--- title: "Philadelphia Solar PS-M60(BF)-305 Solar Panel: Specs & Datasheet | ComparePV" description: "Philadelphia Solar PS-M60(BF)-305 solar panel. Specs: 18.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/philadelphia-solar-ps-m60-bf-305" image: "https://comparepv.com/og/panel/philadelphia-solar-ps-m60-bf-305.png" updated: 2026-09-11 --- # Philadelphia Solar PS-M60(BF)-305 Solid all-round for its segment 291 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** Philadelphia Solar - **Model:** PS-M60(BF)-305 - **Series:** PS-M60(BF)-(305-320 W) - **Rated power:** 305 W - **Cell technology:** PERC - **Bifacial:** yes ## 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 | -0.370 | -0.360 | Typical | 13,161 | | 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 | -0.370 | -0.360 | Typical | 13,161 | | Weight per kWp | 59.0 | 60.3 | Typical | 12,070 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | - **Best for:** Residential, commercial and off-grid. ## Specification ### Electrical - **Rated power (Pmax):** 305 W - **Efficiency:** 18.70 % - **Voltage at Pmax (Vmp):** 33.23 V - **Current at Pmax (Imp):** 9.18 A - **Open-circuit voltage (Voc):** 40.52 V - **Short-circuit current (Isc):** 9.62 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### 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:** 85.0 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 258 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13152 of 14129 | | Power density | 13133 of 14129 | | Temperature coefficient | 13161 of 14129 | | Weight | 12070 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - 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 ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/PS-M60BF-305-320W-2d36c9d58652.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 | Hotter, +0.3 pp | | [Philadelphia Solar PS-M60-315W](https://comparepv.com/panel/philadelphia-solar-ps-m60-315w) | 315 W | +10 W, hotter, +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-bf-305 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.