--- title: "Risen RSM120-8-585BMDG Solar Panel: Specs & Datasheet | ComparePV" description: "Risen RSM120-8-585BMDG solar panel. Specs: 20.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/risen-rsm120-8-585bmdg" image: "https://comparepv.com/og/panel/risen-rsm120-8-585bmdg.png" updated: 2026-09-11 --- # Risen RSM120-8-585BMDG Warranty pick, heavy for its output 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Risen - **Model:** RSM120-8-585BMDG - **Series:** TITAN - **Rated power:** 585 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 560 W | Typical | | | Module efficiency | 20.70% | 21.29% | Weak - bottom 8% | 10,842 | | Power density | 206.7 | 212.9 | Weak - bottom 6% | 11,004 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,846 | | Weight (kg) | 37.0 kg | 30.8 kg | Weak - bottom 1% | | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.70% | 21.29% | Weak - bottom 8% | 10,842 | | Power density | 206.7 | 212.9 | Weak - bottom 6% | 11,004 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,846 | | Weight per kWp | 63.2 | 52.7 | Weak - bottom 1% | 12,973 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. ### Watch out for - **63.2 kg per kWp** - Bottom 1% of the PERC 550-600 W segment, against a median of 52.7. Ranked 12,973rd in the whole database. - **206.7 watts per square metre** - Bottom 6% of the PERC 550-600 W segment, against a median of 212.9. Ranked 11,004th in the whole database. - **20.70% module efficiency** - Bottom 8% of the PERC 550-600 W segment, against a median of 21.29%. Ranked 10,842nd in the whole database. - **Best for:** Residential, commercial, utility-scale and hot-climate. - **Not ideal for:** Weight-limited structures, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 20.70 % - **Voltage at Pmax (Vmp):** 34.22 V - **Current at Pmax (Imp):** 17.10 A - **Open-circuit voltage (Voc):** 41.10 V - **Short-circuit current (Isc):** 18.11 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 37.0 kg - **Area:** 2.83 m2 - **Power density:** 206.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 86.5 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 497 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10842 of 14129 | | Power density | 11004 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 12973 of 14129 | | Warranty | 21 of 14129 | ## Pros - **210 mm cells and high power density** - Large-format 210 mm silicon cells combined with multi-busbar technology enable up to 615 Wp and up to 21.7% efficiency in a relatively compact module footprint, competitive against similarly classed PERC products (e.g., GCL-M12/60H matches the same 615 Wp / 21.7% efficiency). - **Low -0.34%/°C temperature coefficient** - The RSM130-8 datasheet confirms a Pmax temperature coefficient of -0.34%/°C, better than the typical PERC range of -0.35 to -0.40%/°C, resulting in lower production losses on hot days when module temperature can exceed 60°C. - **Extended power warranty up to 30 years** - Several TITAN variants offer a 30-year linear power warranty, exceeding the standard 25-year term common among PERC manufacturers in this segment and improving long-term LCOE economics. - **Reinforced frame for heavy loads** - A reinforced frame design improves resistance to snow and wind loads, which is practically relevant under Polish climate conditions with periodic heavy winter snowfall. - **Tier-1 manufacturer with 40 years of history** - Risen Energy, founded in 1986, is listed as a Tier-1 (bankable) manufacturer by agencies such as BloombergNEF, reducing project financial risk and easing bank financing for commercial-scale installations. ## Cons - **PERC efficiency trails TOPCon rivals** - The maximum 21.7% efficiency is noticeably lower than comparable 615 Wp N-type TOPCon modules from competitors: JA Solar JAM72D40 LB (23.2%) and Longi Hi-MO X6 Explorer (22.8%). The 1.1-1.5 percentage point gap means lower energy yield from the same roof area. - **No bifacial variant available** - The TITAN series is monofacial-only, while some competing 210 mm platforms (e.g., GCL-M12/60H) also offer bifacial variants that add 5-15% extra output on high-albedo surfaces or in ground-mount installations. - **12-year product warranty** - The standard 12-year product warranty is shorter than the growing 15-year market trend seen on newer tier-1 modules, including other TOPCon-based Titan variants, which may affect the perceived long-term protection of the investment. ## About this series The Risen TITAN series introduces a new quality in installation design thanks to the use of **large-format 210 mm silicon cells**. This innovative solution allows for significantly higher power density while maintaining compact dimensions, which is key for optimizing limited roof space. The use of advanced **multi-busbar technology** effectively reduces internal energy losses and minimizes the risk of micro-cracks, which directly translates into long-term production stability. Modules from this series effectively solve the problem of low efficiency in difficult conditions, offering high performance even in diffused light. Thanks to an **exceptionally low temperature coefficient**, TITAN panels operate much more efficiently on hot days, clearly distinguishing them from older competitor solutions. These products are dedicated to both conscious prosumers and commercial investors who care about **maximizing return on investment** while simultaneously reducing system LCOE costs. The special reinforced frame design further increases resistance to extreme snow and wind loads. By choosing the TITAN series, you are investing in advanced technology that combines modern cell architecture with the highest durability, making it one of the most cost-effective choices on the Polish photovoltaic market. ## Notable figures - Module efficiency of 20.7% is 0.6pp below average for \*\*PERC 550-600W\*\* panels (median: 21.3%) - At 206.7 W/m², this panel generates 6.2 W/m² less per unit area than \*\*PERC 550-600W\*\* median (212.9 W/m²) - Temperature coefficient of -0.34%/°C matches the \*\*PERC 550-600W\*\* median - At 37.0 kg, this panel is 6.2 kg heavier than the \*\*PERC 550-600W\*\* median (30.8 kg) - more demanding for installation crews - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### What makes the 210 mm cells in Risen TITAN panels stand out? Risen TITAN uses large-format 210 mm silicon cells that enable a peak output of up to 615 Wp per module. The larger cell area combined with multi-busbar technology reduces resistive losses and lowers the risk of micro-cracks. In practice, this means higher power density per square meter of roof space and stable energy production over the entire service life of the system. ### What is the warranty on Risen TITAN solar panels? Risen provides a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty for the TITAN series. Over those 30 years, the panel is guaranteed to retain at least 80.7% of its rated output. A 30-year power warranty is among the longer standards in the industry and reflects the manufacturer's confidence in the durability of its 210 mm PERC technology. ### Is the Risen TITAN RSM120-8-615M a bifacial module? No, the TITAN series in the RSM120-8 variant is a monofacial panel - energy is harvested from the front cell surface only. If your system is installed above a highly reflective surface such as a white TPO membrane or light-colored gravel and you want to capture albedo gain, Risen's bifacial models would be worth considering. For standard pitched roofs, however, the monofacial TITAN module is fully adequate and offers lower system BoS costs. ### Do Risen TITAN panels perform well on hot summer days? Yes. The PERC technology used in the TITAN series features a low temperature coefficient of power (approximately -0.34%/°C), meaning smaller output losses at high temperatures compared to older polycrystalline modules. At a typical cell temperature of 65°C in summer, power degradation is noticeably lower, directly translating into higher annual energy yields and a shorter investment payback period. ### Can Risen TITAN panels withstand heavy snow loads and strong winds? Yes. The TITAN series features a reinforced aluminum frame that meets IEC standards for snow loads up to 5,400 Pa and wind pressure up to 2,400 Pa. These ratings are suitable for the vast majority of locations in Poland, including mountain regions with harsh winters. That said, always verify the technical documentation against a structural engineering assessment before installation. ### Is Risen Energy a reliable manufacturer and is the 30-year warranty realistic? Risen Energy is listed as a Tier 1 manufacturer by BloombergNEF, meeting strict financial and production criteria. The company has been operating since 1986 and is publicly traded on the Shenzhen Stock Exchange, providing financial transparency. This is a key factor when assessing the credibility of the 30-year power warranty - Tier 1 classification is the industry signal that a manufacturer has the resources to honor long-term obligations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/HSA_RSM120-8-585-610BMDG_IEC1500V-35mm_2023H1-2-EN-d0fcd81665c6.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, cooler, +3.7 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, 21 kg lighter, +3.7 pp | | [Risen RSM120-8-590M](https://comparepv.com/panel/risen-rsm120-8-590m) | 590 W | Lighter, -5 yr warranty | | [Risen RSM120-8-595M](https://comparepv.com/panel/risen-rsm120-8-595m) | 595 W | Lighter, +0.3 pp, -5 yr warranty | | [Risen RSM120-8-600M](https://comparepv.com/panel/risen-rsm120-8-600m) | 600 W | Lighter, +0.5 pp, -5 yr warranty | | [Risen RSM120-8-605M](https://comparepv.com/panel/risen-rsm120-8-605m) | 605 W | Lighter, +0.7 pp, -5 yr warranty | | [Risen RSM120-8-610M](https://comparepv.com/panel/risen-rsm120-8-610m) | 610 W | Lighter, +0.9 pp, -5 yr warranty | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | +95 W, lighter, +3.3 pp | | [Gamko New Energy GKA210N120-675](https://comparepv.com/panel/gamko-new-energy-gka210n120-675) | 675 W | +90 W, lighter, +3.2 pp | | [Q-SUN Solar QN-670HJT-01](https://comparepv.com/panel/q-sun-solar-qn-670hjt-01) | 670 W | +85 W, cooler, +3.0 pp | | [Gamko New Energy GKA210N120-670](https://comparepv.com/panel/gamko-new-energy-gka210n120-670) | 670 W | +85 W, lighter, +3.0 pp | | [Q-SUN Solar QN-665HJT-01](https://comparepv.com/panel/q-sun-solar-qn-665hjt-01) | 665 W | +80 W, cooler, +2.8 pp | | [Gamko New Energy GKA210N120-665](https://comparepv.com/panel/gamko-new-energy-gka210n120-665) | 665 W | +80 W, lighter, +2.8 pp | --- Source: https://comparepv.com/panel/risen-rsm120-8-585bmdg 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.