--- title: "Astronergy CHSM54RNs(DG)(BLH)/F-BH-460 460W Solar Panel - Specs & Review | ComparePV" description: "Astronergy CHSM54RNs(DG)(BLH)/F-BH-460 460W solar panel. Specs: 23.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/astronergy-chsm54rns-dg-blh-f-bh-460" updated: 2026-09-11 --- # Astronergy CHSM54RNs(DG)(BLH)/F-BH-460 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-460 - **Series:** ASTRO N7s - **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 hot-climate. ## 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 - **Bifacial gain:** 25.00 ### 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 - **Best-in-Class Efficiency** - The series achieves module efficiency of up to 23.3%, outperforming direct competitors: the DAH DHN-54R18 (22.78%) by approximately 0.5 percentage points and the JS Solar/Jinko JS182MHC120 (21.48%) by nearly 2 percentage points. In practice, this translates to higher energy yield per m² of roof area. - **Zero Busbar + N-Type TOPCon — Reduced Losses** - Zero Busbar (ZBB) technology eliminates conventional busbars, reducing cell-front shading and series resistance. Combined with N-type TOPCon cells, LID and LeTID degradation rates are significantly lower than in PERC modules, as confirmed by the official Astronergy datasheet (EN edition, June 2024). - **30-Year Linear Power Warranty** - The manufacturer guarantees degradation of ≤1.0% in year one and ≤0.4% per year in years 2–30, ensuring >87% of rated power output after three decades. Comparable segment peers (JS Solar, Jinko) typically offer a 25-year linear power warranty. - **Low Temperature Coefficient** - The temperature coefficient of power is -0.29%/°C (per the Astronergy datasheet), ranking among the best results in the TOPCon class (typical range: -0.30% to -0.35%). At a module operating temperature of 65°C — representative of Polish summer conditions — power loss is approximately 2 W/kWp lower than at -0.35%/°C. - **Bifacial Design — Additional Rear-Side Yield** - The bifacial construction enables absorption of light reflected from the mounting surface. According to manufacturer data, the bifaciality factor exceeds 70%, which — over a high-albedo surface such as light gravel or a white TPO membrane — can increase annual energy yield by 5–15% compared to a monofacial module. ## Cons - **Series Discontinued (2024)** - The ASTRO N7s was discontinued in 2024 (launched 2023, end-of-life 2024). This results in limited market availability, no guarantee of continuous supply for replacement components (e.g., wiring harnesses, frames), and potential difficulties in sourcing identical modules for system expansions after 2025. ## About this series The Astronergy ASTRO N7s series is an advanced solution designed to maximize yields from limited roof space. It utilizes innovative n-type TOPCon cell technology combined with the **ZBB (Zero Busbar)** solution, which eliminates traditional busbars from the front of the cell. Thanks to this, the modules are characterized not only by higher aesthetics but, above all, by better light absorption and lower resistance losses. The use of **Gapless** construction has allowed for minimizing gaps between cells, which directly translates into record power density. It is an ideal choice for prosumers facing the problem of complex roofs with small surfaces that require compact yet high-performance components. Unlike standard products, ASTRO N7s offer exceptional **resistance to LID and LeTID degradation**, which guarantees energy production stability for several decades. This series also stands out with an excellent temperature coefficient, working efficiently even during hot summer days. By choosing these panels, the investor receives a premium-class product that combines **modern Full Black design** with the reliability necessary in the dynamically changing climate conditions of Poland. ## 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 - Weight of 21.5 kg (2.5 kg below \*\*TOPCon 450-500W\*\* median of 24.0 kg) allows easier transport and roof mounting - #1919 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What does ZBB technology mean in Astronergy ASTRO N7s panels, and does it genuinely improve performance? ZBB (Zero Busbar) is a design approach that eliminates conventional busbars from the cell surface. Instead, thin interconnecting ribbons are used, which reduces shading of the active cell area and lowers resistive losses. Combined with the Gapless cell layout — which minimizes inter-cell spacing — the ASTRO N7s achieves a module efficiency exceeding 22%. This directly translates into greater energy yield from the same roof area compared to standard panels of equivalent format. ### What warranty does the Astronergy ASTRO N7s carry, and what does it cover? Astronergy provides a 25-year product warranty on the ASTRO N7s series and a 30-year linear power output warranty. The manufacturer guarantees that first-year degradation will not exceed 1%, with subsequent annual degradation capped at 0.4% per year. After 30 years of operation, the panel retains a substantial portion of its original 465 Wp rated power, making it a competitive premium-tier solution in the Polish prosumer installation market. ### Are the Astronergy ASTRO N7s 465 Wp panels a good choice for a small or complex roof? Yes, the ASTRO N7s series was specifically engineered with limited and irregular roof surfaces in mind. The Gapless cell construction minimizes inter-cell spacing, achieving one of the highest power densities in the prosumer segment. The module's bifacial design also allows additional energy gains from albedo reflection off the mounting surface, which on light-colored roofing materials can increase the overall system energy yield by several percent. ### Is the Astronergy ASTRO N7s series still available for purchase? The ASTRO N7s series has been discontinued and is no longer actively offered by Astronergy. It has been succeeded by the newer ASTRO N7s 2.0 lineup, based on TOPCon 5.0 technology, achieving power outputs of up to 475–530 W and efficiencies of up to 23.5%. If you are looking for a comparable Full Black n-type TOPCon solution with a 30-year power warranty, contact your distributor to check current availability of panels from the N7s 2.0 series. ### How do the Astronergy ASTRO N7s panels handle summer heat, and do they lose significant power at high temperatures? The ASTRO N7s panels use n-type TOPCon cells, which feature a more favorable temperature coefficient than older p-type PERC cells. This means less power loss on hot days when module temperature on the roof can exceed 60–70 °C. In Polish climatic conditions, where summers are becoming increasingly warm, the superior thermal stability of TOPCon technology translates into measurably higher energy yields during the summer season. ### Are the Astronergy ASTRO N7s panels resistant to LID and LeTID degradation that installers often mention? Yes, the ASTRO N7s is based on n-type TOPCon cells, which are inherently highly resistant to both LID (Light Induced Degradation) and LeTID (Light and elevated Temperature Induced Degradation). Older p-type PERC cells could lose as much as 2–3% of their rated power within the first hours of operation. In the case of the ASTRO N7s, first-year degradation does not exceed 1%, after which it drops to 0.4% per year over the remaining 29 years covered by the linear power warranty. ## 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-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.