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725WT vs 715WT 16 of 19 identical Swap Change panels

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-715WT

Sharp GSD8K66H-725WT
Sharp
GSD8K66H-725WT
725 Wp 23.34 % HJT Bifacial
Open panel page Datasheet PDF
VS
Sharp GSD8K66H-715WT
Sharp
GSD8K66H-715WT
715 Wp 23.02 % HJT Bifacial
Open panel page Datasheet PDF
The verdict

725WT leads on the differences that matter

The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 725WT 715WT Difference
Module efficiency 23.34 % 23.02 % 0.32 pp more efficient
Power density 233.4 Wp/m² 230.2 Wp/m² 3.2 Wp/m² higher
Rated power 725 Wp 715 Wp 10 W more power
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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
725WT
24,514 kWh
715WT
24,176 kWh
Lifetime gap
338 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 725WT 715WT
Standard test conditions 25 °C 100.0% of rated power 725 W 715 W
Cool, bright day 40 °C 96.1% of rated power 697 W 687 W
Typical summer roof 55 °C 92.2% of rated power 668 W 659 W
Hot roof 70 °C 88.3% of rated power 640 W 631 W
03

Full specification

Parameter 725WT 715WT Difference
Power and efficiency
Rated power 725 Wp 715 Wp +10 W for 725WT
Module efficiency 23.34 % 23.02 % +0.32 pp for 725WT
Power density 233.4 Wp/m² 230.2 Wp/m² +3.2 Wp/m² for 725WT
Open-circuit voltage 51.10 V 50.70 V Effectively the same
Voltage at max power 43.20 V 42.80 V Effectively the same
Short-circuit current 17.64 A 17.56 A Effectively the same
Current at max power 16.79 A 16.71 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 2384x1303x35 mm 2384x1303x35 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 39.0 kg 39.0 kg Same
Weight per kWp 53.8 kg/kWp 54.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.35 %/yr Same
Technology
Cell technology HJT HJT Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#943 vs #1,797
725WT leads by 854 places
Power density
#936 vs #2,018
725WT leads by 1,082 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#7,866 vs #8,872
725WT leads by 1,006 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#57 vs #112
725WT leads by 55 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Sharp GSD8K66H-725WT or Sharp GSD8K66H-715WT?
According to our database: Sharp GSD8K66H-725WT has higher module efficiency (23.34% vs 23.02%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sharp GSD8K66H-725WT and Sharp GSD8K66H-715WT?
Sharp GSD8K66H-725WT has a module efficiency of 23.34%, while Sharp GSD8K66H-715WT is 23.02%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sharp GSD8K66H-725WT use vs Sharp GSD8K66H-715WT?
Sharp GSD8K66H-725WT uses HJT cells; Sharp GSD8K66H-715WT uses HJT. 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 Sharp GSD8K66H-725WT and Sharp GSD8K66H-715WT?
Sharp GSD8K66H-725WT has a 30 years power warranty; Sharp GSD8K66H-715WT 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 Sharp GSD8K66H-725WT and Sharp GSD8K66H-715WT bifacial panels?
Both Sharp GSD8K66H-725WT and Sharp GSD8K66H-715WT 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.

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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.