725WT vs 720WT 19 of 19 identical Swap Change panels

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-720WT

Q: Which panel is better: Sharp GSD8K66H-725WT or Sharp GSD8K66H-720WT?

According to our database: Sharp GSD8K66H-725WT has higher module efficiency (23.34% vs 23.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Sharp GSD8K66H-725WT and Sharp GSD8K66H-720WT?

Sharp GSD8K66H-725WT has a module efficiency of 23.34%, while Sharp GSD8K66H-720WT is 23.18%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Sharp GSD8K66H-725WT use vs Sharp GSD8K66H-720WT?

Sharp GSD8K66H-725WT uses HJT cells; Sharp GSD8K66H-720WT uses HJT. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Sharp GSD8K66H-725WT and Sharp GSD8K66H-720WT?

Sharp GSD8K66H-725WT has a 30 years power warranty; Sharp GSD8K66H-720WT 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.

Q: Are Sharp GSD8K66H-725WT and Sharp GSD8K66H-720WT bifacial panels?

Both Sharp GSD8K66H-725WT and Sharp GSD8K66H-720WT 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.

Sharp

GSD8K66H-725WT

725 Wp 23.34 % HJT Bifacial

Open panel page Datasheet PDF

Sharp

GSD8K66H-720WT

720 Wp 23.18 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

Identical on every published parameter

All 19 comparable parameters agree. 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

19 of 19 comparable
parameters are identical

identical differs

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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

720WT

24,345 kWh

Lifetime gap

169 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 725WT 720WT

Standard test conditions 25 °C 100.0% of rated power 725 W 720 W

Cool, bright day 40 °C 96.1% of rated power 697 W 692 W

Typical summer roof 55 °C 92.2% of rated power 668 W 664 W

Hot roof 70 °C 88.3% of rated power 640 W 636 W

Full specification

Parameter 725WT 720WT Difference

Power and efficiency

Rated power 725 Wp 720 Wp Effectively the same

Module efficiency 23.34 % 23.18 % Effectively the same

Power density 233.4 Wp/m² 231.8 Wp/m² Effectively the same

Open-circuit voltage 51.10 V 50.90 V Effectively the same

Voltage at max power 43.20 V 43.00 V Effectively the same

Short-circuit current 17.64 A 17.60 A Effectively the same

Current at max power 16.79 A 16.75 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 54.2 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

Against the whole database

14,005 panels

Efficiency

#943 vs #1,424

725WT leads by 481 places

Power density

#936 vs #1,347

725WT leads by 411 places

Heat behaviour

#511 vs #511

Tied - the same position in the database

Weight

#7,866 vs #8,370

725WT leads by 504 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#57 vs #82

725WT leads by 25 places

More useful comparisons

Open the full database

Same series, other bin

Sharp

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-740WT

3 differences, the largest is module efficiency

Same series, other bin

Sharp

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-735WT

3 differences, the largest is module efficiency

Same series, other bin

Sharp

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-730WT

The same specification on paper

Same series, other bin

Sharp

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-715WT

3 differences, the largest is module efficiency

Same series, other bin

Sharp

Sharp GSD8K66H-725WT vs Sharp GSD8K66H-710WT

3 differences, the largest is module efficiency

Same manufacturer

Sharp

Sharp GSD8K66H-725WT vs Sharp NB-JD580

13 differences, the largest is module efficiency

Written summary

Checking cache...

Questions about this pairing

Which panel is better: Sharp GSD8K66H-725WT or Sharp GSD8K66H-720WT?

According to our database: Sharp GSD8K66H-725WT has higher module efficiency (23.34% vs 23.18%). 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-720WT?

Sharp GSD8K66H-725WT has a module efficiency of 23.34%, while Sharp GSD8K66H-720WT is 23.18%. 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-720WT?

Sharp GSD8K66H-725WT uses HJT cells; Sharp GSD8K66H-720WT 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-720WT?

Sharp GSD8K66H-725WT has a 30 years power warranty; Sharp GSD8K66H-720WT 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-720WT bifacial panels?

Both Sharp GSD8K66H-725WT and Sharp GSD8K66H-720WT 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.

Shop prices: See 6 Sharp offers

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.