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Selfa SV120M.2.5-500
Selfa Brand review

SV120M.2.5-500

500 Wp N-type Bifacial 2500%
ComparePV verdict

Space saver, weak in heat

Rank 4,883 of 14,129
Compare panels Datasheet PDF
Power (Wp)
500
Weak · bottom 8%
Efficiency (%)
23.10
Strong · top 21%
Density (Wp/m²)
231.0
Strong · top 21%
Temp (%/°C)
-0.300
Weak · bottom 11%
Weight (kg)
26.0
Typical · median 26.2 kg
Warranty (yrs)
30
Typical · median 30 yrs

The SV120M.2.5 series consists of bifacial monocrystalline modules in a full black design, built for installations that need to squeeze maximum energy yield out of every available square meter of roof or ground space. The use of N-Type half-cut cells combined with a multi busbar layout reduces resistive losses and improves current uniformity across the cell string, translating into measurably higher energy output compared to conventional P-Type panels. The dual-sided design allows the module to capture light reflected off the underlying surface, so under favorable mounting conditions the energy gain can reach well beyond that of a standard mono-facial panel. The series stands out thanks to its SELF-C nanocoating, which gives the surface self-cleaning properties, reducing maintenance needs and keeping output stable even when exposed to dust or grime. The construction is resistant to potential-induced degradation (PID free) and limits the risk of hot spot effects, while the uniform black finish suits rooftop installations with higher aesthetic expectations. The package is rounded out by a Class A fire rating and a long-term Polish manufacturer warranty, making the series a solid choice for both residential and commercial investors who value durability and operational safety.

Ranking

142 panels in the segment N-type 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.10% 22.55% Strong · top 21% 1,617
Power density 231.0 225.3 Strong · top 21% 1,678
Temperature coefficient -0.300 -0.290 Weak · bottom 11% 6,152
Weight per kWp 52.0 50.0 Typical 5,449
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 · 1 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates.

Strengths
231.0 watts per square metre

Top 21% of the N-type 500-550 W segment, against a median of 225.3.

23.10% module efficiency

Top 21% of the N-type 500-550 W segment, against a median of 22.55%.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 11% of the N-type 500-550 W segment, against a median of -0.290.

Notes from the database
  • Efficiency of 23.1% is 0.6pp above the N-type 500-550W median (22.6%)
  • At 231.0 W/m² power density, this panel generates 5.7 W/m² more per unit area than N-type 500-550W median (225.3 W/m²)
  • At -0.30%/°C, hot weather performance is typical for N-type 500-550W panels
  • #1617 for efficiency, #6152 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 500 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.10 % Strong Segment median 22.55%
Vmpp · Impp 35.92 V · 13.92 A Operating point at max power
Voc · Isc 43.50 V · 14.44 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1909×1134×30 mm · 2.16 m² of roof
Weight 26.0 kg Typical Typical · median 26.2 kg
Cells 120 · N-type Monocrystalline
Bifaciality 2500 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 11% of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°C
NOCT 41 °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 436 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 500 Wp appear here. The rest cover the whole series.

Current-Voltage (I-V) and Power-Voltage (P-V) curves at varying irradiance Current-Voltage (I-V) and Power-Voltage (P-V) curves at varying irradiance 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
-
With bifacial gain
-

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
-
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
Selfa SV120M.2.5-500 500 W 23.10% -0.300 26.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +1.9 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +1.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +1.6 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, lighter, +1.6 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +1.4 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +1.4 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +1.4 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +60 W, cooler, +1.7 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +55 W, cooler, +1.5 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +50 W, lighter, +1.3 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +40 W, cooler, +1.3 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +40 W, cooler, +1.3 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +45 W, cooler, +1.2 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +45 W, cooler, +1.1 pp

Found 751 panels of the same or similar size to this one, within ±10 mm. See them here Found 760 panels of the same or similar size to this one, within ±25 mm. See them here Found 917 panels of the same or similar size to this one, within ±50 mm. See them here Found 1508 panels of the same or similar size to this one, within ±100 mm. See them here

About the SV120M.2.5 series

6 answered

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

Is the Selfa SV120M.2.5 series still available for purchase?
The SV120M.2.5 series has been discontinued and is no longer offered as a current model in Selfa's lineup. Remaining units may still be available from distributors clearing warehouse stock, but once that inventory is sold out, no further production is planned. Anyone looking to expand an existing installation with matching modules should contact a distributor promptly to check remaining stock.
What's the difference between the bifacial SV120M.2.5 and a standard monofacial panel?
The SV120M.2.5 generates power from both sides of the module, capturing light reflected off the roof, ground, or a bright surface beneath it. Under favorable mounting conditions, such as elevated racking above light-colored gravel or a reflective roof membrane, this can boost energy yield by roughly ten to several tens of percent compared to a monofacial panel of the same rated power.
What does Selfa's SELF-C nanotechnology do, and does it really reduce the need for cleaning?
The SELF-C coating gives the front glass self-cleaning properties, so rainwater sheets off the surface and carries away dust and dirt. This helps the module maintain higher efficiency between heavy rain events and reduces how often manual cleaning is needed. It doesn't eliminate the need for periodic system inspections, but it meaningfully lowers the risk of output loss from dust or debris buildup.
What warranty comes with the Selfa SV120M.2.5 panels, and what does it cover?
The manufacturer provides a 20-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This means the panel is guaranteed to retain a specified level of power output throughout its service life, and in case of a manufacturing defect, repair or replacement is covered under Selfa's warranty terms.
Do the N-type half-cut cells in the SV120M.2.5 mean higher power and lower losses than P-type panels?
Yes. The N-type half-cut cells combined with multi-busbar design reduce current losses and improve cell operating uniformity, delivering up to 500 Wp of rated power and genuinely higher energy yield than comparable P-type panels. The half-cut design also improves partial-shading tolerance, since each cell is split into two smaller, independently functioning halves.
Is the SV120M.2.5 fire-safe, and is it resistant to PID degradation?
The module carries a Class A fire rating, the highest fire safety classification for roofing materials in Poland, which matters for building inspections and code compliance. The construction is also PID-free, meaning it resists potential-induced degradation, and the design minimizes the risk of hot-spot effects, supporting stable long-term performance throughout the panel's service life.
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