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JT445SNt(B) vs JT450SNt(B) 18 of 19 identical Swap Change panels

Jetion JT445SNt(B) vs Jetion JT450SNt(B)

Jetion
JT445SNt(B)
445 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Jetion
JT450SNt(B)
450 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

JT450SNt(B) leads on the differences that matter

The largest is module efficiency: 0.20 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
01

What actually differs

1 of 19 parameters
Parameter JT445SNt(B) JT450SNt(B) Difference
Module efficiency 22.30 % 22.50 % 0.20 pp more efficient
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.
JT445SNt(B)
14,931 kWh
JT450SNt(B)
15,098 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JT445SNt(B) JT450SNt(B)
Standard test conditions 25 °C 100.0% of rated power 445 W 450 W
Cool, bright day 40 °C 95.7% of rated power 426 W 430 W
Typical summer roof 55 °C 91.3% of rated power 406 W 411 W
Hot roof 70 °C 87.0% of rated power 387 W 391 W
03

Full specification

Parameter JT445SNt(B) JT450SNt(B) Difference
Power and efficiency
Rated power 445 Wp 450 Wp Effectively the same
Module efficiency 22.30 % 22.50 % +0.20 pp for JT450SNt(B)
Power density 222.7 Wp/m² 225.2 Wp/m² Effectively the same
Open-circuit voltage 35.50 V 35.70 V Effectively the same
Voltage at max power 29.69 V 29.89 V Effectively the same
Short-circuit current 15.99 A 16.06 A Effectively the same
Current at max power 14.99 A 15.06 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 23.7 kg 23.7 kg Same
Weight per kWp 53.3 kg/kWp 52.7 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 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 96 96 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #4,222
JT450SNt(B) leads by 878 places
Power density
#5,302 vs #4,225
JT450SNt(B) leads by 1,077 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,098 vs #6,288
JT450SNt(B) leads by 810 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,435 vs #9,075
JT450SNt(B) leads by 360 places
05

More useful comparisons

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3 differences, the largest is module efficiency
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Jetion JT445SNt(B) vs Jetion JT440SNt(B)
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Jetion JT445SNt(B) vs Jetion JT800SXt(B)
12 differences, the largest is module efficiency
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Jetion JT445SNt(B) vs Jetion JT795SXt(B)
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Jetion JT445SNt(B) vs Jetion JT790SXt(B)
12 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jetion JT445SNt(B) or Jetion JT450SNt(B)?
According to our database: Jetion JT450SNt(B) has higher module efficiency (22.50% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jetion JT445SNt(B) and Jetion JT450SNt(B)?
Jetion JT445SNt(B) has a module efficiency of 22.30%, while Jetion JT450SNt(B) is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jetion JT445SNt(B) use vs Jetion JT450SNt(B)?
Jetion JT445SNt(B) uses TOPCon cells; Jetion JT450SNt(B) 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 Jetion JT445SNt(B) and Jetion JT450SNt(B)?
Jetion JT445SNt(B) has a 30 years power warranty; Jetion JT450SNt(B) 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 Jetion JT445SNt(B) and Jetion JT450SNt(B) bifacial panels?
Both Jetion JT445SNt(B) and Jetion JT450SNt(B) 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.