MS730N-HJTGB vs MS705N-HJTGB 13 of 18 identical Swap Change panels

MY Solar MS730N-HJTGB vs MY Solar MS705N-HJTGB

Q: Which panel is better: MY Solar MS730N-HJTGB or MY Solar MS705N-HJTGB?

According to our database: MY Solar MS730N-HJTGB has higher module efficiency (23.50% vs 22.69%); MY Solar MS730N-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 MS730N-HJTGB and MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB has a module efficiency of 23.50%, while MY Solar MS705N-HJTGB is 22.69%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does MY Solar MS730N-HJTGB use vs MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB uses HJT cells; MY Solar MS705N-HJTGB 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 MS730N-HJTGB and MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB has a 30 years power warranty; MY Solar MS705N-HJTGB 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 MS730N-HJTGB and MY Solar MS705N-HJTGB bifacial panels?

Both MY Solar MS730N-HJTGB and MY Solar MS705N-HJTGB 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

MS730N-HJTGB

730 Wp 23.50 % HJT Bifacial Incomplete

Open panel page Datasheet PDF

MY Solar

MS705N-HJTGB

705 Wp 22.69 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

MS730N-HJTGB leads on the differences that matter

The largest is module efficiency: 0.81 pp more efficient. 13 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 5 differences

How alike are they

13 of 18 comparable
parameters are identical

identical differs not published

What actually differs

5 of 18 parameters

Parameter MS730N-HJTGB MS705N-HJTGB Difference

Module efficiency 23.50 % 22.69 % 0.81 pp more efficient

Power density 235.0 Wp/m² 227.0 Wp/m² 8.0 Wp/m² higher

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

Rated power 730 Wp 705 Wp 25 W more power

Weight per kWp 52.5 kg/kWp 55.0 kg/kWp 2.6 kg/kWp lighter

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

MS730N-HJTGB

24,493 kWh

MS705N-HJTGB

23,654 kWh

Lifetime gap

839 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario MS730N-HJTGB MS705N-HJTGB

Standard test conditions 25 °C 100.0% of rated power 730 W 705 W

Cool, bright day 40 °C 96.1% of rated power 704 W 678 W

Typical summer roof 55 °C 92.2% of rated power 677 W 650 W

Hot roof 70 °C 88.3% of rated power 651 W 623 W

Full specification

Parameter MS730N-HJTGB MS705N-HJTGB Difference

Power and efficiency

Rated power 730 Wp 705 Wp +25 W for MS730N-HJTGB

Module efficiency 23.50 % 22.69 % +0.81 pp for MS730N-HJTGB

Power density 235.0 Wp/m² 227.0 Wp/m² +8.0 Wp/m² for MS730N-HJTGB

Open-circuit voltage 51.05 V 50.29 V Effectively the same

Voltage at max power 42.97 V 42.25 V Effectively the same

Short-circuit current 17.81 A 17.49 A Effectively the same

Current at max power 16.99 A 16.69 A Effectively the same

Temperature

Temperature coefficient -0.240 %/°C -0.260 %/°C +0.020 %/°C for MS730N-HJTGB

Mechanical

Dimensions 2384x1303x35 mm 2384x1303x35 mm Same

Module area 3.106 m² 3.106 m² Same

Weight 38.3 kg 38.8 kg Effectively the same

Weight per kWp 52.5 kg/kWp 55.0 kg/kWp -2.6 kg/kWp for MS730N-HJTGB

Warranty and degradation

Product warranty 30 yrs 30 yrs Same

Performance warranty 30 yrs 30 yrs Same

Annual degradation - 0.25 %/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

#716 vs #3,496

MS730N-HJTGB leads by 2,780 places

Power density

#800 vs #3,361

MS730N-HJTGB leads by 2,561 places

Heat behaviour

#13 vs #511

MS730N-HJTGB leads by 498 places

Weight

#5,993 vs #9,420

MS730N-HJTGB leads by 3,427 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#8 vs #89

MS730N-HJTGB leads by 81 places

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Written summary

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Questions about this pairing

Which panel is better: MY Solar MS730N-HJTGB or MY Solar MS705N-HJTGB?

According to our database: MY Solar MS730N-HJTGB has higher module efficiency (23.50% vs 22.69%); MY Solar MS730N-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 MS730N-HJTGB and MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB has a module efficiency of 23.50%, while MY Solar MS705N-HJTGB is 22.69%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does MY Solar MS730N-HJTGB use vs MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB uses HJT cells; MY Solar MS705N-HJTGB 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 MS730N-HJTGB and MY Solar MS705N-HJTGB?

MY Solar MS730N-HJTGB has a 30 years power warranty; MY Solar MS705N-HJTGB 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 MS730N-HJTGB and MY Solar MS705N-HJTGB bifacial panels?

Both MY Solar MS730N-HJTGB and MY Solar MS705N-HJTGB 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.

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.