--- title: "Astronergy CHSM48RN(DG)/F-BH-440 440W Solar Panel - Specs & Review | ComparePV" description: "Astronergy CHSM48RN(DG)/F-BH-440 440W solar panel. Specs: 22.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-440" updated: 2026-09-11 --- # Astronergy CHSM48RN(DG)/F-BH-440 Solid all-round for its segment 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Astronergy - **Model:** CHSM48RN(DG)/F-BH-440 - **Series:** ASTRO N7s (Bifacial Series) - **Rated power:** 440 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 435 W | Typical | | | Module efficiency | 22.00% | 22.00% | Typical | 6,517 | | Power density | 220.2 | 220.2 | Typical | 6,328 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.5 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.00% | 22.00% | Typical | 6,517 | | Power density | 220.2 | 220.2 | Typical | 6,328 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.7 | 51.4 | Typical | 10,051 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 22.00 % - **Voltage at Pmax (Vmp):** 30.06 V - **Current at Pmax (Imp):** 14.64 A - **Open-circuit voltage (Voc):** 36.09 V - **Short-circuit current (Isc):** 15.47 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:** 220.2 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:** 385 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6517 of 14005 | | Power density | 6328 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 10051 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon with Zero Busbar (ZBB) Technology** - The N-type TOPCon 4.0 cells feature a Zero Busbar (ZBB) architecture that eliminates conventional busbars, reducing shading of the active cell area and improving carrier collection efficiency. Astronergy became the first manufacturer to obtain TÜV Rheinland certification for a ZBB-TF module, confirming enhanced reliability — the elimination of the soldering process reduces the risk of degradation under damp-heat conditions. - **30-Year Linear Power Warranty ≥87%** - The manufacturer guarantees degradation of ≤1.0% in year one and ≤0.4%/year in years 2–30, ensuring ≥87% of rated power output after 30 years. The peer-comparable Q-Cells Q.TRON BLACK, at a similar efficiency of 22.3%, offers a standard 25-year warranty — the ASTRO N7s extends the coverage horizon by 5 years, a material consideration when calculating IRR for C&I installations. - **High Power Density: 22.0–22.3% Efficiency** - Module efficiency of 22.0–22.3% at 440–445 Wp places this series at the forefront of the DG/residential segment: the peer SunEvo SE6-46SC (shingled) achieves only 21.4%, which translates to approximately 4% more annual energy yield for the same roof area. - **Bankable Tier 1 per BNEF (Top 6 in 2023)** - Astronergy ranked in the Top 6 module manufacturers in the BloombergNEF 2023 bankability ranking and has maintained Tier-1 status in subsequent quarters (Q4 2025, Q1 2026). For externally financed projects or those subject to insurer review, this status is a prerequisite for product acceptance. - **Dual-Glass Construction and Mechanical Durability** - Dual-glass (DG) variants deliver enhanced resistance to mechanical loads and reduce the risk of damage caused by PID (Potential Induced Degradation). For installations in regions with wide temperature swings or significant wind and snow exposure, this translates to a physically longer service life extending beyond the warranty period. ## Cons - **Limited Bifacial Gain on Typical Rooftop Installations** - The module's bifacial design delivers maximum benefit at albedo ≥0.3 (light-colored gravel, white membranes, ground-mount systems). On typical rooftops with dark tiles or bituminous felt, albedo ranges from 0.1 to 0.15, reducing the real bifacial gain to 2–4% rather than the stated 5–15%. In such installations, the price premium for a bifacial module may not be justified compared to monofacial modules of equivalent efficiency. - **Non-EU Manufacturing Origin** - Modules are manufactured in China, whereas the peer-comparable Solitek SOLRIF D Satin (Lithuania) offers similar output of 445 Wp and efficiency of 22.06% with certified EU production. For projects subject to CBAM requirements, local tender criteria, or ESG preferences regarding supply chain carbon footprint, this may be a disqualifying factor. ## About this series Astronergy ASTRO N7s (Bifacial Series) are dual-sided modules designed to maximize energy yield in real-world operating conditions - not just in the lab. Cells of type n in the **TOPCon** technology help reduce power degradation over time and improve energy production stability, which is crucial for long-term installations. A key feature is the **ZBB (zero busbar)** construction - fewer panel shading and better performance under partial shading. Versions with double glazing enhance **mechanical strength and durability**, valued by investors seeking reliability in challenging environments. The dual-sided nature of the module supports **additional gain from reflected light**, especially on light-colored roofs, with light crushed stone or on ground-mounted structures. This is a great choice for homes, small businesses, and C&I projects where high power density, aesthetics, and predictable return on investment matter. ## Notable figures - At 22.0% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 220.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 400-450W\*\* median - At 24.5 kg, this panel is 2.5 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### What warranty does the Astronergy ASTRO N7s Bifacial series carry? Astronergy provides a 25-year product warranty on the ASTRO N7s series along with an industry-leading 30-year linear power output warranty. First-year power degradation is capped at 1%, with subsequent annual degradation from year 2 through year 30 not exceeding 0.4%. This represents one of the longest warranty packages available for TOPCon modules on the market, resulting in a more predictable return on investment over the system's lifetime. ### What is ZBB technology in the ASTRO N7s panels, and does it make a practical difference? ZBB (Zero Busbar) refers to a cell architecture that eliminates conventional busbars from the front cell surface, replacing them with a greater number of fine current-collecting fingers. This shorter current path reduces resistive losses and minimizes shading of the active cell area. The practical result is improved performance under partial shading conditions — such as from a chimney or antenna — as well as higher overall module efficiency compared to standard busbar designs. ### Are the Astronergy ASTRO N7s Bifacial panels suitable for a typical pitched roof in Poland? Yes. ASTRO N7s modules have a footprint below 2 m² and a relatively low module weight, making on-roof handling and installation straightforward even in hard-to-access locations. The n-type TOPCon cell technology performs well under diffuse irradiance and low-temperature winter conditions characteristic of the Polish climate. The series is well-suited for gabled, hipped, and flat roof installations alike. ### Does the bifacial design of the ASTRO N7s panels deliver a real energy gain on a residential roof? The module's bifaciality (bifaciality factor up to 85%) generates additional yield from reflected irradiance striking the rear cell surface. On a light-colored or reflective roofing material, the bifacial gain typically ranges from 5–15% relative to an equivalent monofacial module. Ground-mounted systems with high-albedo ground cover benefit the most, but the gain is measurable even on rooftops, particularly during summer months. ### How does the Astronergy ASTRO N7s differ from lower-cost PERC panels available on the market? The ASTRO N7s uses n-type TOPCon cells, which exhibit a lower long-term degradation rate and significantly reduced susceptibility to LID (Light-Induced Degradation) compared to mainstream p-type PERC cells. This translates into smaller power losses during the early years of operation and higher cumulative energy yield over the full 30-year warranty period, even though the upfront purchase price is typically higher than that of equivalent PERC modules. ### Is Astronergy a proven manufacturer, and do the ASTRO N7s panels hold the necessary certifications? Astronergy is recognized as a Tier 1 manufacturer under the BNEF (Bloomberg NEF) classification, confirming its financial stability and manufacturing reliability. ASTRO N7s modules carry IEC and MCS certifications required for European markets. The company has received TOP PERFORMER distinctions in independent reliability tests for dual-glass modules. Both the product and power output warranties are backed by an independent insurance policy, providing additional security for the investor. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/440460astro-n7s-chsm48rndgf-bh-1762-1134-30-2-0-glass-en-202-94436e4ff60e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, lighter, +2.5 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, lighter, +2.5 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +45 W, lighter, +2.3 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +45 W, lighter, +2.3 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +45 W, lighter, +2.3 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +45 W, lighter, +2.3 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +45 W, cooler, +2.3 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 | +0.3 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 | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +3.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, lighter, +2.8 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.5 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, lighter, +2.5 pp | --- Source: https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-440 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.