--- title: "Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD550 - Solar Panel Comparison | ComparePV" description: "Compare Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD550 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-rps2mh72bd540/renew-photovoltaics-rps2mh72bd550" image: "https://comparepv.com/og/compare/panels/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd550.png" updated: 2026-09-11 --- # Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD550 RPS2MH72BD550 leads on the differences that matter The largest is module efficiency: 0.39 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Renew Photovoltaics RPS2MH72BD540](https://comparepv.com/panel/renew-photovoltaics-rps2mh72bd540) | [Renew Photovoltaics RPS2MH72BD550](https://comparepv.com/panel/renew-photovoltaics-rps2mh72bd550) | | Manufacturer | Renew Photovoltaics | Renew Photovoltaics | | Power | 540 Wp | 550 Wp | | Efficiency | 20.90 % | 21.29 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | RPS2MH72BD540 | RPS2MH72BD550 | Difference | | --- | --- | --- | --- | | Module efficiency | 20.90 % | 21.29 % | +0.39 pp for RPS2MH72BD550 | | Power density | 209.0 Wp/m² | 212.9 Wp/m² | +3.9 Wp/m² for RPS2MH72BD550 | | Rated power | 540 Wp | 550 Wp | +10 W for RPS2MH72BD550 | ## Every compared parameter | Parameter | RPS2MH72BD540 | RPS2MH72BD550 | | --- | --- | --- | | Rated power | 540 Wp | 550 Wp | | Module efficiency | 20.90 % | 21.29 % | | Power density | 209.0 Wp/m² | 212.9 Wp/m² | | Open-circuit voltage | 49.68 V | 49.74 V | | Voltage at max power | 40.66 V | 40.90 V | | Short-circuit current | 13.85 A | 14.03 A | | Current at max power | 13.29 A | 13.45 A | | Temperature coefficient | -0.320 %/°C | -0.320 %/°C | | Dimensions | 2278x1134x30 mm | 2278x1134x30 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 32.5 kg | 32.5 kg | | Weight per kWp | 60.2 kg/kWp | 59.1 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.45 %/yr | 0.45 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.320 %/°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, RPS2MH72BD540:** 17,783 kWh - **Cumulative output, RPS2MH72BD550:** 18,112 kWh - **Gap:** 329 kWh ## Output when hot | Condition | Cell temperature | RPS2MH72BD540 | RPS2MH72BD550 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 540 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 514 W | 524 W | 95.2% of rated power | | Typical summer roof | 55 °C | 488 W | 497 W | 90.4% of rated power | | Hot roof | 70 °C | 462 W | 471 W | 85.6% of rated power | ## Against the whole database | Measure | RPS2MH72BD540 | RPS2MH72BD550 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #10,148 | #8,776 | 14,129 | RPS2MH72BD550 leads by 1,372 places | | Power density | #10,176 | #8,563 | 14,129 | RPS2MH72BD550 leads by 1,613 places | | Heat behaviour | #8,376 | #8,376 | 14,129 | Tied - the same position in the database | | Weight | #12,476 | #12,099 | 14,129 | RPS2MH72BD550 leads by 377 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #7,974 | #7,059 | 14,129 | RPS2MH72BD550 leads by 915 places | ## Questions ### Which panel is better: Renew Photovoltaics RPS2MH72BD540 or Renew Photovoltaics RPS2MH72BD550? According to our database: **Renew Photovoltaics RPS2MH72BD550** has higher module efficiency (**21.29%** vs **20.90%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Renew Photovoltaics RPS2MH72BD540 and Renew Photovoltaics RPS2MH72BD550? **Renew Photovoltaics RPS2MH72BD540** has a module efficiency of **20.90%**, while **Renew Photovoltaics RPS2MH72BD550** is **21.29%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Renew Photovoltaics RPS2MH72BD540 use vs Renew Photovoltaics RPS2MH72BD550? **Renew Photovoltaics RPS2MH72BD540** uses **PERC** cells; **Renew Photovoltaics RPS2MH72BD550** uses **PERC**. 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 RPS2MH72BD540 and Renew Photovoltaics RPS2MH72BD550? **Renew Photovoltaics RPS2MH72BD540** has a **30 years** power warranty; **Renew Photovoltaics RPS2MH72BD550** 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 RPS2MH72BD540 and Renew Photovoltaics RPS2MH72BD550 bifacial panels? Both **Renew Photovoltaics RPS2MH72BD540** and **Renew Photovoltaics RPS2MH72BD550** 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 - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD560](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd560) - 4 differences, the largest is module efficiency - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD555](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd555) - 3 differences, the largest is module efficiency - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD545](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd545) - One difference: module efficiency - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD535](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd535) - The same specification on paper - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS2MH72BD530](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd530) - 3 differences, the largest is module efficiency - [Renew Photovoltaics RPS2MH72BD540 vs Renew Photovoltaics RPS3MH66BDXXX](https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps3mh66bdxxx) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/renew-photovoltaics-rps2mh72bd540/renew-photovoltaics-rps2mh72bd550 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.