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Astronergy CHSM78N(DG)/F-BH 650W
Astronergy Brand review

CHSM78N(DG)/F-BH 650W

650 Wp TOPCon Bifacial 80%
ComparePV verdict

Solid all-round for its segment

Rank 1,318 of 14,005
Compare panels Datasheet PDF
Power (Wp)
650
Weak · bottom 13%
Efficiency (%)
23.30
Typical · median 22.40%
Density (Wp/m²)
232.5
Typical · median 223.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
34.7
Typical · median 34.6 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Astronergy ASTRO N5 (Bifacial Series) is designed to maximize yields where every additional kilowatt-hour counts, effectively harnessing reflected light from the ground thanks to its dual-sided operation. A key feature is n-type TOPCon 4.0 technology, which ensures stable performance over time and minimizes typical losses found in older solutions, leading to a more predictable energy yield throughout the installation's lifespan. Furthermore, the bifacial design enhances results in projects on bright rooftops, membranes, and high-albedo grounds.

In practice, ASTRO N5 helps reduce energy costs in C&I and utility-scale projects by combining high power density with solutions that improve reliability, such as SMBB, supporting better current collection and greater resistance to micro-cracking. Its advantage in challenging conditions is also the optimized temperature coefficient, enabling the modules to maintain better performance in hot weather. This is the series for investors focused on real-world gains and reliable operation, not just catalog specifications.

Ranking

249 panels in the segment TOPCon 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.30% 22.40% Typical 1,017
Power density 232.5 223.7 Typical 1,222
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 53.4 53.2 Typical 7,283
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 · 1 caution
Best for

Commercial, utility-scale and hot-climate.

What owners get
Low degradation: ≤0.4%/year over 30 years

The manufacturer's warranty guarantees ≤1.0% degradation in the first year and ≤0.4%/year in years 2-30, which translates to maintaining a minimum of 84.95% of the nominal power after 30 years. This is better than the standard 25-year warranties offered by some comparable products (e.g., Einnova Solarline), and is comparable to those offered by leading brands.

Temperature coefficient <-0.29%/°C

The n-type TOPCon 4.0 technology allows for a temperature coefficient below -0.29%/°C for Pmax – better than typical PERC modules (-0.34 to -0.36%/°C). In practice, this means a significantly higher power output on hot, sunny days, which is crucial for C&I installations in continental climates.

Tier-1 bank with strong credit rating, ranked 6th by BNEF

Astronergy is ranked among the top 6 module manufacturers according to the BloombergNEF bankability ranking (2023) and maintains Tier-1 status in subsequent assessments, including Q1 2026. With a production capacity of 56,000 MW (Q2 2025), it facilitates the financing of PV farm and C&I projects without the additional security requirements associated with less established manufacturers.

30-year power warranty

The manufacturer offers a 30-year linear warranty (at least 84.95% after 30 years) along with a 15-year product warranty. A comparable product from Einnova Solarline offers the same range, but Jinko Solar Tiger Neo series 66HL4M-BDX is limited to 25 years in standard – the longer warranty offered by Astronergy reduces investment risk for long-term projects.

Bifacial + SMBB for increased efficiency

The bifacial (two-sided) design allows for an additional 5–30% energy yield from reflected light, depending on the surface albedo (light gray gravel, membrane, sandy soil). The SMBB (Semi-Multi-Busbar) technology reduces the internal resistance of the cell and increases its resistance to microcracks, which directly translates into improved energy yield stability throughout the lifespan of the installation.

Trade-offs
Efficiency of 23.3% compared to the segment leader's 24.06%

The maximum efficiency of the module is 23.3%, while a comparable Jinko Solar Tiger Neo 66HL4M-BDX module achieves 24.06% at the same 650 Wp power class. A difference of 0.76% in efficiency means that Jinko packs the same power onto approximately 3.2% less surface area – a significant advantage when installing on space-constrained roofs, where every square meter translates into installed kilowatts.

Notes from the database
  • Efficiency of 23.3% is 0.9pp above the TOPCon 650-700W median (22.4%)
  • 232.5 W/m² power density - 8.8 W/m² more than TOPCon 650-700W median (223.7 W/m²), more power per roof area
  • At -0.29%/°C, hot weather performance is typical for TOPCon 650-700W panels
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • In the top 7% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 650 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.30 % Typical Segment median 22.40%
Vmpp · Impp 48.20 V · 13.49 A Operating point at max power
Voc · Isc 57.28 V · 14.26 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×30 mm · 2.80 m² of roof
Weight 34.7 kg Typical Typical · median 34.6 kg
Cells 156 · TOPCon Monocrystalline
Bifaciality 80 % 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
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 568 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 650 Wp appear here. The rest cover the whole series.

30-year Linear Degradation Warranty Curve (n-type vs p-type) 30-year Linear Degradation Warranty Curve (n-type vs p-type) 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 CHSM78N(DG)/F-BH 650W 650 W 23.30% -0.290 34.7 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +1.9 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +30 W, lighter, +1.9 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +1.7 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.7 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +50 W, cooler, +1.7 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +45 W, cooler, +1.6 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +1.5 pp
CHSM78N(DG)/F-BH-625W 625 W 22.40% -0.290 34.7 kg -25 W, -0.9 pp
CHSM78N(DG)/F-BH-630 630 W 22.50% -0.290 34.7 kg -20 W, -0.8 pp
CHSM78N(DG)/F-BH-635 635 W 22.70% -0.290 34.7 kg -15 W, -0.6 pp
CHSM78N(DG)/F-BH-640 640 W 22.90% -0.290 34.7 kg -10 W, -0.4 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +1.5 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg Cooler, lighter, +1.5 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty coverage is provided for the Astronergy ASTRO N5 Bifacial series?
The ASTRO N5 Bifacial series comes with a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. After the first year, the module retains at least 99% of its nominal power; after 30 years, the guaranteed output floor is 87.4%. Annual degradation from year 2 onward is capped at 0.4%, placing it among the lowest degradation rates in the n-type module segment. Astronergy is a Tier 1 manufacturer, and the warranty is backed by an international insurance provider.
Do the ASTRO N5 Bifacial panels perform well during summer heat waves?
Yes, the ASTRO N5 Bifacial series handles elevated temperatures more effectively than older PERC modules. The power temperature coefficient is only -0.29%/°C, meaning power losses remain modest even when the module reaches high operating temperatures. For comparison, typical p-type modules exhibit coefficients between -0.35% and -0.40%/°C. In practice, this translates into measurably higher energy yield on hot days — a particularly significant advantage for industrial rooftop systems and utility-scale PV farms operating year-round.
What is the TOPCon 4.0 technology used in the ASTRO N5, and is the premium price justified?
TOPCon 4.0 is an n-type cell architecture featuring a thin tunnel oxide passivation layer that suppresses carrier recombination. The result is a module efficiency of up to 23.3% and a slower degradation rate compared to conventional PERC cells. Astronergy's 4.0 generation additionally integrates SMBB (Super Multi Busbar) technology, which improves current collection efficiency and enhances resistance to microcracks. For the system owner, this means more energy harvested from the same roof area and more predictable performance over a 30-year operational lifetime — making the incremental cost difference justifiable on a levelized cost of energy (LCOE) basis.
Do the ASTRO N5 Bifacial panels genuinely produce more energy, and when does bifaciality make practical sense?
Yes, though the energy gain depends heavily on the albedo of the surface beneath the array. The highest bifacial yield gains are achieved in ground-mounted systems installed over light-colored gravel or reflective membranes, white or light gray rooftops, and agrivoltaic (agro-PV) applications. Under typical conditions, the effective capture of reflected irradiance can deliver an additional 5–15% annual energy yield compared to a monofacial module of equivalent rated power. On dark bituminous rooftops, the bifacial gain is negligible, which is why bifacial modules deliver their strongest return on investment in commercial & industrial (C&I) and utility-scale PV projects.
How much does the Astronergy ASTRO N5 650W panel weigh, and can a standard roof structure support it?
The ASTRO N5 650 Wp module measures 2465 × 1134 × 30 mm and weighs approximately 34.7 kg. This module is intended primarily for industrial rooftop installations and ground-mounted PV farms, where professional steel or aluminum racking structures are used. For residential pitched roofs, the smaller models within the same series — rated at 585–605 Wp and weighing approximately 31 kg — are generally a better fit. Regardless of the model selected, a structural assessment by a licensed structural engineer is always recommended before installation.
Are the Astronergy ASTRO N5 Bifacial panels compatible with widely available inverters and mounting systems on the Polish market?
Yes, the ASTRO N5 Bifacial series is fully compatible with all standard string inverters and microinverters available on the market, including SMA, Fronius, Huawei, SolarEdge, and Growatt. MC4 connectors ensure compatibility with conventional DC cabling systems. The modules are certified to IEC 61215 and IEC 61730 and comply with the standards required under Polish construction and energy regulations. The standard aluminum frame dimensions are compatible with the majority of rail-based mounting systems carried by Polish distributors.
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