--- title: "Astronergy CHSM78N(DG)/F-BH-625W 625W Solar Panel - Specs & Review | ComparePV" description: "Astronergy CHSM78N(DG)/F-BH-625W 625W solar panel. Specs: 22.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/astronergy-chsm78n-dg-f-bh-625w" updated: 2026-09-11 --- # Astronergy CHSM78N(DG)/F-BH-625W Middle of its segment, heavy for its output 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Astronergy - **Model:** CHSM78N(DG)/F-BH-625W - **Series:** ASTRO N5 CHSM78N(DG)/F-BH Bifacial Series - **Rated power:** 625 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 625 W | 620 W | Typical | | | Module efficiency | 22.40% | 22.80% | Weak - bottom 23% | 4,774 | | Power density | 223.6 | 227.7 | Weak - bottom 18% | 4,955 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 34.7 kg | 32.7 kg | Weak - bottom 11% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.40% | 22.80% | Weak - bottom 23% | 4,774 | | Power density | 223.6 | 227.7 | Weak - bottom 18% | 4,955 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.5 | 53.1 | Weak - bottom 11% | 9,891 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.5 kg per kWp** - Bottom 11% of the TOPCon 600-650 W segment, against a median of 53.1. - **223.6 watts per square metre** - Bottom 18% of the TOPCon 600-650 W segment, against a median of 227.7. - **22.40% module efficiency** - Bottom 23% of the TOPCon 600-650 W segment, against a median of 22.80%. - **Best for:** Utility-scale, commercial, hot-climate and shaded-installations. - **Not ideal for:** Weight-limited structures, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 625 W - **Efficiency:** 22.40 % - **Voltage at Pmax (Vmp):** 46.29 V - **Current at Pmax (Imp):** 13.50 A - **Open-circuit voltage (Voc):** 56.01 V - **Short-circuit current (Isc):** 14.11 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:** 156 - **Bifacial:** yes ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 34.7 kg - **Area:** 2.80 m2 - **Power density:** 223.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 546 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4774 of 14005 | | Power density | 4955 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9891 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Low degradation and 30-year linear warranty** - The datasheet confirms a degradation of ≤1.0% per year and ≤0.4%/year from year 2 onwards, with a guaranteed minimum power output of 87.4% after 30 years. The Peer Jinko Tiger Neo 66HL4M-BDX offers the same 87.4%/30-year threshold, but many manufacturers in the entry-level 650 W segment limit the warranty to 25 years with an 84.8% threshold. - **N-type TOPCon 4.0 – minimal LID and LeTID degradation** - The n-type technology eliminates the dominant LID (Light-Induced Degradation) phenomenon in p-type cells and also reduces LeTID (Light & elevated Temperature Induced Degradation). This results in a significantly higher power output in the first 5 years of operation compared to PERC modules of the same rated power. - **Double-glass bifacial construction** - Replacing the 2.0+2.0 mm glass with a rear film eliminates EVA degradation (yellowing) and increases resistance to dynamic loads. Bifacial gain in ground-mounted systems with a light-colored or gravel-covered surface typically reaches 10–20% additional energy generation, which directly reduces the LCOE (Levelized Cost of Energy) of the project. - **Tier 1 BNEF – confirmed bankability** - Astronergy maintains Tier 1 status according to BloombergNEF (Q1 2026) and ranks among the top 6 producers in the 2023 bankability ranking. This status, for projects financed by commercial banks, reduces the risk premium and facilitates the acquisition of project finance. - **625–650 W power – cost optimization for BOS** - With a format of 2465×1134 mm and a peak power of up to 650 W, the system reduces the number of modules, MC4 connectors, mounting brackets, and labor hours per MW of installed power. Compared to older generation modules with 400–500 W, the ASTRO N5 series can reduce BOS (Balance of System) costs by 8–12% in utility-scale installations. ## Cons - **Performance lower than the segment leader** - The maximum efficiency of the series is 23.3%, while the Jinko Solar Tiger Neo 66HL4M-BDX achieves 24.06% at the same 650 W power output. The difference of 0.76% indicates that approximately 3.3% more modules are needed to achieve a 1 MWp installed power in Astroenerge compared to Jinko, which could increase the land area occupied or installation costs in large ground-mounted projects. ## About this series The Astronergy ASTRO N5 CHSM78N(DG)/F-BH series is an advanced solution based on **n-type TOPCon cell technology**, redefining efficiency standards in large-scale installations. Thanks to the **bifacial double glass** design, these modules not only generate energy from both sides but also exhibit extreme resistance to degradation and harsh weather conditions. This is the ideal choice for investors seeking to maximize yields while reducing LCOE. Key differentiators include a minimal temperature coefficient and **low LID and LeTID degradation**, ensuring stable operation for decades. The use of large cell formats combined with an innovative busbar layout allows for better current management and reduced internal resistance losses. These panels perform perfectly in ground-mounted projects and on roofs with high light reflectance, where every additional kilowatt-hour accelerates the return on investment. Unlike standard older-generation modules, the ASTRO N5 series offers **higher efficiency in low-light conditions**, making it unrivaled in Polish latitudes. This is a solution for professionals focusing on **maximum durability in harsh environments** and uncompromising energy efficiency. ## Notable figures - Efficiency of 22.4% matches the \*\*TOPCon 600-650W\*\* median - 223.6 W/m² power density is 4.1 W/m² below \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - requires larger installation area - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 600-650W\*\* median - At 34.7 kg, this panel is 2.0 kg heavier than the \*\*TOPCon 600-650W\*\* median (32.7 kg) - more demanding for installation crews - In the top 34% for efficiency among all TOPCon panels ## Questions ### What warranty coverage applies to the Astronergy ASTRO N5 CHSM78N(DG)/F-BH series? The ASTRO N5 CHSM78N(DG)/F-BH series comes with a 15-year product warranty and a 30-year linear power output warranty. After 30 years of operation, the module retains a minimum of 87.4% of its initial nominal power. Astronergy holds Tier 1 manufacturer status, meaning the warranty is additionally backed by an international insurance provider, significantly reducing the financial risk of the investment. ### Are the Astronergy ASTRO N5 650W panels suitable for installation in the Polish climate? Yes, the ASTRO N5 series is particularly well-suited to Polish conditions. The n-type TOPCon technology delivers higher efficiency under the low-irradiance conditions typical of Polish autumns and winters. The power temperature coefficient is only -0.29%/°C, resulting in lower thermal losses on hot summer days compared to older p-type modules. The dual-glass construction additionally eliminates moisture ingress and PID degradation issues common in cold, rainy climates. ### What does bifacial mean in the ASTRO N5 series, and how much additional energy can be harvested from the rear side of the panel? Bifacial means the module generates electricity from both the front and rear surfaces. In the ASTRO N5 CHSM78N(DG)/F-BH series, the rear surface captures irradiance reflected from the ground or rooftop beneath the array. In ground-mounted installations with a light-colored albedo surface, or on roofs with a high reflectance coefficient, the typical bifacial gain ranges from 5% to 15%, directly reducing the LCOE of the entire system. ### Are the 650W ASTRO N5 CHSM78N(DG)/F-BH modules compatible with standard mounting structures? The modules measure 2465 × 1134 × 30 mm and weigh approximately 34.7 kg. Due to their large format (78-cell layout), they are intended primarily for ground-mounted systems and industrial flat-roof installations where the racking structure can support their weight. Prior to installation, the roof load-bearing capacity and compatibility with the existing mounting system should be reviewed with the installer, as the physical dimensions exceed those of typical 60-cell residential modules. ### How does the TOPCon technology used in the ASTRO N5 series differ from conventional PERC panels? The n-type TOPCon cells used in the ASTRO N5 achieve module efficiencies of 22.5–23.3%, whereas standard PERC modules typically reach 20–21%. TOPCon also exhibits significantly lower LID and LeTID degradation, meaning reduced power loss during the initial years of operation. In practice, the system owner obtains more kilowatt-hours from the same roof area over the entire 30-year linear power warranty period. ### Is Astronergy a reputable manufacturer, and do the ASTRO N5 panels hold recognized quality certifications? Astronergy is part of the Chint Group and is classified as a Tier 1 manufacturer by independent industry agencies, confirming financial stability and verified production quality. The ASTRO N5 CHSM78N(DG)/F-BH series holds IEC 61215 and IEC 61730 certifications as required for the European market. The product warranty is underwritten by an international insurance provider, offering an additional layer of protection against manufacturer-related risks over the long investment horizon. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/625650ASTRO-N5_CHSM78NDGF-BH_2465x1134x30_EN_20240601-1bf46957f4d3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +50 W, lighter, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +45 W, lighter, +2.4 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +45 W, lighter, +2.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +2.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +45 W, cooler, +2.4 pp | | [Astronergy CHSM78N(DG)/F-BH-630](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm78n-dg-f-bh-630) | 630 W | Very close match | | [Astronergy CHSM78N(DG)/F-BH-635](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm78n-dg-f-bh-635) | 635 W | +10 W, +0.3 pp | | [Astronergy CHSM78N(DG)/F-BH-640](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm78n-dg-f-bh-640) | 640 W | +15 W, +0.5 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +55 W, lighter, +2.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +75 W, cooler, +2.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +70 W, cooler, +2.5 pp | --- Source: https://comparepv.com/panel/astronergy-chsm78n-dg-f-bh-625w 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.