SunEvo Solar SE6-66HBD-745W vs SunEvo Solar SE6-66HBD-720W
VS
The verdict
745W leads on the differences that matter
The largest is module efficiency: 0.80 pp more efficient. 10 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 8 differencesHow alike are they
10
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
8 of 18 parameters
What actually differs
Parameter
745W
720W
Difference
Module efficiency
24.00 %
23.20 %
0.80 pp more efficient
Temperature coefficient
-0.240 %/°C
-0.280 %/°C
0.040 %/°C better in heat
Power density
239.8 Wp/m²
231.8 Wp/m²
8.0 Wp/m² higher
Rated power
745 Wp
720 Wp
25 W more power
Product warranty
15 yrs
12 yrs
3 yrs longer
Cell technology
HJT
TOPCon
HJT vs TOPCon
Open-circuit voltage
50.67 V
49.28 V
1.39 V apart
Voltage at max power
42.59 V
41.03 V
1.56 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
745W
24,996 kWh
720W
24,157 kWh
Lifetime gap
839 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
745W
720W
Standard test conditions
25 °C
100.0% of rated power
745 W
720 W
Cool, bright day
40 °C
95.8% of rated power
718 W
690 W
Typical summer roof
55 °C
91.6% of rated power
691 W
660 W
Hot roof
70 °C
87.4% of rated power
665 W
629 W
03
Full specification
Parameter
745W
720W
Difference
Power and efficiency
Rated power
745 Wp
720 Wp
+25 W for 745W
Module efficiency
24.00 %
23.20 %
+0.80 pp for 745W
Power density
239.8 Wp/m²
231.8 Wp/m²
+8.0 Wp/m² for 745W
Open-circuit voltage
50.67 V
49.28 V
1.39 V apart
Voltage at max power
42.59 V
41.03 V
1.56 V apart
Short-circuit current
18.62 A
18.55 A
Effectively the same
Current at max power
17.50 A
17.55 A
Effectively the same
Temperature
Temperature coefficient
-0.240 %/°C
-0.280 %/°C
+0.040 %/°C for 745W
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
50.9 kg/kWp
52.6 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
12 yrs
+3 yrs for 745W
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
14,005 panels
Against the whole database
Efficiency
#303
vs
#1,306
745W leads by 1,003 places
Power density
#339
vs
#1,347
745W leads by 1,008 places
Heat behaviour
#13
vs
#1,309
745W leads by 1,296 places
Weight
#4,255
vs
#6,266
745W leads by 2,011 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#103
vs
#516
745W leads by 413 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: SunEvo Solar SE6-66HBD-745W or SunEvo Solar SE6-66HBD-720W?
According to our database: SunEvo Solar SE6-66HBD-745 W has higher module efficiency (24.00% vs 23.20%); SunEvo Solar SE6-66HBD-745 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-745W and SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-745 W has a module efficiency of 24.00%, 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-745W use vs SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-745 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-745W and SunEvo Solar SE6-66HBD-720W?
SunEvo Solar SE6-66HBD-745 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-745W and SunEvo Solar SE6-66HBD-720W bifacial panels?
Both SunEvo Solar SE6-66HBD-745 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.