455W vs 440W 16 of 19 identical Swap Change panels

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 440W

Q: Which panel is better: HT-SAAE HT54-18X(ND)-F 455W or HT-SAAE HT54-18X(ND)-F 440W?

According to our database: HT-SAAE HT54-18X(ND)-F 455W has higher module efficiency (22.80% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455W has a module efficiency of 22.80%, while HT-SAAE HT54-18X(ND)-F 440W is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does HT-SAAE HT54-18X(ND)-F 455W use vs HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455W uses TOPCon cells; HT-SAAE HT54-18X(ND)-F 440W 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 HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455W has a 30 years power warranty; HT-SAAE HT54-18X(ND)-F 440W 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 HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W bifacial panels?

Both HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W 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.

HT-SAAE

HT54-18X(ND)-F 455W

455 Wp 22.80 % TOPCon Bifacial

Open panel page Datasheet PDF

HT-SAAE

HT54-18X(ND)-F 440W

440 Wp 22.00 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

455W leads on the differences that matter

The largest is module efficiency: 0.80 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

What actually differs

3 of 19 parameters

Parameter 455W 440W Difference

Module efficiency 22.80 % 22.00 % 0.80 pp more efficient

Power density 227.7 Wp/m² 220.2 Wp/m² 7.5 Wp/m² higher

Rated power 455 Wp 440 Wp 15 W more power

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 (-0.310 %/°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

440W

14,763 kWh

Lifetime gap

503 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 455W 440W

Standard test conditions 25 °C 100.0% of rated power 455 W 440 W

Cool, bright day 40 °C 95.3% of rated power 434 W 420 W

Typical summer roof 55 °C 90.7% of rated power 413 W 399 W

Hot roof 70 °C 86.0% of rated power 392 W 379 W

Full specification

Parameter 455W 440W Difference

Power and efficiency

Rated power 455 Wp 440 Wp +15 W for 455W

Module efficiency 22.80 % 22.00 % +0.80 pp for 455W

Power density 227.7 Wp/m² 220.2 Wp/m² +7.5 Wp/m² for 455W

Open-circuit voltage 39.10 V 38.60 V Effectively the same

Voltage at max power 32.70 V 32.20 V Effectively the same

Short-circuit current 14.61 A 14.39 A Effectively the same

Current at max power 13.92 A 13.68 A Effectively the same

Temperature

Temperature coefficient -0.310 %/°C -0.310 %/°C Same

Mechanical

Dimensions 1762x1134x30 mm 1762x1134x30 mm Same

Module area 1.998 m² 1.998 m² Same

Weight 25.0 kg 25.0 kg Same

Weight per kWp 54.9 kg/kWp 56.8 kg/kWp Effectively the same

Warranty and degradation

Product warranty 30 yrs 30 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 Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#2,714 vs #6,517

455W leads by 3,803 places

Power density

#2,888 vs #6,328

455W leads by 3,440 places

Heat behaviour

#8,005 vs #8,005

Tied - the same position in the database

Weight

#9,326 vs #10,878

455W leads by 1,552 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#4,727 vs #6,132

455W leads by 1,405 places

More useful comparisons

Open the full database

Same series, other bin

HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 460W

One difference: module efficiency

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HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 450W

One difference: module efficiency

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HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 445W

3 differences, the largest is module efficiency

Same series, other bin

HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 435W

6 differences, the largest is module efficiency

Same series, other bin

HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 430W

6 differences, the largest is module efficiency

Same series, other bin

HT-SAAE

HT-SAAE HT54-18X(ND)-F 455W vs HT-SAAE HT54-18X(ND)-F 425W

8 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: HT-SAAE HT54-18X(ND)-F 455W or HT-SAAE HT54-18X(ND)-F 440W?

According to our database: HT-SAAE HT54-18X(ND)-F 455 W has higher module efficiency (22.80% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455 W has a module efficiency of 22.80%, while HT-SAAE HT54-18X(ND)-F 440 W is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does HT-SAAE HT54-18X(ND)-F 455W use vs HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455 W uses TOPCon cells; HT-SAAE HT54-18X(ND)-F 440 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 HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W?

HT-SAAE HT54-18X(ND)-F 455 W has a 30 years power warranty; HT-SAAE HT54-18X(ND)-F 440 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 HT-SAAE HT54-18X(ND)-F 455W and HT-SAAE HT54-18X(ND)-F 440W bifacial panels?

Both HT-SAAE HT54-18X(ND)-F 455 W and HT-SAAE HT54-18X(ND)-F 440 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.

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.