--- title: "Recom RCM-715-8DBNM vs Recom RCM-715-8NM - Solar Panel Comparison | ComparePV" description: "Compare Recom RCM-715-8DBNM vs Recom RCM-715-8NM side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-715-8nm" updated: 2026-09-11 --- # Recom RCM-715-8DBNM vs Recom RCM-715-8NM 8NM leads on the differences that matter The largest is weight: 3.9 kg lighter. 13 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Recom RCM-715-8DBNM](https://comparepv.com/panel/recom-rcm-715-8dbnm) | [Recom RCM-715-8NM](https://comparepv.com/panel/recom-rcm-715-8nm) | | Manufacturer | Recom | Recom | | Power | 715 Wp | 715 Wp | | Efficiency | 23.00 % | 23.02 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 8DBNM | 8NM | Difference | | --- | --- | --- | --- | | Weight | 37.8 kg | 33.9 kg | -3.9 kg for 8NM | | Weight per kWp | 52.9 kg/kWp | 47.4 kg/kWp | -5.5 kg/kWp for 8NM | | Temperature coefficient | -0.290 %/°C | -0.300 %/°C | +0.010 %/°C for 8DBNM | | Bifacial | Yes | No | Yes vs No | | Dimensions | 2384x1303x33 mm | 2384x1303x30 mm | 2384x1303x33 mm vs 2384x1303x30 mm | ## Every compared parameter | Parameter | 8DBNM | 8NM | | --- | --- | --- | | Rated power | 715 Wp | 715 Wp | | Module efficiency | 23.00 % | 23.02 % | | Power density | 230.2 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 49.05 V | 48.90 V | | Voltage at max power | 40.93 V | 41.10 V | | Short-circuit current | 18.48 A | 18.39 A | | Current at max power | 17.47 A | 17.40 A | | Temperature coefficient | -0.290 %/°C | -0.300 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x30 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 37.8 kg | 33.9 kg | | Weight per kWp | 52.9 kg/kWp | 47.4 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | - | | Bifacial | Yes | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, 8DBNM:** 23,990 kWh - **Cumulative output, 8NM:** 23,990 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | 8DBNM | 8NM | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 715 W | 715 W | 100.0% of rated power | | Cool, bright day | 40 °C | 684 W | 683 W | 95.5% of rated power | | Typical summer roof | 55 °C | 653 W | 651 W | 91.0% of rated power | | Hot roof | 70 °C | 622 W | 618 W | 86.5% of rated power | ## Against the whole database | Measure | 8DBNM | 8NM | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,919 | #1,797 | 14,005 | 8NM leads by 122 places | | Power density | #2,018 | #2,018 | 14,005 | Tied - the same position in the database | | Heat behaviour | #2,165 | #6,093 | 14,005 | 8DBNM leads by 3,928 places | | Weight | #6,576 | #1,670 | 14,005 | 8NM leads by 4,906 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #40 | #37 | 14,005 | 8NM leads by 3 places | ## Questions ### Which panel is better: Recom RCM-715-8DBNM or Recom RCM-715-8NM? According to our database: **Recom RCM-715-8NM** has higher module efficiency (**23.02%** vs **23.00%**); **Recom RCM-715-8DBNM** tolerates heat better (temp coeff **-0.290%/°C** vs **-0.300%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Recom RCM-715-8DBNM and Recom RCM-715-8NM? **Recom RCM-715-8DBNM** has a module efficiency of **23.00%**, while **Recom RCM-715-8NM** is **23.02%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Recom RCM-715-8DBNM use vs Recom RCM-715-8NM? **Recom RCM-715-8DBNM** uses **TOPCon** cells; **Recom RCM-715-8NM** 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 Recom RCM-715-8DBNM and Recom RCM-715-8NM? **Recom RCM-715-8DBNM** has a **30 years** power warranty; **Recom RCM-715-8NM** 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 Recom RCM-715-8DBNM and Recom RCM-715-8NM bifacial panels? **Recom RCM-715-8DBNM** is bifacial (captures light from both faces); **Recom RCM-715-8NM** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [Recom RCM-715-8DBNM vs Recom RCM-730-8DBNM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-730-8dbnm) - 3 differences, the largest is module efficiency - [Recom RCM-715-8DBNM vs Recom RCM-725-8DBNM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-725-8dbnm) - 3 differences, the largest is module efficiency - [Recom RCM-715-8DBNM vs Recom RCM-720-8DBNM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-720-8dbnm) - One difference: module efficiency - [Recom RCM-715-8DBNM vs Recom RCM-710-8DBNM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-710-8dbnm) - The same specification on paper - [Recom RCM-715-8DBNM vs Recom RCM-710-8NM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-710-8nm) - 5 differences, the largest is weight - [Recom RCM-715-8DBNM vs Recom RCM-705-8DBNM](https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-705-8dbnm) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/recom-rcm-715-8dbnm/recom-rcm-715-8nm 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.