Resun Solar RS8V430M-FB vs Resun Solar RS8V425M-FB
VS
The verdict
RS8V430M-FB leads on the differences that matter
The largest is module efficiency: 0.26 pp more efficient. 18 of 19 comparable parameters are identical.
See the one differenceHow alike are they
18
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
1 of 19 parameters
What actually differs
Parameter
RS8V430M-FB
RS8V425M-FB
Difference
Module efficiency
22.02 %
21.76 %
0.26 pp more efficient
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
Same temp coeff. for both panels (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
RS8V430M-FB
14,203 kWh
RS8V425M-FB
14,038 kWh
Lifetime gap
165 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
RS8V430M-FB
RS8V425M-FB
Standard test conditions
25 °C
100.0% of rated power
430 W
425 W
Cool, bright day
40 °C
94.8% of rated power
407 W
403 W
Typical summer roof
55 °C
89.5% of rated power
385 W
380 W
Hot roof
70 °C
84.2% of rated power
362 W
358 W
03
Full specification
Parameter
RS8V430M-FB
RS8V425M-FB
Difference
Power and efficiency
Rated power
430 Wp
425 Wp
Effectively the same
Module efficiency
22.02 %
21.76 %
+0.26 pp for RS8V430M-FB
Power density
220.2 Wp/m²
217.6 Wp/m²
Effectively the same
Open-circuit voltage
37.84 V
37.71 V
Effectively the same
Voltage at max power
32.09 V
31.94 V
Effectively the same
Short-circuit current
14.27 A
14.19 A
Effectively the same
Current at max power
13.40 A
13.31 A
Effectively the same
Temperature
Temperature coefficient
-0.350 %/°C
-0.350 %/°C
Same
Mechanical
Dimensions
1722x1134x30 mm
1722x1134x30 mm
Same
Module area
1.953 m²
1.953 m²
Same
Weight
21.5 kg
21.5 kg
Same
Weight per kWp
50.0 kg/kWp
50.6 kg/kWp
Effectively the same
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
108
108
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#6,329
vs
#7,285
RS8V430M-FB leads by 956 places
Power density
#6,481
vs
#7,172
RS8V430M-FB leads by 691 places
Heat behaviour
#10,419
vs
#10,419
Tied - the same position in the database
Weight
#3,317
vs
#3,991
RS8V430M-FB leads by 674 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#9,520
vs
#9,910
RS8V430M-FB leads by 390 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: Resun Solar RS8V430M-FB or Resun Solar RS8V425M-FB?
According to our database: Resun Solar RS8V430M-FB has higher module efficiency (22.02% vs 21.76%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Resun Solar RS8V430M-FB and Resun Solar RS8V425M-FB?
Resun Solar RS8V430M-FB has a module efficiency of 22.02%, while Resun Solar RS8V425M-FB is 21.76%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Resun Solar RS8V430M-FB use vs Resun Solar RS8V425M-FB?
Resun Solar RS8V430M-FB uses TOPCon cells; Resun Solar RS8V425M-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 RS8V430M-FB and Resun Solar RS8V425M-FB?
Resun Solar RS8V430M-FB has a 30 years power warranty; Resun Solar RS8V425M-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.