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455 MS-TA1 vs 445 MS-TA1 16 of 19 identical Swap Change panels

IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar IBC Module White 445 MS-TA1

IBC Solar
IBC Module White 455 MS-TA1
455 Wp 22.77 % TOPCon
Open panel page Datasheet PDF
VS
IBC Solar
IBC Module White 445 MS-TA1
445 Wp 22.27 % TOPCon
Open panel page Datasheet PDF
The verdict

455 MS-TA1 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 455 MS-TA1 445 MS-TA1 Difference
Module efficiency 22.77 % 22.27 % 0.50 pp more efficient
Power density 227.7 Wp/m² 222.7 Wp/m² 5.0 Wp/m² higher
Rated power 455 Wp 445 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
455 MS-TA1
15,266 kWh
445 MS-TA1
14,931 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 455 MS-TA1 445 MS-TA1
Standard test conditions 25 °C 100.0% of rated power 455 W 445 W
Cool, bright day 40 °C 95.5% of rated power 435 W 425 W
Typical summer roof 55 °C 91.0% of rated power 414 W 405 W
Hot roof 70 °C 86.5% of rated power 394 W 385 W
03

Full specification

Parameter 455 MS-TA1 445 MS-TA1 Difference
Power and efficiency
Rated power 455 Wp 445 Wp +10 W for 455 MS-TA1
Module efficiency 22.77 % 22.27 % +0.50 pp for 455 MS-TA1
Power density 227.7 Wp/m² 222.7 Wp/m² +5.0 Wp/m² for 455 MS-TA1
Open-circuit voltage 39.98 V 39.59 V Effectively the same
Voltage at max power 33.41 V 33.02 V Effectively the same
Short-circuit current 14.07 A 13.93 A Effectively the same
Current at max power 13.62 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 46.2 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 TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#3,073 vs #5,481
455 MS-TA1 leads by 2,408 places
Power density
#2,888 vs #5,302
455 MS-TA1 leads by 2,414 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#1,016 vs #1,537
455 MS-TA1 leads by 521 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,769 vs #8,772
455 MS-TA1 leads by 1,003 places
05

More useful comparisons

Open the full database
Same series, other bin
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IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar IBC Module White 450 MS-TA1
One difference: module efficiency
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IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar IBC Module White 440 MS-TA1
3 differences, the largest is module efficiency
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IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar YH720W-33MHD/MH
15 differences, the largest is temperature coefficient
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IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar YH715W-33MHD/MH
14 differences, the largest is temperature coefficient
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IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar YH710W-33MHD/MH
13 differences, the largest is temperature coefficient
Same manufacturer
IBC Solar
IBC Solar IBC Module White 455 MS-TA1 vs IBC Solar YH550W-36MH
14 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: IBC Solar IBC Module White 455 MS-TA1 or IBC Solar IBC Module White 445 MS-TA1?
According to our database: IBC Solar IBC Module White 455 MS-TA1 has higher module efficiency (22.77% 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 IBC Module White 455 MS-TA1 and IBC Solar IBC Module White 445 MS-TA1?
IBC Solar IBC Module White 455 MS-TA1 has a module efficiency of 22.77%, while IBC Solar IBC Module 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 IBC Module White 455 MS-TA1 use vs IBC Solar IBC Module White 445 MS-TA1?
IBC Solar IBC Module White 455 MS-TA1 uses TOPCon cells; IBC Solar IBC Module White 445 MS-TA1 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 IBC Solar IBC Module White 455 MS-TA1 and IBC Solar IBC Module White 445 MS-TA1?
IBC Solar IBC Module White 455 MS-TA1 has a 30 years power warranty; IBC Solar IBC Module 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.