--- title: "Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M TOPCON-730 - Solar Panel Comparison | ComparePV" description: "Compare Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M TOPCON-730 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-topcon-730" updated: 2026-09-11 --- # Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M TOPCON-730 M TOPCON-730 leads on the differences that matter The largest is module efficiency: 0.48 pp more efficient. 12 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Resun Solar RS9H-M-DG-715](https://comparepv.com/panel/resun-solar-rs9h-m-dg-715) | [Resun Solar RS9H-M TOPCON-730](https://comparepv.com/panel/resun-solar-rs9h-m-topcon-730) | | Manufacturer | Resun Solar | Resun Solar | | Power | 715 Wp | 730 Wp | | Efficiency | 23.02 % | 23.50 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | M-DG-715 | M TOPCON-730 | Difference | | --- | --- | --- | --- | | Module efficiency | 23.02 % | 23.50 % | +0.48 pp for M TOPCON-730 | | Weight | 38.5 kg | 32.3 kg | -6.2 kg for M TOPCON-730 | | Weight per kWp | 53.8 kg/kWp | 44.2 kg/kWp | -9.6 kg/kWp for M TOPCON-730 | | Power density | 230.2 Wp/m² | 235.0 Wp/m² | +4.8 Wp/m² for M TOPCON-730 | | Rated power | 715 Wp | 730 Wp | +15 W for M TOPCON-730 | | Bifacial | Yes | No | Yes vs No | | Dimensions | 2384x1303x35 mm | 2384x1303x30 mm | 2384x1303x35 mm vs 2384x1303x30 mm | ## Every compared parameter | Parameter | M-DG-715 | M TOPCON-730 | | --- | --- | --- | | Rated power | 715 Wp | 730 Wp | | Module efficiency | 23.02 % | 23.50 % | | Power density | 230.2 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 49.20 V | 49.80 V | | Voltage at max power | 41.10 V | 41.70 V | | Short-circuit current | 18.44 A | 18.59 A | | Current at max power | 17.40 A | 17.51 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x30 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.5 kg | 32.3 kg | | Weight per kWp | 53.8 kg/kWp | 44.2 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.50 %/yr | 0.50 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | No | ## Thirty-year yield 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. - **Cumulative output, M-DG-715:** 23,616 kWh - **Cumulative output, M TOPCON-730:** 24,112 kWh - **Gap:** 496 kWh ## Output when hot | Condition | Cell temperature | M-DG-715 | M TOPCON-730 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 715 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 683 W | 697 W | 95.5% of rated power | | Typical summer roof | 55 °C | 651 W | 664 W | 91.0% of rated power | | Hot roof | 70 °C | 618 W | 631 W | 86.5% of rated power | ## Against the whole database | Measure | M-DG-715 | M TOPCON-730 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,797 | #716 | 14,005 | M TOPCON-730 leads by 1,081 places | | Power density | #2,018 | #800 | 14,005 | M TOPCON-730 leads by 1,218 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #7,897 | #407 | 14,005 | M TOPCON-730 leads by 7,490 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #471 | #179 | 14,005 | M TOPCON-730 leads by 292 places | ## Questions ### Which panel is better: Resun Solar RS9H-M-DG-715 or Resun Solar RS9H-M TOPCON-730? According to our database: **Resun Solar RS9H-M TOPCON-730** has higher module efficiency (**23.50%** vs **23.02%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Resun Solar RS9H-M-DG-715 and Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M-DG-715** has a module efficiency of **23.02%**, while **Resun Solar RS9H-M TOPCON-730** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Resun Solar RS9H-M-DG-715 use vs Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M-DG-715** uses **TOPCon** cells; **Resun Solar RS9H-M TOPCON-730** 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-DG-715 and Resun Solar RS9H-M TOPCON-730? **Resun Solar RS9H-M-DG-715** has a **30 years** power warranty; **Resun Solar RS9H-M TOPCON-730** 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-DG-715 and Resun Solar RS9H-M TOPCON-730 bifacial panels? **Resun Solar RS9H-M-DG-715** is bifacial (captures light from both faces); **Resun Solar RS9H-M TOPCON-730** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG-720](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg-720) - The same specification on paper - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG-710](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg-710) - The same specification on paper - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG-705](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg-705) - 3 differences, the largest is module efficiency - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg) - 5 differences, the largest is module efficiency - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG-700](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg-700) - 3 differences, the largest is module efficiency - [Resun Solar RS9H-M-DG-715 vs Resun Solar RS9H-M-DG-695](https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-dg-695) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/resun-solar-rs9h-m-dg-715/resun-solar-rs9h-m-topcon-730 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.