--- title: "Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-715 - Solar Panel Comparison | ComparePV" description: "Compare Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-715 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-705/resun-solar-rs9h-m-dg-715" updated: 2026-09-11 --- # Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-715 715 leads on the differences that matter The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Resun Solar RS9H-M-DG-705](https://comparepv.com/panel/resun-solar-rs9h-m-dg-705) | [Resun Solar RS9H-M-DG-715](https://comparepv.com/panel/resun-solar-rs9h-m-dg-715) | | Manufacturer | Resun Solar | Resun Solar | | Power | 705 Wp | 715 Wp | | Efficiency | 22.70 % | 23.02 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 705 | 715 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.70 % | 23.02 % | +0.32 pp for 715 | | Power density | 227.0 Wp/m² | 230.2 Wp/m² | +3.2 Wp/m² for 715 | | Rated power | 705 Wp | 715 Wp | +10 W for 715 | ## Every compared parameter | Parameter | 705 | 715 | | --- | --- | --- | | Rated power | 705 Wp | 715 Wp | | Module efficiency | 22.70 % | 23.02 % | | Power density | 227.0 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 48.80 V | 49.20 V | | Voltage at max power | 40.70 V | 41.10 V | | Short-circuit current | 18.36 A | 18.44 A | | Current at max power | 17.33 A | 17.40 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.5 kg | 38.5 kg | | Weight per kWp | 54.6 kg/kWp | 53.8 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 | Yes | ## 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, 705:** 23,286 kWh - **Cumulative output, 715:** 23,616 kWh - **Gap:** 330 kWh ## Output when hot | Condition | Cell temperature | 705 | 715 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 705 W | 715 W | 100.0% of rated power | | Cool, bright day | 40 °C | 673 W | 683 W | 95.5% of rated power | | Typical summer roof | 55 °C | 642 W | 651 W | 91.0% of rated power | | Hot roof | 70 °C | 610 W | 618 W | 86.5% of rated power | ## Against the whole database | Measure | 705 | 715 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3,307 | #1,797 | 14,005 | 715 leads by 1,510 places | | Power density | #3,361 | #2,018 | 14,005 | 715 leads by 1,343 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #8,959 | #7,897 | 14,005 | 715 leads by 1,062 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #771 | #471 | 14,005 | 715 leads by 300 places | ## Questions ### Which panel is better: Resun Solar RS9H-M-DG-705 or Resun Solar RS9H-M-DG-715? According to our database: **Resun Solar RS9H-M-DG-715** has higher module efficiency (**23.02%** vs **22.70%**). 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-705 and Resun Solar RS9H-M-DG-715? **Resun Solar RS9H-M-DG-705** has a module efficiency of **22.70%**, while **Resun Solar RS9H-M-DG-715** is **23.02%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Resun Solar RS9H-M-DG-705 use vs Resun Solar RS9H-M-DG-715? **Resun Solar RS9H-M-DG-705** uses **TOPCon** cells; **Resun Solar RS9H-M-DG-715** 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-705 and Resun Solar RS9H-M-DG-715? **Resun Solar RS9H-M-DG-705** has a **30 years** power warranty; **Resun Solar RS9H-M-DG-715** 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-705 and Resun Solar RS9H-M-DG-715 bifacial panels? Both **Resun Solar RS9H-M-DG-705** and **Resun Solar RS9H-M-DG-715** 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. ## Related comparisons - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-720](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-720) - 3 differences, the largest is module efficiency - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-710](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-710) - The same specification on paper - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg) - 3 differences, the largest is open-circuit voltage - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-700](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-700) - The same specification on paper - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-695](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-695) - 3 differences, the largest is module efficiency - [Resun Solar RS9H-M-DG-705 vs Resun Solar RS9H-M-DG-690](https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-690) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/resun-solar-rs9h-m-dg-705/resun-solar-rs9h-m-dg-715 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.