Light for its output, no clear weak spot
The Astronergy ASTRO N7s CHSM54RNs(DG)/F-BH series is an advanced solution based on n-type TOPCon cells that redefines the concept of efficiency in rooftop installations. Thanks to the use of bifacial technology and double-glass construction, these modules generate additional energy from reflected radiation while exhibiting the highest resistance to corrosive factors. A key distinguishing feature is the use of innovative rectangular cells, which allows for record power density while maintaining compact dimensions. This solves the problem of limited mounting space, enabling investors to achieve higher yields from every square meter of the roof. An exceptionally low temperature coefficient guarantees stable system operation even in full sun, which directly translates into a faster return on investment. This series is dedicated to demanding residential users and commercial facilities where reliability and aesthetics matter. The use of SMBB busbars effectively reduces the risk of micro-cracks and optimizes electron flow, providing a clear advantage over traditional competitor panels. By choosing these modules, you gain increased fire safety and a guarantee of longevity provided by the hermetic double-glass casing, perfectly adapted to the variable climatic conditions in Poland.
Ranking
Signals from the data
Residential, commercial and hot-climate.
Top 20% of the TOPCon 450-500 W segment, against a median of 52.2.
Top 20% of the TOPCon 450-500 W segment, against a median of 225.2.
Top 22% of the TOPCon 450-500 W segment, against a median of 22.52%.
The efficiency range of 22.3–23.3% clearly outperforms comparable models from JS Solar and Jinko Solar JS182MHC120 (21.48%), representing an advantage of 0.82–1.82 percentage points. This translates to meaningfully higher energy yield per m² of roof area without the need to increase the number of modules.
The manufacturer provides a 25-year product warranty and a 30-year power output warranty (≥87.4% Pmax after 30 years), with degradation ≤0.4% per year from year 2 onward. By comparison, the peer-comparable DAH Solar DHN-54R18/DG offers only a 15-year product warranty — a significant difference from an investment protection standpoint.
The Pmax temperature coefficient of -0.29%/°C (N-type TOPCon) is more favorable than that of typical PERC modules (-0.34 to -0.36%/°C). Under Polish summer conditions, with a module temperature of 65°C (Δ40°C above STC), power loss is approximately 11.6% versus 13.6–14.4% for PERC — a real difference in annual energy production.
The glass-glass construction (1.6+1.6 mm tempered glass) provides hermetic protection against moisture and UV degradation, while the bifacial design enables additional yield from reflected irradiance. The SMBB busbars reduce the risk of micro-cracks in the cells and optimize current flow compared to standard multi-busbar solutions.
Astronergy (Chint) holds bankable status according to BloombergNEF and ranked in the top 6 module manufacturers worldwide by production capacity in 2023 (56,000 MW/year). This translates to strong project financing accessibility and reliable long-term serviceability.
The CHSM54RNs(DG)/F-BH series was discontinued in 2025 and superseded by the ASTRO N7s 2.0 with TOPCon 5.0 technology. Limited market availability, the inability to expand an existing installation with identical modules in the future, and potentially restricted access to replacement parts represent real risks for systems that may require scaling.
The double glass construction (1.6+1.6 mm) results in a module weight of 21.5 kg, typically 8–12% heavier than equivalent glass-backsheet modules (~19–20 kg). For larger rooftop installations (e.g., 20+ modules), a structural assessment of the roof load capacity is required, along with selection of mounting hardware certified for this weight class.
- Efficiency of 23.0% matches the TOPCon 450-500W median
- 230.2 W/m² power density - 5.0 W/m² more than TOPCon 450-500W median (225.2 W/m²), more power per roof area
- At -0.29%/°C, hot weather performance is typical for TOPCon 450-500W panels
- Weight of 21.5 kg (2.5 kg below TOPCon 450-500W median of 24.0 kg) allows easier transport and roof mounting
- #1919 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 460 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 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here