S445HG vs S440HG(FB) 17 of 18 identical Swap Change panels

Hyundai HiE-S445HG vs Hyundai HiE-S440HG(FB)

Q: Which panel is better: Hyundai HiE-S445HG or Hyundai HiE-S440HG(FB)?

According to our database: Hyundai HiE-S445HG has higher module efficiency (21.40% vs 21.10%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Hyundai HiE-S445HG and Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG has a module efficiency of 21.40%, while Hyundai HiE-S440HG(FB) is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Hyundai HiE-S445HG use vs Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG uses PERC cells; Hyundai HiE-S440HG(FB) uses PERC. 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 Hyundai HiE-S445HG and Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG has a 25 years power warranty; Hyundai HiE-S440HG(FB) has a 25 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.

HiE-S445HG

445 Wp 21.40 % PERC

Open panel page Datasheet PDF

HiE-S440HG(FB)

440 Wp 21.10 % PERC

Open panel page Datasheet PDF

The verdict

S445HG 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 S445HG S440HG(FB) Difference

Module efficiency 21.40 % 21.10 % 0.30 pp more efficient

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

Same temp coeff. for both panels (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

S445HG

14,422 kWh

S440HG(FB)

14,260 kWh

Lifetime gap

162 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario S445HG S440HG(FB)

Standard test conditions 25 °C 100.0% of rated power 445 W 440 W

Cool, bright day 40 °C 94.9% of rated power 422 W 418 W

Typical summer roof 55 °C 89.8% of rated power 400 W 395 W

Hot roof 70 °C 84.7% of rated power 377 W 373 W

Full specification

Parameter S445HG S440HG(FB) Difference

Power and efficiency

Rated power 445 Wp 440 Wp Effectively the same

Module efficiency 21.40 % 21.10 % +0.30 pp for S445HG

Power density 213.8 Wp/m² 211.4 Wp/m² Effectively the same

Open-circuit voltage 43.80 V 43.70 V Effectively the same

Voltage at max power 36.40 V 36.30 V Effectively the same

Short-circuit current 13.01 A 12.90 A Effectively the same

Current at max power 12.23 A 12.13 A Effectively the same

Temperature

Temperature coefficient -0.340 %/°C -0.340 %/°C Same

Mechanical

Dimensions 1899x1096x30 mm 1899x1096x30 mm Same

Module area 2.081 m² 2.081 m² Same

Weight 21.8 kg 21.8 kg Same

Weight per kWp 49.0 kg/kWp 49.5 kg/kWp Effectively the same

Warranty and degradation

Product warranty 25 yrs 25 yrs Same

Performance warranty 25 yrs 25 yrs Same

Annual degradation 0.55 %/yr 0.55 %/yr Same

Technology

Cell technology PERC PERC Same

Cell type Monocrystalline Monocrystalline Same

Cell count - - Neither datasheet publishes this

Bifacial No No Same

Against the whole database

14,129 panels

Efficiency

#8,388 vs #9,365

S445HG leads by 977 places

Power density

#8,410 vs #9,276

S445HG leads by 866 places

Heat behaviour

#8,846 vs #8,846

Tied - the same position in the database

Weight

#2,675 vs #3,118

S445HG leads by 443 places

Warranty

#9,912 vs #9,912

Tied - the same position in the database

Overall

#8,888 vs #9,385

S445HG leads by 497 places

More useful comparisons

Open the full database

Same series, other bin

Hyundai HiE-S445HG vs Hyundai HiE-S445HG(FB)

The same specification on paper

Same series, other bin

Hyundai HiE-S445HG vs Hyundai HiE-S440HG

One difference: module efficiency

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Hyundai HiE-S445HG vs Hyundai HiE-S435HG

3 differences, the largest is module efficiency

Same series, other bin

Hyundai HiE-S445HG vs Hyundai HiE-S435HG(FB)

3 differences, the largest is module efficiency

Same series, other bin

Hyundai HiE-S445HG vs Hyundai HiE-S430HG(FB)

3 differences, the largest is module efficiency

Same manufacturer

Hyundai HiE-S445HG vs Hyundai HiS-T640NJ

17 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: Hyundai HiE-S445HG or Hyundai HiE-S440HG(FB)?

According to our database: Hyundai HiE-S445HG has higher module efficiency (21.40% vs 21.10%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Hyundai HiE-S445HG and Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG has a module efficiency of 21.40%, while Hyundai HiE-S440HG(FB) is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Hyundai HiE-S445HG use vs Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG uses PERC cells; Hyundai HiE-S440HG(FB) uses PERC. 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 Hyundai HiE-S445HG and Hyundai HiE-S440HG(FB)?

Hyundai HiE-S445HG has a 25 years power warranty; Hyundai HiE-S440HG(FB) has a 25 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.

Shop prices: See 28 Hyundai offers

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.