--- title: "Risen RSM108-11-490BNDG Solar Panel: Specs & Datasheet | ComparePV" description: "Risen RSM108-11-490BNDG solar panel. Specs: 22.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-490bndg" image: "https://comparepv.com/og/panel/risen-energy-co-ltd-rsm108-11-490bndg.png" updated: 2026-09-11 --- # Risen RSM108-11-490BNDG Middle of its segment, heavy for its output 1,096 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Risen - **Model:** RSM108-11-490BNDG - **Series:** RSM108-11-490-515BNDG - **Rated power:** 490 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1096 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 490 W | 465 W | Strong - top 12% | | | Module efficiency | 22.00% | 22.52% | Weak - bottom 18% | 6,580 | | Power density | 220.3 | 225.2 | Weak - bottom 19% | 6,339 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 27.0 kg | 24.0 kg | Weak - bottom 15% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.00% | 22.52% | Weak - bottom 18% | 6,580 | | Power density | 220.3 | 225.2 | Weak - bottom 19% | 6,339 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 55.1 | 52.2 | Weak - bottom 15% | 9,610 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.1 kg per kWp** - Bottom 15% of the TOPCon 450-500 W segment, against a median of 52.2. - **22.00% module efficiency** - Bottom 18% of the TOPCon 450-500 W segment, against a median of 22.52%. - **220.3 watts per square metre** - Bottom 19% of the TOPCon 450-500 W segment, against a median of 225.2. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 490 W - **Efficiency:** 22.00 % - **Voltage at Pmax (Vmp):** 32.65 V - **Current at Pmax (Imp):** 15.01 A - **Open-circuit voltage (Voc):** 39.61 V - **Short-circuit current (Isc):** 15.74 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:** 0.046 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 1961 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.0 kg - **Area:** 2.22 m2 - **Power density:** 220.3 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:** 428 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6580 of 14129 | | Power density | 6339 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 9610 of 14129 | | Warranty | 21 of 14129 | ## Pros - **High-efficiency N-type TOPCon cells** - Peak module efficiency reaches 23.2% (2025H1 datasheet), putting the series on par with Sunpro Power (23.17%) and Huasun Aurora Pro (23.17%), and clearly ahead of Canadian Solar TOPBiHiKu6 (22.8%) at the same 515 Wp max power. - **Bifacial design boosts energy yield** - Dual-sided generation adds a real production bonus on bright roofs, ground-mount, or carport structures - especially valuable for installations over high-albedo surfaces, a potential mono-facial modules cannot capture. - **108 half-cut cells reduce internal losses** - The half-cut format lowers series resistance and mitigates partial-shading effects (hot spots, soiling-related degradation), a meaningful operational advantage over older full-cell 60/72 modules. - **30-year linear warranty with 0.4%/year degradation** - The manufacturer guarantees at least 87.4% of nominal power after 30 years - comparable to leading peers in this class (Sunpro, Huasun) and notably better than older PERC lines with a 25-year warranty dropping to ~84%. - **Risen is a bankable Tier-1 manufacturer since 2023** - The series is active and current (released in 2023, not discontinued), and Risen - founded in 1986 - holds BNEF Tier-1 status, easing bank financing for commercial and industrial projects. ## Cons - **Product warranty shorter than some peers** - 15 years of product warranty is standard for the segment, but some Tier-1 manufacturers (e.g., Canadian Solar, JA Solar) in their 2025/2026 premium lines extended this to 25-30 years, matching the power warranty term - here a gap remains (15 years vs. 30 years on power), which can matter when negotiating service terms on long-term C&I projects. ## About this series The Risen RSM108-11-490-515BNDG series is engineered for maximum energy gain in spaces where every square meter counts - rooftops, commercial buildings, and industrial installations. The use of **N-type TOPCon cells** helps mitigate typical power losses over time and enhances energy capture in less-than-ideal conditions, such as high temperatures or overcast days. This translates to more stable energy production and predictable savings. These modules utilize a **bifacial structure**, enabling them to capture energy from both sides - particularly advantageous on light-colored roofs, ground-mounted systems, and car park canopies. The configuration with **108 half-cells** supports performance under partial shading and minimizes internal losses, offering a real-world advantage compared to many conventional modules. Furthermore, anti-degradation solutions, including **anti-LID and anti-PID**, have been implemented, complemented by a **long linear warranty** - a key consideration for investors seeking a secure return on their installations. ## Notable figures - Module efficiency of 22.0% is 0.5pp below average for \*\*TOPCon 450-500W\*\* panels (median: 22.5%) - Power density of 220.3 W/m² is 4.8 W/m² below \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - needs more roof space - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 450-500W\*\* panels - At 27.0 kg (3.0 kg above \*\*TOPCon 450-500W\*\* median of 24.0 kg), requires checking roof load capacity - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### What warranty does the Risen RSM108-11-490-515BNDG series come with? Risen provides 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 after 30 years. This is among the longer power warranties currently available, making the series a solid choice for investors focused on a predictable return on their solar installation. ### How much does the Risen RSM108-11-490-515BNDG panel weigh, and is it suitable for a pitched roof? Each module weighs 27 kg and measures 1961 × 1134 × 30 mm. Before installing on a pitched roof, a structural assessment of the roof framing is recommended, since the combined load of a larger array is substantial. The 108 half-cut cell layout allows flexible string design, but due to the panel's size, installation by an experienced crew is strongly advised. ### Does the bifacial design of the RSM108-11-490-515BNDG actually increase energy output? Yes. The bifaciality factor is approximately 80%, meaning the rear side can generate up to 80% of what the front side produces under the same irradiance. Real-world gains depend on the albedo of the surface beneath the array - light-colored gravel, concrete, or snow deliver the best results. On dark roof tiles the benefit is limited, but ground-mounted systems and carport installations see a meaningful boost in annual yield. ### How do the Risen RSM108-11-490-515BNDG panels perform in high summer temperatures? The temperature coefficient of Pmax is -0.29%/°C, one of the better figures for crystalline silicon modules. At a roof surface temperature of 70°C versus the STC reference of 25°C, the panel loses roughly 13% of rated power - compared to 15-18% typical for older PERC technology. N-type TOPCon cells are inherently less susceptible to thermal degradation than P-type cells. ### How do the N-type TOPCon cells in the RSM108-11-490-515BNDG differ from standard PERC cells? TOPCon cells include an additional passivation layer that reduces recombination losses, resulting in higher efficiency (up to 23.2%) and a lower temperature coefficient compared to PERC. The practical difference for the end user is built-in protection against LID (light-induced degradation during initial sun exposure) and PID, delivering more stable output throughout the entire service life of the installation. ### Are the Risen RSM108-11-490-515BNDG modules compatible with popular inverters? Yes. The series is rated for 1500 V DC systems, which is the standard for most modern three-phase string inverters including SMA, Fronius, Huawei, and SolarEdge. When designing the string, the open-circuit voltage (Voc, approximately 41 V at 515 W) must be matched to the inverter's MPPT input range. Risen does not mandate a specific inverter brand - the choice is left to the system designer. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1800303699693ab5797948d-165ded24ae50.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.7 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.5 pp | | [Risen RSM108-11-495BNDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-495bndg) | 495 W | +0.3 pp | | [Risen RSM108-11-490-515BNDG-500](https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-490-515bndg-500) | 500 W | +10 W, +0.5 pp | | [Risen RSM108-11-490-515BNDG-502](https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-490-515bndg-502) | 502 W | +12 W, +0.7 pp | | [Risen RSM108-11-505BNDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-505bndg) | 505 W | +15 W, +0.7 pp | | [Risen RSM108-11-510BNDG](https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-510bndg) | 510 W | +20 W, +0.9 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +70 W, cooler, +2.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +65 W, cooler, +2.6 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +60 W, lighter, +2.4 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +50 W, lighter, +2.4 pp | --- Source: https://comparepv.com/panel/risen-energy-co-ltd-rsm108-11-490bndg Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.