--- title: "Renesola RS4-485NX-E1 485W Solar Panel - Specs & Review | ComparePV" description: "Renesola RS4-485NX-E1 485W solar panel. Specs: 22.47% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/renesola-rs4-485nx-e1" updated: 2026-09-11 --- # Renesola RS4-485NX-E1 Solid all-round for its segment 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Renesola - **Model:** RS4-485NX-E1 - **Series:** RS4-470~490NX-E1 - **Rated power:** 485 W - **Cell technology:** N-type ## 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, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 485 W - **Efficiency:** 22.47 % - **Voltage at Pmax (Vmp):** 36.25 V - **Current at Pmax (Imp):** 13.31 A - **Open-circuit voltage (Voc):** 43.82 V - **Short-circuit current (Isc):** 13.85 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:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 120 ### 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 cells reduce LID/LeTID degradation and offer better long-term stability compared to older PERC cells, resulting in a more predictable energy yield over a 20-30 year service life. - **Half-cut cell layout** - The half-cut cell design reduces power losses under partial shading and uneven irradiance - a common scenario on pitched roofs and around chimneys/vents in Poland - while also lowering the module's series resistance. - **30-year linear power warranty** - A 30-year linear power warranty supports long-term project economics and matches the standard now offered by leading N-type competitors such as Solar-Fabrik and Heckert Solar in their latest series. - **Tier-1 manufacturer with a 20-year track record** - ReneSola has been operating since 2005 and has historically held BloombergNEF Tier-1 bankability status, which has traditionally facilitated non-recourse project financing through banks. - **High power output on a compact footprint** - Power up to 490 Wp with efficiency up to 22.71% delivers more energy per unit of roof area than older PERC modules, which matters for installations with limited mounting space. ## Cons - **Shorter product warranty than segment leaders** - The product warranty is 15 years, while some competing premium N-type series (e.g., Solar-Fabrik Mono S4 Halfcut BC) offer 25-30 years of product warranty - any mechanical or material failure after this period falls on the owner to repair or replace. - **Efficiency below the N-type segment leaders** - Peak efficiency of 22.71% is notably lower than comparable series such as Solar-Fabrik Mono S4 Halfcut BC and Heckert Solar ZEUS 3.0 Performance, which reach 24% at the same 490 Wp power class - meaning a slightly larger array area is needed to achieve the same installed capacity. ## About this series The Renesola RS4-470~490NX-E1 series are modules designed for high energy production on a limited surface area - particularly where every square meter of roof space counts. The use of **N-type cells in TOPCon technology** results in more stable performance over time and lower degradation losses due to natural aging, making it easier to achieve predictable yields over the long term. The **half-cut cell design** improves the module's performance under partial shading and in situations of uneven sunlight, which are common on many roofs in Poland. This is a good choice for residential and commercial installations where the priority is combining power with a stable performance in warmer weather - this is facilitated by the **favorable temperature coefficient**. The series also features a **long linear power warranty**, which supports the profitability of the investment. The RS4-470~490NX-E1 will be suitable for discerning investors who expect modern technology without compromising on reliability and operational durability. ## 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 - Temperature coefficient of -0.29%/°C matches the \*\*N-type 450-500W\*\* median - In the top 33% for efficiency among all N-type panels ## Questions ### What warranty comes with the Renesola RS4-470~490NX-E1 solar panels? The RS4-470~490NX-E1 series includes a 15-year product warranty covering material and manufacturing defects, along with a 30-year linear power output warranty. This means Renesola guarantees predictable energy production over three decades, one of the longer warranty standards currently available on the market, and a key factor in calculating the long-term ROI of a PV installation. ### What is TOPCon technology and why does it matter for the RS4-470~490NX-E1 series? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that applies an ultra-thin tunnel oxide passivation layer to the rear of each cell, significantly reducing recombination losses. Compared to PERC, TOPCon cells deliver higher efficiency, slower long-term degradation, and better performance under elevated temperatures. This is how the RS4-470~490NX-E1 series achieves up to 490 Wp per module. ### Do the Renesola RS4-470~490NX-E1 panels perform well under partial shading from a chimney or dormer? Yes. The half-cut cell layout divides each cell into two halves, splitting the module into two independent electrical strings. This means that shading from a chimney, antenna, or dormer window causes a smaller overall power loss than in conventional full-cell modules. It is a meaningful advantage for residential rooftops with complex shapes or multiple obstructions. ### How much power do the Renesola RS4-470~490NX-E1 panels lose on a hot summer day? The N-type TOPCon cells used in this series have a temperature coefficient of Pmax of approximately -0.29%/°C. Older PERC modules typically reach around -0.35%/°C. In practice, this means the RS4-470~490NX-E1 loses less output during peak summer heat, resulting in more stable daily and seasonal energy yields compared to previous-generation technology. ### What are the dimensions and weight of the Renesola RS4-470~490NX-E1 panel, and will it fit a standard roof? The modules measure approximately 1903 x 1134 x 30 mm and weigh around 24 kg. This is the standard 120-cell format based on 182 mm (M10) wafers, compatible with most rail-based mounting systems available for pitched and flat roofs. These dimensions should be used when calculating how many modules fit within the available roof area during system design. ### Is Renesola a reliable manufacturer, and can I trust their 30-year power warranty? Renesola is a Bloomberg NEF Tier 1 rated manufacturer, a bankability assessment confirming financial credibility and the capacity to honor long-term warranty obligations. The company has been producing solar modules since 2005 and supplies European markets including Poland. Tier 1 status is not a product quality rating, but it does provide reasonable assurance that the manufacturer will remain in business for the duration of the warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/rs4-470-490nx-e1-1903-1134-30-full-black-88feaf2bc1f1.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-rs4-485nx-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.