--- title: "Philadelphia Solar PS-M60-305W Solar Panel: Specs & Datasheet | ComparePV" description: "Philadelphia Solar PS-M60-305W solar panel. Specs: 18.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/philadelphia-solar-ps-m60-305w" image: "https://comparepv.com/og/panel/philadelphia-solar-ps-m60-305w.png" updated: 2026-09-11 --- # Philadelphia Solar PS-M60-305W Middle of its segment, weak in heat 291 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Philadelphia Solar - **Model:** PS-M60-305W - **Series:** PS-M60-(305-330W) - **Rated power:** 305 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (291 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 305 W | 325 W | Weak - bottom 10% | | | Module efficiency | 18.70% | 19.00% | Typical | 13,152 | | Power density | 186.9 | 190.0 | Typical | 13,133 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 16% | 13,659 | | Weight (kg) | 18.0 kg | 19.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 18.70% | 19.00% | Typical | 13,152 | | Power density | 186.9 | 190.0 | Typical | 13,133 | | Temperature coefficient | -0.390 | -0.360 | Weak - bottom 16% | 13,659 | | Weight per kWp | 59.0 | 60.3 | Typical | 12,070 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Watch out for - **-0.390 %/°C temperature coefficient** - Bottom 16% of the PERC 300-350 W segment, against a median of -0.360. - **Best for:** Residential, commercial and cold-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 305 W - **Efficiency:** 18.70 % - **Voltage at Pmax (Vmp):** 32.95 V - **Current at Pmax (Imp):** 9.26 A - **Open-circuit voltage (Voc):** 40.15 V - **Short-circuit current (Isc):** 9.78 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.390 %/degC - **Temperature coefficient of Voc:** -0.300 %/degC - **Temperature coefficient of Isc:** 0.060 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1648 mm - **Width:** 990 mm - **Thickness:** 35 mm - **Weight:** 18.0 kg - **Area:** 1.63 m2 - **Power density:** 186.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 81.4 % - **Annual degradation:** 0.65 % - **Output after 30 years:** 244 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13152 of 14129 | | Power density | 13133 of 14129 | | Temperature coefficient | 13659 of 14129 | | Weight | 12070 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Certified corrosion and PID resistance** - The series holds IEC TS 62804-1 (PID), IEC 61701 (salt mist), and IEC 62716 (ammonia corrosion) certifications, making it a viable choice for both coastal installations and agricultural buildings where standard modules often degrade faster. - **Tier-1 manufacturer with 19 years in market** - Philadelphia Solar (Jordan, founded 2007) is listed among BNEF Tier-1 bankable manufacturers, easing project financing through commercial banks and reducing investor risk compared to less established brands. - **Proven mechanical durability** - The module passed the IEC TS 62782 dynamic load test and holds wind and snow load certifications, directly relevant in Polish climate conditions where roof surfaces periodically face high snow loads. - **25-year linear power warranty** - The manufacturer offers a standard 25-year power warranty for the segment, comparable to peers such as Waaree ARKA (330 Wp, 19.81% efficiency) or JA Solar Monocrystalline80, giving predictable degradation for LCOE planning. - **Versatile 60-cell design** - The 10x6 Mono PERC class-A cell configuration works well both in small residential installations on pitched roofs and in larger commercial systems, without needing a dedicated module variant. ## Cons - **Production discontinued** - The PS-M60-(305-330W) series, launched in 2017, has been discontinued, meaning limited spare parts availability, no manufacturer service support for warranty claims, and potential difficulty sourcing matching modules to extend an existing installation. - **Efficiency below current tier-1 standards** - Maximum efficiency of 20.2% falls well short of newer peer modules - e.g. JA Solar Monocrystalline80 reaches 23.15% at the same 330 Wp power - as 2017-era PERC technology has largely been superseded by N-type TOPCon. - **Low unit power for today's market** - The 305-330 Wp range is significantly lower than current tier-1 modules (400-600+ Wp), requiring more panels, longer strings, and more roof area for the same system capacity. - **Shorter product warranty** - The 12-year product warranty is shorter than the 15-25 years now standard among leading tier-1 manufacturers, a relevant factor when comparing total lifecycle risk cost. ## About this series The PS-M60-(305-330W) series is a proven solution for installers seeking a versatile monocrystalline panel suited equally well to residential rooftops and larger commercial installations. The modules are built on 60 Grade A **Mono PERC** cells arranged in a 10x6 configuration, delivering stable performance even under less favorable irradiance conditions. The panel stands out for its **PID resistance**, achieved through a PID-free EVA encapsulant, ensuring no power loss from potential induced degradation. Its tempered anti-reflective glass and anodized aluminum frame construction provide **high mechanical strength**, certified for wind and snow load resistance. This is a key advantage in Polish climate conditions, where panels must withstand significant snow loads in winter. In addition, the modules are **resistant to salt mist and ammonia**, making them well suited for coastal installations as well as agricultural applications, such as on livestock buildings. The manufacturer offers **low annual power degradation** along with a long-term linear warranty, translating into predictable return on investment and lower LCOE throughout the operating life of the photovoltaic installation. ## Notable figures - Efficiency of 18.7% is 0.8pp below the \*\*PERC 0-400W\*\* median (19.4%) - 186.9 W/m² power density is 7.3 W/m² below \*\*PERC 0-400W\*\* median (194.2 W/m²) - requires larger installation area - At -0.39%/°C, loses 0.03pp more power per degree than \*\*PERC 0-400W\*\* median (-0.36%/°C) - At 18.0 kg, this panel is 2.5 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg) - easier handling during installation - Ranked #13152 out of 14129 panels for efficiency in the database ## Questions ### Is the Philadelphia Solar PS-M60-(305-330W) series still available for purchase? The PS-M60-(305-330W) series has been discontinued from current production and replaced by newer, higher-power models. These panels may still be available from distributors as remaining stock, so it's worth confirming availability and manufacturing date before purchasing, especially for larger orders requiring uniform module batches. ### What is the warranty on Philadelphia Solar PS-M60-(305-330W) panels? The manufacturer provides a 12-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty. This guarantees a gradually declining but predictable power output level over a quarter century, translating into a predictable return on investment for the PV installation. ### Are PS-M60-(305-330W) panels PID-resistant and suitable for large solar farms? Yes, the modules use PID-resistant EVA encapsulant, protecting against potential-induced degradation, which can be a significant issue in large installations with high string voltages. This protection keeps power output stable regardless of the system's voltage configuration, making the panels suitable for both residential and commercial-scale PV farms. ### How do the Mono PERC cells in PS-M60-(305-330W) differ from standard polycrystalline panels? The Grade A Mono PERC cells used in this series feature an additional passivation layer on the back of the cell that reflects unused light back into the cell, increasing energy conversion efficiency. Compared to polycrystalline panels, this means higher power output for the same surface area and better performance under low-light or high-temperature conditions. ### Are Philadelphia Solar PS-M60-(305-330W) panels suitable for coastal or livestock building installations? Yes, this series is certified resistant to salt mist and ammonia exposure, which is essential for installations near the sea and on agricultural buildings where ammonia vapors are present in the air. This allows the panels to maintain durability and performance even in corrosive environments that are challenging for standard PV modules. ### What is the maximum power rating of a panel in the PS-M60-(305-330W) series, and how many panels are needed for a typical home installation? The highest-power variant in this series reaches up to 330 Wp. For a typical residential installation of 5-6 kWp, around 15-18 panels are needed, depending on the chosen power variant. Since the series has been discontinued, availability of a specific power rating may be limited when expanding an existing installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/PS-M60325-330W-7063bdbdcdcc.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +4.6 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +4.6 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | Cooler, +4.6 pp, +5 yr warranty | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +4.4 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +4.4 pp | | [Heckert Solar ZEUS 3.2 285WP FullBlack](https://comparepv.com/panel/heckert-solar-zeus-3-2-285wp-fullblack) | 285 W | Cooler, +4.4 pp, +5 yr warranty | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | Lighter, +4.3 pp, +5 yr warranty | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | Lighter, +4.3 pp, +5 yr warranty | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | Lighter, +4.3 pp, +5 yr warranty | | [Philadelphia Solar PS-P60-275](https://comparepv.com/panel/philadelphia-solar-ps-p60-275) | 275 W | -30 W, hotter, -1.8 pp | | [Philadelphia Solar PS-P60-280](https://comparepv.com/panel/philadelphia-solar-ps-p60-280) | 280 W | -25 W, hotter, -1.5 pp | | [Philadelphia Solar PS-P60-285](https://comparepv.com/panel/philadelphia-solar-ps-p60-285) | 285 W | -20 W, hotter, -1.2 pp | | [Philadelphia Solar PS-P60-290](https://comparepv.com/panel/philadelphia-solar-ps-p60-290) | 290 W | -15 W, hotter, -0.9 pp | | [Philadelphia Solar PS-M60-310W](https://comparepv.com/panel/philadelphia-solar-ps-m60-310w) | 310 W | +0.3 pp | | [Philadelphia Solar PS-M60-315W](https://comparepv.com/panel/philadelphia-solar-ps-m60-315w) | 315 W | +10 W, +0.6 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +3.9 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/philadelphia-solar-ps-m60-305w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.