--- title: "Resun Solar RS6C-315M Solar Panel: Specs & Datasheet | ComparePV" description: "Resun Solar RS6C-315M solar panel. Specs: 19.36% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs6c-315m" image: "https://comparepv.com/og/panel/resun-solar-rs6c-315m.png" updated: 2026-10-23 --- # Resun Solar RS6C-315M Warranty pick, weak in heat 291 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Resun Solar - **Model:** RS6C-315M - **Series:** RS6C-M - **Rated power:** 315 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (291 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 315 W | 325 W | Typical | | | Module efficiency | 19.36% | 19.00% | Typical | 12,863 | | Power density | 193.6 | 190.0 | Typical | 12,837 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 16% | 13,659 | | Weight (kg) | 19.0 kg | 19.0 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 16% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.36% | 19.00% | Typical | 12,863 | | Power density | 193.6 | 190.0 | Typical | 12,837 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 16% | 13,659 | | Weight per kWp | 60.3 | 60.3 | Typical | 12,520 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 16% | 21 | ### Strengths - **30 year performance warranty** - Top 16% of the PERC 300-350 W segment, against a median of 25 yrs. ### Watch out for - **-0.390 %/°C temperature coefficient** - Bottom 16% of the PERC 300-350 W segment, against a median of -0.360. - **Best for:** Owners who value a long output guarantee. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 315 W - **Efficiency:** 19.36 % - **Voltage at Pmax (Vmp):** 33.58 V - **Current at Pmax (Imp):** 9.38 A - **Open-circuit voltage (Voc):** 40.59 V - **Short-circuit current (Isc):** 9.88 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.390 %/degC - **Temperature coefficient of Voc:** -0.320 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1640 mm - **Width:** 992 mm - **Thickness:** 35 mm - **Weight:** 19.0 kg - **Area:** 1.63 m2 - **Power density:** 193.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **First-year degradation:** 1.80 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 264 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12863 of 14129 | | Power density | 12837 of 14129 | | Temperature coefficient | 13659 of 14129 | | Weight | 12520 of 14129 | | Warranty | 21 of 14129 | ## Pros - **Guaranteed positive power tolerance** - A 0/+5W power tolerance eliminates the risk of receiving an underperforming unit relative to system design assumptions, an advantage over the standard ±3% tolerance common among mainstream-segment manufacturers. - **30-year linear power warranty** - The series is backed by a 30-year linear power warranty alongside a 12-year product warranty, matching comparable series in the segment (e.g., Sun Earth AGRI Mono) and translating into low annual degradation and a favorable LCOE over the system's lifetime. - **High wind and snow load resistance** - Reinforced frame and glass construction supports operation in demanding climatic conditions, making the RS6C-M series suitable for coastal, mountain, and high-snowfall installations. - **Anti-reflective, hydrophobic coating** - 5-busbar cells combined with an anti-reflective and hydrophobic coating improve light absorption and reduce soil accumulation, sustaining higher yield between cleaning cycles. - **Competitive efficiency up to 19.67%** - Maximum efficiency of 19.67% at up to 320 Wp is on par with the best comparable series in this power/efficiency bracket, such as SP Enerji (19.67%) and Philadelphia Solar PS-M60(BF) (19.6%). ## Cons - **No bifacial variant available** - Unlike the comparable Philadelphia Solar PS-M60(BF) series, RS6C-M modules are monofacial only, limiting additional energy yield from rear-side albedo gain, which matters for ground-mount or high-reflectance installations. - **Conventional full-cell 60-cell layout** - The series uses standard full-cell 60-cell PERC construction, while some peers in this segment (e.g., Sun Earth AGRI Mono) have moved to half-cell technology, typically offering lower resistive losses and slightly better module mechanical stability. - **No confirmed BNEF Tier 1 status** - Resun Solar was not found on current BNEF Tier 1 lists (Q1-Q3 2026), which can matter for investors assessing project bankability under non-recourse debt financing. ## About this series The RS6C-M series consists of classic, proven monocrystalline PERC modules in a 60-cell configuration, designed for residential installations and smaller on-grid systems where predictability and reliability matter without a premium price tag. The panels use 5-busbar cells together with an **anti-reflective, hydrophobic coating** that improves light absorption and limits dust buildup, helping the module maintain high output longer between cleanings. A key advantage is the **guaranteed positive power tolerance of 0 to +5W**, removing the risk of receiving an underperforming unit relative to the system design. The frame and glass construction enables **operation in demanding climatic conditions** - high wind and snow load ratings make the series suitable for coastal installations as well as mountain or heavy-snowfall regions. Another benefit is **stable performance in low-light conditions**, meaning mornings, evenings, and overcast days, which translates into real gains in annual energy yield. The whole series is backed by a **30-year linear power warranty**, resulting in low annual degradation and a favorable LCOE over the system's lifetime. It is a solid choice for investors who value reliability, straightforward installation, and a predictable return on investment. ## Notable figures - Efficiency of 19.4% matches the \*\*PERC 0-400W\*\* median - Power density of 193.6 W/m² matches the \*\*PERC 0-400W\*\* median - Temperature coefficient of -0.39%/°C is 0.03pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C) - higher losses in summer heat - 19.0 kg weight - 1.5 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg), reducing installation effort - Ranked #12863 out of 14129 panels for efficiency in the database ## Questions ### What is the maximum power output of the Resun Solar RS6C-M series panels? Modules in the RS6C-M series reach a maximum power output of up to 320 Wp. This is a typical value for 60-cell monocrystalline PERC panels, well suited for residential installations with moderate roof space where larger, higher-power panels won't fit. ### What warranty does the Resun Solar RS6C-M series come with? The manufacturer provides a 12-year product warranty along with a 30-year linear power warranty. This means low, predictable annual power degradation, resulting in stable energy yield and a favorable LCOE over the entire lifetime of the installation. ### What does the 0-+5W power tolerance mean for RS6C-M panels and why does it matter? A 0-+5W power tolerance guarantees the actual panel output is never below the rated label value, and may even exceed it. In practice, investors can be confident the purchased module won't underperform the system design assumptions, eliminating the risk of underestimated energy production. ### Do RS6C-M panels perform well in low-light and cloudy conditions? Yes, the PERC cells with 5 busbars used in the RS6C-M series deliver stable power output even under low irradiance, such as early morning, evening, and cloudy days. This results in higher annual energy yield compared to older cell technologies, particularly in regions with variable sunlight. ### Are RS6C-M panels resistant to heavy snow and wind loads? The frame and glass construction of the RS6C-M series is engineered to withstand demanding climate conditions, including high wind and snow loads. This makes the modules suitable both for mountainous regions with heavy snowfall and coastal areas exposed to strong winds. ### Do RS6C-M panels have a coating that reduces dirt buildup, and how often do they need cleaning? RS6C-M panels feature an anti-reflective and hydrophobic coating that improves light absorption and makes it harder for dust, pollen, and other contaminants to settle on the glass surface. This helps the module maintain high efficiency longer between cleanings, reducing maintenance frequency and costs for the installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS6C-M_300-320W-aa2033c1d17c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +4.0 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +4.0 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | Cooler, lighter, +3.9 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, +3.8 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, +3.8 pp, -5 yr warranty | | [Heckert Solar ZEUS 3.2 285WP FullBlack](https://comparepv.com/panel/heckert-solar-zeus-3-2-285wp-fullblack) | 285 W | Cooler, lighter, +3.8 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | -30 W, lighter, +3.6 pp | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | -45 W, lighter, +3.6 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -15 W, lighter, +3.6 pp | | [Resun Solar RS6C270P](https://comparepv.com/panel/resun-solar-rs6c270p) | 270 W | -45 W, -2.8 pp | | [Resun Solar RS6C-275P](https://comparepv.com/panel/resun-solar-rs6c-275p) | 275 W | -40 W, -2.6 pp | | [Resun Solar RS6C-280P](https://comparepv.com/panel/resun-solar-rs6c-280p) | 280 W | -35 W, -2.3 pp | | [Resun Solar RS6C-285P](https://comparepv.com/panel/resun-solar-rs6c-285p) | 285 W | -30 W, -2.0 pp | | [Resun Solar RS6C-290P](https://comparepv.com/panel/resun-solar-rs6c-290p) | 290 W | -25 W, -1.5 pp | | [Resun Solar RS6C-300M](https://comparepv.com/panel/resun-solar-rs6c-300m) | 300 W | -15 W, -0.9 pp | | [Resun Solar RS6C-305M](https://comparepv.com/panel/resun-solar-rs6c-305m) | 305 W | -10 W, -0.6 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +3.2 pp, +10 yr warranty | --- Source: https://comparepv.com/panel/resun-solar-rs6c-315m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.