740 vs 725 15 of 18 identical Swap Change panels

Sunplus 740 vs Sunplus 725

Q: Which panel is better: Sunplus 740 or Sunplus 725?

According to our database: Sunplus 740 has higher module efficiency (23.80% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Sunplus 740 and Sunplus 725?

Sunplus 740 has a module efficiency of 23.80%, while Sunplus 725 is 23.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Sunplus 740 use vs Sunplus 725?

Sunplus 740 uses HJT cells; Sunplus 725 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 Sunplus 740 and Sunplus 725?

Sunplus 740 has a 30 years power warranty; Sunplus 725 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 Sunplus 740 and Sunplus 725 bifacial panels?

Both Sunplus 740 and Sunplus 725 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.

Sunplus

740

740 Wp 23.80 % HJT Bifacial

Open panel page Datasheet PDF

Sunplus

725

725 Wp 23.30 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

740 leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences

How alike are they

15 of 18 comparable
parameters are identical

identical differs not published

What actually differs

3 of 18 parameters

Parameter 740 725 Difference

Module efficiency 23.80 % 23.30 % 0.50 pp more efficient

Power density 238.2 Wp/m² 233.4 Wp/m² 4.8 Wp/m² higher

Rated power 740 Wp 725 Wp 15 W more power

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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

740

25,176 kWh

725

24,666 kWh

Lifetime gap

510 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 740 725

Standard test conditions 25 °C 100.0% of rated power 740 W 725 W

Cool, bright day 40 °C 95.5% of rated power 707 W 692 W

Typical summer roof 55 °C 91.0% of rated power 673 W 660 W

Hot roof 70 °C 86.5% of rated power 640 W 627 W

Full specification

Parameter 740 725 Difference

Power and efficiency

Rated power 740 Wp 725 Wp +15 W for 740

Module efficiency 23.80 % 23.30 % +0.50 pp for 740

Power density 238.2 Wp/m² 233.4 Wp/m² +4.8 Wp/m² for 740

Open-circuit voltage 51.01 V 50.98 V Effectively the same

Voltage at max power 43.78 V 43.66 V Effectively the same

Short-circuit current 17.70 A 17.64 A Effectively the same

Current at max power 16.78 A 16.61 A Effectively the same

Temperature

Temperature coefficient -0.300 %/°C -0.300 %/°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 52.7 kg/kWp 53.8 kg/kWp Effectively the same

Warranty and degradation

Product warranty - - Neither datasheet publishes this

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.31 %/yr 0.31 %/yr Same

Technology

Cell technology HJT HJT Same

Cell type Monocrystalline Monocrystalline Same

Cell count 156 156 Same

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#433 vs #1,017

740 leads by 584 places

Power density

#431 vs #936

740 leads by 505 places

Heat behaviour

#6,093 vs #6,093

Tied - the same position in the database

Weight

#6,344 vs #7,866

740 leads by 1,522 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#1,031 vs #1,517

740 leads by 486 places

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Written summary

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Questions about this pairing

Which panel is better: Sunplus 740 or Sunplus 725?

According to our database: Sunplus 740 has higher module efficiency (23.80% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Sunplus 740 and Sunplus 725?

Sunplus 740 has a module efficiency of 23.80%, while Sunplus 725 is 23.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Sunplus 740 use vs Sunplus 725?

Sunplus 740 uses HJT cells; Sunplus 725 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 Sunplus 740 and Sunplus 725?

Sunplus 740 has a 30 years power warranty; Sunplus 725 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 Sunplus 740 and Sunplus 725 bifacial panels?

Both Sunplus 740 and Sunplus 725 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 7 Sunplus 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.