455 Wp vs 450 Wp 17 of 18 identical Swap Change panels

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp

Q: What is the efficiency of Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has a module efficiency of 22.80%, while Solarwatt SOLARWATT Panel vision M 5.0 450 Wp is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Solarwatt SOLARWATT Panel vision M 5.0 455 Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp uses TOPCon cells; Solarwatt SOLARWATT Panel vision M 5.0 450 Wp uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has a 30 years power warranty; Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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.

Q: Are Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp bifacial panels?

Both Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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.

Solarwatt

SOLARWATT Panel vision M 5.0 455 Wp

455 Wp 22.80 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

Solarwatt

SOLARWATT Panel vision M 5.0 450 Wp

450 Wp 22.50 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

The verdict

455 Wp leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference

How alike are they

17 of 18 comparable
parameters are identical

identical differs not published

What actually differs

1 of 18 parameters

Parameter 455 Wp 450 Wp Difference

Module efficiency 22.80 % 22.50 % 0.30 pp more efficient

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

Cell temperature

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.

455 Wp

15,266 kWh

450 Wp

15,098 kWh

Lifetime gap

168 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 455 Wp 450 Wp

Standard test conditions 25 °C 100.0% of rated power 455 W 450 W

Cool, bright day 40 °C 95.7% of rated power 435 W 430 W

Typical summer roof 55 °C 91.3% of rated power 415 W 411 W

Hot roof 70 °C 87.0% of rated power 396 W 391 W

Full specification

Parameter 455 Wp 450 Wp Difference

Power and efficiency

Rated power 455 Wp 450 Wp Effectively the same

Module efficiency 22.80 % 22.50 % +0.30 pp for 455 Wp

Power density 227.7 Wp/m² 225.2 Wp/m² Effectively the same

Open-circuit voltage 40.00 V 39.80 V Effectively the same

Voltage at max power 33.40 V 33.20 V Effectively the same

Short-circuit current 14.10 A 14.00 A Effectively the same

Current at max power 13.60 A 13.50 A Effectively the same

Temperature

Temperature coefficient -0.290 %/°C -0.290 %/°C Same

Mechanical

Dimensions 1762x1134x35 mm 1762x1134x35 mm Same

Module area 1.998 m² 1.998 m² Same

Weight 24.8 kg 24.8 kg Same

Weight per kWp 54.5 kg/kWp 55.1 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 108 108 Same

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#2,714 vs #4,222

455 Wp leads by 1,508 places

Power density

#2,888 vs #4,225

455 Wp leads by 1,337 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#8,839 vs #9,543

455 Wp leads by 704 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#4,712 vs #5,200

455 Wp leads by 488 places

More useful comparisons

Open the full database

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Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 460 Wp

One difference: module efficiency

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Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 445 Wp

3 differences, the largest is module efficiency

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Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp

One difference: module efficiency

Same manufacturer

Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt vision M 5.0 450 Wp

One difference: module efficiency

Same manufacturer

Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt SOLARWATT Panel vision M 5.0 445Wp

3 differences, the largest is module efficiency

Same manufacturer

Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp vs Solarwatt vision M 5.0 445 Wp

3 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: Solarwatt SOLARWATT Panel vision M 5.0 455 Wp or Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

According to our database: Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has higher module efficiency (22.80% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has a module efficiency of 22.80%, while Solarwatt SOLARWATT Panel vision M 5.0 450 Wp is 22.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Solarwatt SOLARWATT Panel vision M 5.0 455 Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp uses TOPCon cells; Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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 Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp?

Solarwatt SOLARWATT Panel vision M 5.0 455 Wp has a 30 years power warranty; Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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 Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp bifacial panels?

Both Solarwatt SOLARWATT Panel vision M 5.0 455 Wp and Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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.

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.