MS720N-HJTGB vs GSD8K66H-735WT 14 of 19 identical Swap Change panels

Mysolar USA MS720N-HJTGB vs Sharp GSD8K66H-735WT

Q: Which panel is better: Mysolar USA MS720N-HJTGB or Sharp GSD8K66H-735WT?

According to our database: Sharp GSD8K66H-735WT has higher module efficiency (23.66% vs 23.17%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB has a module efficiency of 23.17%, while Sharp GSD8K66H-735WT is 23.66%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Mysolar USA MS720N-HJTGB use vs Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB uses HJT cells; Sharp GSD8K66H-735WT 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 Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB has a 30 years power warranty; Sharp GSD8K66H-735WT 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 Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT bifacial panels?

Both Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT 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.

Mysolar USA

MS720N-HJTGB

720 Wp 23.17 % HJT Bifacial

Open panel page Datasheet PDF

Sharp

GSD8K66H-735WT

735 Wp 23.66 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

5 differences, and they point both ways

The largest is module efficiency: 0.49 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences

How alike are they

14 of 19 comparable
parameters are identical

identical differs

What actually differs

5 of 19 parameters

Parameter MS720N-HJTGB GSD8K66H-735WT Difference

Module efficiency 23.17 % 23.66 % 0.49 pp more efficient

Product warranty 30 yrs 25 yrs 5 yrs longer

Annual degradation 0.25 %/yr 0.35 %/yr 0.10 %/yr slower

Power density 231.8 Wp/m² 236.6 Wp/m² 4.8 Wp/m² higher

Rated power 720 Wp 735 Wp 15 W more power

What it means on a roof

Thirty years of production

Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, 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.

MS720N-HJTGB

24,721 kWh

GSD8K66H-735WT

24,853 kWh

Lifetime gap

132 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario MS720N-HJTGB GSD8K66H-735WT

Standard test conditions 25 °C 100.0% of rated power 720 W 735 W

Cool, bright day 40 °C 96.1% of rated power 692 W 706 W

Typical summer roof 55 °C 92.2% of rated power 664 W 678 W

Hot roof 70 °C 88.3% of rated power 636 W 649 W

Full specification

Parameter MS720N-HJTGB GSD8K66H-735WT Difference

Power and efficiency

Rated power 720 Wp 735 Wp +15 W for GSD8K66H-735WT

Module efficiency 23.17 % 23.66 % +0.49 pp for GSD8K66H-735WT

Power density 231.8 Wp/m² 236.6 Wp/m² +4.8 Wp/m² for GSD8K66H-735WT

Open-circuit voltage 50.75 V 51.50 V Effectively the same

Voltage at max power 42.70 V 43.60 V Effectively the same

Short-circuit current 17.67 A 17.72 A Effectively the same

Current at max power 16.87 A 16.87 A 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 38.8 kg 39.0 kg Effectively the same

Weight per kWp 53.9 kg/kWp 53.1 kg/kWp Effectively the same

Warranty and degradation

Product warranty 30 yrs 25 yrs +5 yrs for MS720N-HJTGB

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.25 %/yr 0.35 %/yr -0.10 %/yr for MS720N-HJTGB

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

#1,473 vs #602

GSD8K66H-735WT leads by 871 places

Power density

#1,347 vs #582

GSD8K66H-735WT leads by 765 places

Heat behaviour

#511 vs #511

Tied - the same position in the database

Weight

#8,017 vs #6,818

GSD8K66H-735WT leads by 1,199 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#27 vs #21

GSD8K66H-735WT leads by 6 places

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Written summary

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Questions about this pairing

Which panel is better: Mysolar USA MS720N-HJTGB or Sharp GSD8K66H-735WT?

According to our database: Sharp GSD8K66H-735WT has higher module efficiency (23.66% vs 23.17%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB has a module efficiency of 23.17%, while Sharp GSD8K66H-735WT is 23.66%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Mysolar USA MS720N-HJTGB use vs Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB uses HJT cells; Sharp GSD8K66H-735WT 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 Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT?

Mysolar USA MS720N-HJTGB has a 30 years power warranty; Sharp GSD8K66H-735WT 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 Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT bifacial panels?

Both Mysolar USA MS720N-HJTGB and Sharp GSD8K66H-735WT 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.

Compare Mysolar USA and Sharp as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.