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470-120M10NHBB-GG vs 440-108M10HBT-GG 10 of 19 identical Swap Change panels

Bauer Solar BS-470-120M10NHBB-GG vs Bauer Solar BS-440-108M10HBT-GG

Bauer Solar BS-470-120M10NHBB-GG
Bauer Solar
BS-470-120M10NHBB-GG
470 Wp 21.72 % 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

440-108M10HBT-GG leads on the differences that matter

The largest is rated power: 30 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 470-120M10NHBB-GG 440-108M10HBT-GG Difference
Rated power 470 Wp 440 Wp 30 W more power
Module area 2.164 m² 1.998 m² 0.166 m² apart
Module efficiency 21.72 % 22.00 % 0.28 pp more efficient
Weight 26.7 kg 24.5 kg 2.2 kg lighter
Open-circuit voltage 42.37 V 39.40 V 2.97 V apart
Temperature coefficient -0.300 %/°C -0.290 %/°C 0.010 %/°C better in heat
Cell count 120 108 12 cells apart
Voltage at max power 35.07 V 32.84 V 2.23 V apart
Dimensions 1908x1134x30 mm 1762x1134x30 mm 1908x1134x30 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
470-120M10NHBB-GG
15,769 kWh
440-108M10HBT-GG
14,763 kWh
Lifetime gap
1,006 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 470-120M10NHBB-GG 440-108M10HBT-GG
Standard test conditions 25 °C 100.0% of rated power 470 W 440 W
Cool, bright day 40 °C 95.5% of rated power 449 W 421 W
Typical summer roof 55 °C 91.0% of rated power 428 W 402 W
Hot roof 70 °C 86.5% of rated power 407 W 383 W
03

Full specification

Parameter 470-120M10NHBB-GG 440-108M10HBT-GG Difference
Power and efficiency
Rated power 470 Wp 440 Wp +30 W for 470-120M10NHBB-GG
Module efficiency 21.72 % 22.00 % +0.28 pp for 440-108M10HBT-GG
Power density 217.2 Wp/m² 220.2 Wp/m² Effectively the same
Open-circuit voltage 42.37 V 39.40 V 2.97 V apart
Voltage at max power 35.07 V 32.84 V 2.23 V apart
Short-circuit current 14.15 A 13.90 A Effectively the same
Current at max power 13.41 A 13.40 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.290 %/°C +0.010 %/°C for 440-108M10HBT-GG
Mechanical
Dimensions 1908x1134x30 mm 1762x1134x30 mm 1908x1134x30 mm vs 1762x1134x30 mm
Module area 2.164 m² 1.998 m² 0.166 m² apart
Weight 26.7 kg 24.5 kg -2.2 kg for 440-108M10HBT-GG
Weight per kWp 56.8 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 120 108 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#7,399 vs #6,517
440-108M10HBT-GG leads by 882 places
Power density
#7,384 vs #6,328
440-108M10HBT-GG leads by 1,056 places
Heat behaviour
#6,093 vs #2,165
440-108M10HBT-GG leads by 3,928 places
Weight
#10,872 vs #10,051
440-108M10HBT-GG leads by 821 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,428 vs #6,098
470-120M10NHBB-GG leads by 670 places
05

More useful comparisons

Open the full database
Same series, other bin
Bauer Solar
Bauer Solar BS-470-120M10NHBB-GG vs Bauer Solar BS-475-120M10NHBB-GG
One difference: module efficiency
Same series, other bin
Bauer Solar
Bauer Solar BS-470-120M10NHBB-GG vs Bauer Solar BS-465-120M10NHBB-GG
One difference: module efficiency
Same series, other bin
Bauer Solar
Bauer Solar BS-440-108M10HBT-GG vs Bauer Solar BS-450-108M10HBT-GG
3 differences, the largest is module efficiency
Same series, other bin
Bauer Solar
Bauer Solar BS-440-108M10HBT-GG vs Bauer Solar BS-445-108M10HBT-GG
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Bauer Solar BS-470-120M10NHBB-GG or Bauer Solar BS-440-108M10HBT-GG?
According to our database: Bauer Solar BS-440-108M10HBT-GG has higher module efficiency (22.00% vs 21.72%); Bauer Solar BS-440-108M10HBT-GG tolerates heat better (temp coeff -0.290%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Bauer Solar BS-470-120M10NHBB-GG and Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-470-120M10NHBB-GG has a module efficiency of 21.72%, 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-470-120M10NHBB-GG use vs Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-470-120M10NHBB-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-470-120M10NHBB-GG and Bauer Solar BS-440-108M10HBT-GG?
Bauer Solar BS-470-120M10NHBB-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-470-120M10NHBB-GG and Bauer Solar BS-440-108M10HBT-GG bifacial panels?
Both Bauer Solar BS-470-120M10NHBB-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.