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Philadelphia Solar Brand review

PS-P60-290

290 Wp Polycrystalline
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,512 of 14,129
Compare panels Datasheet PDF
Power (Wp)
290
Weak · bottom 22%
Efficiency (%)
17.80
Typical · median 19.00%
Density (Wp/m²)
177.7
Typical · median 189.9
Temp (%/°C)
-0.400
Weak · bottom 13%
Weight (kg)
18.0
Typical · median 20.2 kg
Warranty (yrs)
25
Typical · median 25 yrs

The PS-P60 (275-290 W) series comprises poly-crystalline photovoltaic modules manufactured by Philadelphia Solar on fully automated, robotic production lines, delivering consistent grade-A cell quality and minimal parameter mismatch between units. The series stands out with its positive power tolerance up to 3%, meaning installers always receive a panel that meets or exceeds its rated output, removing the risk of underestimating energy yield. Tempered anti-reflective glass paired with PID-free EVA encapsulant provides resistance to potential-induced degradation (PID) and stable performance over the entire operational lifetime. The modules are also resistant to salt mist and ammonia, making them a sound choice for coastal installations and agricultural sites where aggressive environments quickly degrade cheaper panels. The anodized aluminum frame confirms high mechanical strength against snow and wind loads, an important factor for large rooftop arrays and ground-mounted solar power plants. The PS-P60 series performs well in on-grid residential systems as well as commercial and industrial projects, offering investors predictable linear power degradation and a long-term product warranty backed by a DNV GL bankability report.

Ranking

1,517 panels in the 190-390 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 17.80% 19.00% Typical 13,377
Power density 177.7 189.9 Typical 13,377
Temperature coefficient -0.400 -0.360 Weak · bottom 13% 13,798
Weight per kWp 62.1 61.3 Typical 12,836
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 · 4 caution
Best for

Residential and commercial.

Not ideal for

Hot climates.

Watch-outs
-0.400 %/°C temperature coefficient

Bottom 13% of the 190-390 W band, against a median of -0.360.

What owners get
Positive power tolerance up to +3%

PS-P60 panels carry an exclusively positive power tolerance (up to +3%), eliminating the risk of receiving a module below its rated nameplate power - the buyer always gets a panel that meets or exceeds the labeled output.

Tier-1 status backed by a DNV GL report

Philadelphia Solar (Jordan, operating since 2007) holds an independent bankability report from DNV GL Dubai covering an audit of its manufacturing lines - such documentation eases project financing with banks and infrastructure funds.

PID-resistant construction

PID-free EVA encapsulant combined with tempered anti-reflective glass ensures stable electrical performance over time and prevents potential-induced degradation, a common issue in cheaper modules lacking this protection.

Salt mist and ammonia certification

Resistance to salt-mist and ammonia-induced corrosion makes the PS-P60 series a suitable choice for coastal installations and agrivoltaic applications (e.g., livestock building rooftops), where standard modules suffer faster frame and junction-box degradation.

Reinforced frame for heavy loads

The anodized aluminum frame provides high mechanical strength against snow and wind loads, relevant for designing large-scale commercial/industrial rooftop and ground-mount installations.

Trade-offs
Production discontinued

The PS-P60 series (launched in 2015) has been discontinued, meaning limited availability of spare units for servicing and no supply continuity for expanding existing installations.

Dated polycrystalline technology

Efficiency of 16.9-17.8% reflects mid-2010s poly-cell standards, whereas mono PERC/TOPCon modules available in 2026 reach 21-23%. For the same output, the PS-P60 requires more roof or ground area.

Warranty below current market standards

A 12-year product warranty and 25-year linear power warranty (degrading to roughly 80.7%) lag behind today's tier-1 offerings, where 25-30 year product warranties and 87-88% power retention at 30 years are becoming the norm.

Notes from the database
  • At 17.8% efficiency, this panel is 4.0pp below the database median of 21.8%
  • Power density of 177.8 W/m² is 40.3 W/m² below database median (218.1 W/m²) - needs more roof space
  • At -0.40%/°C, loses 0.10pp more power per degree than database median (-0.30%/°C)
  • 18.0 kg weight - 8.5 kg lighter than database median (26.5 kg), reducing installation effort
  • #13377 for efficiency, #13798 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 290 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.80 % Typical Segment median 19.00%
Vmpp · Impp 31.97 V · 9.08 A Operating point at max power
Voc · Isc 38.85 V · 9.36 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 20.2 kg
Cells 60 Polycrystalline
Coefficient Pmax -0.400 %/°C Weak bottom 13% of its segment
Coefficient Voc · Isc -0.320 · 0.050 %/°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 80.7 % Equals 228 W guaranteed
Degradation 0.70 % 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
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.400 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Philadelphia Solar PS-P60-290 290 W 17.80% -0.400 18.0 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg +50 W, cooler, +2.3 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg +40 W, cooler, +2.1 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg +45 W, +2.1 pp, +5 yr warranty
LNSK-335M 335 W 19.78% -0.360 21.0 kg +45 W, cooler, +2.0 pp
CS3K-325P 325 W 19.60% -0.360 18.5 kg +35 W, cooler, +1.8 pp
LNSK-330M 330 W 19.49% -0.360 21.0 kg +40 W, cooler, +1.7 pp
CS3K-320P 320 W 19.30% -0.360 18.5 kg +30 W, cooler, +1.5 pp
PS-P60-275 275 W 16.90% -0.400 18.0 kg -15 W, -0.9 pp
PS-P60-280 280 W 17.20% -0.400 18.0 kg -10 W, -0.6 pp
PS-P60-285 285 W 17.50% -0.400 18.0 kg -0.3 pp
PS-M60(BF)-305 305 W 18.70% -0.370 18.0 kg +15 W, cooler, +0.9 pp
PS-M60-310W 310 W 19.00% -0.390 18.0 kg +20 W, cooler, +1.2 pp
PS-M60-315W 315 W 19.30% -0.390 18.0 kg +25 W, cooler, +1.5 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +4.8 pp, +15 yr warranty
LEPV 400 400 W 22.31% -0.290 20.0 kg +110 W, cooler, +4.5 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +70 W, cooler, +4.3 pp

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-P60-(275-290 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-P60 (275-290 W) series still available for purchase?
The PS-P60 (275-290 W) series has been discontinued from current production by Philadelphia Solar. These panels may still be found in distributor warehouses or as limited stock, but the manufacturer has shifted focus to newer, higher-power modules. Buyers should confirm current stock availability and warranty validity with their supplier, as remaining inventory will not be replenished.
What warranty comes with the PS-P60 275-290 W panels?
Philadelphia Solar provides a 12-year product warranty and a 25-year linear power output warranty on the PS-P60 series. This means that after a quarter century of operation, the panel should still deliver a significant share of its rated initial power. The modules also feature a positive power tolerance of up to 3%, so actual output often exceeds the nameplate value.
Are PS-P60 panels suitable for coastal or agricultural installations?
Yes, this series is certified for resistance to salt mist and ammonia, making it a suitable choice for both coastal installations and agricultural buildings such as poultry houses or barns. In these environments, panels without such certification suffer much faster frame corrosion and cell degradation.
Can PS-P60 panels withstand heavy snow loads and strong winds?
Yes, the panels feature a reinforced anodized aluminum frame that provides high mechanical strength against snow load and wind pressure. This makes them well suited both for rooftops in heavy-snowfall regions and for large ground-mounted solar farms exposed to strong gusts, without risk of frame deformation or glass cracking.
What is PID resistance in the PS-P60 panels and why does it matter?
PID (potential-induced degradation) is a phenomenon that gradually reduces panel output due to high voltage stress within a string of modules. PS-P60 panels use PID-free EVA encapsulant and tempered anti-reflective glass to protect the cells from this effect. This ensures stable performance throughout the system's lifetime, especially in large arrays with many series-connected panels.
Is Philadelphia Solar a tier 1 manufacturer, and what does that mean for buyers?
Yes, Philadelphia Solar, headquartered in Jordan, holds tier 1 status, confirming the company's financial stability and product bankability. The PS-P60 series is backed by a DNV GL bankability report, which makes it easier to secure bank or leasing financing for a project and gives investors confidence in product quality and the long-term warranty commitment.
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