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445W vs 435W 15 of 19 identical Swap Change panels

HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 435W

HT-SAAE HT54-18X(ND)-F 445W
HT-SAAE
HT54-18X(ND)-F 445W
445 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
HT-SAAE HT54-18X(ND)-F 435W
HT-SAAE
HT54-18X(ND)-F 435W
435 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

4 differences, and they point both ways

The largest is module area: 0.045 m² apart. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter 445W 435W Difference
Module area 1.998 m² 1.953 m² 0.045 m² apart
Rated power 445 Wp 435 Wp 10 W more power
Weight 25.0 kg 24.0 kg 1.0 kg lighter
Dimensions 1762x1134x30 mm 1722x1134x30 mm 1762x1134x30 mm vs 1722x1134x30 mm
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
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.
445W
14,931 kWh
435W
14,595 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 445W 435W
Standard test conditions 25 °C 100.0% of rated power 445 W 435 W
Cool, bright day 40 °C 95.3% of rated power 424 W 415 W
Typical summer roof 55 °C 90.7% of rated power 404 W 395 W
Hot roof 70 °C 86.0% of rated power 383 W 374 W
03

Full specification

Parameter 445W 435W Difference
Power and efficiency
Rated power 445 Wp 435 Wp +10 W for 445W
Module efficiency 22.30 % 22.30 % Same
Power density 222.7 Wp/m² 222.8 Wp/m² Effectively the same
Open-circuit voltage 38.70 V 38.40 V Effectively the same
Voltage at max power 32.40 V 32.00 V Effectively the same
Short-circuit current 14.47 A 14.31 A Effectively the same
Current at max power 13.76 A 13.60 A Effectively the same
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1722x1134x30 mm 1762x1134x30 mm vs 1722x1134x30 mm
Module area 1.998 m² 1.953 m² 0.045 m² apart
Weight 25.0 kg 24.0 kg -1.0 kg for 435W
Weight per kWp 56.2 kg/kWp 55.2 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
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #5,100
Tied - the same position in the database
Power density
#5,302 vs #5,150
435W leads by 152 places
Heat behaviour
#8,005 vs #8,005
Tied - the same position in the database
Weight
#10,457 vs #9,588
435W leads by 869 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,606 vs #5,929
445W leads by 323 places
05

More useful comparisons

Open the full database
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 460W
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 455W
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 450W
One difference: module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 440W
One difference: module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 430W
5 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT54-18X(ND)-F 445W vs HT-SAAE HT54-18X(ND)-F 425W
6 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: HT-SAAE HT54-18X(ND)-F 445W or HT-SAAE HT54-18X(ND)-F 435W?
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 HT54-18X(ND)-F 445W and HT-SAAE HT54-18X(ND)-F 435W?
HT-SAAE HT54-18X(ND)-F 445 W has a module efficiency of 22.30%, while HT-SAAE HT54-18X(ND)-F 435 W is 22.30%. 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 445W use vs HT-SAAE HT54-18X(ND)-F 435W?
HT-SAAE HT54-18X(ND)-F 445 W uses TOPCon cells; HT-SAAE HT54-18X(ND)-F 435 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 445W and HT-SAAE HT54-18X(ND)-F 435W?
HT-SAAE HT54-18X(ND)-F 445 W has a 30 years power warranty; HT-SAAE HT54-18X(ND)-F 435 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 445W and HT-SAAE HT54-18X(ND)-F 435W bifacial panels?
Both HT-SAAE HT54-18X(ND)-F 445 W and HT-SAAE HT54-18X(ND)-F 435 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.