--- title: "Philadelphia Solar PS-M72(BF)-400W Solar Panel: Specs & Datasheet | ComparePV" description: "Philadelphia Solar PS-M72(BF)-400W solar panel. Specs: 19.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/philadelphia-solar-ps-m72-bf-400w" image: "https://comparepv.com/og/panel/philadelphia-solar-ps-m72-bf-400w.png" updated: 2026-09-11 --- # Philadelphia Solar PS-M72(BF)-400W Middle of its segment, weak in heat 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Philadelphia Solar - **Model:** PS-M72(BF)-400W - **Series:** PS-M72(BF)-(390-405 W) - **Rated power:** 400 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 400 W | 410 W | Weak - bottom 9% | | | Module efficiency | 19.80% | 20.60% | Weak - bottom 9% | 12,501 | | Power density | 197.7 | 206.2 | Weak - bottom 8% | 12,513 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 5% | 13,161 | | Weight (kg) | 23.0 kg | 22.0 kg | Weak - bottom 22% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.80% | 20.60% | Weak - bottom 9% | 12,501 | | Power density | 197.7 | 206.2 | Weak - bottom 8% | 12,513 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 5% | 13,161 | | Weight per kWp | 57.5 | 53.0 | Weak - bottom 22% | 11,333 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Watch out for - **-0.370 %/°C temperature coefficient** - Bottom 5% of the PERC 400-450 W segment, against a median of -0.350. Ranked 13,161st in the whole database. - **197.7 watts per square metre** - Bottom 8% of the PERC 400-450 W segment, against a median of 206.2. Ranked 12,513th in the whole database. - **19.80% module efficiency** - Bottom 9% of the PERC 400-450 W segment, against a median of 20.60%. Ranked 12,501st in the whole database. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Hot climates, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 400 W - **Efficiency:** 19.80 % - **Voltage at Pmax (Vmp):** 41.80 V - **Current at Pmax (Imp):** 9.57 A - **Open-circuit voltage (Voc):** 50.52 V - **Short-circuit current (Isc):** 10.03 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:** 72 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2007 mm - **Width:** 1008 mm - **Thickness:** 40 mm - **Weight:** 23.0 kg - **Area:** 2.02 m2 - **Power density:** 197.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 330 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12501 of 14129 | | Power density | 12513 of 14129 | | Temperature coefficient | 13161 of 14129 | | Weight | 11333 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Lightweight bifacial construction** - The transparent backsheet instead of a second glass layer makes the series 25-35% lighter than conventional glass-glass modules, reducing transport and installation costs and lowering mounting structure and roof load requirements. - **Extra energy yield without a larger footprint** - Bifacial technology captures albedo reflected off the ground, boosting the productivity of ground-mount or commercial installations without needing to expand the array footprint - a key advantage where available space is limited. - **PID resistance and positive power tolerance** - Certified resistance to potential-induced degradation (PID) combined with positive power tolerance reduces the risk of underperformance relative to nameplate ratings - an important factor for accurate ROI planning. - **Tier-1, bankable manufacturer with long track record** - Philadelphia Solar has operated since 2007 and appears on Tier-1 (BNEF) manufacturer lists, reflecting a documented history of supplying modules to bank-financed projects above 10 MW - a key criterion for debt financing of solar installations. - **Certified for high wind and snow loads** - The module design is certified for demanding mechanical load conditions, making the series suitable for both rooftop installations and utility-scale solar farms in harsher climates. ## Cons - **Production discontinued** - Released in 2022, the series has since been discontinued by the manufacturer, meaning limited availability of spare parts and continuity of service in case of warranty claims or expansion of an existing installation with matching modules. - **Efficiency below comparable models** - The maximum 20% efficiency trails direct competitors at the same 405 Wp power class - EGing PV STAR SERIES and VSUN VSUN405-108BMH-DG reach 20.74%, and Goldi Solar GS10-M108-BF reaches 20.66%, roughly 0.66-0.74 percentage points higher, translating into greater output from the same roof or ground area. - **Legacy PERC cell technology** - The modules are built on PERC cell technology, which by 2026 is being superseded by N-type TOPCon and HJT cells offering lower LID/LeTID degradation and better high-temperature performance - a potential competitiveness gap for new projects against current market offerings. ## About this series The PS-M72(BF)-(390-405 W) series consists of **bifacial monocrystalline PERC modules** engineered to squeeze maximum output from every square meter of an installation. Thanks to a transparent backsheet in place of a conventional rear glass, these panels can capture light reflected off the ground or roof surface, delivering extra energy yield without expanding the footprint of a roof or ground-mount array. This makes the series especially appealing to investors looking to boost the productivity of a commercial or utility-scale solar plant without altering its physical dimensions. Compared to traditional dual-glass modules, the series stands out for its **lightweight construction, 25-35% lighter**, which considerably simplifies transport and installation while easing the load requirements on mounting structures and roofs. The PERC cell technology ensures strong performance even under low-light conditions, translating into steady energy production on overcast days and during early morning or evening hours. The panels are **PID-resistant**, and their build has been certified to withstand high wind loads and heavy snow, making them a solid choice for both rooftop residential and industrial systems as well as large-scale solar farms. A **positive power tolerance** further reduces the risk of underdelivering against rated nameplate output. ## Notable figures - Efficiency of 19.8% is 0.8pp below the \*\*PERC 400-450W\*\* median (20.6%) - At 197.7 W/m², this panel generates 8.5 W/m² less per unit area than \*\*PERC 400-450W\*\* median (206.2 W/m²) - At -0.37%/°C, loses 0.02pp more power per degree than \*\*PERC 400-450W\*\* median (-0.35%/°C) - Weight of 23.0 kg is typical for \*\*PERC 400-450W\*\* panels - 75% bifaciality enables rear-side power generation, boosting yield by 4-11% on reflective surfaces ## Questions ### How do the bifacial Philadelphia Solar PS-M72(BF) panels differ from standard monofacial modules? PS-M72(BF) panels feature a transparent backsheet instead of a standard white one, allowing them to capture additional light reflected from the ground or roof surface. This can yield several percent more energy from the same footprint compared to classic monofacial modules, especially over light-colored surfaces such as gravel or reflective roofing. ### How much does the PS-M72(BF) panel weigh, and is it easier to install than dual-glass modules? The PS-M72(BF) series is 25-35% lighter than typical dual-glass bifacial panels, despite also using bifacial technology. The reduced weight simplifies rooftop transport, speeds up installation, and lowers the load on the mounting structure, which matters particularly when retrofitting older roofs with limited load capacity. ### What warranty does Philadelphia Solar offer on the PS-M72(BF) series? The manufacturer provides a 12-year product warranty and a 25-year power performance warranty. The panels also come with a positive power tolerance, meaning the actual module output is never below the rated nameplate value and may slightly exceed it. ### Are PS-M72(BF) panels suitable for large ground-mounted solar farms? Yes, the module construction is certified for high wind loads and heavy snow loads, making it suitable for both rooftop and large-scale ground-mounted installations. Bifacial technology is particularly cost-effective on ground-mount farms, where reflected light from the ground beneath the modules can be easily optimized. ### Is the PS-M72(BF)-(390-405 W) series resistant to PID degradation? Yes, the modules carry certified resistance to potential induced degradation (PID), preventing power loss caused by leakage currents in large installations with high system voltages. This ensures stable long-term performance throughout the module's operating life. ### Are Philadelphia Solar PS-M72(BF)-(390-405 W) panels still available for purchase? The PS-M72(BF)-(390-405 W) series has been discontinued from active production by Philadelphia Solar. Availability is now limited to remaining warehouse stock through distributors. Customers planning new installations are advised to check the manufacturer's current lineup of newer-generation bifacial modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/PS-M72BF-390-405W-e81cc7564938.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, +3.3 pp, +5 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, cooler, +3.2 pp | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, cooler, +3.2 pp | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, cooler, +3.2 pp | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, cooler, +3.2 pp | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, cooler, +3.2 pp | | [Philadelphia Solar PS-M72(BF)-390W](https://comparepv.com/panel/philadelphia-solar-ps-m72-bf-390w) | 390 W | -10 W, -0.5 pp | | [Philadelphia Solar PS-M72(BF)-395W](https://comparepv.com/panel/philadelphia-solar-ps-m72-bf-395w) | 395 W | Very close match | | [Philadelphia Solar PS-M72(BF)-405W](https://comparepv.com/panel/philadelphia-solar-ps-m72-bf-405w) | 405 W | Very close match | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +4.2 pp, +15 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +3.9 pp, +15 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +3.7 pp, +15 yr warranty | | [MY Solar MS480NC-HJTPBFT](https://comparepv.com/panel/my-solar-ms480nc-hjtpbft) | 480 W | +80 W, cooler, +2.3 pp | | [LG LG440QAC-A6](https://comparepv.com/panel/lg-lg440qac-a6) | 440 W | +40 W, cooler, +2.3 pp | | [MY Solar MS475NC-HJTPBFT](https://comparepv.com/panel/my-solar-ms475nc-hjtpbft) | 475 W | +75 W, cooler, +2.1 pp | | [LG LG435QAC-A6](https://comparepv.com/panel/lg-lg435qac-a6) | 435 W | +35 W, cooler, +2.1 pp | --- Source: https://comparepv.com/panel/philadelphia-solar-ps-m72-bf-400w 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.