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455W vs 445 W 10 of 18 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W

Solar-Fabrik
Mono S4 Halfcut Trend Full Black 455W
455 Wp 22.80 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solar-Fabrik
Mono S4 Halfcut Trend Full Black 445 W
445 Wp 22.30 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

455W leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 10 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 8 differences
How alike are they
10 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 18 parameters
Parameter 455W 445 W Difference
Module efficiency 22.80 % 22.30 % 0.50 pp more efficient
Open-circuit voltage 36.19 V 40.05 V 3.86 V apart
Short-circuit current 15.87 A 14.10 A 1.77 A apart
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
Cell count 96 108 12 cells apart
Current at max power 15.16 A 13.20 A 1.96 A apart
Voltage at max power 30.01 V 33.71 V 3.70 V apart
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, 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.
455W
15,266 kWh
445 W
14,931 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 455W 445 W
Standard test conditions 25 °C 100.0% of rated power 455 W 445 W
Cool, bright day 40 °C 95.7% of rated power 435 W 426 W
Typical summer roof 55 °C 91.3% of rated power 415 W 406 W
Hot roof 70 °C 87.0% of rated power 396 W 387 W
03

Full specification

Parameter 455W 445 W Difference
Power and efficiency
Rated power 455 Wp 445 Wp +10 W for 455W
Module efficiency 22.80 % 22.30 % +0.50 pp for 455W
Power density 227.7 Wp/m² 222.7 Wp/m² +5.0 Wp/m² for 455W
Open-circuit voltage 36.19 V 40.05 V 3.86 V apart
Voltage at max power 30.01 V 33.71 V 3.70 V apart
Short-circuit current 15.87 A 14.10 A 1.77 A apart
Current at max power 15.16 A 13.20 A 1.96 A apart
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 24.9 kg 24.9 kg Same
Weight per kWp 54.7 kg/kWp 56.0 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 96 108 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,714 vs #5,100
455W leads by 2,386 places
Power density
#2,888 vs #5,302
455W leads by 2,414 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#9,129 vs #10,301
455W leads by 1,172 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,712 vs #5,595
455W leads by 883 places
05

More useful comparisons

Open the full database
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik Mono S4 Halfcut Trend Full Black 460W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik S4-DG460-96TMax (Full Black)
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik S4-DG455-96TMax (Full Black)
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik Mono S4 Halfcut Trend Full Black 450 W
6 differences, the largest is open-circuit voltage
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik S4-DG625-132TMax
12 differences, the largest is rated power
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W vs Solar-Fabrik S4-DG620-132TMax
10 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W or Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W?
According to our database: Solar-Fabrik Mono S4 Halfcut Trend Full Black 455 W has higher module efficiency (22.80% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W and Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W?
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455 W has a module efficiency of 22.80%, while Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W use vs Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W?
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455 W uses TOPCon cells; Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W 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 Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W and Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W?
Solar-Fabrik Mono S4 Halfcut Trend Full Black 455 W has a 30 years power warranty; Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W 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 Solar-Fabrik Mono S4 Halfcut Trend Full Black 455W and Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W bifacial panels?
Both Solar-Fabrik Mono S4 Halfcut Trend Full Black 455 W and Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W 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.