Middle of its segment, needs the roof space
The Astronergy ASTRO N8 CHSM66N(DG)/F-BH module series is an advanced solution based on n-type TOPCon cell technology, which redefines efficiency standards in the Polish climate. Thanks to the elimination of the LID degradation phenomenon and a significant reduction in the impact of temperature on system operation, these panels ensure stable energy production for decades. A key differentiator is the bifacial double glass design, which allows for light absorption from both sides of the module, drastically increasing yields on ground-mounted installations and roofs covered with bright membranes. This series solves the problem of limited installation space, offering increased power density through the use of modern rectangular cells. It is a product dedicated to demanding commercial investments and solar farms where the lowest levelized cost of energy (LCOE) matters most. What sets it apart from the competition is its exceptional efficiency in low-light conditions and heavy-duty resistance to mechanical loads, which guarantees investment security in harsh weather conditions. By choosing ASTRO N8, investors receive high resistance to material aging effects, which translates into tangibly higher profits compared to standard p-type modules available on the market. It is an uncompromising combination of double-glass durability with the latest generation of n-type silicon.
Ranking
Signals from the data
Commercial and utility-scale.
Roofs where every square metre has to count, weight-limited structures and tight roof space.
Bottom 21% of the TOPCon 700-750 W segment, against a median of 230.2.
Bottom 23% of the TOPCon 700-750 W segment, against a median of 52.9.
Bottom 23% of the TOPCon 700-750 W segment, against a median of 23.00%.
The upper efficiency limit of 23.5% places the series on par with the strongest competitors in the segment (Waaree HJT 23.5%, HY Solar TOPCon 23.5%), while Astronergy delivers this figure within a confirmed BNEF Tier-1 manufacturing framework — a distinction that cannot be taken for granted with less established peer comparables such as HY Solar and PolyCrown.
The N-type TOPCon cell architecture achieves a Pmax temperature coefficient of -0.28%/°C, compared to -0.34 to -0.37%/°C typical of standard PERC modules. In Polish climatic conditions, where module temperatures reach 60–70°C during summer, this translates to a real-world hourly energy yield gain of 2–3% over PERC at peak summer output.
The manufacturer guarantees ≥87.4% of nominal power output after 30 years of operation, which represents the premium standard for large-format bifacial modules. The warranty is backed by an international insurance policy, materially reducing the investor's financial risk over the long-term project horizon.
The double-glass design (2+2 mm) combined with ~80 ±5% bifaciality enables an additional 15–25% energy harvest from the rear side of the module in ground-mount installations with high-albedo surfaces or on rooftops with white TPO/PVC membranes. The rear glass layer also eliminates PID-related degradation and extends laminate service life compared to conventional backsheet designs.
Astronergy maintains continuous BNEF Tier-1 status (confirmed Q1 2026), ranking in the global top 6 among module manufacturers according to the BNEF 2023 ranking. This significantly facilitates project finance and non-recourse lending for utility-scale PV plants, where manufacturer bankability is a formal prerequisite imposed by lenders.
The double-glass construction raises module weight to 38 kg — approximately 6–8 kg more than comparable single-glass modules in the same power class (~30–32 kg). For rooftop installations, this necessitates structural roof load verification and the use of heavier-duty racking rails, adding incremental balance-of-system (BoS) cost.
A 15-year product warranty is the market norm among Chinese Tier-1 manufacturers, yet it falls short of the coverage offered by European and Korean premium players (e.g., REC Group: 25 years, Maxeon: 25 years). For projects with an investment horizon of 25 years or more, this gap may necessitate supplemental warranty insurance.
- At 22.7% efficiency, this panel is on par with typical TOPCon 700-750W modules
- At 226.9 W/m², this panel generates 3.2 W/m² less per unit area than TOPCon 700-750W median (230.2 W/m²)
- Temperature coefficient of -0.29%/°C matches the TOPCon 700-750W median
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
- #3307 for efficiency, #2165 for temperature performance out of 14005 panels
Specifications
Datasheet charts
Measured curves published by Astronergy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 705 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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