500W vs 515W 14 of 19 identical Swap Change panels

HT-SAAE HT54-18X(N)-500W vs HT-SAAE HT54-18X(N)-515W

Q: Which panel is better: HT-SAAE HT54-18X(N)-500W or HT-SAAE HT54-18X(N)-515W?

According to our database: HT-SAAE HT54-18X(N)-515W has higher module efficiency (23.20% vs 22.50%). 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)-500W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500W has a module efficiency of 22.50%, 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)-500W use vs HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500W 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)-500W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500W 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)-500W

500 Wp 22.50 % TOPCon

Open panel page Datasheet PDF

HT-SAAE

HT54-18X(N)-515W

515 Wp 23.20 % TOPCon

Open panel page Datasheet PDF

The verdict

515W leads on the differences that matter

The largest is module efficiency: 0.70 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences

How alike are they

14 of 19 comparable
parameters are identical

identical differs

What actually differs

5 of 19 parameters

Parameter 500W 515W Difference

Module efficiency 22.50 % 23.20 % 0.70 pp more efficient

Power density 225.0 Wp/m² 231.7 Wp/m² 6.7 Wp/m² higher

Rated power 500 Wp 515 Wp 15 W more power

Short-circuit current 15.62 A 16.20 A 0.58 A apart

Current at max power 14.77 A 15.57 A 0.80 A apart

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.

500W

16,776 kWh

515W

17,279 kWh

Lifetime gap

503 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 500W 515W

Standard test conditions 25 °C 100.0% of rated power 500 W 515 W

Cool, bright day 40 °C 95.3% of rated power 477 W 491 W

Typical summer roof 55 °C 90.7% of rated power 454 W 467 W

Hot roof 70 °C 86.0% of rated power 430 W 443 W

Full specification

Parameter 500W 515W Difference

Power and efficiency

Rated power 500 Wp 515 Wp +15 W for 515W

Module efficiency 22.50 % 23.20 % +0.70 pp for 515W

Power density 225.0 Wp/m² 231.7 Wp/m² +6.7 Wp/m² for 515W

Open-circuit voltage 40.10 V 39.90 V Effectively the same

Voltage at max power 33.90 V 33.10 V Effectively the same

Short-circuit current 15.62 A 16.20 A 0.58 A apart

Current at max power 14.77 A 15.57 A 0.80 A apart

Temperature

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

Mechanical

Dimensions 1960x1134x30 mm 1960x1134x30 mm Same

Module area 2.223 m² 2.223 m² Same

Weight 23.5 kg 23.5 kg Same

Weight per kWp 47.0 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

#4,281 vs #1,349

515W leads by 2,932 places

Power density

#4,510 vs #1,491

515W leads by 3,019 places

Heat behaviour

#8,069 vs #8,069

Tied - the same position in the database

Weight

#1,450 vs #789

515W leads by 661 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#3,428 vs #2,176

515W leads by 1,252 places

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Written summary

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Questions about this pairing

Which panel is better: HT-SAAE HT54-18X(N)-500W or HT-SAAE HT54-18X(N)-515W?

According to our database: HT-SAAE HT54-18X(N)-515 W has higher module efficiency (23.20% vs 22.50%). 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)-500W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500 W has a module efficiency of 22.50%, 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)-500W use vs HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500 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)-500W and HT-SAAE HT54-18X(N)-515W?

HT-SAAE HT54-18X(N)-500 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.