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Philadelphia Solar Brand review

PS-M60(BF)-305

305 Wp PERC Bifacial 75%
ComparePV verdict

Solid all-round for its segment

Rank 13,335 of 14,129
Compare panels Datasheet PDF
Power (Wp)
305
Weak · bottom 10%
Efficiency (%)
18.70
Typical · median 19.00%
Density (Wp/m²)
186.9
Typical · median 190.0
Temp (%/°C)
-0.370
Typical · median -0.360
Weight (kg)
18.0
Typical · median 19.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

The PS-M60(BF)-(305-320 W) series consists of dual-sided Mono PERC Bifacial modules that capture additional energy from reflected light hitting the rear side of the panel. The use of a transparent backsheet instead of a traditional double-glass structure preserves the energy gain typical of bifacial technology while cutting module weight by as much as 25-35% compared to glass-glass designs - a meaningful difference for transport, installation, and mounting structure selection. High-purity Grade A cells combined with PERC technology deliver solid performance under low-light conditions and low power degradation over time, translating into stable energy yield throughout the module's service life. The panels stand out with a positive power tolerance, PID resistance, and certified high mechanical load tolerance against wind and snow, making them suitable for residential and commercial rooftops as well as large ground-mount installations and off-grid systems. This is a solid choice for investors seeking higher energy output from the same mounting area without compromising on durability or ease of installation.

Ranking

291 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.70% 19.00% Typical 13,152
Power density 186.9 190.0 Typical 13,133
Temperature coefficient -0.370 -0.360 Typical 13,161
Weight per kWp 59.0 60.3 Typical 12,070
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 2 caution
Best for

Residential, commercial and off-grid.

What owners get
Lightweight bifacial design

The transparent backsheet used instead of a conventional double-glass laminate cuts module weight by as much as 25-35% compared to competing double-glass bifacial designs, such as the Sunket 182mm Double Glass Bifacial series from the peer comparables. This is a tangible advantage for transport, installation, and mounting structure sizing.

Tier-1 manufacturer, 19 years on market

Philadelphia Solar was founded in 2007, holds Tier-1 bankable status, and operates a 580 MW factory in Amman exporting to over 52 countries. This gives investors financing confidence and a longer track record than many newer Asian brands.

Competitive efficiency up to 19.6%

Peak efficiency of 19.6% places the series near the top of the Mono PERC 305-320 Wp segment - above Sun Earth's AGRI Half Cell (19.55%) and Sunket's Double Glass Bifacial (19.55%), though marginally below SP Enerji (19.67%).

PID resistance and high mechanical load rating

High-purity Grade A cells combined with PERC technology deliver low power degradation over time along with certified resistance to wind and snow loads, making the module suitable for rooftop, large ground-mount, and off-grid systems alike.

Trade-offs
Production discontinued in 2022

Launched in 2018, the series was discontinued in 2022, meaning limited service and spare-part availability and potential difficulty matching modules for repairs or system expansion in the future.

No half-cut cell technology

Unlike competing series in the peer comparables - Sun Earth's AGRI Mono Half Cell and Sunket's 80Cells Half Cell - the PS-M60(BF) uses full-size 60-cell construction rather than half-cut cells, typically resulting in higher resistive losses and weaker partial-shading tolerance.

Notes from the database
  • Efficiency of 18.7% is 0.8pp below the PERC 0-400W median (19.4%)
  • At 186.9 W/m², this panel generates 7.3 W/m² less per unit area than PERC 0-400W median (194.2 W/m²)
  • At -0.37%/°C, hot weather performance is typical for PERC 0-400W panels
  • At 18.0 kg, this panel is 2.5 kg lighter than PERC 0-400W median (20.5 kg) - easier handling during installation
  • Bifaciality factor of 75% can add 4-11% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 305 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.70 % Typical Segment median 19.00%
Vmpp · Impp 33.23 V · 9.18 A Operating point at max power
Voc · Isc 40.52 V · 9.62 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1648×990×35 mm · 1.63 m² of roof
Weight 18.0 kg Typical Typical · median 19.0 kg
Cells 60 · PERC Monocrystalline
Bifaciality 75 % Rear output as a share of front
Coefficient Pmax -0.370 %/°C Typical median -0.360 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 43 °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 85.0 % Equals 258 W guaranteed
Degradation 0.50 % Per year after the first

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
-0.370 %/°C against a segment median of -0.360
-
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-M60(BF)-305 305 W 18.70% -0.370 18.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.6 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.6 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, +4.6 pp, +5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.4 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.4 pp
ZEUS 3.2 285WP FullBlack 285 W 23.14% -0.260 15.6 kg Cooler, +4.4 pp, +5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg Lighter, +4.3 pp, +5 yr warranty
GKA182M260W 260 W 23.00% - 10.8 kg Lighter, +4.3 pp, +5 yr warranty
GKA182M270W 270 W 23.00% - 10.8 kg Lighter, +4.3 pp, +5 yr warranty
PS-P60-275 275 W 16.90% -0.400 18.0 kg -30 W, hotter, -1.8 pp
PS-P60-280 280 W 17.20% -0.400 18.0 kg -25 W, hotter, -1.5 pp
PS-P60-285 285 W 17.50% -0.400 18.0 kg -20 W, hotter, -1.2 pp
PS-P60-290 290 W 17.80% -0.400 18.0 kg -15 W, hotter, -0.9 pp
PS-M60-310W 310 W 19.00% -0.390 18.0 kg Hotter, +0.3 pp
PS-M60-315W 315 W 19.30% -0.390 18.0 kg +10 W, hotter, +0.6 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +3.9 pp, +15 yr warranty

Found 191 panels of the same or similar size to this one, within ±10 mm. See them here Found 276 panels of the same or similar size to this one, within ±25 mm. See them here Found 405 panels of the same or similar size to this one, within ±50 mm. See them here Found 487 panels of the same or similar size to this one, within ±100 mm. See them here

About the PS-M60(BF)-(305-320 W) series

6 answered

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

Is the Philadelphia Solar PS-M60(BF)-(305-320 W) series still available for purchase?
No, the PS-M60(BF) series has been discontinued from current production and replaced by newer, higher-power models. Some units may still be available from distributors as remaining stock, so it's best to check availability directly with the seller. The manufacturer's warranty remains valid regardless of the series being discontinued.
How does the bifacial PS-M60(BF) panel differ from a standard monofacial panel?
The bifacial PS-M60(BF) panel features a transparent backsheet instead of a standard opaque one, allowing it to capture additional reflected light from the ground, roof, or nearby light surfaces. In practice, this delivers extra energy yield compared to a monofacial panel of the same nominal power, especially when mounted over light-colored surfaces such as gravel or white roofing.
What is the maximum power output of the PS-M60(BF) series and what does it depend on?
The series offers power outputs ranging from 305 to 320 Wp, with the 320 Wp variant achieving the highest efficiency thanks to Grade A PERC cells. The exact power output depends on the chosen module variant within the series - higher-rated models deliver more energy from the same roof area.
What warranty comes with Philadelphia Solar PS-M60(BF) panels?
The manufacturer provides a 12-year product warranty and a 25-year power performance warranty. This means the panel is expected to maintain a guaranteed percentage of its initial power output over a quarter century despite natural silicon cell degradation, which is standard for Tier 1 solar panels.
Are PS-M60(BF) panels resistant to PID and power degradation over time?
Yes, modules in this series feature certified resistance to PID (Potential Induced Degradation), which is power loss caused by voltage potential differences in the installation. Thanks to high-purity Grade A silicon cells combined with PERC technology, power degradation over time is low, resulting in stable energy yield throughout the system's operational lifetime.
Are Philadelphia Solar PS-M60(BF) panels suitable for large ground-mount installations and off-grid systems?
Yes, thanks to certified high mechanical strength against wind and snow loads and lower weight compared to standard glass-glass bifacial panels, this series works well in large solar farms, off-grid systems, and commercial rooftops, where the ratio of energy yield to mounted structure weight matters most.
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