--- title: "Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS3MH66BDXXX - Solar Panel Comparison | ComparePV" description: "Compare Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS3MH66BDXXX side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps3mh66bdxxx" image: "https://comparepv.com/og/compare/panels/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps3mh66bdxxx.png" updated: 2026-09-11 --- # Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS3MH66BDXXX RPS3MH66BDXXX leads on the differences that matter The largest is module efficiency: 2.20 pp more efficient. 3 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Renew Photovoltaics RPS1MH60MBXXX](https://comparepv.com/panel/renew-photovoltaics-rps1mh60mbxxx) | [Renew Photovoltaics RPS3MH66BDXXX](https://comparepv.com/panel/renew-photovoltaics-rps3mh66bdxxx) | | Manufacturer | Renew Photovoltaics | Renew Photovoltaics | | Power | 610 Wp | 640 Wp | | Efficiency | 21.49 % | 23.69 % | | Technology | PERC | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | RPS1MH60MBXXX | RPS3MH66BDXXX | Difference | | --- | --- | --- | --- | | Module efficiency | 21.49 % | 23.69 % | +2.20 pp for RPS3MH66BDXXX | | Temperature coefficient | -0.330 %/°C | -0.290 %/°C | +0.040 %/°C for RPS3MH66BDXXX | | Power density | 214.9 Wp/m² | 236.9 Wp/m² | +22.0 Wp/m² for RPS3MH66BDXXX | | Performance warranty | 25 yrs | 30 yrs | +5 yrs for RPS3MH66BDXXX | | Annual degradation | 0.55 %/yr | 0.40 %/yr | -0.15 %/yr for RPS3MH66BDXXX | | Rated power | 610 Wp | 640 Wp | +30 W for RPS3MH66BDXXX | | Open-circuit voltage | 41.95 V | 49.60 V | 7.65 V apart | | Short-circuit current | 18.41 A | 16.27 A | 2.14 A apart | | Module area | 2.838 m² | 2.701 m² | 0.137 m² apart | | Weight | 31.0 kg | 33.5 kg | -2.5 kg for RPS1MH60MBXXX | | Cell technology | PERC | TOPCon | PERC vs TOPCon | | Voltage at max power | 34.78 V | 41.70 V | 6.92 V apart | | Current at max power | 17.54 A | 15.36 A | 2.18 A apart | | Cell count | 120 | 132 | 12 cells apart | | Bifacial | No | Yes | No vs Yes | | Dimensions | 2178x1303x35 mm | 2382x1134x30 mm | 2178x1303x35 mm vs 2382x1134x30 mm | ## Every compared parameter | Parameter | RPS1MH60MBXXX | RPS3MH66BDXXX | | --- | --- | --- | | Rated power | 610 Wp | 640 Wp | | Module efficiency | 21.49 % | 23.69 % | | Power density | 214.9 Wp/m² | 236.9 Wp/m² | | Open-circuit voltage | 41.95 V | 49.60 V | | Voltage at max power | 34.78 V | 41.70 V | | Short-circuit current | 18.41 A | 16.27 A | | Current at max power | 17.54 A | 15.36 A | | Temperature coefficient | -0.330 %/°C | -0.290 %/°C | | Dimensions | 2178x1303x35 mm | 2382x1134x30 mm | | Module area | 2.838 m² | 2.701 m² | | Weight | 31.0 kg | 33.5 kg | | Weight per kWp | 50.8 kg/kWp | 52.3 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 30 yrs | | Annual degradation | 0.55 %/yr | 0.40 %/yr | | Cell technology | PERC | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 120 | 132 | | Bifacial | No | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year - **Cumulative output, RPS1MH60MBXXX:** 19,769 kWh - **Cumulative output, RPS3MH66BDXXX:** 21,473 kWh - **Gap:** 1,704 kWh ## Output when hot | Condition | Cell temperature | RPS1MH60MBXXX | RPS3MH66BDXXX | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 610 W | 640 W | 100.0% of rated power | | Cool, bright day | 40 °C | 580 W | 612 W | 95.0% of rated power | | Typical summer roof | 55 °C | 550 W | 584 W | 90.1% of rated power | | Hot roof | 70 °C | 519 W | 556 W | 85.2% of rated power | ## Against the whole database | Measure | RPS1MH60MBXXX | RPS3MH66BDXXX | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #8,208 | #612 | 14,129 | RPS3MH66BDXXX leads by 7,596 places | | Power density | #8,082 | #553 | 14,129 | RPS3MH66BDXXX leads by 7,529 places | | Heat behaviour | #8,613 | #2,220 | 14,129 | RPS3MH66BDXXX leads by 6,393 places | | Weight | #4,244 | #5,874 | 14,129 | RPS1MH60MBXXX leads by 1,630 places | | Warranty | #9,912 | #21 | 14,129 | RPS3MH66BDXXX leads by 9,891 places | | Overall | #5,588 | #1,555 | 14,129 | RPS3MH66BDXXX leads by 4,033 places | ## Questions ### Which panel is better: Renew Photovoltaics RPS1MH60MBXXX or Renew Photovoltaics RPS3MH66BDXXX? According to our database: **Renew Photovoltaics RPS3MH66BDXXX** has higher module efficiency (**23.69%** vs **21.49%**); **Renew Photovoltaics RPS3MH66BDXXX** tolerates heat better (temp coeff **-0.290%/°C** vs **-0.330%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Renew Photovoltaics RPS1MH60MBXXX and Renew Photovoltaics RPS3MH66BDXXX? **Renew Photovoltaics RPS1MH60MBXXX** has a module efficiency of **21.49%**, while **Renew Photovoltaics RPS3MH66BDXXX** is **23.69%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Renew Photovoltaics RPS1MH60MBXXX use vs Renew Photovoltaics RPS3MH66BDXXX? **Renew Photovoltaics RPS1MH60MBXXX** uses **PERC** cells; **Renew Photovoltaics RPS3MH66BDXXX** 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 Renew Photovoltaics RPS1MH60MBXXX and Renew Photovoltaics RPS3MH66BDXXX? **Renew Photovoltaics RPS1MH60MBXXX** has a **25 years** power warranty; **Renew Photovoltaics RPS3MH66BDXXX** 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 Renew Photovoltaics RPS1MH60MBXXX and Renew Photovoltaics RPS3MH66BDXXX bifacial panels? **Renew Photovoltaics RPS3MH66BDXXX** is bifacial (captures light from both faces); **Renew Photovoltaics RPS1MH60MBXXX** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD590](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd590) - 17 differences, the largest is module efficiency - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD585](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd585) - 17 differences, the largest is module efficiency - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD580](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd580) - 17 differences, the largest is module efficiency - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD575](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd575) - 17 differences, the largest is module efficiency - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD570](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd570) - 17 differences, the largest is rated power - [Renew Photovoltaics RPS1MH60MBXXX vs Renew Photovoltaics RPS2MH72BD560](https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps2mh72bd560) - 14 differences, the largest is rated power --- Source: https://comparepv.com/compare/renew-photovoltaics-rps1mh60mbxxx/renew-photovoltaics-rps3mh66bdxxx 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.