Sunplus 745 vs Sunplus 730
VS
The verdict
745 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 differencesHow alike are they
15
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
3 of 18 parameters
What actually differs
Parameter
745
730
Difference
Module efficiency
24.00 %
23.50 %
0.50 pp more efficient
Power density
239.8 Wp/m²
235.0 Wp/m²
4.8 Wp/m² higher
Rated power
745 Wp
730 Wp
15 W more power
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
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.
745
25,346 kWh
730
24,836 kWh
Lifetime gap
510 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
745
730
Standard test conditions
25 °C
100.0% of rated power
745 W
730 W
Cool, bright day
40 °C
95.5% of rated power
711 W
697 W
Typical summer roof
55 °C
91.0% of rated power
678 W
664 W
Hot roof
70 °C
86.5% of rated power
644 W
631 W
03
Full specification
Parameter
745
730
Difference
Power and efficiency
Rated power
745 Wp
730 Wp
+15 W for 745
Module efficiency
24.00 %
23.50 %
+0.50 pp for 745
Power density
239.8 Wp/m²
235.0 Wp/m²
+4.8 Wp/m² for 745
Open-circuit voltage
51.02 V
50.99 V
Effectively the same
Voltage at max power
44.10 V
43.68 V
Effectively the same
Short-circuit current
17.72 A
17.66 A
Effectively the same
Current at max power
16.84 A
16.67 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
52.3 kg/kWp
53.4 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
04
14,005 panels
Against the whole database
Efficiency
#303
vs
#716
745 leads by 413 places
Power density
#339
vs
#800
745 leads by 461 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#5,847
vs
#7,348
745 leads by 1,501 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#836
vs
#1,335
745 leads by 499 places
05
Open the full database
More useful comparisons
Same series, other bin
Sunplus
Sunplus 745 vs Sunplus 750
The same specification on paper
Same series, other bin
Sunplus
Sunplus 745 vs Sunplus 740
One difference: module efficiency
Same series, other bin
Sunplus
Sunplus 745 vs Sunplus 735
3 differences, the largest is module efficiency
Same series, other bin
Sunplus
Sunplus 745 vs Sunplus 725
3 differences, the largest is module efficiency
Same manufacturer
Sunplus
Sunplus 745 vs Sunplus SR5-60HBD-600M
14 differences, the largest is module efficiency
Same manufacturer
Sunplus
Sunplus 745 vs Sunplus SR5-60HBD-595M
14 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Sunplus 745 or Sunplus 730?
According to our database: Sunplus 745 has higher module efficiency (24.00% vs 23.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunplus 745 and Sunplus 730?
Sunplus 745 has a module efficiency of 24.00%, while Sunplus 730 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunplus 745 use vs Sunplus 730?
Sunplus 745 uses HJT cells; Sunplus 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 Sunplus 745 and Sunplus 730?
Sunplus 745 has a 30 years power warranty; Sunplus 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 Sunplus 745 and Sunplus 730 bifacial panels?
Both Sunplus 745 and Sunplus 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.
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.