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18X 560W vs 18X-550W 15 of 18 identical Swap Change panels

HT-SAAE HT72-18X 560W vs HT-SAAE HT72-18X-550W

HT-SAAE
HT72-18X 560W
560 Wp 21.70 % PERC Incomplete
Open panel page Datasheet PDF
VS
HT-SAAE
HT72-18X-550W
550 Wp 21.30 % PERC
Open panel page Datasheet PDF
The verdict

18X 560W leads on the differences that matter

The largest is module efficiency: 0.40 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences
How alike are they
15 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 18 parameters
Parameter 18X 560W 18X-550W Difference
Module efficiency 21.70 % 21.30 % 0.40 pp more efficient
Power density 216.7 Wp/m² 212.8 Wp/m² 3.9 Wp/m² higher
Rated power 560 Wp 550 Wp 10 W more power
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.330 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
18X 560W
18,487 kWh
18X-550W
18,157 kWh
Lifetime gap
330 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 18X 560W 18X-550W
Standard test conditions 25 °C 100.0% of rated power 560 W 550 W
Cool, bright day 40 °C 95.0% of rated power 532 W 523 W
Typical summer roof 55 °C 90.1% of rated power 505 W 496 W
Hot roof 70 °C 85.2% of rated power 477 W 468 W
03

Full specification

Parameter 18X 560W 18X-550W Difference
Power and efficiency
Rated power 560 Wp 550 Wp +10 W for 18X 560W
Module efficiency 21.70 % 21.30 % +0.40 pp for 18X 560W
Power density 216.7 Wp/m² 212.8 Wp/m² +3.9 Wp/m² for 18X 560W
Open-circuit voltage 50.10 V 49.80 V Effectively the same
Voltage at max power 42.25 V 41.95 V Effectively the same
Short-circuit current 14.14 A 14.00 A Effectively the same
Current at max power 13.27 A 13.12 A Effectively the same
Temperature
Temperature coefficient -0.330 %/°C -0.330 %/°C Same
Mechanical
Dimensions 2279x1134x35 mm 2279x1134x35 mm Same
Module area 2.584 m² 2.584 m² Same
Weight 28.5 kg 28.5 kg Same
Weight per kWp 50.9 kg/kWp 51.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation - 0.60 %/yr Not published by HT-SAAE
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#7,421 vs #8,519
18X 560W leads by 1,098 places
Power density
#7,538 vs #8,643
18X 560W leads by 1,105 places
Heat behaviour
#8,545 vs #8,545
Tied - the same position in the database
Weight
#4,264 vs #5,204
18X 560W leads by 940 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#4,387 vs #5,197
18X 560W leads by 810 places
05

More useful comparisons

Open the full database
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HT-SAAE HT72-18X 560W vs HT-SAAE HT72-18X 555W
One difference: module efficiency
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HT-SAAE HT72-18X 560W vs HT-SAAE HT72-18X 550W
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HT-SAAE HT72-18X 560W vs HT-SAAE HT72-18X 540W
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HT-SAAE HT72-18X-550W vs HT-SAAE HT72-18X-560W
4 differences, the largest is module efficiency
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HT-SAAE HT72-18X-550W vs HT-SAAE HT72-18X-555W
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: HT-SAAE HT72-18X 560W or HT-SAAE HT72-18X-550W?
According to our database: HT-SAAE HT72-18X 560 W has higher module efficiency (21.70% vs 21.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of HT-SAAE HT72-18X 560W and HT-SAAE HT72-18X-550W?
HT-SAAE HT72-18X 560 W has a module efficiency of 21.70%, while HT-SAAE HT72-18X-550 W is 21.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does HT-SAAE HT72-18X 560W use vs HT-SAAE HT72-18X-550W?
HT-SAAE HT72-18X 560 W uses PERC cells; HT-SAAE HT72-18X-550 W 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 HT-SAAE HT72-18X 560W and HT-SAAE HT72-18X-550W?
HT-SAAE HT72-18X 560 W has a 25 years power warranty; HT-SAAE HT72-18X-550 W 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.

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.