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Silfab Brand review

SIL-330 HL

330 Wp PERC
ComparePV verdict

Warranty pick, no clear weak spot

Rank 12,064 of 14,005
Compare panels Datasheet PDF
Power (Wp)
330
Typical for its class
Efficiency (%)
19.40
Typical · median 19.00%
Density (Wp/m²)
194.1
Typical · median 190.0
Temp (%/°C)
-0.360
Typical · median -0.360
Weight (kg)
18.6
Strong · top 17%
Warranty (yrs)
30
Strong · top 15%

The Silfab SIL HL series is a premium line of mono-PERC photovoltaic modules engineered to combine high energy yield with a sleek, installation-friendly appearance. At the core of the series is half-cut cell technology, which reduces power losses caused by partial shading and elevated operating temperatures while also improving the panel's mechanical durability thanks to lower stress on the cells. The modules use monocrystalline PERC cells with five busbars, delivering a stable current-voltage curve even under low irradiance conditions. SIL HL panels are PID resistant in accordance with IEC 62804-1, making them a dependable choice for installations exposed to moisture and high system voltages. The distinctive sleek all-black design makes the series equally suited to residential rooftops and high-profile commercial projects, where aesthetics matter as much as performance. A lightweight yet rugged frame construction, tested against wind loads up to 4000 Pa and snow loads up to 5400 Pa, ensures broad racking compatibility and reliability in demanding climates. Manufacturing at automated facilities in North America, together with BAA/ARRA compliance, further reinforces the series' credibility among investors who expect documented quality and long-term warranty support.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.40% 19.00% Typical 12,735
Power density 194.1 190.0 Typical 12,721
Temperature coefficient -0.360 -0.360 Typical 12,345
Weight per kWp 56.4 60.0 Strong · top 17% 10,611
Performance warranty 30 yrs 25 yrs Strong · top 15% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Residential and commercial.

Strengths
30 year performance warranty

Top 15% of the PERC 300-350 W segment, against a median of 25 yrs.

56.4 kg per kWp

Top 17% of the PERC 300-350 W segment, against a median of 60.0.

Notes from the database
  • At 19.4% efficiency, this panel is on par with typical PERC 0-400W modules
  • At 194.1 W/m² power density, roof space requirements are typical for PERC 0-400W panels
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • Weight of 18.6 kg (1.9 kg below PERC 0-400W median of 20.5 kg) allows easier transport and roof mounting
  • #12735 for efficiency, #12345 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 330 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.40 % Typical Segment median 19.00%
Vmpp · Impp 33.70 V · 9.80 A Operating point at max power
Voc · Isc 40.10 V · 10.40 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1700×1000×38 mm · 1.70 m² of roof
Weight 18.6 kg Strong Strong · top 17%
Cells 120 · PERC Monocrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.360 of its segment
Coefficient Voc · Isc -0.280 · 0.064 %/°C
NOCT 46 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Strong top 15% · median 25 yrs
End-of-warranty output 82.6 % Equals 273 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
-0.360 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Silfab SIL-330 HL 330 W 19.40% -0.360 18.6 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.9 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.9 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg -50 W, cooler, +3.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +3.8 pp, -5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +3.8 pp, -5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg -45 W, lighter, +3.6 pp
GKA182M300W 300 W 23.00% - 16.2 kg -30 W, lighter, +3.6 pp
GKA210M320W 320 W 23.00% - 16.2 kg -10 W, lighter, +3.6 pp
GKA210M340W 340 W 23.00% - 16.2 kg +10 W, lighter, +3.6 pp
SIL-300 ML 300 W 17.60% -0.360 18.6 kg -30 W, -1.8 pp
SIL-310 ML 310 W 18.20% -0.360 18.6 kg -20 W, -1.2 pp
SIL-320 BL 320 W 18.84% -0.377 18.2 kg -10 W, hotter, -0.6 pp
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +110 W, cooler, +3.5 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +105 W, cooler, +3.3 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +3.2 pp, +10 yr warranty
JT430SYk(B) 430 W 22.40% -0.240 23.0 kg +100 W, cooler, +3.0 pp

Found 41 panels of the same or similar size to this one, within ±10 mm. See them here Found 161 panels of the same or similar size to this one, within ±25 mm. See them here Found 289 panels of the same or similar size to this one, within ±50 mm. See them here Found 812 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Silfab SIL HL series still available for purchase?
No, the SIL HL series has been discontinued by Silfab Solar. Panels may still be found through distributors as remaining stock, but the manufacturer no longer produces new batches of this model. Anyone planning to expand an existing SIL HL installation should check availability with local suppliers soon, as matching panels for already-installed arrays will become increasingly difficult over time.
What warranty comes with Silfab SIL HL panels?
SIL HL panels come with a 25-year product warranty and a 30-year linear power output warranty. This means the manufacturer covers both material and workmanship defects, as well as gradual power degradation over time. This warranty level is typical of Tier 1 manufacturers, adding credibility to the investment despite the series being discontinued.
What is half-cell technology in the SIL HL panels and what are its benefits?
Half-cell technology involves cutting standard silicon cells in half, reducing current losses and limiting the impact of partial shading, such as from chimneys or roof antennas. Smaller cells also experience lower mechanical stress, improving panel durability and reducing the risk of microcracks during transport, installation, and operation under variable weather conditions.
Are Silfab SIL HL panels resistant to PID degradation?
Yes, SIL HL modules are tested and certified for resistance to Potential Induced Degradation (PID) per IEC 62804-1. This means the panels maintain stable performance even under prolonged exposure to high system voltages and elevated humidity, which is important in large rooftop arrays and solar farms with many modules connected in series.
Can Silfab SIL HL panels withstand heavy snow and wind loads, such as in mountainous climates?
Yes, the SIL HL frame has been tested to withstand wind loads up to 4000 Pa and snow loads up to 5400 Pa, meeting the requirements of most demanding climates, including mountain regions and areas with heavy snowfall. This structural strength also ensures broad compatibility with common mounting systems on both sloped and flat roofs.
Do Silfab SIL HL panels meet BAA/ARRA requirements for U.S. publicly funded projects?
Yes, the SIL HL series is manufactured in Silfab's automated North American facilities and complies with Buy American Act (BAA) and American Recovery and Reinvestment Act (ARRA) requirements. This made the panels eligible for government and commercial projects in the U.S. requiring documented manufacturing origin, further boosting their credibility among institutional investors.
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