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Philadelphia Solar Brand review

PS-M144(HC)-455W

455 Wp PERC
ComparePV verdict

Strong in heat, no clear weak spot

Rank 10,936 of 14,129
Compare panels Datasheet PDF
Power (Wp)
455
Typical for its class
Efficiency (%)
21.00
Typical · median 20.82%
Density (Wp/m²)
209.3
Typical · median 208.5
Temp (%/°C)
-0.300
Strong · top 2%
Weight (kg)
24.0
Typical · median 24.5 kg
Warranty (yrs)
25
Typical · median 25 yrs

The PS-M144(HC)-xxxW series comprises monocrystalline solar panels built with half-cut cell technology (144 cut PERC cells arranged in a 72x2 layout) combined with multi-busbar (MBB) interconnection, which together reduce internal resistance losses and improve current handling even when the module is not fully illuminated. By splitting cells in half, the panel handles partial shading more gracefully - a shaded half-cell causes a smaller power drop across the string compared to conventional full-size cell modules, translating into real energy gains in urban or industrial rooftop settings. The half-cut design also delivers resistance to microcracks superior to 5-busbar panels, along with more favorable temperature coefficients, which matters for installations on roofs exposed to intense sun. The series is backed by a 25-year linear power warranty with an annual degradation rate of only -0.6%, making it an appealing choice both for investors in industrial-scale installations and for homeowners seeking predictable long-term returns. The panels are manufactured on fully robotic production lines, ensuring consistent quality and stable parameters across large batches, an important factor for large EPC projects.

Ranking

452 panels in the segment PERC 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.00% 20.82% Typical 9,828
Power density 209.3 208.5 Typical 10,045
Temperature coefficient -0.300 -0.350 Strong · top 2% 6,152
Weight per kWp 52.7 53.1 Typical 6,455
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 · 3 caution
Best for

Residential, commercial and shaded-installations.

Strengths
-0.300 %/°C temperature coefficient

Top 2% of the PERC 450-500 W segment, against a median of -0.350. Ranked 6,152nd in the whole database.

What owners get
Half-cut PERC + MBB reduces losses

Splitting the 144 PERC cells into halves (72x2) combined with multi-busbar (MBB) interconnection reduces resistive losses and improves partial-shading tolerance - a single shaded half-cell causes a smaller string power drop than in conventional 5-busbar modules, which matters in urban or industrial shading conditions.

Low temperature coefficient of -0.3%/°C

A power temperature coefficient of -0.3%/°C (confirmed in the manufacturer datasheet) means a smaller output drop at high operating temperatures, which is relevant for heavily sun-exposed roofs, e.g. during summer months in Poland.

BNEF Tier-1, manufacturer since 2007

Philadelphia Solar is listed on the BNEF Tier-1 bankability rankings (confirmed in Q1/Q2 2026 lists) and has operated since 2007. Fully robotized production lines ensure consistent batch quality, which supports financing for large EPC installations.

25-year power warranty, -0.6%/year

A 25-year linear power warranty with an annual degradation of only -0.6% is a solid, proven result for PERC technology, offering a predictable degradation profile comparable to other tier-1 manufacturers.

Trade-offs
20-21% efficiency below peer group

Module efficiency (20-21%) is noticeably lower than comparable products in the same power class: LEDVANCE 22.77%, Sunlike Solar 22.8%, Solitek 22.56%. The ~1.5-2 pp gap stems from using older PERC technology instead of N-type TOPCon, meaning more roof area is needed for the same power output.

Shorter product warranty (12 years)

The 12-year product warranty is shorter than the 2026 market standard for newer N-type TOPCon panels - e.g. Canadian Solar TOPHiKu6 offers 25 years, and Q CELLS Q.PEAK DUO/Q.TRON provide 25-year product coverage. This may reduce the series' competitiveness in EPC tenders requiring longer service coverage.

No bifacial variant available

The series is mono-facial only, while some peer comparables (Sunlike Solar SKT M10-108D6, likely LEDVANCE N54LB) are glass-glass bifacial modules offering an additional rear-side energy gain of several to over ten percent that this series cannot deliver.

Notes from the database
  • At 21.0% efficiency, this panel is on par with typical PERC 450-500W modules
  • Power density of 209.3 W/m² matches the PERC 450-500W median
  • At -0.30%/°C (vs median -0.35%/°C), loses ~2% less power in hot conditions
  • Ranked #9828 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 455 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.00 % Typical Segment median 20.82%
Vmpp · Impp 41.94 V · 10.86 A Operating point at max power
Voc · Isc 50.00 V · 11.39 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2094×1038×35 mm · 2.17 m² of roof
Weight 24.0 kg Typical Typical · median 24.5 kg
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.300 %/°C Strong top 2% of its segment
Coefficient Voc · Isc -0.260 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 83.1 % Equals 364 W guaranteed
Degradation 2.50 → 0.60 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Philadelphia Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 455 Wp appear here. The rest cover the whole series.

Current-Voltage (I-V) Curves at Different Irradiance Levels, Cell temp = 25°C Current-Voltage (I-V) Curves at Different Irradiance Levels, Cell temp = 25°C 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 -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Philadelphia Solar PS-M144(HC)-455W 455 W 21.00% -0.300 24.0 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +40 W, +3.8 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +50 W, cooler, +3.7 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +50 W, +3.7 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, +3.5 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, +3.5 pp, +5 yr warranty
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +45 W, +3.5 pp, +5 yr warranty
PS-M144(HC)-435W 435 W 20.00% -0.300 24.0 kg -20 W, -1.0 pp
PS-M144(HC)-440W 440 W 20.20% -0.300 24.0 kg -15 W, -0.8 pp
PS-M144(HC)-445W 445 W 20.50% -0.300 24.0 kg -10 W, -0.5 pp
PS-M144(HC)-450W 450 W 20.70% -0.300 24.0 kg -0.3 pp
GKA120N-PRO-590W 590 W 23.82% -0.300 26.7 kg +135 W, +2.8 pp, +5 yr warranty
GKA120N-PRO-585W 585 W 23.62% -0.300 26.7 kg +130 W, +2.6 pp, +5 yr warranty
BGO 580 580 W 23.50% -0.290 26.0 kg +125 W, +2.5 pp, +5 yr warranty
GKA120N-PRO-580W 580 W 23.42% -0.300 26.7 kg +125 W, +2.4 pp, +5 yr warranty

Found 234 panels of the same or similar size to this one, within ±10 mm. See them here Found 325 panels of the same or similar size to this one, within ±25 mm. See them here Found 352 panels of the same or similar size to this one, within ±50 mm. See them here Found 1172 panels of the same or similar size to this one, within ±100 mm. See them here

About the PS-M144(HC)-xxxW series

6 answered

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

What is the maximum power output of the Philadelphia Solar PS-M144(HC)-xxxW panel?
The top model in the PS-M144(HC)-xxxW series reaches up to 455 Wp of maximum power. This high output is achieved through half-cut PERC technology with 144 cut cells and multi busbar (MBB) interconnection, which together reduce internal resistance losses and improve current output even under partial module illumination.
What warranty comes with the Philadelphia Solar PS-M144(HC)-xxxW panels?
The manufacturer provides a 12-year product warranty along with a 25-year linear power warranty, limiting annual performance degradation to just -0.6%. These are among the more favorable terms on the market, making the series a solid choice for both residential installations and larger commercial projects seeking predictable return on investment.
Do half-cut PS-M144(HC) panels handle partial shading better than standard modules?
Yes. Splitting the 144 PERC cells into halves in a 72x2 configuration means a single shaded cell causes a smaller power drop across the whole string compared to classic full-size panels. This helps the array perform better under partial shading from chimneys, antennas, or nearby buildings, resulting in higher energy yield in urban or industrial rooftop environments.
Is Philadelphia Solar a tier 1 manufacturer, and where is it based?
Yes, Philadelphia Solar holds tier 1 manufacturer status, confirming financial stability and bankability important for project financing. The company is headquartered in Jordan, and the PS-M144(HC)-xxxW series is produced on fully robotic manufacturing lines, ensuring consistent quality and stable parameters across the entire delivery batch.
How does half-cut technology with MBB differ from standard 5-busbar panels?
Cutting cells in half lowers the current flowing through each cell, reducing internal resistance losses and the risk of overheating. Combined with multi busbar (MBB) interconnection, the PS-M144(HC) series achieves better microcrack resistance and more favorable temperature coefficients than 5-busbar modules, which matters for installations on heavily sun-exposed roofs.
Are the PS-M144(HC)-xxxW panels bifacial?
No, the PS-M144(HC)-xxxW series consists of monofacial panels built on monocrystalline PERC cells. Despite lacking bifacial technology, high efficiency is achieved through the half-cut design and MBB interconnection, which minimize current losses and improve performance under uneven illumination.
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