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Astronergy CHSM54N-HC-445W
Astronergy Brand review

CHSM54N-HC-445W

445 Wp TOPCon
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 8,168 of 14,005
Compare panels Datasheet PDF
Power (Wp)
445
Strong · top 8%
Efficiency (%)
22.80
Strong · top 1%
Density (Wp/m²)
227.9
Strong · top 2%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
21.3
Strong · top 19%
Warranty (yrs)
30
Typical · median 30 yrs

The Astronergy ASTRO N5s (CHSM54N-HC) Monofacial 425-445W series was designed for maximum yield on limited roof surfaces, without complicating the installation project. The use of N-type monocrystalline cells in TOPCon technology ensures stable performance over the long term and reduced sensitivity to typical degradation phenomena, which can lower energy production over subsequent seasons. Thanks to its half-cut construction, the module performs better under real-world conditions-partial shading and uneven irradiance.

This is an excellent solution for investors seeking high energy production on residential, commercial, and public building rooftops, where every square meter counts. The series also features an advanced, modern glass-backsheet structure, simplifying installation and fitting seamlessly with popular roofing systems. In practice, you get a module optimized for high long-term operational efficiency and predictable energy output, setting it apart from many competitive panels based on outdated solutions.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.80% 22.00% Strong · top 1% 2,714
Power density 227.9 220.2 Strong · top 2% 2,790
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 47.9 51.4 Strong · top 19% 1,948
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

8 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Strengths
22.80% module efficiency

Top 1% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 2,714th in the whole database.

227.9 watts per square metre

Top 2% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 2,790th in the whole database.

47.9 kg per kWp

Top 19% of the TOPCon 400-450 W segment, against a median of 51.4.

What owners get
Highest efficiency within the comparison group

The maximum efficiency of 22.8% surpasses all comparable products: Q-Cells Q.TRON BLACK (22.3%), Solitek SOLRIF D Satin (22.06%), and SunEvo SE6-46SC EVOX (21.4%). This translates to a significantly higher energy yield from a limited roof area – the advantage over SunEvo is more than 1.4 percentage points.

Low thermal expansion coefficient (-0.29%/°C)

The Pmax coefficient at -0.29%/°C is better than typical PERC modules (-0.35%/°C), resulting in lower production losses on hot days – a difference of 6-10% in losses for every 10°C above STC. This is particularly significant in Poland's climate during the summer months.

TOPCon N-type: degradation ≤0.4%/year

N-type TOPCon cells exhibit an annual degradation of ≤0.4% (over 2-30 years), compared to ≤1.0% in the first year, guaranteeing ≥87.4% of their nominal power after 30 years. PERC modules typically degrade by 0.45-0.55%/year, which results in a real difference of 2-4% after 30 years.

30-year power output warranty

A 30-year linear warranty on power output (≥87.4% after 30 years) is one of the longest industry standards in the residential segment. Furthermore, the warranty is insured by an external, international insurance company, which minimizes the risk of it being lost in the event of financial difficulties for the manufacturer.

Tier 1 BNEF – Top 6 globally

Astronergy maintains a Tier 1 BNEF bankability rating and ranked in the top 6 global module manufacturers in the 2023 BloombergNEF ranking. With a production capacity of 56 GW (by Q2 2025), the company ensures stable supply and long-term service support.

Trade-offs
Product warranty is only 15 years.

The product warranty is 15 years, while the direct competitor, Q-Cells Q.TRON BLACK, typically offers a standard 25-year product warranty. In the event of a mechanical failure of the module after 15 years of operation, the investor is responsible for the full cost of replacement.

Notes from the database
  • At 22.8% efficiency, this panel is 0.8pp above typical TOPCon 400-450W modules (median: 22.0%)
  • At 227.9 W/m² power density, this panel generates 7.7 W/m² more per unit area than TOPCon 400-450W median (220.2 W/m²)
  • Temperature coefficient of -0.29%/°C matches the TOPCon 400-450W median
  • In the top 19% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 445 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.80 % Strong Segment median 22.00%
Vmpp · Impp 32.77 V · 13.58 A Operating point at max power
Voc · Isc 39.00 V · 14.41 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 21.3 kg Strong Strong · top 19%
Cells 108 · TOPCon Monocrystalline
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 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 389 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 445 Wp appear here. The rest cover the whole series.

Linear Power Warranty Degradation Linear Power Warranty Degradation 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
-

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
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Astronergy CHSM54N-HC-445W 445 W 22.80% -0.290 21.3 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +50 W, cooler, +2.0 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +45 W, cooler, +1.7 pp
STP-NT11/48QGSF-490 490 W 24.50% -0.260 21.5 kg +45 W, cooler, +1.7 pp
JAT54S40-485/LR 485 W 24.30% -0.260 19.3 kg +40 W, cooler, +1.5 pp
AIKO-A485-MCE54Mw 485 W 24.30% -0.260 21.0 kg +40 W, cooler, +1.5 pp
LR7-54HJD-495M 495 W 24.30% -0.240 23.5 kg +50 W, cooler, +1.5 pp
AIKO-A485-MAH54Mw 485 W 24.30% -0.260 21.5 kg +40 W, cooler, +1.5 pp
CHSM54N(BL)-HC / CHSM54N(BLH)-HC (420W class) 420 W 21.50% -0.290 21.3 kg -25 W, -1.3 pp
CHSM54N(BL)-HC / CHSM54N(BLH)-HC (425W class) 425 W 21.80% -0.290 21.3 kg -20 W, -1.0 pp
CHSM54N(BL)-HC / CHSM54N(BLH)-HC (430W class) 430 W 22.00% -0.290 21.3 kg -15 W, -0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +65 W, cooler, +2.2 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +60 W, cooler, +1.9 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +55 W, cooler, +1.7 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +55 W, cooler, +1.7 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty is offered on the Astronergy ASTRO N5s CHSM54N-HC panels?
The ASTRO N5s series comes with a 15-year product warranty covering material and workmanship defects, as well as a 30-year linear power output warranty. After 30 years of operation, the panel is guaranteed to retain at least 87.4% of its original rated power. These are standard terms for Tier 1 modules, and Astronergy backs them with an international insurance policy.
Is the Astronergy ASTRO N5s 445W suitable for a typical pitched roof on a single-family home?
Yes. The ASTRO N5s series, with dimensions of 1722×1134×30 mm and a weight of approximately 21.3 kg, is well suited for pitched-roof installations. A single installer can handle the panel independently during mounting. The glass-backsheet construction is compatible with popular racking systems, and the 54-cell half-cut layout minimizes power losses under partial shading from chimneys or dormers.
What is TOPCon technology and why should it be chosen over standard PERC?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that uses an additional passivation layer to reduce charge carrier recombination. In practice, this results in higher module efficiency (up to approximately 23% in the N5s series) and a better temperature coefficient of no more than -0.29%/°C, compared to the typical -0.35%/°C for standard PERC modules. As a result, the panel loses significantly less power on hot summer days.
How much energy can a system built from Astronergy ASTRO N5s 445W panels produce annually?
Actual energy yield depends on the installation location, roof tilt angle, and any shading present. As a general estimate, a single 445W panel in Poland will produce approximately 400–500 kWh per year under optimal orientation. A 10-panel system (4.45 kWp combined) can cover the annual consumption of a typical household using 4,000–5,000 kWh per year. TOPCon modules also deliver better yields under diffuse light conditions compared to older technologies.
Does the ASTRO N5s CHSM54N-HC panel perform effectively in winter and during overcast weather?
Yes. N-type TOPCon cells feature a low Pmax temperature coefficient of -0.29%/°C, which means that in winter, when the panel operating temperature is low, the module can temporarily exceed its nominal rated power. This technology also performs better under weak, diffuse light compared to PERC modules — an important advantage in the Polish climate, where overcast days account for a significant portion of the year.
How does the Astronergy ASTRO N5s series differ from this manufacturer's older PERC modules?
The key difference lies in the cell type: the ASTRO N5s uses N-type TOPCon cells instead of P-type PERC. This translates to higher module efficiency (up to 23.02% vs. the typical 20–21% for PERC), reduced initial light-induced degradation (LID), and improved performance at elevated temperatures. The N5s series achieves a maximum power output of 445W in a footprint similar to previous models, delivering greater energy yield from the same roof area.
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