Middle of its segment, weak in heat
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.
Ranking
Signals from the data
Commercial and utility-scale.
Hot climates, roofs where every square metre has to count and tight roof space.
Bottom 16% of the PERC 350-400 W segment, against a median of -0.350.
Bottom 23% of the PERC 350-400 W segment, against a median of 199.0.
Bottom 23% of the PERC 350-400 W segment, against a median of 19.90%.
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.
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.
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.
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.
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.
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.
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.
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.
- Efficiency of 19.3% matches the PERC 0-400W median
- Power density of 192.8 W/m² matches the PERC 0-400W median
- At -0.37%/°C, hot weather performance is typical for PERC 0-400W panels
- At 23.0 kg (2.5 kg above PERC 0-400W median of 20.5 kg), requires checking roof load capacity
- Bifaciality factor of 75% can add 4-11% extra yield with reflective mounting surface
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Found 113 panels of the same or similar size to this one, within ±10 mm. See them here Found 212 panels of the same or similar size to this one, within ±25 mm. See them here Found 332 panels of the same or similar size to this one, within ±50 mm. See them here Found 753 panels of the same or similar size to this one, within ±100 mm. See them here
About the PS-M72(BF)-(390-405 W) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.