--- title: "Renesola RS4-485N-E1 485W Solar Panel - Specs & Review | ComparePV" description: "Renesola RS4-485N-E1 485W solar panel. Specs: 22.47% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/renesola-rs4-485n-e1" updated: 2026-09-11 --- # Renesola RS4-485N-E1 Solid all-round for its segment 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Renesola - **Model:** RS4-485N-E1 - **Series:** RS4-470~490N-E1 - **Rated power:** 485 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (301 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 485 W | 470 W | Strong - top 23% | | | Module efficiency | 22.47% | 22.52% | Typical | 4,576 | | Power density | 224.7 | 225.2 | Typical | 4,501 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.2 kg | 23.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.47% | 22.52% | Typical | 4,576 | | Power density | 224.7 | 225.2 | Typical | 4,501 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 49.9 | 49.5 | Typical | 3,275 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 485 W - **Efficiency:** 22.47 % - **Voltage at Pmax (Vmp):** 36.25 V - **Current at Pmax (Imp):** 13.38 A - **Open-circuit voltage (Voc):** 44.20 V - **Short-circuit current (Isc):** 13.93 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 1903 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.2 kg - **Area:** 2.16 m2 - **Power density:** 224.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 424 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4576 of 14005 | | Power density | 4501 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 3275 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells** - N-type TOPCon technology delivers a lower degradation rate (LID/LeTID) and better high-temperature performance than older P-type PERC cells, translating into higher real-world annual yield, especially in warmer months. - **Bifacial construction** - The module is bifacial, capturing additional energy from reflected light on the rear side - a meaningful advantage over mono-facial panels in the same power class, such as the Silfab HN (20.9% efficiency, no indicated bifaciality in the comparison). - **30-year linear power warranty** - The manufacturer guarantees a minimum of 87.4% power output after 30 years, matching the premium N-type segment standard and supporting long-horizon ROI calculations relevant to both businesses and prosumers. - **Low Pmax temperature coefficient** - The power temperature coefficient is -0.29%/°C, limiting output losses on hot days compared to typical PERC panels (usually -0.34% to -0.38%/°C). - **High power density in a 120-cell format** - At 1903x1134 mm and up to 490 Wp, the series reaches up to 22.71% efficiency, and its 120-cell half-cut MBB layout enables dense installations on roofs with limited surface area. ## Cons - **Efficiency trails segment leaders** - Peak efficiency of 22.71% is noticeably lower than direct competitors in the same power class (490 Wp) - Solar-Fabrik Mono S4 Halfcut BC and Heckert Solar ZEUS 3.0 Performance both reach 24%, over 1.2 percentage points higher. ## About this series The Renesola RS4-470~490N-E1 series is designed to maximize energy yield under real-world operating conditions, even when the roof has limited surface area, and the investor expects a high power density installation. The modules utilize **N-type monocrystalline** cells, which contribute to better long-term stability and slower degradation over time. The use of **TOPCon technology** further enhances annual energy yield, particularly in variable sunlight conditions and during cooler months. Another key feature of the series is the **half-cut design with MBB**, which reduces internal losses and improves resistance to partial shading - a practical solution for chimneys, skylights, or carport installations. The **long linear power warranty** also adds value, which is important for prosumers and companies that prioritize long-term profitability. This is a good choice for homes, small and medium-sized businesses, and projects where high efficiency, predictable performance, and modern technology are valued over "paper" specifications. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*N-type 450-500W\*\* modules - At 224.7 W/m² power density, roof space requirements are typical for \*\*N-type 450-500W\*\* panels - At -0.29%/°C, hot weather performance is typical for \*\*N-type 450-500W\*\* panels - Ranked #4576 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the Renesola RS4-470~490N-E1 series come with? The RS4-470~490N-E1 series includes a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power warranty guaranteeing at least 87.4% of rated output at end of life. This is a strong warranty offering for residential and small commercial prosumers calculating ROI over a multi-decade horizon. ### How does the Renesola RS4-490N-E1 perform on roofs with chimneys or dormers? The RS4-470~490N-E1 uses a half-cut MBB (multi-busbar) cell layout, which splits each cell into two smaller segments. Partial shading from a chimney or dormer affects only a portion of the module's strings, significantly reducing power loss compared to full-cell designs. This makes the series a practical choice for complex roof configurations common in residential installations. ### What advantage does TOPCon N-type technology offer over older PERC panels? N-type TOPCon cells eliminate the LID (light-induced degradation) effect common in P-type PERC modules and degrade more slowly over time. The RS4-470~490N-E1 achieves up to 22.71% efficiency with a Pmax temperature coefficient of -0.29%/°C, meaning better performance during hot summers and cold months alike. The result is a higher annual energy yield from the same roof area. ### Is the Renesola RS4-490N-E1 a bifacial panel, and does that matter for a rooftop installation? Yes, the RS4-470~490N-E1 is a bifacial dual-glass module. On a standard pitched roof the rear-side gain is minimal because the roofing material absorbs most reflected light. Bifacial yield is most significant in ground-mount, carport, or flat-roof installations with a light-colored membrane. The dual-glass construction also improves moisture resistance and extends the module's mechanical service life. ### What are the cell count and physical dimensions of the Renesola RS4-470~490N-E1? The module features 120 half-cut N-type TOPCon cells and measures 1903 × 1134 × 30 mm, weighing approximately 24.2 kg. It uses the 182 mm (M10) cell format, ensuring compatibility with most racking and mounting systems available on the European market. Maximum power at STC is 490 Wp with efficiency up to 22.71%. ### Is Renesola a reliable manufacturer and should I trust their warranty? Renesola is a Bloomberg NEF Tier 1 rated manufacturer, meaning it meets the financial and production capacity benchmarks required by project-financing banks. Founded in 2005, the company operates its own manufacturing facilities. Tier 1 status is not a product quality certification, but it significantly reduces the risk of the manufacturer becoming insolvent before the warranty period expires. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/rs4-470-490n-n-type-182-120-mono-facial-module-2587b2d6439e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +25 W, cooler, +2.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +20 W, cooler, +2.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +15 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.0 pp | | [Renesola RS4-470N-E1](https://comparepv.com/panel/renesola-rs4-470n-e1) | 470 W | -15 W, -0.7 pp | | [Renesola RS4-475N-E1](https://comparepv.com/panel/renesola-rs4-475n-e1) | 475 W | -10 W, -0.5 pp | | [Renesola RS4-480N-E1](https://comparepv.com/panel/renesola-rs4-480n-e1) | 480 W | -0.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +75 W, cooler, +2.3 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +70 W, cooler, +2.1 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +65 W, lighter, +1.9 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +55 W, cooler, +1.9 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +55 W, cooler, +1.9 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +60 W, heavier, +1.8 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +60 W, cooler, +1.7 pp | --- Source: https://comparepv.com/panel/renesola-rs4-485n-e1 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.