720 vs 730 16 of 19 identical Swap Change panels

BYD HSBK-33-720 vs BYD HSBK-33-730

Q: Which panel is better: BYD HSBK-33-720 or BYD HSBK-33-730?

According to our database: BYD HSBK-33-730 has higher module efficiency (23.50% vs 23.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of BYD HSBK-33-720 and BYD HSBK-33-730?

BYD HSBK-33-720 has a module efficiency of 23.18%, while BYD HSBK-33-730 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does BYD HSBK-33-720 use vs BYD HSBK-33-730?

BYD HSBK-33-720 uses HJT cells; BYD HSBK-33-730 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 BYD HSBK-33-720 and BYD HSBK-33-730?

BYD HSBK-33-720 has a 30 years power warranty; BYD HSBK-33-730 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 BYD HSBK-33-720 and BYD HSBK-33-730 bifacial panels?

Both BYD HSBK-33-720 and BYD HSBK-33-730 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.

BYD

HSBK-33-720

720 Wp 23.18 % HJT Bifacial

Open panel page Datasheet PDF

BYD

HSBK-33-730

730 Wp 23.50 % HJT Bifacial

Open panel page Datasheet PDF

The verdict

730 leads on the differences that matter

The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences

How alike are they

16 of 19 comparable
parameters are identical

identical differs

What actually differs

3 of 19 parameters

Parameter 720 730 Difference

Module efficiency 23.18 % 23.50 % 0.32 pp more efficient

Power density 231.8 Wp/m² 235.0 Wp/m² 3.2 Wp/m² higher

Rated power 720 Wp 730 Wp 10 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 (-0.240 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

720

24,157 kWh

730

24,493 kWh

Lifetime gap

336 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 720 730

Standard test conditions 25 °C 100.0% of rated power 720 W 730 W

Cool, bright day 40 °C 96.4% of rated power 694 W 704 W

Typical summer roof 55 °C 92.8% of rated power 668 W 677 W

Hot roof 70 °C 89.2% of rated power 642 W 651 W

Full specification

Parameter 720 730 Difference

Power and efficiency

Rated power 720 Wp 730 Wp +10 W for 730

Module efficiency 23.18 % 23.50 % +0.32 pp for 730

Power density 231.8 Wp/m² 235.0 Wp/m² +3.2 Wp/m² for 730

Open-circuit voltage 50.17 V 50.37 V Effectively the same

Voltage at max power 42.14 V 42.32 V Effectively the same

Short-circuit current 18.17 A 18.35 A Effectively the same

Current at max power 17.10 A 17.26 A Effectively the same

Temperature

Temperature coefficient -0.240 %/°C -0.240 %/°C Same

Mechanical

Dimensions 2384x1303x33 mm 2384x1303x33 mm Same

Module area 3.106 m² 3.106 m² Same

Weight 38.3 kg 38.3 kg Same

Weight per kWp 53.2 kg/kWp 52.5 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.40 %/yr 0.40 %/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

#1,424 vs #716

730 leads by 708 places

Power density

#1,347 vs #800

730 leads by 547 places

Heat behaviour

#13 vs #13

Tied - the same position in the database

Weight

#7,025 vs #5,993

730 leads by 1,032 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#540 vs #312

730 leads by 228 places

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Written summary

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Questions about this pairing

Which panel is better: BYD HSBK-33-720 or BYD HSBK-33-730?

According to our database: BYD HSBK-33-730 has higher module efficiency (23.50% vs 23.18%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of BYD HSBK-33-720 and BYD HSBK-33-730?

BYD HSBK-33-720 has a module efficiency of 23.18%, while BYD HSBK-33-730 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does BYD HSBK-33-720 use vs BYD HSBK-33-730?

BYD HSBK-33-720 uses HJT cells; BYD HSBK-33-730 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 BYD HSBK-33-720 and BYD HSBK-33-730?

BYD HSBK-33-720 has a 30 years power warranty; BYD HSBK-33-730 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 BYD HSBK-33-720 and BYD HSBK-33-730 bifacial panels?

Both BYD HSBK-33-720 and BYD HSBK-33-730 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.