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MY Solar MYM6144-445

445 Wp PERC
ComparePV verdict

Middle of its segment, weak in heat

Rank 11,910 of 14,129
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 5%
Efficiency (%)
20.14
Weak · bottom 18%
Density (Wp/m²)
201.4
Weak · bottom 17%
Temp (%/°C)
-0.390
Weak · bottom 1%
Weight (kg)
25.6
Weak · 3.6 kg above median
Warranty (yrs)
25
Typical · median 25 yrs

MY Solar M6 series photovoltaic panels use advanced monocrystalline PERC cell technology, which translates into high solar energy conversion efficiency even in less favorable weather conditions. Thanks to the use of a half-cut design, meaning cells cut in half, these modules show significantly lower internal losses and higher resistance to point shading, which is crucial for the stable operation of installations on the roofs of residential buildings. This series is distinguished by its precision-engineered frame and solid sealing, which guarantees exceptional mechanical strength against snow and wind loads, ensuring safety of use for decades. MY Solar M6 is a solution dedicated to investors seeking an optimal balance between modern technology and a quick return on investment. Compared to competing solutions, this series manages heat dissipation better, which directly affects the minimized temperature coefficient and longer lifespan of the entire system. It is an ideal choice for both home micro-installations and larger commercial systems, where the priority remains maximizing yields from the available roof area while maintaining full operational reliability in the Polish climate. The use of proven M6 silicon wafer formats ensures full compatibility with most mounting systems available on the market.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.14% 20.60% Weak · bottom 18% 12,170
Power density 201.4 206.2 Weak · bottom 17% 12,146
Temperature coefficient -0.390 -0.350 Weak · bottom 1% 13,659
Weight per kWp 57.5 53.0 Weak · bottom 22% 11,359
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 6 caution
Best for

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

Not ideal for

Hot climates, roofs where every square metre has to count and tight roof space.

Watch-outs
-0.390 %/°C temperature coefficient

Bottom 1% of the PERC 400-450 W segment, against a median of -0.350. Ranked 13,659th in the whole database.

201.4 watts per square metre

Bottom 17% of the PERC 400-450 W segment, against a median of 206.2.

20.14% module efficiency

Bottom 18% of the PERC 400-450 W segment, against a median of 20.60%.

What owners get
Wide power range and variant selection

The M6 series spans 11 variants from 195 Wp to 455 Wp, allowing installers to match a module to anything from small residential microinstallations to larger commercial systems within a single product line.

Proven half-cut PERC technology

Half-cut cells reduce resistive losses and improve shade tolerance compared to full-size PERC cells, resulting in more stable energy yield in partially shaded rooftop environments.

25-year linear power warranty

The manufacturer offers an industry-standard 25-year power warranty, giving investors predictable production output over the typical amortization horizon of a PV installation.

M6 wafer format compatibility

The use of the widely adopted M6 silicon wafer format ensures dimensional compatibility with most mounting systems on the market, simplifying design and speeding up installation.

Robust frame and sealing construction

Precise frame manufacturing and sealing deliver strong mechanical resistance to snow and wind loads, which is significant for the typical winter roof loads seen in the Polish climate.

Trade-offs
Lower efficiency than comparable series

The maximum efficiency of 20.6% trails comparable 455 Wp modules from peers such as LEDVANCE M435~455N54LB-SF-F7 (22.77%) and Sunlike SKT420~455M10-108D6 (22.8%), meaning lower energy yield for the same roof area.

Manufacturer not on the BNEF Tier 1 list

MY Solar does not hold BloombergNEF Tier 1 bankable status, which can make it harder to secure bank or leasing financing for larger commercial projects that require such confirmation.

PERC technology lags newer cell architectures

Comparable peer series exceed 22.5% efficiency using newer cell technologies, while PERC is approaching its theoretical efficiency ceiling (~24%), limiting further performance gains for this series relative to the competition.

Notes from the database
  • At 20.1% efficiency, this panel is on par with typical PERC 400-450W modules
  • At 201.4 W/m², this panel generates 4.8 W/m² less per unit area than PERC 400-450W median (206.2 W/m²)
  • Temperature coefficient of -0.39%/°C is 0.04pp worse than PERC 400-450W median (-0.35%/°C) - higher losses in summer heat
  • At 25.6 kg (3.6 kg above PERC 400-450W median of 22.0 kg), requires checking roof load capacity
  • Ranked #12170 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.14 % Weak Segment median 20.60%
Vmpp · Impp 41.75 V · 10.66 A Operating point at max power
Voc · Isc 49.55 V · 11.17 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2108×1048×35 mm · 2.21 m² of roof
Weight 25.6 kg Weak Weak · 3.6 kg above median
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.390 %/°C Weak bottom 1% of its segment
Coefficient Voc · Isc -0.300 · 0.060 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 10 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
Degradation 3.00 % First year

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
-0.390 %/°C against a segment median of -0.350
-

Alternatives

All MY Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
MY Solar MYM6144-445 445 W 20.14% -0.390 25.6 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +4.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, +4.4 pp, +5 yr warranty
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg Cooler, +4.4 pp, +5 yr warranty
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg Cooler, lighter, +4.2 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg Cooler, +4.2 pp, +5 yr warranty
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +4.2 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg Cooler, +4.2 pp, +5 yr warranty
MYM6144-430 430 W 19.46% -0.390 25.6 kg -15 W, -0.7 pp
MYM6144-435 435 W 19.69% -0.390 25.6 kg -10 W, -0.4 pp
MYM6144-440 440 W 19.92% -0.390 25.6 kg -0.2 pp
MYM6144-450 450 W 20.37% -0.390 25.6 kg +0.2 pp
MYM6144-455 455 W 20.60% -0.390 25.6 kg +10 W, +0.5 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +145 W, cooler, +3.7 pp
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +140 W, cooler, +3.5 pp
BGO 580 580 W 23.50% -0.290 26.0 kg +135 W, cooler, +3.4 pp
GKA120N-PRO-580W 580 W 23.42% -0.300 26.7 kg +135 W, cooler, +3.3 pp

Found 115 panels of the same or similar size to this one, within ±10 mm. See them here Found 345 panels of the same or similar size to this one, within ±25 mm. See them here Found 345 panels of the same or similar size to this one, within ±50 mm. See them here Found 1041 panels of the same or similar size to this one, within ±100 mm. See them here

About the M6 series series

6 answered

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

What warranty comes with the MY Solar M6 series panels?
The M6 series includes a 12-year product warranty covering material and manufacturing defects, plus a 25-year linear power output warranty. This means the manufacturer guarantees a defined minimum power yield for a full quarter century. It is a standard warranty scope for mid-range PERC modules and is sufficient for a typical residential prosumer installation.
What does half-cut PERC technology in the MY Solar M6 mean, and is it worth the price?
Half-cut technology splits each PERC cell into two halves, reducing internal resistance and thermal losses. In real-world use this translates to higher output under partial shading - from a chimney or dormer, for example - and better performance on hot days. For any roof with obstructions this is a measurable energy gain, not just a marketing claim.
Will MY Solar M6 455 Wp panels perform well in Poland's frequently overcast climate?
Yes. The monocrystalline PERC cells used in the M6 series maintain solid efficiency under diffuse light, which is typical of Polish autumn and winter conditions. The manufacturer also highlights a minimized temperature coefficient, meaning reduced power losses during summer heat waves. The M6 series is explicitly positioned as a solution adapted to variable weather conditions in Central Europe.
Are MY Solar M6 modules compatible with standard racking systems available in Poland?
Yes. The M6 series is built around the widely adopted M6 silicon wafer format (166 mm), one of the most common cell sizes on the market. This ensures compatibility with the majority of aluminum rail systems and mid-clamps offered by Polish mounting hardware distributors. Always confirm frame dimensions with your racking supplier before ordering.
How many MY Solar M6 455 Wp panels do I need for a 10 kWp system?
At 455 Wp per panel you need 22 modules to reach approximately 10.01 kWp of total installed capacity. Those 22 panels require roughly 40-44 m² of roof area, depending on the racking system and row spacing used. This is a convenient system size for a home of 150-200 m² running a heat pump.
Is MY Solar a Tier 1 manufacturer, and is it worth buying their panels?
MY Solar is not currently listed as a Tier 1 manufacturer by Bloomberg NEF, which means lower bankability recognition compared to top-tier brands. This does not necessarily reflect product quality - the M6 series uses proven PERC cells and offers solid warranties. However, make sure your installer or distributor can handle warranty claims locally in Poland, since after-sales support is critical for less widely known brands.
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