Skip to main content
Silfab Brand review

SIL-380 NT

380 Wp PERC
ComparePV verdict

Warranty pick, weak in heat

Rank 11,353 of 14,005
Compare panels Datasheet PDF
Power (Wp)
380
Typical for its class
Efficiency (%)
19.20
Weak · bottom 20%
Density (Wp/m²)
191.9
Weak · bottom 19%
Temp (%/°C)
-0.380
Weak · bottom 7%
Weight (kg)
21.5
Typical · median 21.4 kg
Warranty (yrs)
30
Strong · top 13%

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.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall 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
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

Hot climates, roofs where every square metre has to count and tight roof space.

Strengths
30 year performance warranty

Top 13% of the PERC 350-400 W segment, against a median of 25 yrs.

Watch-outs
-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%.

Notes from the database
  • 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

Specifications

Open datasheet PDF
Nominal power (Pmax) 380 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.20 % Weak Segment median 19.90%
Vmpp · Impp 38.67 V · 9.85 A Operating point at max power
Voc · Isc 47.88 V · 10.09 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1992×994×38 mm · 1.98 m² of roof
Weight 21.5 kg Typical Typical · median 21.4 kg
Cells 72 · PERC Monocrystalline
Coefficient Pmax -0.380 %/°C Weak bottom 7% of its segment
Coefficient Voc · Isc -0.300 · 0.030 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Strong top 13% · median 25 yrs
End-of-warranty output 82.6 % Equals 314 W guaranteed
Degradation 2.90 → 0.50 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.380 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Silfab SIL-380 NT 380 W 19.20% -0.380 21.5 kg You are here
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +3.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +3.9 pp
GKA210M340W 340 W 23.00% - 16.2 kg -40 W, lighter, +3.8 pp
GKA210M360W 360 W 23.00% - 16.2 kg -20 W, lighter, +3.8 pp
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.8 pp
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg +20 W, lighter, +3.8 pp
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg +20 W, lighter, +3.8 pp
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.8 pp
SPR-MAX3-430-R 430 W 22.70% -0.270 21.2 kg Cooler, +3.5 pp, +10 yr warranty
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +3.4 pp, +10 yr warranty
SIL-370 NT mono PERC 370 W 18.70% -0.380 21.5 kg -10 W, -0.5 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg Cooler, +4.8 pp, +10 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg Cooler, +4.5 pp, +10 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg Cooler, +4.3 pp, +10 yr warranty
LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440) 440 W 22.37% -0.290 21.0 kg +60 W, cooler, +3.2 pp
NS-420MH-80 420 W 22.28% -0.290 20.0 kg Cooler, +3.1 pp, -5 yr warranty

Found 73 panels of the same or similar size to this one, within ±10 mm. See them here Found 264 panels of the same or similar size to this one, within ±25 mm. See them here Found 455 panels of the same or similar size to this one, within ±50 mm. See them here Found 531 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
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.
Add to compare