MS740N-HJTGB vs GSD8K66H-735WT 16 of 18 identical Swap Change panels

MY Solar MS740N-HJTGB vs Sharp GSD8K66H-735WT

Q: Which panel is better: MY Solar MS740N-HJTGB or Sharp GSD8K66H-735WT?

According to our database: MY Solar MS740N-HJTGB has higher module efficiency (23.82% vs 23.66%); MY Solar MS740N-HJTGB tolerates heat better (temp coeff -0.240%/°C vs -0.260%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT?

MY Solar MS740N-HJTGB has a module efficiency of 23.82%, 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 MY Solar MS740N-HJTGB use vs Sharp GSD8K66H-735WT?

MY Solar MS740N-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 MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT?

MY Solar MS740N-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 MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT bifacial panels?

Both MY Solar MS740N-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.

MY Solar

MS740N-HJTGB

740 Wp 23.82 % HJT Bifacial Incomplete

Open panel page Datasheet PDF

Sharp

GSD8K66H-735WT

735 Wp 23.66 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

MS740N-HJTGB leads on the differences that matter

The largest is product warranty: 5 yrs longer. 16 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 2 differences

How alike are they

16 of 18 comparable
parameters are identical

identical differs not published

What actually differs

2 of 18 parameters

Parameter MS740N-HJTGB GSD8K66H-735WT Difference

Product warranty 30 yrs 25 yrs 5 yrs longer

Temperature coefficient -0.240 %/°C -0.260 %/°C 0.020 %/°C better in heat

What it means on a roof

Thirty years of production

A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year

Cell temperature

MS740N-HJTGB

24,828 kWh

GSD8K66H-735WT

24,661 kWh

Lifetime gap

167 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario MS740N-HJTGB GSD8K66H-735WT

Standard test conditions 25 °C 100.0% of rated power 740 W 735 W

Cool, bright day 40 °C 96.1% of rated power 713 W 706 W

Typical summer roof 55 °C 92.2% of rated power 687 W 678 W

Hot roof 70 °C 88.3% of rated power 660 W 649 W

Full specification

Parameter MS740N-HJTGB GSD8K66H-735WT Difference

Power and efficiency

Rated power 740 Wp 735 Wp Effectively the same

Module efficiency 23.82 % 23.66 % Effectively the same

Power density 238.2 Wp/m² 236.6 Wp/m² Effectively the same

Open-circuit voltage 51.35 V 51.50 V Effectively the same

Voltage at max power 43.25 V 43.60 V Effectively the same

Short-circuit current 17.95 A 17.72 A Effectively the same

Current at max power 17.13 A 16.87 A Effectively the same

Temperature

Temperature coefficient -0.240 %/°C -0.260 %/°C +0.020 %/°C for MS740N-HJTGB

Mechanical

Dimensions 2384x1303x35 mm 2384x1303x35 mm Same

Module area 3.106 m² 3.106 m² Same

Weight 38.3 kg 39.0 kg Effectively the same

Weight per kWp 51.8 kg/kWp 53.1 kg/kWp Effectively the same

Warranty and degradation

Product warranty 30 yrs 25 yrs +5 yrs for MS740N-HJTGB

Performance warranty 30 yrs 30 yrs Same

Annual degradation - 0.35 %/yr Not published by MY Solar

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

#418 vs #602

MS740N-HJTGB leads by 184 places

Power density

#431 vs #582

MS740N-HJTGB leads by 151 places

Heat behaviour

#13 vs #511

MS740N-HJTGB leads by 498 places

Weight

#5,125 vs #6,818

MS740N-HJTGB leads by 1,693 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#3 vs #21

MS740N-HJTGB leads by 18 places

More useful comparisons

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Sharp

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Written summary

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Questions about this pairing

Which panel is better: MY Solar MS740N-HJTGB or Sharp GSD8K66H-735WT?

According to our database: MY Solar MS740N-HJTGB has higher module efficiency (23.82% vs 23.66%); MY Solar MS740N-HJTGB tolerates heat better (temp coeff -0.240%/°C vs -0.260%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT?

MY Solar MS740N-HJTGB has a module efficiency of 23.82%, 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 MY Solar MS740N-HJTGB use vs Sharp GSD8K66H-735WT?

MY Solar MS740N-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 MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT?

MY Solar MS740N-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 MY Solar MS740N-HJTGB and Sharp GSD8K66H-735WT bifacial panels?

Both MY Solar MS740N-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 MY Solar 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.