--- title: "Resun Solar RS6C270P 270W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS6C270P 270W solar panel. Specs: 16.70% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs6c270p" updated: 2026-09-11 --- # Resun Solar RS6C270P Warranty pick, weak in heat 1,154 panels in the 170-370 W band, all technologies ## Identity - **Manufacturer:** Resun Solar - **Model:** RS6C270P - **Series:** RS6C-P - **Rated power:** 270 W - **Cell technology:** Polycrystalline ## How it compares Compared against 170-370 W band, all technologies (1154 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 270 W | 320 W | Weak - bottom 21% | | | Module efficiency | 16.70% | 18.09% | Typical | 13,522 | | Power density | 166.0 | 180.4 | Weak - bottom 25% | 13,531 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 20% | 13,579 | | Weight (kg) | 18.0 kg | 19.0 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 18% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 16.70% | 18.09% | Typical | 13,522 | | Power density | 166.0 | 180.4 | Weak - bottom 25% | 13,531 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 20% | 13,579 | | Weight per kWp | 66.7 | 63.3 | Typical | 13,171 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 18% | 21 | ### Strengths - **30 year performance warranty** - Top 18% of the 170-370 W band, against a median of 25 yrs. ### Watch out for - **-0.390 %/°C temperature coefficient** - Bottom 20% of the 170-370 W band, against a median of -0.360. - **166.0 watts per square metre** - Bottom 25% of the 170-370 W band, against a median of 180.4. - **Best for:** Residential. - **Not ideal for:** Hot climates and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 270 W - **Efficiency:** 16.70 % - **Voltage at Pmax (Vmp):** 30.72 V - **Current at Pmax (Imp):** 8.79 A - **Open-circuit voltage (Voc):** 37.90 V - **Short-circuit current (Isc):** 9.19 A - **Max system voltage:** 1500 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:** Polycrystalline - **Cell count:** 60 ### Physical - **Length:** 1640 mm - **Width:** 992 mm - **Thickness:** 30 mm - **Weight:** 18.0 kg - **Area:** 1.63 m2 - **Power density:** 166.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 228 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13522 of 14005 | | Power density | 13531 of 14005 | | Temperature coefficient | 13579 of 14005 | | Weight | 13171 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS6C-P series is a proven solution for grid-connected installations, built on classic 156x156 mm polycrystalline cells arranged 60 per module (6x10), split by **five busbars** for better current collection and lower resistive losses. The module stands out with its **anti-reflective, hydrophobic coating**, which improves light absorption and reduces surface dust buildup, resulting in more stable output even during morning and evening diffuse light or on cloudy days. The design was engineered for **harsh operating conditions** - coastal areas, deserts and lakeside sites - thanks to high resistance to wind and snow loads. The panel carries **PID-free** certification, eliminating the risk of potential-induced degradation and ensuring long-term power stability. An additional advantage is the **linear power warranty** with a very low annual efficiency drop, making the RS6C-P a solid choice for investors expecting predictable returns from their installation over many years. It is a fitting option for anyone looking for proven, robust poly technology without compromising on durability or build quality. ## Notable figures - At 16.7% efficiency, this panel is 5.1pp below the \*\*database\*\* median of 21.8% - At 166.0 W/m², this panel generates 52.1 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²) - -0.39%/°C temperature coefficient - 0.09pp worse than \*\*database\*\* median (-0.30%/°C), expect higher hot weather losses - Weight of 18.0 kg (8.5 kg below \*\*database\*\* median of 26.5 kg) allows easier transport and roof mounting - Ranked #13522 out of 14005 panels for efficiency in the database ## Questions ### Is the Resun Solar RS6C-P 270 Wp panel still available for purchase? The RS6C-P series has been discontinued and is no longer manufactured by Resun Solar. It may still be found through distributors clearing remaining stock or on the secondary market. Anyone planning to expand an existing installation built on this module should expect limited availability and consider comparable replacement models. ### What warranty comes with Resun Solar RS6C-P panels? The manufacturer backs the RS6C-P series with a 12-year product warranty and a 30-year linear power warranty. This means the output degradation of the 156x156 mm poly cells is contractually limited over that entire period, giving investors a predictable and stable energy yield from the 270 Wp module across three decades of operation. ### What do the five busbars in the RS6C-P panel provide, and is this better than standard 3BB? Five busbars (5BB) conduct current from the cell more efficiently than older 3BB layouts, reducing resistive losses and improving module efficiency. The shorter path electrons travel to the metallization grid lowers the impact of micro-cracks on output, making the RS6C-P more stable even with minor cell-level mechanical damage. ### Is the RS6C-P panel suitable for harsh environments such as coastal installations? Yes, the RS6C-P was engineered for demanding locations - coastal areas, desert regions, and sites near bodies of water. The module offers high resistance to wind and snow loads, and its anti-reflective, hydrophobic coating reduces soiling buildup, which matters under heavy moisture and salt exposure. ### What does the PID-free certification on the RS6C-P mean and why does it matter? PID-free means the RS6C-P panel resists potential-induced degradation, a phenomenon where voltage differences between cells and the grounded frame cause power loss. This certification helps the module maintain stable performance throughout its lifetime, even in large grid-tied arrays with high string voltages. ### Is the RS6C-P a bifacial panel, and how does that affect its use? No, the RS6C-P series is a monofacial panel built on classic polycrystalline cells. It generates energy only from light hitting its front surface, making it best suited for standard rooftop and ground-mount installations that don't rely on reflected light from the ground surface. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS6C270P-5eddb8e2bc2c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Canadian Solar CS3K-320P](https://comparepv.com/panel/canadian-solar-cs3k-320p) | 320 W | +50 W, +2.6 pp, -5 yr warranty | | [Canadian Solar CS3K-315P](https://comparepv.com/panel/canadian-solar-cs3k-315p) | 315 W | +45 W, +2.3 pp, -5 yr warranty | | [SunLink LNSK-320M](https://comparepv.com/panel/sunlink-lnsk-320m) | 320 W | +50 W, +2.2 pp, -5 yr warranty | | [Canadian Solar CS3K-310P-AG](https://comparepv.com/panel/canadian-solar-cs3k-310p-ag) | 310 W | +40 W, heavier, +2.0 pp | | [Rarlon PV Tech RL310HP-120](https://comparepv.com/panel/rarlon-pv-tech-rl310hp-120) | 310 W | +40 W, +1.9 pp | | [SunLink LNSK-315P](https://comparepv.com/panel/sunlink-lnsk-315p) | 315 W | +45 W, +1.9 pp, -5 yr warranty | | [Canadian Solar CS3K-310PB-AG](https://comparepv.com/panel/canadian-solar-cs3k-310pb-ag) | 310 W | +40 W, heavier, +1.7 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | +130 W, cooler, +5.9 pp | | [Lina Energy LEPV 400](https://comparepv.com/panel/lina-energy-lepv-400) | 400 W | +130 W, cooler, +5.6 pp | | [Phono Solar NS-360MH-60](https://comparepv.com/panel/phono-solar-ns-360mh-60) | 360 W | +90 W, cooler, +5.4 pp | | [PolyCrown Solar Tech NS-360MH-60](https://comparepv.com/panel/polycrown-solar-tech-ns-360mh-60) | 360 W | +90 W, cooler, +5.4 pp | | [Maxeon SPR-MAX3-390-COM](https://comparepv.com/panel/maxeon-spr-max3-390-com) | 390 W | +120 W, cooler, +5.4 pp | | [Meyer Burger MB\_TG120ByB\_390](https://comparepv.com/panel/meyer-burger-mb-tg120byb-390) | 390 W | +120 W, cooler, +5.1 pp | | [Panasonic EVPV380](https://comparepv.com/panel/panasonic-evpv380) | 380 W | +110 W, cooler, +5.0 pp | | [LG LG375Q1C-V5](https://comparepv.com/panel/lg-lg375q1c-v5) | 375 W | +105 W, cooler, +5.0 pp | | [Phono Solar NS-350MH-60](https://comparepv.com/panel/phono-solar-ns-350mh-60) | 350 W | +80 W, cooler, +4.8 pp | --- Source: https://comparepv.com/panel/resun-solar-rs6c270p Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.