--- title: "Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W 460W Solar Panel - Specs & Review | ComparePV" description: "Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W 460W solar panel. Specs: 23.00% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/astronergy-chsm54rns-dg-blh-f-bh-460w" updated: 2026-09-11 --- # Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W Light for its output, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Astronergy - **Model:** CHSM54RNs(DG)(BLH)/F-BH-460W - **Series:** ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH Bifacial Series - **Rated power:** 460 W - **Cell technology:** TOPCon - **Bifacial:** yes ## 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) | 21.5 kg | 24.0 kg | Strong - top 20% | | | 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 | 46.7 | 52.2 | Strong - top 20% | 1,324 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **46.7 kg per kWp** - Top 20% of the TOPCon 450-500 W segment, against a median of 52.2. - **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 and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 33.73 V - **Current at Pmax (Imp):** 13.64 A - **Open-circuit voltage (Voc):** 39.80 V - **Short-circuit current (Isc):** 14.45 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 - **NOCT:** 41 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.5 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 | 1324 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon – Low Temperature Coefficient and Degradation** - The temperature coefficient of Pmax is just -0.29%/°C, with annual degradation after the first year not exceeding ≤0.4% (per manufacturer datasheet). This is a significant advantage over PERC technology (typically -0.35%/°C, ≥0.5%/year), which in Polish climatic conditions — characterized by high temperature variability — translates into measurably higher annual energy yield throughout the system's operational lifetime. - **30-Year Power Warranty – 87.4% After 30 Years** - The manufacturer guarantees ≥87.4% of nominal power output after 30 years of operation. By comparison, the peer-comparable Zonergy ZPM MH3-72, with its lower efficiency (21.16%), does not match this series in terms of long-term investor protection. The warranty is additionally backed by an international insurer (Tier 1 Warranty), further strengthening the credibility of the commitment. - **Bifacial Double Glass – Albedo Gain and Durability** - The Double Glass (glass-glass) construction provides superior mechanical resistance and eliminates the risk of moisture ingress, which is critical over a 30-year operational horizon. The bifacial design generates additional energy yield from reflected irradiance — particularly advantageous on high-reflectivity surfaces (snow, light-colored roofing membrane, gravel) with albedo ≥0.3. - **Tier 1 BNEF – Manufacturer Bankability** - Astronergy appears on the BNEF Tier 1 list and in 2023 ranked among the top 6 global module manufacturers in the BloombergNEF bankability ranking. This status reflects documented financing of projects ≥10 MW by independent commercial banks, reducing counterparty risk in long-term installations. - **ZBB-TF Technology (SMBB) – Reduced Microcracks** - The Zero-Busbar with integrated interconnection technology (ZBB-TF, equivalent to SMBB) improves current conductivity and significantly reduces mechanical stress on cells compared to conventional 5–6-busbar designs. The result is a lower probability of LeTID-related microcracks under cyclic thermal loading, which is typical of Central European climatic conditions. ## Cons - **Discontinued Series – Limited Availability** - The ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH series was discontinued in 2025 (product lifecycle: 2023–2025). This creates difficulties in expanding or repowering an installation with identical modules after several years — differences in Pmp and Voc between new and legacy panels of the same nominal power can reach 1–2% — and manufacturer service support and spare part availability may become limited even in the near term. - **21.5 kg Weight – Reinforced Racking Required** - The Double Glass (glass-glass) construction results in a module weight of 21.5 kg, approximately 15–20% heavier than typical single-glass equivalents (18–19 kg at comparable power output). This may require reinforced mounting structures or a roof load-bearing assessment, generating additional installation costs — particularly on older buildings. ## About this series Astronergy ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH Bifacial Series are advanced modules utilizing **n-type TOPCon** technology, which guarantees higher efficiency and significantly lower annual degradation compared to traditional solutions. The **Double Glass** construction ensures extreme mechanical resistance and excellent protection against moisture, which is key to maintaining the longevity of the installation in the variable Polish climate. This series stands out with the use of innovative rectangular cells, which allow for optimal utilization of the available roof area, offering higher power density while maintaining the compact dimensions of the entire panel. Thanks to its **bifacial** properties, these modules generate additional energy from reflected radiation, which significantly shortens the payback period, especially on surfaces with high albedo. This solution effectively eliminates the problem of limited installation space, delivering more electricity from fewer modules. The applied **SMBB technology** improves current flow and minimizes the risk of micro-cracks, which clearly distinguishes this model from standard competitor products. The N7s series is primarily dedicated to demanding prosumers and companies that care about maximizing profits while maintaining a modern, elegant black frame aesthetic. It is a substantive choice for investors who prioritize innovation and reliability for decades. ## Notable figures - 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 - 21.5 kg weight - 2.5 kg lighter than \*\*TOPCon 450-500W\*\* median (24.0 kg), reducing installation effort - Ranked #1919 out of 14005 panels for efficiency in the database ## Questions ### Is the Astronergy ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH series still available for purchase? The ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH series has been discontinued from active production and is no longer available as a standard line item in new orders. Astronergy has replaced it with newer, higher-output variants under the N7s 2.0 lineup. If this specific series is a firm requirement, it is worth checking stock availability with distributors; however, for new installations we recommend considering the current successor models, which offer improved performance specifications. ### What warranty coverage applies to the Astronergy ASTRO N7s 460W CHSM54RNs(DG)(BLH)/F-BH modules? The manufacturer provides a 25-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. First-year degradation is guaranteed not to exceed 1.0%, with subsequent annual degradation capped at 0.4% per year. After 30 years, the module is warranted to retain at least 87.4% of its nominal rated power. The warranty is backed by an international insurance carrier, providing an additional layer of financial protection for the investment. ### What are the benefits of bifacial technology in the Astronergy ASTRO N7s series, and when does it pay off? Bifacial modules generate electricity simultaneously from both the front and rear surfaces by capturing irradiance reflected off the ground or mounting surface. The N7s series achieves a bifaciality factor of up to 85%, which can yield between 5% and 20% additional energy output depending on the albedo of the surface below. The greatest gains are realized over high-reflectance surfaces such as white gravel, white reflective sheeting, or snow. On conventional pitched roofs with standard roof tiles the bifacial gain is more modest, though still measurable. ### How do the Astronergy ASTRO N7s CHSM54RNs(DG)(BLH)/F-BH modules perform in winter and under overcast conditions? The n-type TOPCon cell technology delivers a power temperature coefficient of -0.29%/°C, resulting in lower thermal losses on hot days and better performance during cooler months compared to conventional p-type cells. Polish winters, characterized by low ambient temperatures, are actually favorable for higher instantaneous module efficiency. Under overcast or diffuse-light conditions, the rectangular cell geometry combined with SMBB (Super Multi-Busbar) interconnection technology helps maintain higher current output than standard module designs. ### How does the Double Glass construction of the ASTRO N7s series differ from a standard backsheet module? Instead of a polymeric backsheet, the module features a second tempered glass panel on the rear, which dramatically improves moisture impermeability and mechanical robustness. This translates to superior resistance to snow loads and wind pressure, as well as the elimination of delamination risk over the module's service life. For the Polish climate — where summer hailstorms and heavy winter snow accumulation are common — Double Glass construction offers a tangible advantage over backsheet designs. An additional benefit is the ability to harvest rear-side irradiance, enabled by the module's bifacial architecture. ### How much does the Astronergy ASTRO N7s 460W module weigh, and can a typical roof structure support it? The module weighs approximately 21.5 kg with overall dimensions of 1762 × 1134 × 30 mm. A typical 10-module installation results in a combined panel weight of roughly 215 kg distributed across nearly 20 m². Standard Polish pitched roofs with rafter-frame construction are engineered with considerable load margins to accommodate snow and wind, well in excess of the panel weight alone. Nevertheless, a structural assessment of the roof framing is advisable prior to installation, particularly on older buildings where the timber may have experienced degradation over time. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/440460ASTRO-N7s_CHSM54RNsDGBLHF-BH_1762113430_EN_20240601-a97e796ffb1d.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, cooler, +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, cooler, +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, cooler, +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, heavier, -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, heavier, -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, heavier, -0.5 pp | --- Source: https://comparepv.com/panel/astronergy-chsm54rns-dg-blh-f-bh-460w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.