--- title: "Silfab SIL-380 NT 380W Solar Panel - Specs & Review | ComparePV" description: "Silfab SIL-380 NT 380W solar panel. Specs: 19.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/silfab-sil-380-nt" updated: 2026-09-11 --- # Silfab SIL-380 NT Warranty pick, weak in heat 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Silfab - **Model:** SIL-380 NT - **Series:** SIL-380 NT - **Rated power:** 380 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 380 W | 380 W | Typical | | | Module efficiency | 19.20% | 19.90% | Weak - bottom 20% | 12,855 | | Power density | 191.9 | 199.0 | Weak - bottom 19% | 12,856 | | Temperature coefficient | -0.380 | -0.350 | Weak - bottom 7% | 13,397 | | Weight (kg) | 21.5 kg | 21.4 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.20% | 19.90% | Weak - bottom 20% | 12,855 | | Power density | 191.9 | 199.0 | Weak - bottom 19% | 12,856 | | Temperature coefficient | -0.380 | -0.350 | Weak - bottom 7% | 13,397 | | Weight per kWp | 56.6 | 55.8 | Typical | 10,727 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Strengths - **30 year performance warranty** - Top 13% of the PERC 350-400 W segment, against a median of 25 yrs. ### Watch out for - **-0.380 %/°C temperature coefficient** - Bottom 7% of the PERC 350-400 W segment, against a median of -0.350. Ranked 13,397th in the whole database. - **191.9 watts per square metre** - Bottom 19% of the PERC 350-400 W segment, against a median of 199.0. - **19.20% module efficiency** - Bottom 20% of the PERC 350-400 W segment, against a median of 19.90%. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 380 W - **Efficiency:** 19.20 % - **Voltage at Pmax (Vmp):** 38.67 V - **Current at Pmax (Imp):** 9.85 A - **Open-circuit voltage (Voc):** 47.88 V - **Short-circuit current (Isc):** 10.09 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.380 %/degC - **Temperature coefficient of Voc:** -0.300 %/degC - **Temperature coefficient of Isc:** 0.030 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1992 mm - **Width:** 994 mm - **Thickness:** 38 mm - **Weight:** 21.5 kg - **Area:** 1.98 m2 - **Power density:** 191.9 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:** 0.50 % - **Output after 30 years:** 314 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12855 of 14005 | | Power density | 12856 of 14005 | | Temperature coefficient | 13397 of 14005 | | Weight | 10727 of 14005 | | Warranty | 21 of 14005 | ## About this series The SIL-380 NT series is a high-efficiency premium mono-PERC module engineered for commercial-scale installations where maximizing power density per available roof or ground area is the priority. The panel uses 72 monocrystalline PERC cells in a 5-busbar layout as the source of stable solar energy conversion, even under variable irradiance conditions. Its silver anodized aluminum frame paired with a white backsheet gives installations a clean, uniform appearance, while the **rugged construction** withstands front-side loads up to 5400 Pa, making the module resistant to snow and high wind loads. Thanks to advanced cell technology, the panel is **PID-resistant**, ensuring stable electrical parameters throughout its service life in accordance with IEC 62804-1. Silfab backs the series with a **25-year workmanship warranty** and a **30-year linear power warranty**, making it an attractive choice for investors seeking long-term reliability and predictable ROI. The modules are manufactured in North America with full technical and customer support, and every batch undergoes rigorous quality control. The SIL-380 NT is well suited for both rooftop projects and various ground-mounted solar farms wherever **reliability and bankability** of a Tier 1 product matter most. ## Notable figures - Efficiency of 19.2% matches the \*\*PERC 0-400W\*\* median - At 191.9 W/m² power density, roof space requirements are typical for \*\*PERC 0-400W\*\* panels - -0.38%/°C temperature coefficient - 0.02pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C), expect higher hot weather losses - Weight of 21.5 kg is typical for \*\*PERC 0-400W\*\* panels - #12855 for efficiency, #13397 for temperature performance out of 14005 panels ## Questions ### Is the Silfab SIL-380 NT series still available for purchase? The SIL-380 NT series has been discontinued from active production and replaced by newer models in Silfab's lineup. Units may still be found through distributors clearing stock or on the secondary market, but buyers should verify the production date and warranty status, since Silfab now focuses service and support on its current series. ### What warranty comes with the Silfab SIL-380 NT panels? Silfab backs the SIL-380 NT series with a 25-year product workmanship warranty and a 30-year linear power output warranty. This means the manufacturer covers not only factory defects but also guarantees a defined energy output level over three decades, an important factor when evaluating long-term ROI, especially for commercial-scale projects. ### How does the PERC technology in the SIL-380 NT differ from standard mono cells? PERC (Passivated Emitter and Rear Cell) cells used in the SIL-380 NT include an additional rear-side passivation layer that reflects unused photons back into the silicon structure. This gives the panel higher conversion efficiency than conventional mono modules, particularly under low or diffuse light conditions, without a significant increase in production cost. ### Can the SIL-380 NT panel handle heavy snow loads? Yes, the SIL-380 NT's aluminum frame construction is rated for front-side loads up to 5400 Pa, well above standard requirements for most regions. This load rating makes the module well suited for areas with heavy snowfall as well as strong wind exposure, common in both rooftop and ground-mount installations across Central Europe. ### What does PID resistance mean for the Silfab SIL-380 NT panels? PID (Potential Induced Degradation) is a power loss effect caused by voltage potential differences between the cells and the frame, especially in high-voltage system strings. The SIL-380 NT is PID-resistant per IEC 62804-1, ensuring stable electrical parameters throughout its service life, even in large commercial installations with long panel strings. ### Are Silfab SIL-380 NT panels suitable for solar farms and commercial installations? Yes, the SIL-380 NT was designed for maximum power density on available roof or ground space, making it a solid choice for both commercial rooftops and ground-mount solar farms. Its Tier 1 manufacturer status and North American production further boost project bankability, an important factor for institutional financing. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Silfab-SIL-380-NT-20210722-Final-c1147f04ff50.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +3.9 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.9 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -40 W, lighter, +3.8 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -20 W, lighter, +3.8 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.8 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +20 W, lighter, +3.8 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +20 W, lighter, +3.8 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.8 pp | | [Maxeon SPR-MAX3-430-R](https://comparepv.com/panel/maxeon-spr-max3-430-r) | 430 W | Cooler, +3.5 pp, +10 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +3.4 pp, +10 yr warranty | | [Silfab SIL-370 NT mono PERC](https://comparepv.com/panel/silfab-sil-370-nt-mono-perc) | 370 W | -10 W, -0.5 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +4.8 pp, +10 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +4.5 pp, +10 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +4.3 pp, +10 yr warranty | | [Lina Energy LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440)](https://comparepv.com/panel/lina-energy-lepv-132-ultra-premium-black-440wp-lepv-440) | 440 W | +60 W, cooler, +3.2 pp | | [JA Solar NS-420MH-80](https://comparepv.com/panel/ja-solar-ns-420mh-80) | 420 W | Cooler, +3.1 pp, -5 yr warranty | --- Source: https://comparepv.com/panel/silfab-sil-380-nt Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.