Solid all-round for its segment
The Draco Module Series (N-TOPCON HIGH EFFICIENCY 132-18BB-W-WG) is engineered for maximum energy gain where standard modules lose out - under lower irradiance, high temperatures, and challenging installation locations. The use of N-TOPCon cells enhances performance in suboptimal conditions and minimizes typical efficiency drops seen in older technologies over time, resulting in more predictable energy production throughout the system's lifespan.
Its competitive edge lies in the bifacial construction, enabling the module to utilize reflected light from the ground surface - a tangible benefit for ground-mounted installations, flat roofs, vertical configurations, or environments with high reflectivity (e.g., snow). Furthermore, the double glass increases mechanical and environmental resilience while supporting long-term parameter stability. The additional interconnection density in the 18BB wiring scheme promotes stable operation under partial shading and minimizes current path losses.
This is an excellent choice for utility-scale PV farms, commercial projects, and challenging installations - where long-term reliability and high yield matter just as much as catalog specifications.
Ranking
Signals from the data
Utility-scale, commercial, hot-climate and shaded-installations.
Draco N-type cells feature zero light-induced degradation (LID), first-year degradation below 1.0%, and a linear power decline of just 0.4% per year over 30 years, delivering more predictable energy yield than older P-type PERC modules.
Cell bifaciality exceeds 80%, and the module can gain up to an additional 30% energy from the rear side depending on ground albedo. The dual-glass design also improves sealing and PID resistance compared to standard glass-backsheet modules.
Phono Solar (founded in 2004) has been consistently listed on the Bloomberg NEF Tier 1 list for several years thanks to proven bankability strength, easing financing for commercial and utility-scale projects using this series.
The manufacturer offers a 30-year linear power warranty and a 15-year product warranty, while most TOPCon modules in this segment (including some peer comparables) still offer the standard 25 years of power and 12 years of product coverage.
Modules reach up to 710 Wp at up to 22.86% efficiency, matching the competing Heliene 132HC HJT series (710 Wp/22.86%) despite TOPCon's lower manufacturing cost relative to HJT.
Maximum efficiency of 22.86% is marginally lower than competing series Suntech Ultra X Pro Plus and Talesun TM8G66M (both 22.9% at the same 710 Wp power), a small but measurable gap on datasheet comparison.
The dual-glass build typical of bifacial modules in this class increases module weight compared to standard glass-backsheet panels, which may require reinforced mounting structures on roofs with limited load capacity.
- At 22.9% efficiency, this panel is on par with typical TOPCon 700-750W modules
- At 228.6 W/m² power density, roof space requirements are typical for TOPCon 700-750W panels
- Temperature coefficient of -0.29%/°C matches the TOPCon 700-750W median
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
- Ranked #2536 out of 14005 panels for efficiency in the database
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 710 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.
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