--- title: "Silfab SIL-310 NL 310W Solar Panel - Specs & Review | ComparePV" description: "Silfab SIL-310 NL 310W solar panel. Specs: 18.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/silfab-sil-310-nl" updated: 2026-09-11 --- # Silfab SIL-310 NL Warranty pick, no clear weak spot 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Silfab - **Model:** SIL-310 NL - **Rated power:** 310 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 310 W | 325 W | Weak - bottom 17% | | | Module efficiency | 18.20% | 19.00% | Typical | 13,178 | | Power density | 182.4 | 190.0 | Typical | 13,151 | | Temperature coefficient | -0.360 | -0.360 | Typical | 12,345 | | Weight (kg) | 18.6 kg | 19.0 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 15% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 18.20% | 19.00% | Typical | 13,178 | | Power density | 182.4 | 190.0 | Typical | 13,151 | | Temperature coefficient | -0.360 | -0.360 | Typical | 12,345 | | Weight per kWp | 60.0 | 60.0 | Typical | 12,365 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 15% | 21 | ### Strengths - **30 year performance warranty** - Top 15% of the PERC 300-350 W segment, against a median of 25 yrs. - **Best for:** Owners who value a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 310 W - **Efficiency:** 18.20 % - **Voltage at Pmax (Vmp):** 32.44 V - **Current at Pmax (Imp):** 9.56 A - **Open-circuit voltage (Voc):** 39.69 V - **Short-circuit current (Isc):** 10.22 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.064 %/degC - **NOCT:** 46 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1700 mm - **Width:** 1000 mm - **Thickness:** 38 mm - **Weight:** 18.6 kg - **Area:** 1.70 m2 - **Power density:** 182.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 82.6 % - **First-year degradation:** 2.90 % - **Annual degradation:** 0.48 % - **Output after 30 years:** 258 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13178 of 14005 | | Power density | 13151 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 12365 of 14005 | | Warranty | 21 of 14005 | ## Notable figures - At 18.2% efficiency, this panel is 1.2pp below the \*\*PERC 0-400W\*\* median of 19.4% - Power density of 182.3 W/m² is 12.1 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - needs more roof space - At -0.36%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - 18.6 kg weight - 1.9 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg), reducing installation effort - Ranked #13178 out of 14005 panels for efficiency in the database ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Silfab-SIL-310-NL-20200702-Final-1-5bd3b859af9c.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, +5.1 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +5.1 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | Cooler, lighter, +5.1 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, +4.9 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, +4.9 pp, -5 yr warranty | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | -25 W, lighter, +4.8 pp | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | -50 W, lighter, +4.8 pp | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | -40 W, lighter, +4.8 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -10 W, lighter, +4.8 pp | | [Silfab SIL-300 ML](https://comparepv.com/panel/silfab-sil-300-ml) | 300 W | -10 W, -0.6 pp | | [Silfab SIL-320 BL](https://comparepv.com/panel/silfab-sil-320-bl) | 320 W | +10 W, hotter, +0.6 pp | | [Silfab SIL-330 NL](https://comparepv.com/panel/silfab-sil-330-nl) | 330 W | +20 W, +1.2 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +130 W, cooler, +4.7 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +125 W, cooler, +4.5 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | +90 W, +4.4 pp, +10 yr warranty | | [Jetion JT430SYk(B)](https://comparepv.com/panel/jetion-jt430syk-b) | 430 W | +120 W, cooler, +4.2 pp | --- Source: https://comparepv.com/panel/silfab-sil-310-nl Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.