Warranty pick, no clear weak spot
The AE Solar AURORA MD-120BS (Bifacial Single-Glass) series are modules designed for high performance in real-world conditions, even when sunlight is diffuse. The use of a bifacial design allows for efficient utilization of light reflected from the ground, which will be particularly appreciated by investors in ground-mounted, carport, and brightly lit industrial roof installations. The modules are based on monocrystalline PERC cells with gallium doping, which minimize typical power losses over time and provide more stable operation at varying temperatures. Thanks to half-cut technology, the panel is better able to cope with partial shading and has lower internal losses, which translates into more predictable energy production. The single-glass design simplifies logistics and installation, where weight and installation speed are important, and components with enhanced resistance (including to PID) support durability in demanding environments. This is the choice for businesses and prosumers who want to maximize the output from the same area without paying a premium for strictly high-end solutions.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Top 17% of the PERC 400-450 W segment, against a median of 25 yrs.
AE Solar is the only European manufacturer on BloombergNEF's Tier 1 list with high bankability – the indicator has increased from 26% in 2023 to 50% in 2024. This is a significant advantage when financing projects through banks or for institutional investors who require confirmation of the manufacturer's credibility.
The manufacturer guarantees 82.2% output power after 30 years of operation, as well as a 30-year product warranty. Comparable products from the (Zonergy ZPM MH3-72, SunKean SKT440) segment typically offer 25-year warranties, making the MD-120BS series stand out in terms of investment protection.
Using gallium (Ga) instead of boron reduces light-induced degradation (LID), which is typical for standard P-type solar cells. When combined with half-cut technology, the module performs better in partially shaded conditions and generates lower internal losses.
A bifaciality factor of 70±5% allows for the effective use of reflected light from the ground, which, in ground-mounted, carport, or light-colored industrial roof installations, can translate into a real increase in annual energy yield of 5–15% compared to a monofacial counterpart.
A single pane of glass instead of a dual-glass construction reduces the weight of the module, which lowers the load-bearing requirements of the mounting structure and speeds up installation. This is a practical advantage in industrial facilities and carports, where the weight of the roof or canopy is a design constraint.
The maximum efficiency of the series is 21.35%, while the direct equivalents – Risen RSM96-11-440-460BNDG and SunKean SKT440~460M12-96D4 – achieve 23.00% and 23.02%, respectively. The difference of approximately 1.65% indicates that, for the same panel area, there is about 7.8% less installed power, which could be a significant limitation in projects with high power density requirements.
The series is based on P-type PERC cells, while comparable products – particularly the Risen RSM96-11 (TOPCon N-type) – offer a lower temperature coefficient and reduced LID/LeTID degradation, even compared to the Ga-doped PERC variant. Over a 30-year period, the difference in degradation could result in a measurable reduction in overall energy yield.
- Efficiency of 20.4% matches the PERC 400-450W median
- At 204.2 W/m² power density, roof space requirements are typical for PERC 400-450W panels
- Temperature coefficient of -0.35%/°C matches the PERC 400-450W median
- 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces
- #11574 for efficiency, #10419 for temperature performance out of 14005 panels
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.
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