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RS9H-M TOPCON-735 vs RS8V-M-DG-430 6 of 19 identical Swap Change panels

Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS8V-M-DG-430

Resun Solar RS9H-M TOPCON-735
Resun Solar
RS9H-M TOPCON-735
735 Wp 23.66 % TOPCon
Open panel page Datasheet PDF
VS
Resun Solar RS8V-M-DG-430
Resun Solar
RS8V-M-DG-430
430 Wp 22.02 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

RS9H-M TOPCON-735 leads on the differences that matter

The largest is module efficiency: 1.64 pp more efficient. 6 of 19 comparable parameters are identical.

See all 13 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter RS9H-M TOPCON-735 RS8V-M-DG-430 Difference
Module efficiency 23.66 % 22.02 % 1.64 pp more efficient
Rated power 735 Wp 430 Wp 305 W more power
Power density 236.6 Wp/m² 220.2 Wp/m² 16.4 Wp/m² higher
Weight 32.3 kg 23.8 kg 8.5 kg lighter
Weight per kWp 43.9 kg/kWp 55.3 kg/kWp 11.4 kg/kWp lighter
Open-circuit voltage 50.00 V 38.60 V 11.40 V apart
Short-circuit current 18.64 A 14.18 A 4.46 A apart
Module area 3.106 m² 1.953 m² 1.154 m² apart
Voltage at max power 41.90 V 32.15 V 9.75 V apart
Current at max power 17.55 A 13.38 A 4.17 A apart
Cell count 132 108 24 cells apart
Bifacial No Yes No vs Yes
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
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.
RS9H-M TOPCON-735
24,277 kWh
RS8V-M-DG-430
14,203 kWh
Lifetime gap
10,074 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario RS9H-M TOPCON-735 RS8V-M-DG-430
Standard test conditions 25 °C 100.0% of rated power 735 W 430 W
Cool, bright day 40 °C 95.5% of rated power 702 W 411 W
Typical summer roof 55 °C 91.0% of rated power 669 W 391 W
Hot roof 70 °C 86.5% of rated power 636 W 372 W
03

Full specification

Parameter RS9H-M TOPCON-735 RS8V-M-DG-430 Difference
Power and efficiency
Rated power 735 Wp 430 Wp +305 W for RS9H-M TOPCON-735
Module efficiency 23.66 % 22.02 % +1.64 pp for RS9H-M TOPCON-735
Power density 236.6 Wp/m² 220.2 Wp/m² +16.4 Wp/m² for RS9H-M TOPCON-735
Open-circuit voltage 50.00 V 38.60 V 11.40 V apart
Voltage at max power 41.90 V 32.15 V 9.75 V apart
Short-circuit current 18.64 A 14.18 A 4.46 A apart
Current at max power 17.55 A 13.38 A 4.17 A apart
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
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 23.8 kg -8.5 kg for RS8V-M-DG-430
Weight per kWp 43.9 kg/kWp 55.3 kg/kWp -11.4 kg/kWp for RS9H-M TOPCON-735
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 Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#602 vs #6,329
RS9H-M TOPCON-735 leads by 5,727 places
Power density
#582 vs #6,481
RS9H-M TOPCON-735 leads by 5,899 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#364 vs #9,798
RS9H-M TOPCON-735 leads by 9,434 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#149 vs #9,640
RS9H-M TOPCON-735 leads by 9,491 places
05

More useful comparisons

Open the full database
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M TOPCON-725
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M TOPCON-720
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-720
4 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-DG-720
7 differences, the largest is module efficiency
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Resun Solar RS9H-M TOPCON-735 vs Resun Solar RS9H-M-715
4 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Resun Solar RS9H-M TOPCON-735 or Resun Solar RS8V-M-DG-430?
According to our database: Resun Solar RS9H-M TOPCON-735 has higher module efficiency (23.66% 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 RS9H-M TOPCON-735 and Resun Solar RS8V-M-DG-430?
Resun Solar RS9H-M TOPCON-735 has a module efficiency of 23.66%, 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 RS9H-M TOPCON-735 use vs Resun Solar RS8V-M-DG-430?
Resun Solar RS9H-M TOPCON-735 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 RS9H-M TOPCON-735 and Resun Solar RS8V-M-DG-430?
Resun Solar RS9H-M TOPCON-735 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 RS9H-M TOPCON-735 and Resun Solar RS8V-M-DG-430 bifacial panels?
Resun Solar RS8V-M-DG-430 is bifacial (captures light from both faces); Resun Solar RS9H-M TOPCON-735 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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.