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Astronergy Brand review

CHSM54RNs(DG)/F-BH-450W

450 Wp TOPCon Bifacial 2500%
ComparePV verdict

Solid all-round for its segment

Rank 6,123 of 14,129
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 9%
Efficiency (%)
22.50
Typical · median 22.52%
Density (Wp/m²)
225.2
Typical · median 225.2
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
21.5
Typical · median 24.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

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

1,096 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.50% 22.52% Typical 4,281
Power density 225.2 225.2 Typical 4,284
Temperature coefficient -0.290 -0.290 Typical 2,220
Weight per kWp 47.8 52.2 Typical 1,892
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 2 caution
Best for

Residential, commercial and hot-climate.

What owners get
Module Efficiency at the Top of Its Class

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.

25-Year Product Warranty

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.

Low Temperature Coefficient of -0.29%/°C

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.

Bifacial Double Glass with SMBB Technology

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.

BNEF Tier 1 Manufacturer, Top 6 Globally

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.

Trade-offs
Series Discontinued (2025)

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.

Weight of 21.5 kg - Roof Structural Assessment Required

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.

Notes from the database
  • At 22.5% efficiency, this panel is on par with typical TOPCon 450-500W modules
  • At 225.2 W/m² power density, roof space requirements are typical for TOPCon 450-500W panels
  • Temperature coefficient of -0.29%/°C matches the TOPCon 450-500W median
  • At 21.5 kg, this panel is 2.5 kg lighter than TOPCon 450-500W median (24.0 kg) - easier handling during installation
  • In the top 30% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.50 % Typical Segment median 22.52%
Vmpp · Impp 32.94 V · 13.66 A Operating point at max power
Voc · Isc 39.20 V · 14.35 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 21.5 kg Typical Typical · median 24.0 kg
Cells 108 · TOPCon Monocrystalline
Bifaciality 2500 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.043 %/°C
NOCT 41 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 393 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

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 450 Wp appear here. The rest cover the whole series.

30-year linear power warranty degradation curve (n-type/p-type DG warranty) 30-year linear power warranty degradation curve (n-type/p-type DG warranty) Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Astronergy CHSM54RNs(DG)/F-BH-450W 450 W 22.50% -0.290 21.5 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +45 W, cooler, +2.3 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +40 W, cooler, +2.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +2.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +2.0 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +2.0 pp
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, heavier, +2.0 pp
CHSM48RN(DG)/F-BH-440 440 W 22.00% -0.290 24.5 kg -10 W, heavier, -0.5 pp
CHSM48RN(DG)/F-BH-445 445 W 22.30% -0.290 24.5 kg Heavier
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +60 W, cooler, +2.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +55 W, cooler, +2.2 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +55 W, heavier, +2.2 pp

Found 1402 panels of the same or similar size to this one, within ±10 mm. See them here Found 1432 panels of the same or similar size to this one, within ±25 mm. See them here Found 3651 panels of the same or similar size to this one, within ±50 mm. See them here Found 3999 panels of the same or similar size to this one, within ±100 mm. See them here

About the ASTRO N7s CHSM54RNs(DG)/F-BH Bifacial Series series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

Is the Astronergy ASTRO N7s CHSM54RNs(DG)/F-BH series still available for purchase?
The ASTRO N7s CHSM54RNs(DG)/F-BH series has been discontinued and is no longer actively offered by distributors. Isolated units may still exist in warehouse stock; however, availability is extremely limited. If you are looking for n-type TOPCon bifacial modules with comparable specifications, it is worth considering newer Astronergy series such as the ASTRO N7s 2.0, which deliver even higher efficiency and are covered by full warranty support.
What warranty is provided for the Astronergy ASTRO N7s CHSM54RNs(DG)/F-BH panels?
The manufacturer provides a 25-year product workmanship warranty on the module and a 30-year linear power output warranty, under which the panel retains at least 87.4% of its nominal power. The Astronergy warranty is additionally insured by an independent international insurer, providing financial protection even in the event of potential manufacturer insolvency.
How much additional energy does the bifacial Astronergy ASTRO N7s panel generate from its rear side?
Bifacial technology allows the rear side of the module to harvest irradiance reflected from the ground or rooftop surface. In typical rooftop installations with a light-colored surface or ground-mounted systems with an albedo of approximately 0.25, the bifacial gain is generally 5-15% per year relative to a monofacial panel. The actual yield gain depends on the mounting tilt angle, surface color, and local solar irradiation conditions, and should therefore be factored into the system design.
Are the Astronergy ASTRO N7s CHSM54RNs(DG)/F-BH panels suitable for pitched-roof installations in the Polish climate?
Yes, modules measuring 1762 × 1134 × 30 mm with a weight of 21.5 kg perform well on typical pitched roofs in Poland. The double-glass construction using 1.6+1.6 mm tempered glass provides mechanical resistance of up to 5400 Pa on the front face, reliably handling the snow loads characteristic of Polish winters. The n-type TOPCon technology ensures low temperature-related losses, which is particularly relevant during summer months.
How does the Astronergy ASTRO N7s panel perform in hot weather - does it lose a significant amount of power?
The n-type TOPCon cells used in the ASTRO N7s series feature an exceptionally low temperature coefficient of power (Pmax), meaning they experience smaller losses compared to conventional PERC panels. As cell temperature rises above 25 °C, the module loses proportionally less power than older p-type technologies. In practice, during Polish summers this translates to higher daily energy yields in the warmest months of the year.
What distinguishes the double-glass construction of the Astronergy ASTRO N7s series, and why does it matter for long-term durability?
Instead of a standard polymeric backsheet, a second pane of tempered glass is used, which eliminates moisture ingress and significantly reduces the risk of cell delamination. The double-glass enclosure is resistant to corrosion and UV degradation throughout the entire 30-year power warranty period. For installations in the Polish climate - where modules are exposed to large diurnal temperature swings and precipitation - this is a meaningful advantage that directly translates into extended system longevity.
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