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750W vs 720W 9 of 18 identical Swap Change panels

SunEvo Solar SE6-66HBD-750W vs SunEvo Solar SE6-66HBD-720W

SunEvo Solar SE6-66HBD-750W
SunEvo Solar
SE6-66HBD-750W
750 Wp 24.10 % HJT Bifacial
Open panel page Datasheet PDF
VS
SunEvo Solar SE6-66HBD-720W
SunEvo Solar
SE6-66HBD-720W
720 Wp 23.20 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

750W leads on the differences that matter

The largest is module efficiency: 0.90 pp more efficient. 9 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 9 differences
How alike are they
9 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 18 parameters
Parameter 750W 720W Difference
Module efficiency 24.10 % 23.20 % 0.90 pp more efficient
Temperature coefficient -0.240 %/°C -0.280 %/°C 0.040 %/°C better in heat
Power density 241.4 Wp/m² 231.8 Wp/m² 9.7 Wp/m² higher
Rated power 750 Wp 720 Wp 30 W more power
Product warranty 15 yrs 12 yrs 3 yrs longer
Cell technology HJT TOPCon HJT vs TOPCon
Weight per kWp 50.5 kg/kWp 52.6 kg/kWp 2.1 kg/kWp lighter
Open-circuit voltage 50.77 V 49.28 V 1.49 V apart
Voltage at max power 42.68 V 41.03 V 1.65 V apart
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
750W
25,164 kWh
720W
24,157 kWh
Lifetime gap
1,007 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 750W 720W
Standard test conditions 25 °C 100.0% of rated power 750 W 720 W
Cool, bright day 40 °C 95.8% of rated power 723 W 690 W
Typical summer roof 55 °C 91.6% of rated power 696 W 660 W
Hot roof 70 °C 87.4% of rated power 669 W 629 W
03

Full specification

Parameter 750W 720W Difference
Power and efficiency
Rated power 750 Wp 720 Wp +30 W for 750W
Module efficiency 24.10 % 23.20 % +0.90 pp for 750W
Power density 241.4 Wp/m² 231.8 Wp/m² +9.7 Wp/m² for 750W
Open-circuit voltage 50.77 V 49.28 V 1.49 V apart
Voltage at max power 42.68 V 41.03 V 1.65 V apart
Short-circuit current 18.71 A 18.55 A Effectively the same
Current at max power 17.58 A 17.55 A Effectively the same
Temperature
Temperature coefficient -0.240 %/°C -0.280 %/°C +0.040 %/°C for 750W
Mechanical
Dimensions 2384x1303x33 mm 2384x1303x33 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 37.9 kg 37.9 kg Same
Weight per kWp 50.5 kg/kWp 52.6 kg/kWp -2.1 kg/kWp for 750W
Warranty and degradation
Product warranty 15 yrs 12 yrs +3 yrs for 750W
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.30 %/yr - Not published by SunEvo Solar
Technology
Cell technology HJT TOPCon HJT vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#219 vs #1,306
750W leads by 1,087 places
Power density
#219 vs #1,347
750W leads by 1,128 places
Heat behaviour
#13 vs #1,309
750W leads by 1,296 places
Weight
#3,910 vs #6,266
750W leads by 2,356 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#74 vs #516
750W leads by 442 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: SunEvo Solar SE6-66HBD-750W or SunEvo Solar SE6-66HBD-720W?
According to our database: SunEvo Solar SE6-66HBD-750 W has higher module efficiency (24.10% vs 23.20%); SunEvo Solar SE6-66HBD-750 W tolerates heat better (temp coeff -0.240%/°C vs -0.280%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of SunEvo Solar SE6-66HBD-750W and SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-750 W has a module efficiency of 24.10%, while SunEvo Solar SE6-66HBD-720 W is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does SunEvo Solar SE6-66HBD-750W use vs SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-750 W uses HJT cells; SunEvo Solar SE6-66HBD-720 W uses TOPCon. 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 SunEvo Solar SE6-66HBD-750W and SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-750 W has a 30 years power warranty; SunEvo Solar SE6-66HBD-720 W 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 SunEvo Solar SE6-66HBD-750W and SunEvo Solar SE6-66HBD-720W bifacial panels?
Both SunEvo Solar SE6-66HBD-750 W and SunEvo Solar SE6-66HBD-720 W 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.