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210(ND)-F 715W vs 18X(N)-625W 10 of 19 identical Swap Change panels

HT-SAAE HT66-210(ND)-F 715W vs HT-SAAE HT66-18X(N)-625W

HT-SAAE HT66-210(ND)-F 715W
HT-SAAE
HT66-210(ND)-F 715W
715 Wp 23.00 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
HT-SAAE
HT66-18X(N)-625W
625 Wp 23.10 % TOPCon
Open panel page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is rated power: 90 W more power. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter 210(ND)-F 715W 18X(N)-625W Difference
Rated power 715 Wp 625 Wp 90 W more power
Weight 38.5 kg 29.0 kg 9.5 kg lighter
Weight per kWp 53.8 kg/kWp 46.4 kg/kWp 7.4 kg/kWp lighter
Short-circuit current 18.49 A 16.20 A 2.29 A apart
Module area 3.106 m² 2.701 m² 0.405 m² apart
Current at max power 17.24 A 15.48 A 1.76 A apart
Bifacial Yes No Yes vs No
Dimensions 2384x1303x35 mm 2382x1134x35 mm 2384x1303x35 mm vs 2382x1134x35 mm
Voltage at max power 41.50 V 40.40 V 1.10 V apart
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.
210(ND)-F 715W
23,990 kWh
18X(N)-625W
20,970 kWh
Lifetime gap
3,020 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 210(ND)-F 715W 18X(N)-625W
Standard test conditions 25 °C 100.0% of rated power 715 W 625 W
Cool, bright day 40 °C 95.3% of rated power 682 W 596 W
Typical summer roof 55 °C 90.7% of rated power 649 W 567 W
Hot roof 70 °C 86.0% of rated power 615 W 538 W
03

Full specification

Parameter 210(ND)-F 715W 18X(N)-625W Difference
Power and efficiency
Rated power 715 Wp 625 Wp +90 W for 210(ND)-F 715W
Module efficiency 23.00 % 23.10 % Effectively the same
Power density 230.2 Wp/m² 231.4 Wp/m² Effectively the same
Open-circuit voltage 48.40 V 48.50 V Effectively the same
Voltage at max power 41.50 V 40.40 V 1.10 V apart
Short-circuit current 18.49 A 16.20 A 2.29 A apart
Current at max power 17.24 A 15.48 A 1.76 A apart
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 2384x1303x35 mm 2382x1134x35 mm 2384x1303x35 mm vs 2382x1134x35 mm
Module area 3.106 m² 2.701 m² 0.405 m² apart
Weight 38.5 kg 29.0 kg -9.5 kg for 18X(N)-625W
Weight per kWp 53.8 kg/kWp 46.4 kg/kWp -7.4 kg/kWp for 18X(N)-625W
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 132 132 Same
Bifacial Yes No Yes vs No
04

Against the whole database

14,129 panels
Efficiency
#1,970 vs #1,617
18X(N)-625W leads by 353 places
Power density
#2,070 vs #1,558
18X(N)-625W leads by 512 places
Heat behaviour
#8,069 vs #8,069
Tied - the same position in the database
Weight
#7,974 vs #1,141
18X(N)-625W leads by 6,833 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#43 vs #399
210(ND)-F 715W leads by 356 places
05

More useful comparisons

Open the full database
Same series, other bin
HT-SAAE
HT-SAAE HT66-210(ND)-F 715W vs HT-SAAE HT66-210(ND)-F 710W
The same specification on paper
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HT-SAAE HT66-210(ND)-F 715W vs HT-SAAE HT66-210(ND)-F 705W
3 differences, the largest is module efficiency
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HT-SAAE HT66-210(ND)-F 715W vs HT-SAAE HT66-210(ND)-F 700W
3 differences, the largest is module efficiency
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HT-SAAE HT66-210(ND)-F 715W vs HT-SAAE HT66-210(ND)-F 695W
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(N)-625W vs HT-SAAE HT66-18X(N)-630W
One difference: module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(N)-625W vs HT-SAAE HT66-18X(ND)-F 620W
3 differences, the largest is weight
06

Written summary

07

Questions about this pairing

Which panel is better: HT-SAAE HT66-210(ND)-F 715W or HT-SAAE HT66-18X(N)-625W?
According to our database: HT-SAAE HT66-18X(N)-625 W has higher module efficiency (23.10% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of HT-SAAE HT66-210(ND)-F 715W and HT-SAAE HT66-18X(N)-625W?
HT-SAAE HT66-210(ND)-F 715 W has a module efficiency of 23.00%, while HT-SAAE HT66-18X(N)-625 W is 23.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does HT-SAAE HT66-210(ND)-F 715W use vs HT-SAAE HT66-18X(N)-625W?
HT-SAAE HT66-210(ND)-F 715 W uses TOPCon cells; HT-SAAE HT66-18X(N)-625 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 HT66-210(ND)-F 715W and HT-SAAE HT66-18X(N)-625W?
HT-SAAE HT66-210(ND)-F 715 W has a 30 years power warranty; HT-SAAE HT66-18X(N)-625 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 HT66-210(ND)-F 715W and HT-SAAE HT66-18X(N)-625W bifacial panels?
HT-SAAE HT66-210(ND)-F 715 W is bifacial (captures light from both faces); HT-SAAE HT66-18X(N)-625 W is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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.