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Selfa SV108M.3.4-440
Selfa Brand review

SV108M.3.4-440

440 Wp N-type
ComparePV verdict

Middle of its segment, weak in heat

Rank 8,315 of 14,129
Compare panels Datasheet PDF
Power (Wp)
440
Strong · top 23%
Efficiency (%)
22.00
Typical · median 21.95%
Density (Wp/m²)
220.2
Typical · median 218.4
Temp (%/°C)
-0.300
Weak · bottom 25%
Weight (kg)
22.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The SV108M.3.4 series consists of photovoltaic modules built on the latest TOPCon N-Type technology, designed for investors who expect stable energy output even under demanding weather conditions. Half-cut cells arranged in a multi-busbar layout reduce resistive losses and improve tolerance to partial shading, allowing the panel to maintain performance even when a roof receives uneven sunlight. What sets this series apart is the patented SELF-C self-cleaning coating, which limits the accumulation of dust, pollen, and other contaminants on the glass surface, resulting in less frequent maintenance and more consistent yields over time. The module's construction has been reinforced for increased mechanical durability, withstanding snow and wind loads up to 8000Pa as well as hailstones up to 55mm in diameter, making it a solid choice for roofs exposed to harsh weather, including installations in northern and central Poland. A black frame version is also available for projects where facade aesthetics matter. The SV108M.3.4 series is well suited both for installers handling residential projects and for companies seeking a reliable component for larger commercial installations, where long-term durability and a predictable LCOE are essential.

Ranking

322 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.00% 21.95% Typical 6,580
Power density 220.2 218.4 Typical 6,391
Temperature coefficient -0.300 -0.290 Weak · bottom 25% 6,152
Weight per kWp 50.0 51.2 Typical 3,329
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 25% of the N-type 400-450 W segment, against a median of -0.290.

Notes from the database
  • Efficiency of 22.0% matches the N-type 400-450W median
  • At 220.2 W/m² power density, roof space requirements are typical for N-type 400-450W panels
  • At -0.30%/°C, hot weather performance is typical for N-type 400-450W panels
  • Ranked #6580 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 440 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.00 % Typical Segment median 21.95%
Vmpp · Impp 32.84 V · 13.40 A Operating point at max power
Voc · Isc 39.40 V · 13.95 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 22.0 kg Typical Typical · median 22.0 kg
Cells 108 · N-type Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 25% of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 20 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.0 % Equals 383 W guaranteed
Degradation 1.00 → 0.41 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Selfa in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 440 Wp appear here. The rest cover the whole series.

LINIOWA GWARANCJA NA MOC (Linear Power Warranty) LINIOWA GWARANCJA NA MOC (Linear Power Warranty) Whole series I-V and P-V Curves (Current-Voltage Characteristic) I-V and P-V Curves (Current-Voltage Characteristic) Whole series

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
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Selfa SV108M.3.4-440 440 W 22.00% -0.300 22.0 kg You are here
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +50 W, cooler, +2.5 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +50 W, cooler, +2.5 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +45 W, cooler, +2.3 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +45 W, cooler, +2.3 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +45 W, cooler, +2.3 pp
GK-5-54HG-485M 485 W 24.30% -0.260 21.0 kg +45 W, cooler, +2.3 pp
ZEUS 3.0+ 108 485WP 485 W 24.30% -0.260 24.2 kg +45 W, cooler, +2.3 pp
SV108M.3.4-430 430 W 21.50% -0.300 22.0 kg -10 W, -0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +70 W, cooler, +3.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +55 W, cooler, +2.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +65 W, cooler, +2.7 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +65 W, cooler, +2.7 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +60 W, cooler, +2.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +60 W, cooler, +2.5 pp

Found 1402 panels of the same or similar size to this one, within ±10 mm. See them here Found 1432 panels of the same or similar size to this one, within ±25 mm. See them here Found 3651 panels of the same or similar size to this one, within ±50 mm. See them here Found 3999 panels of the same or similar size to this one, within ±100 mm. See them here

About the SV108M.3.4 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is TOPCon N-Type technology used in Selfa SV108M.3.4 panels, and how does it differ from standard PERC panels?
TOPCon N-Type is a newer generation of silicon cells that, compared to the popular PERC technology, offers higher conversion efficiency (around 21.5% for the SV108M.3.4), lower power degradation over time, and better performance at high temperatures. Combined with multi-busbar technology and half-cut cells, it reduces resistive losses and improves yield stability, resulting in higher energy production over the system's lifetime.
Do Selfa SV108M.3.4 panels with the SELF-C coating need regular cleaning?
Not under typical conditions. The patented SELF-C self-cleaning coating reduces the buildup of dust, pollen, and other contaminants on the glass, so most of it is washed away by rainfall and UV radiation alone. In practice, this means less frequent system servicing and more stable year-round energy yields, especially on roofs that are hard to access.
Can Selfa SV108M.3.4 panels withstand heavy wind, snow loads, and hail, e.g. in northern Poland?
Yes, the module's construction has been reinforced for increased mechanical resistance, withstanding snow and wind loads up to 8000Pa as well as hail impacts up to 55mm in diameter. This makes the SV108M.3.4 a solid choice for roofs exposed to harsh weather conditions, including installations in northern and central Poland where snow loads can be significant.
What warranty comes with Selfa SV108M.3.4 solar panels?
The manufacturer provides a 20-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means the panel maintains a defined minimum energy output level for three decades as specified in the datasheet, giving investors predictable yields and a favorable impact on long-term LCOE calculations.
Is the Selfa SV108M.3.4 a bifacial panel that generates power from both sides?
No, the SV108M.3.4 series is a monofacial module, optimized for standard mounting on pitched and flat roofs where the rear side has no access to reflected light. If you're planning a ground-mounted installation or one on a bright, reflective surface, a bifacial model from the manufacturer's lineup may be worth considering, but for typical rooftop installations the SV108M.3.4 is a fully adequate solution.
Who is the Selfa SV108M.3.4 series designed for, and is a black frame version available?
The SV108M.3.4 suits both installers handling residential projects and companies looking for a reliable component for larger commercial installations, where durability and predictable energy cost matter most. A black frame version is also available, well suited to projects where facade aesthetics are a priority, such as roofs visible from street level.
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