Solid all-round for its segment
The Astronergy ASTRO N5 CHSM78N(DG)/F-BH series panels represent an advanced solution based on N-type TOPCon cell technology, which effectively eliminates the problem of light-induced degradation. Due to the bifacial design with double glass, these modules maximize energy yields by absorbing radiation reflected from the ground, making them an ideal choice for large solar farms and demanding commercial installations. The application of multilayer Double Glass protection significantly enhances mechanical resistance to extreme weather conditions, such as strong winds or snow loads, while simultaneously extending the system's overall lifespan. A distinguishing feature of this series is its exceptionally low temperature coefficient, ensuring stable operation and high efficiency even on hot days when traditional modules lose power. This solution addresses the needs of investors looking to maximize the rate of return through higher efficiency in low-light conditions and minimized transmission losses. Compared to standard P-type modules, the ASTRO N5 series offers a slower performance decline over time, translating into real profits over long-term operation. It is a solid choice for professionals prioritizing technical innovations that directly reduce the lowest levelized cost of energy LCOE in large-scale projects.
Ranking
Signals from the data
Utility-scale, commercial and hot-climate.
A Pmax temperature coefficient of -0.29%/°C places this series well above P-type PERC modules (typically -0.34 to -0.35%/°C). In practice, this translates to approximately 2–3% higher power output on sunny days at a cell temperature of 70°C compared to previous-generation modules.
The manufacturer guarantees 99% of rated power after year 1, 87.4% after 25 years, and 84.95% after 30 years at a degradation rate of ≤0.4%/year. Peer comparables such as BYD AURO N and Einnova offer similar terms; however, many smaller suppliers in this segment cap their warranty at 25 years — making Astronergy a clear standout.
Astronergy ranks in the top six of the BloombergNEF bankability index, directly facilitating project financing from banks and infrastructure funds. For large-scale PV projects, BNEF Tier 1 status is frequently a prerequisite for securing project finance.
The bifacial dual-glass construction provides a certified mechanical load resistance of 5,400 Pa — equivalent to approximately 3.2 m of snow cover or wind speeds exceeding 220 km/h — surpassing the requirements of most temperate-climate sites and meeting the standard expected for utility-scale installations.
N-type cells virtually eliminate light-induced degradation (LID) characteristic of P-type PERC, while susceptibility to light and elevated temperature induced degradation (LeTID) is significantly lower. This results in meaningfully higher energy production during the initial months of operation compared to P-type modules of nominally equivalent STC power rating.
The highest-efficiency variant in the series reaches 23.3%, while its direct peer — the Jinko Solar Tiger Neo 66HL4M-BDX — offers 24.06% at the same power class (up to 650 Wp). The 0.76 percentage point gap may require installing 1–2 additional modules per 100 kWp in space-constrained applications to achieve the same energy yield.
The dual-glass construction results in a module weight of 34.7 kg (approx. 12.4 kg/m²), roughly 20–25% heavier than comparable single-glass modules of similar power. On rooftop installations over older structures, this may necessitate a structural engineering assessment and potential roof reinforcement, adding to the overall project cost.
- At 23.1% efficiency, this panel is on par with typical TOPCon 600-650W modules
- At 230.7 W/m² power density, this panel generates 3.0 W/m² more per unit area than TOPCon 600-650W median (227.7 W/m²)
- At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
- At 34.7 kg (2.0 kg above TOPCon 600-650W median of 32.7 kg), requires checking roof load capacity
- #1570 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 645 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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