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450 MS-TA1 vs 445 MS-TA1 18 of 19 identical Swap Change panels

IBC Solar White 450 MS-TA1 vs IBC Solar White 445 MS-TA1

IBC Solar
White 450 MS-TA1
450 Wp 22.52 % Back Contact
Open panel page Datasheet PDF
VS
IBC Solar
White 445 MS-TA1
445 Wp 22.27 % Back Contact
Open panel page Datasheet PDF
The verdict

450 MS-TA1 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
01

What actually differs

1 of 19 parameters
Parameter 450 MS-TA1 445 MS-TA1 Difference
Module efficiency 22.52 % 22.27 % 0.25 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
450 MS-TA1
15,098 kWh
445 MS-TA1
14,931 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450 MS-TA1 445 MS-TA1
Standard test conditions 25 °C 100.0% of rated power 450 W 445 W
Cool, bright day 40 °C 95.5% of rated power 430 W 425 W
Typical summer roof 55 °C 91.0% of rated power 410 W 405 W
Hot roof 70 °C 86.5% of rated power 389 W 385 W
03

Full specification

Parameter 450 MS-TA1 445 MS-TA1 Difference
Power and efficiency
Rated power 450 Wp 445 Wp Effectively the same
Module efficiency 22.52 % 22.27 % +0.25 pp for 450 MS-TA1
Power density 225.2 Wp/m² 222.7 Wp/m² Effectively the same
Open-circuit voltage 39.78 V 39.59 V Effectively the same
Voltage at max power 33.21 V 33.02 V Effectively the same
Short-circuit current 14.00 A 13.93 A Effectively the same
Current at max power 13.55 A 13.48 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 21.0 kg 21.0 kg Same
Weight per kWp 46.7 kg/kWp 47.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology Back Contact Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#4,108 vs #5,481
450 MS-TA1 leads by 1,373 places
Power density
#4,225 vs #5,302
450 MS-TA1 leads by 1,077 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#1,258 vs #1,537
450 MS-TA1 leads by 279 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,281 vs #8,772
450 MS-TA1 leads by 491 places
05

More useful comparisons

Open the full database
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar IBC Module White 455 MS-TA1
2 differences, the largest is module efficiency
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar White 455 MS-TA1
One difference: module efficiency
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar IBC Module White 450 MS-TA1
One difference: cell technology
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar IBC Module White 445 MS-TA1
2 differences, the largest is module efficiency
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar IBC Module White 440 MS-TA1
4 differences, the largest is module efficiency
Same series, other bin
IBC Solar
IBC Solar White 450 MS-TA1 vs IBC Solar White 440 MS-TA1
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: IBC Solar White 450 MS-TA1 or IBC Solar White 445 MS-TA1?
According to our database: IBC Solar White 450 MS-TA1 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 IBC Solar White 450 MS-TA1 and IBC Solar White 445 MS-TA1?
IBC Solar White 450 MS-TA1 has a module efficiency of 22.52%, while IBC Solar White 445 MS-TA1 is 22.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does IBC Solar White 450 MS-TA1 use vs IBC Solar White 445 MS-TA1?
IBC Solar White 450 MS-TA1 uses Back Contact cells; IBC Solar White 445 MS-TA1 uses Back Contact. 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 IBC Solar White 450 MS-TA1 and IBC Solar White 445 MS-TA1?
IBC Solar White 450 MS-TA1 has a 30 years power warranty; IBC Solar White 445 MS-TA1 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.

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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.