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

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

Q: Which panel is better: Resun Solar RS8V-M-DG or Resun Solar RS9H-M TOPCON-735?

According to our database: Resun Solar RS9H-M TOPCON-735 has higher module efficiency (23.66% vs 22.53%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Resun Solar RS8V-M-DG and Resun Solar RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG has a module efficiency of 22.53%, while Resun Solar RS9H-M TOPCON-735 is 23.66%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Resun Solar RS8V-M-DG use vs Resun Solar RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG uses TOPCon cells; Resun Solar RS9H-M TOPCON-735 uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Resun Solar RS8V-M-DG and Resun Solar RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG has a 30 years power warranty; Resun Solar RS9H-M TOPCON-735 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.

Q: Are Resun Solar RS8V-M-DG and Resun Solar RS9H-M TOPCON-735 bifacial panels?

Resun Solar RS8V-M-DG 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.

Resun Solar

RS8V-M-DG

440 Wp 22.53 % TOPCon Bifacial

Open panel page Datasheet PDF

Resun Solar

RS9H-M TOPCON-735

735 Wp 23.66 % TOPCon

Open panel page Datasheet PDF

The verdict

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

The largest is module efficiency: 1.13 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

What actually differs

13 of 19 parameters

Parameter RS8V-M-DG RS9H-M TOPCON-735 Difference

Module efficiency 22.53 % 23.66 % 1.13 pp more efficient

Rated power 440 Wp 735 Wp 295 W more power

Power density 225.3 Wp/m² 236.6 Wp/m² 11.3 Wp/m² higher

Weight 23.8 kg 32.3 kg 8.5 kg lighter

Weight per kWp 54.1 kg/kWp 43.9 kg/kWp 10.1 kg/kWp lighter

Open-circuit voltage 38.10 V 50.00 V 11.90 V apart

Short-circuit current 14.43 A 18.64 A 4.21 A apart

Module area 1.953 m² 3.106 m² 1.154 m² apart

Voltage at max power 32.41 V 41.90 V 9.49 V apart

Current at max power 13.58 A 17.55 A 3.97 A apart

Cell count 108 132 24 cells apart

Bifacial Yes No Yes vs No

Dimensions 1722x1134x30 mm 2384x1303x30 mm 1722x1134x30 mm vs 2384x1303x30 mm

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

Cell temperature

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

RS9H-M TOPCON-735

24,277 kWh

Lifetime gap

9,744 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario RS8V-M-DG RS9H-M TOPCON-735

Standard test conditions 25 °C 100.0% of rated power 440 W 735 W

Cool, bright day 40 °C 95.5% of rated power 420 W 702 W

Typical summer roof 55 °C 91.0% of rated power 400 W 669 W

Hot roof 70 °C 86.5% of rated power 381 W 636 W

Full specification

Parameter RS8V-M-DG RS9H-M TOPCON-735 Difference

Power and efficiency

Rated power 440 Wp 735 Wp +295 W for RS9H-M TOPCON-735

Module efficiency 22.53 % 23.66 % +1.13 pp for RS9H-M TOPCON-735

Power density 225.3 Wp/m² 236.6 Wp/m² +11.3 Wp/m² for RS9H-M TOPCON-735

Open-circuit voltage 38.10 V 50.00 V 11.90 V apart

Voltage at max power 32.41 V 41.90 V 9.49 V apart

Short-circuit current 14.43 A 18.64 A 4.21 A apart

Current at max power 13.58 A 17.55 A 3.97 A apart

Temperature

Temperature coefficient -0.300 %/°C -0.300 %/°C Same

Mechanical

Dimensions 1722x1134x30 mm 2384x1303x30 mm 1722x1134x30 mm vs 2384x1303x30 mm

Module area 1.953 m² 3.106 m² 1.154 m² apart

Weight 23.8 kg 32.3 kg -8.5 kg for RS8V-M-DG

Weight per kWp 54.1 kg/kWp 43.9 kg/kWp -10.1 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 108 132 24 cells apart

Bifacial Yes No Yes vs No

Against the whole database

14,005 panels

Efficiency

#3,982 vs #602

RS9H-M TOPCON-735 leads by 3,380 places

Power density

#4,099 vs #582

RS9H-M TOPCON-735 leads by 3,517 places

Heat behaviour

#6,093 vs #6,093

Tied - the same position in the database

Weight

#8,316 vs #364

RS9H-M TOPCON-735 leads by 7,952 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#8,801 vs #149

RS9H-M TOPCON-735 leads by 8,652 places

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Written summary

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Questions about this pairing

Which panel is better: Resun Solar RS8V-M-DG or Resun Solar RS9H-M TOPCON-735?

According to our database: Resun Solar RS9H-M TOPCON-735 has higher module efficiency (23.66% vs 22.53%). 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 RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG has a module efficiency of 22.53%, while Resun Solar RS9H-M TOPCON-735 is 23.66%. 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 RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG uses TOPCon cells; Resun Solar RS9H-M TOPCON-735 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 RS9H-M TOPCON-735?

Resun Solar RS8V-M-DG has a 30 years power warranty; Resun Solar RS9H-M TOPCON-735 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 RS9H-M TOPCON-735 bifacial panels?

Resun Solar RS8V-M-DG 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.