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Philadelphia Solar Brand review

PS-M144(HCBF)-GG-550W

550 Wp PERC Bifacial 65%
ComparePV verdict

Warranty pick, heavy for its output

Rank 7,059 of 14,129
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.29
Typical · median 21.29%
Density (Wp/m²)
212.9
Typical · median 212.9
Temp (%/°C)
-0.349
Typical · median -0.350
Weight (kg)
32.5
Weak · 1.7 kg above median
Warranty (yrs)
30
Strong · top 25%

The PHENex PS-M144(HCBF)-GG series consists of double-glass bifacial modules engineered to maximize energy yield in commercial and industrial installations. The use of 144 half-cut monocrystalline PERC cells reduces resistive losses and improves module performance under partial shading, resulting in more stable energy production in challenging irradiance conditions. Thanks to bifacial technology, the rear side of the module captures light reflected from the ground, which is especially beneficial on gravel rooftops, sandy terrain, snow-covered areas, or sites near water, where the additional energy gain can be significant. The use of a double tempered glass construction instead of a rear backsheet increases the panel's mechanical and chemical resistance, extends its lifespan, and limits LID and PID degradation. A sturdy, anodized aluminum frame ensures high resistance to wind and snow loads, making the series suitable for both large-scale solar farms and demanding rooftop installations. The PHENex series is a solution for investors seeking long-term reliability and a lower cost of energy per installed watt, backed by an extended product and power warranty.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.29% 21.29% Typical 8,776
Power density 212.9 212.9 Typical 8,563
Temperature coefficient -0.349 -0.350 Typical 10,474
Weight per kWp 59.1 52.7 Weak · bottom 15% 12,099
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

6 positive · 3 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Weight-limited structures.

Strengths
30 year performance warranty

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

Watch-outs
59.1 kg per kWp

Bottom 15% of the PERC 550-600 W segment, against a median of 52.7.

What owners get
Bifacial gain of 7-25%

The double-glass construction with a rear side active for light capture delivers, per manufacturer data, an additional 7-25% energy yield above the 550 Wp front-side rated power - particularly valuable on gravel roofs, ground-mount farms with high-albedo surfaces, or in snowy environments.

Efficiency on par with segment leaders

Efficiency up to 21.29% puts the series in the same league as peer comparables in this power class: IBC Solar 182M (21.28%), Goldi Solar GS10-B144-TF (21.30%), and Jetion JT SGh (21.30%) - differences are within measurement tolerance.

Dual glass instead of rear backsheet

Tempered glass on both sides instead of a standard backsheet reduces LID and PID degradation and increases mechanical and chemical resistance, resulting in longer, more stable service life, especially in demanding environmental conditions.

30-year power warranty

The manufacturer guarantees linear power degradation down to 83.0% output at year 30, backed by a 12-year product warranty - parameters comparable to leading tier-1 manufacturers' offerings in the bifacial PERC segment.

Established Tier-1 manufacturer standing

Philadelphia Solar has operated since 2007 and appears on BNEF's Tier-1 manufacturer list, indicating documented supply to commercially bank-financed projects - a key factor in reducing risk for institutional investors.

Trade-offs
Production discontinued (2023)

The PHENex PS-M144(HCBF)-GG series was discontinued in 2023 (launched 2021), meaning limited availability of matching spare units and potential difficulties with warranty service or matching panels when extending an existing installation.

PERC technology instead of TOPCon/HJT

PERC cells in this series reach an efficiency ceiling of around 21.3%, while newer N-type TOPCon and HJT modules currently on the market offer higher efficiencies (23%+) and typically lower annual degradation rates - making this series an older technology generation compared to current tier-1 offerings.

Notes from the database
  • At 21.3% efficiency, this panel is on par with typical PERC 550-600W modules
  • Power density of 212.9 W/m² matches the PERC 550-600W median
  • At -0.35%/°C, hot weather performance is typical for PERC 550-600W panels
  • At 32.5 kg, this panel is 1.7 kg heavier than the PERC 550-600W median (30.8 kg) - more demanding for installation crews
  • Bifacial design (65% factor) captures reflected light - adds 3-10% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.29 % Typical Segment median 21.29%
Vmpp · Impp 42.44 V · 12.96 A Operating point at max power
Voc · Isc 50.63 V · 13.83 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×30 mm · 2.58 m² of roof
Weight 32.5 kg Weak Weak · 1.7 kg above median
Cells 144 · PERC Monocrystalline
Bifaciality 65 % Rear output as a share of front
Coefficient Pmax -0.349 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.267 · 0.049 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 83.5 % Equals 459 W guaranteed
Degradation 2.00 → 0.50 % 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 550 Wp appear here. The rest cover the whole series.

Linear Power Output Warranty Linear Power Output Warranty Whole series Current-Voltage Curve (at various cell temperatures) Current-Voltage Curve (at various cell temperatures) 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
-0.349 %/°C against a segment median of -0.350
-
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
Philadelphia Solar PS-M144(HCBF)-GG-550W 550 W 21.29% -0.349 32.5 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
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 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
PS-M144(HCBF)-GG-535W 535 W 20.71% -0.349 32.5 kg -15 W, -0.6 pp
PS-M144(HCBF)-GG-540W 540 W 20.90% -0.349 32.5 kg -10 W, -0.4 pp
PS-M144(HCBF)-540W 540 W 20.90% -0.350 29.0 kg Lighter, -0.4 pp, -5 yr warranty
PS-M144(HCBF)-GG-545W 545 W 21.10% -0.349 32.5 kg Very close match
PS-M144(HCBF)-545W 545 W 21.10% -0.350 29.0 kg Lighter, -5 yr warranty
PS-M144(HCBF)-550W 550 W 21.30% -0.350 29.0 kg Lighter, -5 yr warranty
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

Found 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2548 panels of the same or similar size to this one, within ±100 mm. See them here

About the PHENex PS-M144(HCBF)-GG series

6 answered

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

Is the PHENex PS-M144(HCBF)-GG series still available for purchase?
The PHENex PS-M144(HCBF)-GG series has been discontinued by Philadelphia Solar and is no longer in active production. Units may still be available through distributors as remaining stock, but for larger installations it's best to confirm current availability with your supplier and consider the manufacturer's current bifacial models as an alternative.
What does bifacial technology add to the PHENex PS-M144(HCBF)-GG panels?
Thanks to the dual tempered glass construction replacing the standard backsheet, the rear side of the module captures light reflected off the ground. On gravel roofs, light-colored surfaces, snow, or near water, this can add several to over ten percent extra yield above the 550 Wp rated power, improving payback for commercial and industrial installations.
What warranty comes with the PHENex PS-M144(HCBF)-GG panels?
Philadelphia Solar provides a 12-year product warranty and a 30-year linear power output warranty. The manufacturer holds Tier 1 status, which adds confidence in warranty support, though given the series' discontinued status it's worth confirming service terms directly with your distributor before purchase.
How do PERC half-cut cells differ from standard full-size cells?
The module uses 144 monocrystalline PERC half-cut cells, essentially standard cells cut in half. This design reduces resistive losses and limits power drop under partial shading, such as from leaves or chimneys, resulting in more stable energy production compared to panels with full-size cells.
Are the PHENex PS-M144(HCBF)-GG panels suitable for large-scale solar farms?
Yes, the series was designed for commercial and industrial installations. Power output up to 550 Wp per module, a rugged anodized aluminum frame rated for high wind and snow loads, and bifacial technology make these panels well suited for both large ground-mounted farms and demanding industrial rooftops.
Does the dual-glass design of the PHENex PS-M144(HCBF)-GG affect durability and degradation?
Yes, using dual tempered glass instead of a rear backsheet significantly improves the module's mechanical and chemical resistance. This design limits LID and PID degradation and extends panel lifespan compared to traditional backsheet construction, contributing to a lower cost of energy per installed watt over the system's lifetime.
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