--- title: "Resun Solar RSM070P 70W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RSM070P 70W solar panel. Specs: 13.80% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rsm070p" updated: 2026-09-11 --- # Resun Solar RSM070P Warranty pick, modest efficiency 163 panels in the 0-170 W band, all technologies ## Identity - **Manufacturer:** Resun Solar - **Model:** RSM070P - **Rated power:** 70 W - **Cell technology:** Polycrystalline ## How it compares Compared against 0-170 W band, all technologies (163 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 70 W | 120 W | Weak - bottom 5% | | | Module efficiency | 13.80% | 15.50% | Weak - bottom 12% | 13,934 | | Power density | 137.5 | 154.0 | Weak - bottom 16% | 13,919 | | Temperature coefficient | -0.390 | -0.370 | Weak - bottom 18% | 13,579 | | Weight (kg) | 5.6 kg | 9.0 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 13.80% | 15.50% | Weak - bottom 12% | 13,934 | | Power density | 137.5 | 154.0 | Weak - bottom 16% | 13,919 | | Temperature coefficient | -0.390 | -0.370 | Weak - bottom 18% | 13,579 | | Weight per kWp | 80.0 | 72.9 | Typical | 13,735 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 17% | 21 | ### Strengths - **30 year performance warranty** - Top 17% of the 0-170 W band, against a median of 25 yrs. ### Watch out for - **13.80% module efficiency** - Bottom 12% of the 0-170 W band, against a median of 15.50%. - **137.5 watts per square metre** - Bottom 16% of the 0-170 W band, against a median of 154.0. - **-0.390 %/°C temperature coefficient** - Bottom 18% of the 0-170 W band, against a median of -0.370. - **Best for:** Owners who value a long output guarantee. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 70 W - **Efficiency:** 13.80 % - **Voltage at Pmax (Vmp):** 18.77 V - **Current at Pmax (Imp):** 3.73 A - **Open-circuit voltage (Voc):** 22.50 V - **Short-circuit current (Isc):** 4.13 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:** Polycrystalline - **Cell count:** 36 ### Physical - **Length:** 760 mm - **Width:** 670 mm - **Thickness:** 25 mm - **Weight:** 5.6 kg - **Area:** 0.51 m2 - **Power density:** 137.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 59 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13934 of 14005 | | Power density | 13919 of 14005 | | Temperature coefficient | 13579 of 14005 | | Weight | 13735 of 14005 | | Warranty | 21 of 14005 | ## Notable figures - Module efficiency of 13.8% is 8.0pp below average for \*\*database\*\* panels (median: 21.8%) - At 137.5 W/m², this panel generates 80.6 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 - 5.6 kg weight - 20.9 kg lighter than \*\*database\*\* median (26.5 kg), reducing installation effort - In the top 99% for efficiency among all N-type panels ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RSM070P-63e331767d71.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Waaree WS-110 /12V](https://comparepv.com/panel/waaree-ws-110-12v) | 110 W | +40 W, +1.9 pp, -20 yr warranty | | [Resun Solar RSM080P](https://comparepv.com/panel/resun-solar-rsm080p) | 80 W | +10 W, +1.7 pp | | [Waaree WS-105 /12V](https://comparepv.com/panel/waaree-ws-105-12v) | 105 W | +35 W, +1.2 pp, -20 yr warranty | | [Resun Solar RSM090P](https://comparepv.com/panel/resun-solar-rsm090p) | 90 W | +20 W, +1.0 pp | | [Resun Solar RSM-100P-EX](https://comparepv.com/panel/resun-solar-rsm-100p-ex) | 100 W | +30 W, heavier, +0.9 pp | | [Waaree WS-100 /12V](https://comparepv.com/panel/waaree-ws-100-12v) | 100 W | +30 W, heavier, -20 yr warranty | | [PolyCrown Solar Tech NS-100MH-36](https://comparepv.com/panel/polycrown-solar-tech-ns-100mh-36) | 100 W | Cooler, +7.5 pp, -5 yr warranty | | [Isola New Energy YH100W-12M](https://comparepv.com/panel/isola-new-energy-yh100w-12m) | 100 W | +30 W, lighter, +5.8 pp | | [Centro Energy CE-100M36](https://comparepv.com/panel/centro-energy-ce-100m36) | 100 W | Hotter, +5.8 pp, -5 yr warranty | | [Renesola YH100W-18M](https://comparepv.com/panel/renesola-yh100w-18m) | 100 W | +30 W, cooler, +5.6 pp | | [Isola New Energy YH100W-18M](https://comparepv.com/panel/isola-new-energy-yh100w-18m) | 100 W | +30 W, cooler, +5.6 pp | | [Renesola YH95W-18M](https://comparepv.com/panel/renesola-yh95w-18m) | 95 W | +25 W, cooler, +4.7 pp | | [Isola New Energy YH95W-18M](https://comparepv.com/panel/isola-new-energy-yh95w-18m) | 95 W | +25 W, cooler, +4.7 pp | | [Runtech China RT100WM](https://comparepv.com/panel/runtech-china-rt100wm) | 100 W | +30 W, cooler, +1.1 pp | | [Resun Solar RSM060P](https://comparepv.com/panel/resun-solar-rsm060p) | 60 W | -10 W | --- Source: https://comparepv.com/panel/resun-solar-rsm070p Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.