HT-SAAE HT72-18X-555W vs HT-SAAE HT72-18X 555W
VS
The verdict
Identical on every published parameter
All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
18
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
0 of 18 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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-555W
18,322 kWh
18X 555W
18,322 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
18X-555W
18X 555W
Standard test conditions
25 °C
100.0% of rated power
555 W
555 W
Cool, bright day
40 °C
95.0% of rated power
528 W
528 W
Typical summer roof
55 °C
90.1% of rated power
500 W
500 W
Hot roof
70 °C
85.2% of rated power
473 W
473 W
03
Full specification
Parameter
18X-555W
18X 555W
Difference
Power and efficiency
Rated power
555 Wp
555 Wp
Same
Module efficiency
21.50 %
21.50 %
Same
Power density
214.8 Wp/m²
214.8 Wp/m²
Same
Open-circuit voltage
49.95 V
49.95 V
Same
Voltage at max power
42.10 V
42.10 V
Same
Short-circuit current
14.07 A
14.07 A
Same
Current at max power
13.20 A
13.20 A
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
51.4 kg/kWp
51.4 kg/kWp
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
14,005 panels
Against the whole database
Efficiency
#7,958
vs
#7,958
Tied - the same position in the database
Power density
#8,148
vs
#8,148
Tied - the same position in the database
Heat behaviour
#8,545
vs
#8,545
Tied - the same position in the database
Weight
#4,712
vs
#4,712
Tied - the same position in the database
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#4,808
vs
#4,808
Tied - the same position in the database
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: HT-SAAE HT72-18X-555W or HT-SAAE HT72-18X 555W?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of HT-SAAE HT72-18X-555W and HT-SAAE HT72-18X 555W?
HT-SAAE HT72-18X-555 W has a module efficiency of 21.50%, while HT-SAAE HT72-18X 555 W is 21.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does HT-SAAE HT72-18X-555W use vs HT-SAAE HT72-18X 555W?
HT-SAAE HT72-18X-555 W uses PERC cells; HT-SAAE HT72-18X 555 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-555W and HT-SAAE HT72-18X 555W?
HT-SAAE HT72-18X-555 W has a 25 years power warranty; HT-SAAE HT72-18X 555 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.