Strong in heat, no clear weak spot
The Phono Solar Bifacial Twinplus Module (HIGH EFFICIENCY MONO-PERC BM6-10B-G) is designed for installations where real energy yield matters across various conditions-beyond just ideal exposure. The use of bifacial construction actively utilizes reflected light from the ground, translating into higher production where conventional modules reach their limits. Simultaneously, mono-PERC technology supports stable performance across a wide range of irradiance levels, and the combination of half-cut with multi-busbar helps minimize cell connection losses and improves module performance under partial shading.
In practice, this series addresses common investor challenges: yield losses in hot weather, sensitivity to partial shading, and the risk of accelerated degradation. Its reinforced structure with dual-glass and POE encapsulation enhances PID resistance and increases reliability in harsh environments.
This is an excellent choice for utility-scale PV farms, ground-mounted systems, carports, and commercial installations, where predictable production and a better LCOE compared to standard monofacial modules are key priorities.
Ranking
Signals from the data
Commercial, utility-scale and shaded-installations.
Top 7% of the PERC 550-600 W segment, against a median of -0.350. Ranked 8,613th in the whole database.
Top 20% of the PERC 550-600 W segment, against a median of 212.9.
Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.
The dual-sided module design captures reflected ground light (albedo), delivering additional energy production versus comparable monofacial modules in ground-mount, carport, and utility-scale PV installations.
Combining half-cut cells with multi-busbar technology lowers resistive losses and improves module behavior under partial shading, which matters for commercial installations with irregular shadow patterns.
The double-glass construction with POE encapsulation (instead of standard EVA) increases resistance to potential-induced degradation (PID) and improves module sealing in humid or demanding operating environments.
Phono Solar has been included on the BloombergNEF Tier 1 list for the ninth consecutive year (confirmed in Q2 2024), reflecting stable project bankability and a proven track record of large-scale PV deliveries.
Maximum efficiency of 21.48% at up to 555 Wp places this series directly alongside comparable tier-1 products (ET Solar Elite PLUS 21.4%, Boviet VEGA 21.3%, JA Solar DEEP BLUE 3.0 21.5%), with no meaningful gap from the top of the PERC segment.
The series has been discontinued (released 2020, ended 2024), meaning limited availability of matching replacement modules for expanding existing installations and potentially slower response times for warranty servicing.
The 12-year product warranty is shorter than the 15 years now offered by many Tier-1 manufacturers on newer TOPCon series, positioning this mono-PERC series' warranty terms as dated relative to the 2026 market baseline.
- Efficiency of 21.5% matches the PERC 550-600W median
- At 214.8 W/m² power density, roof space requirements are typical for PERC 550-600W panels
- Temperature coefficient of -0.33%/°C matches the PERC 550-600W median
- Weight of 32.0 kg is 1.2 kg above PERC 550-600W median (30.8 kg) - verify structural support
- Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof
Specifications
Datasheet charts
Measured curves published by Phono Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 555 Wp appear here. The rest cover the whole series.
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 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2548 panels of the same or similar size to this one, within ±100 mm. See them here
About the Bifacial Twinplus Module Series (HIGH EFFICIENCY MONO-PERC BM6-10B-G) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.