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Selfa Brand review

SV144M.5.3-550

550 Wp PERC
ComparePV verdict

Warranty pick, weak in heat

Rank 6,254 of 14,005
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.30
Typical · median 21.29%
Density (Wp/m²)
212.8
Typical · median 212.9
Temp (%/°C)
-0.360
Weak · bottom 5%
Weight (kg)
29.0
Typical · median 30.8 kg
Warranty (yrs)
30
Strong · top 25%

The SV144M.5.3 series consists of monocrystalline PREMIUM modules engineered to perform reliably for decades, not just look good on a spec sheet. High efficiency and resistance to partial shading come from half-cut technology combined with PERC cells, which limits energy losses even under less favorable irradiance conditions. The multi busbar structure improves fault-free operation and helps maintain stable power output over years of use. The panels also stand out with a self-cleaning SELF-C nanocoating that reduces dirt buildup on the glass surface, resulting in less need for cleaning and more consistent energy yields, especially in hard-to-access installations. Snow load resistance up to 5400 Pa and PID-free protection make this series a solid choice for both residential rooftops and larger commercial installations in demanding climates. The offering is rounded out by a 30-year Polish power warranty backed by EU-based service, giving investors confidence in long-term returns without relying on distant, overseas manufacturers.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 21.29% Typical 8,519
Power density 212.8 212.9 Typical 8,643
Temperature coefficient -0.360 -0.350 Weak · bottom 5% 12,345
Weight per kWp 52.7 52.7 Typical 6,373
Performance warranty 30 yrs 27 yrs Strong · top 25% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Residential, commercial, shaded-installations and cold-climate.

Not ideal for

Hot climates.

Strengths
30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Watch-outs
-0.360 %/°C temperature coefficient

Bottom 5% of the PERC 550-600 W segment, against a median of -0.350. Ranked 12,345th in the whole database.

Notes from the database
  • Efficiency of 21.3% matches the PERC 550-600W median
  • Power density of 212.8 W/m² matches the PERC 550-600W median
  • Temperature coefficient of -0.36%/°C matches the PERC 550-600W median
  • 29.0 kg weight - 1.8 kg lighter than PERC 550-600W median (30.8 kg), reducing installation effort
  • In the top 61% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Typical Segment median 21.29%
Vmpp · Impp 41.60 V · 13.23 A Operating point at max power
Voc · Isc 49.80 V · 13.99 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 29.0 kg Typical Typical · median 30.8 kg
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.360 %/°C Weak bottom 5% of its segment
Coefficient Voc · Isc -0.300 · 0.060 %/°C
NOCT 41 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 90.0 % Equals 495 W guaranteed
Degradation 3.00 → 0.24 % 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 550 Wp appear here. The rest cover the whole series.

Current-Voltage Characteristic 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
-0.360 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Selfa SV144M.5.3-550 550 W 21.30% -0.360 29.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.4 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.3 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.2 pp
SV144M.5.3-540 540 W 20.90% -0.360 29.0 kg -10 W, -0.4 pp
SV144M.5.3-545 545 W 21.10% -0.360 29.0 kg Very close match
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +95 W, cooler, +3.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +90 W, cooler, +3.5 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +85 W, cooler, +3.3 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +80 W, cooler, +3.1 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 2542 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of Selfa SV144M.5.3 panels?
The SV144M.5.3 series reaches a maximum power output of up to 550 Wp. This is achieved by combining half-cut technology with PERC cells and a multi busbar structure, which together reduce energy losses and deliver high efficiency even under partial sunlight. As a result, fewer modules are needed to cover a typical residential installation compared to lower-power panels.
What warranty comes with Selfa SV144M.5.3 panels?
The manufacturer provides a 15-year product warranty and a 30-year power performance warranty. The warranty is backed by European service, and since Selfa is a Polish manufacturer, customers don't need to deal with distant overseas representatives for claims. This is a meaningful advantage for investors planning decades of operation who value responsive after-sales support.
What are half-cut and PERC cell technologies in the SV144M.5.3 series, and are they worth it?
Half-cut technology splits standard cells in half, reducing current losses and improving resistance to partial shading, for example from a chimney or antenna. PERC cells further improve light absorption thanks to a rear reflective layer. Combined in the SV144M.5.3 series, these technologies deliver higher efficiency and more stable energy yields under difficult sunlight conditions, which shortens the payback period.
Can Selfa SV144M.5.3 panels handle heavy snow loads?
Yes, the SV144M.5.3 series withstands snow loads of up to 5400 Pa, suitable for most Polish climate conditions, including mountainous and foothill regions with heavy winter snowfall. The reinforced frame and tempered glass construction ensure safe operation on both residential roofs and larger commercial installations exposed to elevated mechanical loads.
What does the SELF-C self-cleaning coating do, and do the panels still need washing?
The SELF-C coating reduces the buildup of dust, pollen, and other contaminants on the glass surface, allowing rain to wash away most deposits without user intervention. It doesn't eliminate the need for cleaning entirely, especially for stubborn dirt, but it noticeably reduces cleaning frequency and helps maintain more stable energy yields, particularly in hard-to-access installations such as tall rooftops.
Is Selfa a Polish manufacturer, and where are SV144M.5.3 panels serviced?
Yes, Selfa is a Polish manufacturer with a long-standing presence on the European market, and SV144M.5.3 panels are covered by European warranty service. The company is not listed as a tier 1 manufacturer, but local production and proximity of service make warranty claims easier compared to Asian brands, an important factor for investors planning 15 to 30 years of operation.
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