SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-740W
VS
The verdict
740W leads on the differences that matter
The largest is temperature coefficient: 0.040 %/°C better in heat. 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
720W
740W
Difference
Temperature coefficient
-0.280 %/°C
-0.240 %/°C
0.040 %/°C better in heat
Module efficiency
23.20 %
23.80 %
0.60 pp more efficient
Product warranty
12 yrs
15 yrs
3 yrs longer
Power density
231.8 Wp/m²
238.2 Wp/m²
6.4 Wp/m² higher
Rated power
720 Wp
740 Wp
20 W more power
Cell technology
TOPCon
HJT
TOPCon vs HJT
Open-circuit voltage
49.28 V
50.57 V
1.29 V apart
Voltage at max power
41.03 V
42.50 V
1.47 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
720W
24,157 kWh
740W
24,828 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
720W
740W
Standard test conditions
25 °C
100.0% of rated power
720 W
740 W
Cool, bright day
40 °C
95.8% of rated power
690 W
713 W
Typical summer roof
55 °C
91.6% of rated power
660 W
687 W
Hot roof
70 °C
87.4% of rated power
629 W
660 W
03
Full specification
Parameter
720W
740W
Difference
Power and efficiency
Rated power
720 Wp
740 Wp
+20 W for 740W
Module efficiency
23.20 %
23.80 %
+0.60 pp for 740W
Power density
231.8 Wp/m²
238.2 Wp/m²
+6.4 Wp/m² for 740W
Open-circuit voltage
49.28 V
50.57 V
1.29 V apart
Voltage at max power
41.03 V
42.50 V
1.47 V apart
Short-circuit current
18.55 A
18.53 A
Effectively the same
Current at max power
17.55 A
17.42 A
Effectively the same
Temperature
Temperature coefficient
-0.280 %/°C
-0.240 %/°C
+0.040 %/°C for 740W
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
52.6 kg/kWp
51.2 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
15 yrs
+3 yrs for 740W
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
-
0.30 %/yr
Not published by SunEvo Solar
Technology
Cell technology
TOPCon
HJT
TOPCon vs HJT
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#1,306
vs
#433
740W leads by 873 places
Power density
#1,347
vs
#431
740W leads by 916 places
Heat behaviour
#1,309
vs
#13
740W leads by 1,296 places
Weight
#6,266
vs
#4,594
740W leads by 1,672 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#516
vs
#135
740W leads by 381 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-720W or SunEvo Solar SE6-66HBD-740W?
According to our database: SunEvo Solar SE6-66HBD-740 W has higher module efficiency (23.80% vs 23.20%); SunEvo Solar SE6-66HBD-740 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-720W and SunEvo Solar SE6-66HBD-740W?
SunEvo Solar SE6-66HBD-720 W has a module efficiency of 23.20%, while SunEvo Solar SE6-66HBD-740 W is 23.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does SunEvo Solar SE6-66HBD-720W use vs SunEvo Solar SE6-66HBD-740W?
SunEvo Solar SE6-66HBD-720 W uses TOPCon cells; SunEvo Solar SE6-66HBD-740 W 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 SunEvo Solar SE6-66HBD-720W and SunEvo Solar SE6-66HBD-740W?
SunEvo Solar SE6-66HBD-720 W has a 30 years power warranty; SunEvo Solar SE6-66HBD-740 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-720W and SunEvo Solar SE6-66HBD-740W bifacial panels?
Both SunEvo Solar SE6-66HBD-720 W and SunEvo Solar SE6-66HBD-740 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.