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Silfab Brand review

SIL-590 XM+

590 Wp N-type Bifacial 80%
ComparePV verdict

Space saver, no clear weak spot

Rank 1,554 of 14,005
Compare panels Datasheet PDF
Power (Wp)
590
Strong · top 15%
Efficiency (%)
22.80
Strong · top 20%
Density (Wp/m²)
228.6
Strong · top 12%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
28.5
Typical · median 29.5 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Silfab NTC Commercial series is a lineup of photovoltaic modules built on next-generation N-type cells, designed specifically for commercial installations - from warehouse and industrial rooftops to mid-size and utility-scale PV arrays. The TOPCon technology used here delivers noticeably better energy yield than conventional PERC cells, particularly under diffuse light and high operating temperatures, translating into real gains in energy production under typical Polish climate conditions. The half-cut cell design with a dual-row layout reduces power losses from partial shading and improves mechanical durability, while select variants also offer bifacial technology, capturing additional light reflected from the ground surface. The series stands out for its low degradation rate throughout the module's lifetime and consistent performance validated by independent lab testing, supporting a predictable LCOE for investors. It's a solid choice for installation companies and C&I project developers looking for modules that combine high power density, long-term reliability, and a favorable BoS cost balance per square meter of roof or ground space.

Ranking

260 panels in the segment N-type 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.80% 22.45% Strong · top 20% 2,714
Power density 228.6 224.5 Strong · top 12% 2,463
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 48.3 52.3 Typical 2,190
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Commercial and utility-scale.

Strengths
228.6 watts per square metre

Top 12% of the N-type 550-600 W segment, against a median of 224.5.

22.80% module efficiency

Top 20% of the N-type 550-600 W segment, against a median of 22.45%.

Notes from the database
  • At 22.8% efficiency, this panel is on par with typical N-type 550-600W modules
  • Power density of 228.6 W/m² packs 4.1 W/m² more into the same footprint vs N-type 550-600W median (224.5 W/m²)
  • Temperature coefficient of -0.29%/°C matches the N-type 550-600W median
  • At 28.5 kg, weight matches the N-type 550-600W median
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 590 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.80 % Strong Segment median 22.45%
Vmpp · Impp 44.79 V · 13.17 A Operating point at max power
Voc · Isc 52.50 V · 13.91 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1133×35 mm · 2.58 m² of roof
Weight 28.5 kg Typical Typical · median 29.5 kg
Cells 144 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 89.3 % Equals 523 W guaranteed
Degradation 2.00 → 0.32 % 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
-
With bifacial gain
-

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

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Silfab SIL-590 XM+ 590 W 22.80% -0.290 28.5 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg -30 W, lighter, +2.0 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +50 W, cooler, +2.0 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -35 W, lighter, +1.8 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +45 W, cooler, +1.8 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +40 W, heavier, +1.6 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg -40 W, lighter, +1.6 pp
SIL-570 XM+ BIFACIAL 570 W 22.10% -0.290 28.5 kg -20 W, -0.7 pp
SIL-580-XM+-BIFACIAL 580 W 22.40% -0.290 28.5 kg -10 W, -0.4 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +60 W, cooler, +2.4 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +55 W, cooler, +2.2 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is TOPCon technology in Silfab NTC Commercial panels and does it offer a real advantage over PERC?
TOPCon (Tunnel Oxide Passivated Contact) is the N-type cell technology used in the Silfab NTC Commercial series, which reduces surface recombination losses in the cell. In practice this means higher module efficiency, better performance under diffuse light, and a smaller power drop at high operating temperatures compared to classic PERC cells. For commercial installations, this translates into a higher real energy yield from the same roof or ground area.
How does the bifacial variant of the Silfab NTC Commercial series differ from a standard mono-facial panel?
Bifacial panels in the NTC Commercial series have an active rear side that captures light reflected off the ground, roof, or a bright surface beneath the mounting structure. With proper installation, such as light-colored gravel or membrane, this can add several percent of extra energy without increasing the installation footprint. The effect is more pronounced with elevated mounting and high-albedo surroundings than on sloped roofs with dark roofing material.
What warranty covers Silfab NTC Commercial panels and what exactly does it include?
The NTC Commercial series is covered by a 25-year product warranty and a 30-year linear power performance warranty, among the longest terms currently offered in the PV module market. The product warranty covers material and workmanship defects, while the power warranty guarantees a defined level of energy generation over time, helping C&I investors accurately forecast return on investment.
Do Silfab NTC Commercial panels perform well in low temperatures and low-light conditions typical of a Central European climate?
Yes, this is one of the strengths of the N-type cells used in this series. Compared to PERC cells, TOPCon technology maintains higher efficiency under diffuse light, common in fall and winter, and loses power more slowly as module operating temperature rises in summer. The result is more stable energy production throughout the year, not just under ideal irradiance conditions.
What type of installations is the Silfab NTC Commercial series suited for - would it work on a warehouse roof?
The NTC Commercial series was designed for commercial and industrial installations, including warehouse and manufacturing facility roofs as well as medium and large-scale PV farms. The half-cut cell construction with a double cell row increases mechanical durability and limits losses from partial shading, such as from rooftop ventilation units or technical equipment, which is common on industrial buildings.
Is Silfab a Tier 1 manufacturer and where are NTC Commercial series panels made?
Yes, Silfab Solar holds Tier 1 manufacturer status, indicating documented financial stability and bankability for financing institutions backing PV projects. The company is headquartered in Canada and is one of the few manufacturers with significant production scale in North America, meaning production outside the main Asian supply chain and alignment with support programs that favor supplier diversification.
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