--- title: "Resun Solar RS8I585M-F30 585W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS8I585M-F30 585W solar panel. Specs: 22.65% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs8i585m-f30" updated: 2026-09-11 --- # Resun Solar RS8I585M-F30 Light for its output, no clear weak spot 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** Resun Solar - **Model:** RS8I585M-F30 - **Series:** RS8I-M-F30 TOPCON - **Rated power:** 585 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 550-600 W (1018 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 22.65% | 22.44% | Typical | 3,522 | | Power density | 226.5 | 224.4 | Typical | 3,500 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 27.2 kg | 31.2 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.65% | 22.44% | Typical | 3,522 | | Power density | 226.5 | 224.4 | Typical | 3,500 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 46.5 | 53.8 | Strong - top 12% | 1,186 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **46.5 kg per kWp** - Top 12% of the TOPCon 550-600 W segment, against a median of 53.8. - **Best for:** Commercial and utility-scale. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 22.65 % - **Voltage at Pmax (Vmp):** 42.87 V - **Current at Pmax (Imp):** 13.65 A - **Open-circuit voltage (Voc):** 50.80 V - **Short-circuit current (Isc):** 14.42 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 144 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.2 kg - **Area:** 2.58 m2 - **Power density:** 226.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 494 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3522 of 14005 | | Power density | 3500 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 1186 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS8I-M-F30 TOPCON series is a premium-class module lineup built on N-type mono-crystalline **TOPCon** cells with half-cell technology, designed for installations where maximizing energy yield from limited roof or ground space is essential. The **16/18BB multi-busbar technology** reduces internal power loss and significantly lowers the risk of failures caused by cell micro-cracks, resulting in higher long-term reliability. The panels stand out with their **strong anti-PID resistance**, keeping power degradation low and improving both energy output and LCOE compared to older-generation modules. Another advantage is the robust mechanical build, certified for high wind and snow loads, along with resistance to salt mist and ammonia, making the series a solid choice for utility-scale solar farms as well as agricultural and coastal installations. The high-transmittance anti-reflective tempered glass ensures more stable performance under low-light conditions. The whole series is backed by a **30-year linear power warranty**, giving investors predictable energy revenue throughout the entire lifetime of the installation. ## Notable figures - At 22.6% efficiency, this panel is on par with typical \*\*TOPCon 550-600W\*\* modules - Power density of 226.5 W/m² matches the \*\*TOPCon 550-600W\*\* median - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 550-600W\*\* panels - At 27.2 kg, this panel is 4.0 kg lighter than \*\*TOPCon 550-600W\*\* median (31.2 kg) - easier handling during installation - #3522 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What is the maximum power output of the RS8I-M-F30 TOPCON panel? Panels from the RS8I-M-F30 TOPCON series reach a maximum power output of up to 585 Wp. This is achieved through monocrystalline N-type TOPCon half-cut cells combined with 16/18BB multi-busbar technology, which reduces internal power losses and delivers a high energy yield per unit of module area, ideal for limited roof or ground space. ### What warranty applies to the RS8I-M-F30 TOPCON series? The manufacturer provides a 15-year product warranty and a 30-year linear power warranty. This means the panel retains a guaranteed percentage of its initial power output throughout its service life, giving investors predictable energy revenue and easier ROI planning for their PV installation. ### Are the RS8I-M-F30 TOPCON panels bifacial? No, the RS8I-M-F30 TOPCON series consists of monofacial panels rather than bifacial modules. Nevertheless, thanks to TOPCon technology and high-transmittance anti-reflective tempered glass, these panels still deliver excellent performance even under low irradiance, making them a versatile choice for most rooftop and ground-mounted installations. ### What is TOPCon technology and how does it differ from PERC? TOPCon (Tunnel Oxide Passivated Contact) is a more advanced N-type cell technology that reduces carrier recombination, delivering higher efficiency and lower power degradation over time compared to older P-type PERC cells. In practice, this means a higher energy yield per module area and better resistance to high temperatures and PID effect. ### Are the RS8I-M-F30 TOPCON panels suitable for utility-scale solar farms? Yes, this series is well suited for large ground-mounted installations. A robust mechanical structure certified for high wind and snow loads, strong PID resistance, and resistance to salt mist and ammonia make the panels a good fit for solar farms as well as agricultural or coastal sites. ### Do the RS8I-M-F30 TOPCON panels perform well under low light conditions? Yes, the high-transmittance anti-reflective tempered glass used in the RS8I-M-F30 TOPCON series ensures more stable energy production during cloudy weather, early morning, evening, or diffuse light conditions. Combined with TOPCon technology, this results in a higher annual energy yield compared to older-generation panels. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS8I585M-F30-d58370372619.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -25 W, cooler, +2.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -30 W, cooler, +2.0 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, heavier, +1.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | -35 W, lighter, +1.8 pp | | [Resun Solar RS8I-M HC-535](https://comparepv.com/panel/resun-solar-rs8i-m-hc-535) | 535 W | -50 W, hotter, -1.9 pp | | [Resun Solar RS8I-540M-BD](https://comparepv.com/panel/resun-solar-rs8i-540m-bd) | 540 W | -45 W, hotter, -1.7 pp | | [Resun Solar RS8I-M HC-540](https://comparepv.com/panel/resun-solar-rs8i-m-hc-540) | 540 W | -45 W, hotter, -1.8 pp | | [Resun Solar RS8I-545M-BD](https://comparepv.com/panel/resun-solar-rs8i-545m-bd) | 545 W | -40 W, hotter, -1.5 pp | | [Resun Solar RS8I-M HC-545](https://comparepv.com/panel/resun-solar-rs8i-m-hc-545) | 545 W | -40 W, hotter, -1.6 pp | | [Resun Solar RS8I-M FULL BLACK 550W](https://comparepv.com/panel/resun-solar-rs8i-m-full-black-550w) | 550 W | -35 W, hotter, -1.4 pp | | [Resun Solar RS8I-M HC-555](https://comparepv.com/panel/resun-solar-rs8i-m-hc-555) | 555 W | -30 W, hotter, -1.2 pp | | [Resun Solar RS8I-555M-F30](https://comparepv.com/panel/resun-solar-rs8i-555m-f30) | 555 W | -30 W, hotter, -1.1 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, cooler, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, cooler, +2.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/resun-solar-rs8i585m-f30 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.