Resun Solar RS9H-M TOPCON-725 vs Resun Solar RS8V435M-FB
VS
The verdict
RS9H-M TOPCON-725 leads on the differences that matter
The largest is module efficiency: 1.06 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
RS9H-M TOPCON-725
RS8V435M-FB
Difference
Module efficiency
23.34 %
22.28 %
1.06 pp more efficient
Temperature coefficient
-0.300 %/°C
-0.350 %/°C
0.050 %/°C better in heat
Rated power
725 Wp
435 Wp
290 W more power
Power density
233.4 Wp/m²
222.8 Wp/m²
10.6 Wp/m² higher
Weight
32.3 kg
21.5 kg
10.8 kg lighter
Open-circuit voltage
49.60 V
37.97 V
11.63 V apart
Short-circuit current
18.54 A
14.35 A
4.19 A apart
Module area
3.106 m²
1.953 m²
1.154 m² apart
Weight per kWp
44.6 kg/kWp
49.4 kg/kWp
4.9 kg/kWp lighter
Voltage at max power
41.50 V
32.25 V
9.25 V apart
Current at max power
17.47 A
13.49 A
3.98 A apart
Cell count
132
108
24 cells apart
Dimensions
2384x1303x30 mm
1722x1134x30 mm
2384x1303x30 mm vs 1722x1134x30 mm
02
What it means on a roof
Thirty years of production
Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, at 1,200 kWh/kWp a year
RS9H-M TOPCON-725
23,947 kWh
RS8V435M-FB
14,368 kWh
Lifetime gap
9,579 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
RS9H-M TOPCON-725
RS8V435M-FB
Standard test conditions
25 °C
100.0% of rated power
725 W
435 W
Cool, bright day
40 °C
94.8% of rated power
692 W
412 W
Typical summer roof
55 °C
89.5% of rated power
660 W
389 W
Hot roof
70 °C
84.2% of rated power
627 W
366 W
03
Full specification
Parameter
RS9H-M TOPCON-725
RS8V435M-FB
Difference
Power and efficiency
Rated power
725 Wp
435 Wp
+290 W for RS9H-M TOPCON-725
Module efficiency
23.34 %
22.28 %
+1.06 pp for RS9H-M TOPCON-725
Power density
233.4 Wp/m²
222.8 Wp/m²
+10.6 Wp/m² for RS9H-M TOPCON-725
Open-circuit voltage
49.60 V
37.97 V
11.63 V apart
Voltage at max power
41.50 V
32.25 V
9.25 V apart
Short-circuit current
18.54 A
14.35 A
4.19 A apart
Current at max power
17.47 A
13.49 A
3.98 A apart
Temperature
Temperature coefficient
-0.300 %/°C
-0.350 %/°C
+0.050 %/°C for RS9H-M TOPCON-725
Mechanical
Dimensions
2384x1303x30 mm
1722x1134x30 mm
2384x1303x30 mm vs 1722x1134x30 mm
Module area
3.106 m²
1.953 m²
1.154 m² apart
Weight
32.3 kg
21.5 kg
-10.8 kg for RS8V435M-FB
Weight per kWp
44.6 kg/kWp
49.4 kg/kWp
-4.9 kg/kWp for RS9H-M TOPCON-725
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.50 %/yr
0.50 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
108
24 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#943
vs
#5,403
RS9H-M TOPCON-725 leads by 4,460 places
Power density
#936
vs
#5,150
RS9H-M TOPCON-725 leads by 4,214 places
Heat behaviour
#6,093
vs
#10,419
RS9H-M TOPCON-725 leads by 4,326 places
Weight
#473
vs
#2,936
RS9H-M TOPCON-725 leads by 2,463 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#242
vs
#9,138
RS9H-M TOPCON-725 leads by 8,896 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Resun Solar RS9H-M TOPCON-725 or Resun Solar RS8V435M-FB?
According to our database: Resun Solar RS9H-M TOPCON-725 has higher module efficiency (23.34% vs 22.28%); Resun Solar RS9H-M TOPCON-725 tolerates heat better (temp coeff -0.300%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Resun Solar RS9H-M TOPCON-725 and Resun Solar RS8V435M-FB?
Resun Solar RS9H-M TOPCON-725 has a module efficiency of 23.34%, while Resun Solar RS8V435M-FB is 22.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Resun Solar RS9H-M TOPCON-725 use vs Resun Solar RS8V435M-FB?
Resun Solar RS9H-M TOPCON-725 uses TOPCon cells; Resun Solar RS8V435M-FB 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 Resun Solar RS9H-M TOPCON-725 and Resun Solar RS8V435M-FB?
Resun Solar RS9H-M TOPCON-725 has a 30 years power warranty; Resun Solar RS8V435M-FB 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.
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.