Resun Solar RS8V-M-DG vs Resun Solar RS8V-M-DG-430
VS
The verdict
RS8V-M-DG leads on the differences that matter
The largest is module efficiency: 0.51 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
RS8V-M-DG
RS8V-M-DG-430
Difference
Module efficiency
22.53 %
22.02 %
0.51 pp more efficient
Power density
225.3 Wp/m²
220.2 Wp/m²
5.1 Wp/m² higher
Rated power
440 Wp
430 Wp
10 W more power
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
RS8V-M-DG
14,533 kWh
RS8V-M-DG-430
14,203 kWh
Lifetime gap
330 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
RS8V-M-DG
RS8V-M-DG-430
Standard test conditions
25 °C
100.0% of rated power
440 W
430 W
Cool, bright day
40 °C
95.5% of rated power
420 W
411 W
Typical summer roof
55 °C
91.0% of rated power
400 W
391 W
Hot roof
70 °C
86.5% of rated power
381 W
372 W
03
Full specification
Parameter
RS8V-M-DG
RS8V-M-DG-430
Difference
Power and efficiency
Rated power
440 Wp
430 Wp
+10 W for RS8V-M-DG
Module efficiency
22.53 %
22.02 %
+0.51 pp for RS8V-M-DG
Power density
225.3 Wp/m²
220.2 Wp/m²
+5.1 Wp/m² for RS8V-M-DG
Open-circuit voltage
38.10 V
38.60 V
Effectively the same
Voltage at max power
32.41 V
32.15 V
Effectively the same
Short-circuit current
14.43 A
14.18 A
Effectively the same
Current at max power
13.58 A
13.38 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
1722x1134x30 mm
1722x1134x30 mm
Same
Module area
1.953 m²
1.953 m²
Same
Weight
23.8 kg
23.8 kg
Same
Weight per kWp
54.1 kg/kWp
55.3 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
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#3,982
vs
#6,329
RS8V-M-DG leads by 2,347 places
Power density
#4,099
vs
#6,481
RS8V-M-DG leads by 2,382 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#8,316
vs
#9,798
RS8V-M-DG leads by 1,482 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,801
vs
#9,640
RS8V-M-DG leads by 839 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 RS8V-M-DG or Resun Solar RS8V-M-DG-430?
According to our database: Resun Solar RS8V-M-DG has higher module efficiency (22.53% vs 22.02%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Resun Solar RS8V-M-DG and Resun Solar RS8V-M-DG-430?
Resun Solar RS8V-M-DG has a module efficiency of 22.53%, while Resun Solar RS8V-M-DG-430 is 22.02%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Resun Solar RS8V-M-DG use vs Resun Solar RS8V-M-DG-430?
Resun Solar RS8V-M-DG uses TOPCon cells; Resun Solar RS8V-M-DG-430 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 RS8V-M-DG and Resun Solar RS8V-M-DG-430?
Resun Solar RS8V-M-DG has a 30 years power warranty; Resun Solar RS8V-M-DG-430 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 Resun Solar RS8V-M-DG and Resun Solar RS8V-M-DG-430 bifacial panels?
Both Resun Solar RS8V-M-DG and Resun Solar RS8V-M-DG-430 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.