445Wp vs 450Wp 17 of 18 identical Swap Change panels

Solarwatt SOLARWATT Panel vision M 5.0 445Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp

Q: What is the efficiency of Solarwatt SOLARWATT Panel vision M 5.0 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445Wp has a module efficiency of 22.30%, while Solarwatt SOLARWATT Panel vision M 5.0 450Wp 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 445Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445Wp uses TOPCon cells; Solarwatt SOLARWATT Panel vision M 5.0 450Wp 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 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445Wp has a 30 years power warranty; Solarwatt SOLARWATT Panel vision M 5.0 450Wp 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 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp bifacial panels?

Both Solarwatt SOLARWATT Panel vision M 5.0 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp 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 445Wp

445 Wp 22.30 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

Solarwatt

SOLARWATT Panel vision M 5.0 450Wp

450 Wp 22.50 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

The verdict

450Wp leads on the differences that matter

The largest is module efficiency: 0.20 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 445Wp 450Wp Difference

Module efficiency 22.30 % 22.50 % 0.20 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.

445Wp

14,931 kWh

450Wp

15,098 kWh

Lifetime gap

167 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 445Wp 450Wp

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

Full specification

Parameter 445Wp 450Wp Difference

Power and efficiency

Rated power 445 Wp 450 Wp Effectively the same

Module efficiency 22.30 % 22.50 % +0.20 pp for 450Wp

Power density 222.7 Wp/m² 225.2 Wp/m² Effectively the same

Open-circuit voltage 39.60 V 39.80 V Effectively the same

Voltage at max power 33.00 V 33.20 V Effectively the same

Short-circuit current 14.00 A 14.00 A Same

Current at max power 13.50 A 13.50 A 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 55.7 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

#5,100 vs #4,222

450Wp leads by 878 places

Power density

#5,302 vs #4,225

450Wp leads by 1,077 places

Heat behaviour

#2,165 vs #2,165

Tied - the same position in the database

Weight

#10,127 vs #9,543

450Wp leads by 584 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#5,595 vs #5,200

450Wp leads by 395 places

More useful comparisons

Open the full database

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Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 445Wp vs Solarwatt SOLARWATT Panel vision M 5.0 460 Wp

3 differences, the largest is module efficiency

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

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Solarwatt SOLARWATT Panel vision M 5.0 445Wp vs Solarwatt SOLARWATT Panel vision M 5.0 450 Wp

One difference: module efficiency

Same series, other bin

Solarwatt

Solarwatt SOLARWATT Panel vision M 5.0 445Wp vs Solarwatt vision M 5.0 450 Wp

One difference: module efficiency

Same series, other bin

Solarwatt

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

The same specification on paper

Same series, other bin

Solarwatt

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

The same specification on paper

Written summary

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Questions about this pairing

Which panel is better: Solarwatt SOLARWATT Panel vision M 5.0 445Wp or Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

According to our database: Solarwatt SOLARWATT Panel vision M 5.0 450 Wp 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 Solarwatt SOLARWATT Panel vision M 5.0 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445 Wp has a module efficiency of 22.30%, 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 445Wp use vs Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445 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 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp?

Solarwatt SOLARWATT Panel vision M 5.0 445 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 445Wp and Solarwatt SOLARWATT Panel vision M 5.0 450Wp bifacial panels?

Both Solarwatt SOLARWATT Panel vision M 5.0 445 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.