--- title: "Astronergy CHSM48RN(DG)/F-BH-460 460W Solar Panel - Specs & Review | ComparePV" description: "Astronergy CHSM48RN(DG)/F-BH-460 460W solar panel: 1 shop offer from 75.24 €. Specs: 23.00% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-460" updated: 2026-10-04 --- # Astronergy CHSM48RN(DG)/F-BH-460 Space saver, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Astronergy - **Model:** CHSM48RN(DG)/F-BH-460 - **Series:** ASTRO N7s 2.0 (CHSM48RN(DG)/F-BH) - **Rated power:** 460 W - **Cell technology:** TOPCon - **Bifacial:** yes ## Price offers Prices are the figure each shop printed, on that shop's side of VAT. | Shop | Market | Price | Per kWp | Availability | Last read | | --- | --- | --- | --- | --- | --- | | [solarvic.at](https://comparepv.com/go/185960) | Austria | 75.24 € net | 163.57 €/kWp | In stock | Last read 5 Oct 01:13 | ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 465 W | Typical | | | Module efficiency | 23.00% | 22.52% | Strong - top 22% | 1,919 | | Power density | 230.2 | 225.2 | Strong - top 20% | 1,876 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.5 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.00% | 22.52% | Strong - top 22% | 1,919 | | Power density | 230.2 | 225.2 | Strong - top 20% | 1,876 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 53.3 | 52.2 | Typical | 7,102 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **230.2 watts per square metre** - Top 20% of the TOPCon 450-500 W segment, against a median of 225.2. - **23.00% module efficiency** - Top 22% of the TOPCon 450-500 W segment, against a median of 22.52%. - **Best for:** Residential, commercial, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 30.60 V - **Current at Pmax (Imp):** 15.03 A - **Open-circuit voltage (Voc):** 36.74 V - **Short-circuit current (Isc):** 15.88 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.043 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 2.00 m2 - **Power density:** 230.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 402 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1919 of 14005 | | Power density | 1876 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 7102 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency up to 23.8% – on par with top-tier competitors** - The 475 Wp variant achieves 23.8% module efficiency, matching the JA Solar JAM54D40 LB and Sun Earth TITAN Dual Glass. This places it among the leading performers in the 48-cell, 182 mm format segment, delivering more kWh per m² of roof area. - **Low temperature coefficient: –0.29%/°C** - The n-type TOPCon 5.0 cells limit power loss at elevated temperatures to –0.29%/°C, versus the typical –0.35%/°C of legacy PERC cells. The 0.06 percentage-point/°C advantage translates to approximately 2–3% higher energy yield during summer operation at a cell temperature of 60°C. - **30-year power output warranty, degradation ≤0.4%/year** - The manufacturer guarantees ≥87.4% of rated power after 30 years, with linear degradation ≤0.4%/year (years 2–30) and ≤1.0% in year one. Comparable peers such as JA Solar and LONGi typically offer 25-year warranties or similar terms with a lower end-of-life power floor. - **Double-glass construction + ZBB for long-term durability** - The 2.0+2.0 mm dual-glass design eliminates the rear backsheet, which is susceptible to cracking and delamination, while Zero Busbar (ZBB) technology reduces thermal stress on cells and lowers interconnect resistance. The result is enhanced resistance to microcracks and moisture ingress over decades of field operation. - **Astronergy – BNEF Tier 1, bankable manufacturer** - Astronergy (Chint Group, est. 2006) maintains uninterrupted Tier 1 status per BloombergNEF and appears on the bankable manufacturers list as of Q1 2026. This confirms lender acceptance of the modules in project-finance transactions without recourse — a critical consideration for debt-financed PV installations. ## Cons - **Higher weight: ~24.5 kg (double glass)** - The dual-glass construction increases module weight to approximately 24.5 kg, compared to ~21–22 kg for typical single-glass modules of equivalent power class. This may necessitate a structural assessment of older roof frameworks and complicates single-person installation, particularly on steep-pitch roofs. ## About this series Astronergy ASTRO N7s 2.0 (CHSM48RN(DG)/F-BH) modules are designed for maximum yield from limited rooftop space - without compromising on aesthetics and durability. The application of **n-type TOPCon 5.0** cells helps maintain high efficiency even in real-world conditions, not just under ideal sunlight, translating to more stable performance throughout the year. A key feature is the **ZBB (zero busbar) technology**, which minimizes losses due to shading and connection resistance, supporting better module reliability over the long term. The **double-glass** variant enhances resistance to environmental factors and micro-cracking, which is appreciated by investors prioritizing long-term, trouble-free operation. Thanks to the **black light redirecting film**, the module achieves a more uniform black appearance while improving light management within the panel structure. This is a smart choice for residential and premium segments, where both performance and discreet roof integration matter. ## Notable figures - Efficiency of 23.0% matches the \*\*TOPCon 450-500W\*\* median - Power density of 230.2 W/m² packs 5.0 W/m² more into the same footprint vs \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 450-500W\*\* median - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - #1919 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What warranty is offered on the Astronergy ASTRO N7s 2.0 (CHSM48RN(DG)/F-BH) panels? The ASTRO N7s 2.0 series comes with a 25-year product warranty covering material and workmanship defects. In addition, the manufacturer provides a 30-year linear power output warranty, guaranteeing at least 87.4% of nominal power after that period. This is one of the longest power warranties available in the premium module segment, protecting the investment across the full operational lifespan of a typical residential prosumer installation. ### What is ZBB technology in the ASTRO N7s 2.0 panels, and does it genuinely improve performance? ZBB (Zero Busbar) eliminates conventional busbars on the cell in favor of multiple thin current-collection pathways. This shortens the current flow path, reduces interconnection resistance, and minimizes losses caused by shading of individual conductors. The result is improved long-term reliability and a measurable gain in energy yield under partial shading conditions — a practical benefit for rooftops with chimneys, dormers, or other obstructions. ### Is the ASTRO N7s 2.0 475 W panel suitable for a standard pitched roof on a single-family home? Yes. The module dimensions are 1762 × 1134 × 30 mm and it weighs 24.5 kg, which falls within the handling capabilities of standard installation crews and typical roof structures. The double-glass construction (glass-glass, 2+2 mm) withstands front-side mechanical loads up to 6,000 Pa, making it suitable for rooftops exposed to high winds or heavy snow accumulation. It is nevertheless advisable to commission a professional system design to verify the structural load capacity of the specific roof surface. ### Is the ASTRO N7s 2.0 module bifacial, and does that make sense on a pitched roof? Yes, the CHSM48RN(DG)/F-BH series is a bifacial module with a bifaciality factor of up to 87.4%, meaning the rear glass can generate additional energy from diffuse albedo irradiance. On pitched rooftops, the rear-side gain is typically modest — a few percentage points — however, the double-glass construction inherently increases durability and resistance to microcracks. On a sloped roof, the bifacial design is therefore primarily an investment in panel longevity rather than a significant yield booster. ### How do the Astronergy ASTRO N7s 2.0 panels perform in overcast conditions and low temperatures? The n-type TOPCon 5.0 technology features a low power temperature coefficient of -0.29%/°C, resulting in smaller power losses at elevated summer temperatures compared to legacy p-type modules. Under overcast skies, the module benefits from the characteristically strong low-light response of TOPCon cells. In practice, this translates to a more stable annual energy yield in the Polish climate, where a high proportion of cloudy days is typical throughout the year. ### What distinguishes the Astronergy ASTRO N7s 2.0 from the earlier ASTRO N7s (without the 2.0 designation)? The 2.0 version introduces TOPCon 5.0 cells in place of the previous 4.0 generation, pushing module efficiency into the 22.5–23.8% range. A black light redirecting film has been added, providing a uniform black aesthetic and improving light management within the module's internal structure. The proven ZBB technology and double-glass construction are retained, while maximum power output has been increased to 475 Wp in the 48-cell configuration, delivering higher energy yield from the same roof area. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/450475astro-n7s-2-0-chsm48rndgf-bh-1762-1134-30-2-0-glass-en-cd75a4fbe0f0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +35 W, lighter, +1.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +30 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +40 W, cooler, +1.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +40 W, lighter, +1.5 pp | | [Astronergy CHSM48RN(DG)/F-BH-440](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-440) | 440 W | -20 W, -1.0 pp | | [Astronergy CHSM48RN(DG)/F-BH-445](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-445) | 445 W | -15 W, -0.7 pp | | [Astronergy CHSM48RN(DG)(BLH)/F-BH-450](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-blh-f-bh-450) | 450 W | -10 W, -0.5 pp | --- Source: https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-460 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.