470W vs 515W 11 of 19 identical Swap Change panels

HT-SAAE HT54-18X(N)-470W vs HT-SAAE HT54-18X(N)-515W

Q: Which panel is better: HT-SAAE HT54-18X(N)-470W or HT-SAAE HT54-18X(N)-515W?

According to our database: HT-SAAE HT54-18X(N)-470W has higher module efficiency (23.50% vs 23.20%). 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(N)-470W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470W has a module efficiency of 23.50%, while HT-SAAE HT54-18X(N)-515W is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does HT-SAAE HT54-18X(N)-470W use vs HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470W uses TOPCon cells; HT-SAAE HT54-18X(N)-515W 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(N)-470W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470W has a 30 years power warranty; HT-SAAE HT54-18X(N)-515W 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.

HT-SAAE

HT54-18X(N)-470W

470 Wp 23.50 % TOPCon

Open panel page Datasheet PDF

HT-SAAE

HT54-18X(N)-515W

515 Wp 23.20 % TOPCon

Open panel page Datasheet PDF

The verdict

8 differences, and they point both ways

The largest is rated power: 45 W more power. 11 of 19 comparable parameters are identical.

See all 8 differences

How alike are they

11 of 19 comparable
parameters are identical

identical differs

What actually differs

8 of 19 parameters

Parameter 470W 515W Difference

Rated power 470 Wp 515 Wp 45 W more power

Module area 1.998 m² 2.223 m² 0.225 m² apart

Module efficiency 23.50 % 23.20 % 0.30 pp more efficient

Weight 21.0 kg 23.5 kg 2.5 kg lighter

Short-circuit current 14.79 A 16.20 A 1.41 A apart

Power density 235.2 Wp/m² 231.7 Wp/m² 3.5 Wp/m² higher

Current at max power 14.13 A 15.57 A 1.44 A apart

Dimensions 1762x1134x30 mm 1960x1134x30 mm 1762x1134x30 mm vs 1960x1134x30 mm

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.

470W

15,769 kWh

515W

17,279 kWh

Lifetime gap

1,510 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 470W 515W

Standard test conditions 25 °C 100.0% of rated power 470 W 515 W

Cool, bright day 40 °C 95.3% of rated power 448 W 491 W

Typical summer roof 55 °C 90.7% of rated power 426 W 467 W

Hot roof 70 °C 86.0% of rated power 404 W 443 W

Full specification

Parameter 470W 515W Difference

Power and efficiency

Rated power 470 Wp 515 Wp +45 W for 515W

Module efficiency 23.50 % 23.20 % +0.30 pp for 470W

Power density 235.2 Wp/m² 231.7 Wp/m² +3.5 Wp/m² for 470W

Open-circuit voltage 39.80 V 39.90 V Effectively the same

Voltage at max power 33.30 V 33.10 V Effectively the same

Short-circuit current 14.79 A 16.20 A 1.41 A apart

Current at max power 14.13 A 15.57 A 1.44 A apart

Temperature

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

Mechanical

Dimensions 1762x1134x30 mm 1960x1134x30 mm 1762x1134x30 mm vs 1960x1134x30 mm

Module area 1.998 m² 2.223 m² 0.225 m² apart

Weight 21.0 kg 23.5 kg -2.5 kg for 470W

Weight per kWp 44.7 kg/kWp 45.6 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 No No Same

Against the whole database

14,129 panels

Efficiency

#749 vs #1,349

470W leads by 600 places

Power density

#707 vs #1,491

470W leads by 784 places

Heat behaviour

#8,069 vs #8,069

Tied - the same position in the database

Weight

#504 vs #789

470W leads by 285 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#3,222 vs #2,176

515W leads by 1,046 places

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Written summary

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Questions about this pairing

Which panel is better: HT-SAAE HT54-18X(N)-470W or HT-SAAE HT54-18X(N)-515W?

According to our database: HT-SAAE HT54-18X(N)-470 W has higher module efficiency (23.50% vs 23.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of HT-SAAE HT54-18X(N)-470W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470 W has a module efficiency of 23.50%, while HT-SAAE HT54-18X(N)-515 W is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does HT-SAAE HT54-18X(N)-470W use vs HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470 W uses TOPCon cells; HT-SAAE HT54-18X(N)-515 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(N)-470W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-470 W has a 30 years power warranty; HT-SAAE HT54-18X(N)-515 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.

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.