG
11 differences, the largest is module efficiency
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Bauer Solar BS-450-108M10HBT-GG vs Bauer Solar BS-465-120M10NHBB-GG
11 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Bauer Solar BS-450-108M10HBT-GG or Bauer Solar BS-440-108M10HBT-GG?
According to our database: Bauer Solar BS-450-108M10HBT-GG has higher module efficiency (22.50% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Bauer Solar BS-450-108M10HBT-GG and Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-450-108M10HBT-GG has a module efficiency of 22.50%, while Bauer Solar BS-440-108M10HBT-GG is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Bauer Solar BS-450-108M10HBT-GG use vs Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-450-108M10HBT-GG uses TOPCon cells; Bauer Solar BS-440-108M10HBT-GG 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 Bauer Solar BS-450-108M10HBT-GG and Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-450-108M10HBT-GG has a 30 years power warranty; Bauer Solar BS-440-108M10HBT-GG 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 Bauer Solar BS-450-108M10HBT-GG and Bauer Solar BS-440-108M10HBT-GG bifacial panels?
Both Bauer Solar BS-450-108M10HBT-GG and Bauer Solar BS-440-108M10HBT-GG 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.

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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.