--- title: "Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-445 - Solar Panel Comparison | ComparePV" description: "Compare Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-445 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445" updated: 2026-09-11 --- # Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-445 CHSM54N-HC-445 leads on the differences that matter The largest is module efficiency: 0.30 pp more efficient. 17 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Astronergy ASTRO N5s CHSM54N-HC-440W](https://comparepv.com/panel/astronergy-astro-n5s-chsm54n-hc-440w) | [Astronergy CHSM54N-HC-445](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445) | | Manufacturer | Astronergy | Astronergy | | Power | 440 Wp | 445 Wp | | Efficiency | 22.50 % | 22.80 % | | Technology | TOPCon | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | ASTRO N5s CHSM54N-HC-440W | CHSM54N-HC-445 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.50 % | 22.80 % | +0.30 pp for CHSM54N-HC-445 | | Cell technology | TOPCon | N-type | TOPCon vs N-type | ## Every compared parameter | Parameter | ASTRO N5s CHSM54N-HC-440W | CHSM54N-HC-445 | | --- | --- | --- | | Rated power | 440 Wp | 445 Wp | | Module efficiency | 22.50 % | 22.80 % | | Power density | 225.3 Wp/m² | 227.9 Wp/m² | | Open-circuit voltage | 38.80 V | 39.00 V | | Voltage at max power | 32.61 V | 32.77 V | | Short-circuit current | 14.30 A | 14.41 A | | Current at max power | 13.49 A | 13.58 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1722x1134x30 mm | 1722x1134x30 mm | | Module area | 1.953 m² | 1.953 m² | | Weight | 21.3 kg | 21.3 kg | | Weight per kWp | 48.4 kg/kWp | 47.9 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, ASTRO N5s CHSM54N-HC-440W:** 14,763 kWh - **Cumulative output, CHSM54N-HC-445:** 14,931 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | ASTRO N5s CHSM54N-HC-440W | CHSM54N-HC-445 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 440 W | 445 W | 100.0% of rated power | | Cool, bright day | 40 °C | 421 W | 426 W | 95.7% of rated power | | Typical summer roof | 55 °C | 402 W | 406 W | 91.3% of rated power | | Hot roof | 70 °C | 383 W | 387 W | 87.0% of rated power | ## Against the whole database | Measure | ASTRO N5s CHSM54N-HC-440W | CHSM54N-HC-445 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,222 | #2,714 | 14,005 | CHSM54N-HC-445 leads by 1,508 places | | Power density | #4,099 | #2,790 | 14,005 | CHSM54N-HC-445 leads by 1,309 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #2,253 | #1,948 | 14,005 | CHSM54N-HC-445 leads by 305 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,696 | #8,168 | 14,005 | CHSM54N-HC-445 leads by 528 places | ## Questions ### Which panel is better: Astronergy ASTRO N5s CHSM54N-HC-440W or Astronergy CHSM54N-HC-445? According to our database: **Astronergy CHSM54N-HC-445** has higher module efficiency (**22.80%** vs **22.50%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Astronergy ASTRO N5s CHSM54N-HC-440W and Astronergy CHSM54N-HC-445? **Astronergy ASTRO N5s CHSM54N-HC-**440 W**** has a module efficiency of **22.50%**, while **Astronergy CHSM54N-HC-445** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Astronergy ASTRO N5s CHSM54N-HC-440W use vs Astronergy CHSM54N-HC-445? **Astronergy ASTRO N5s CHSM54N-HC-**440 W**** uses **TOPCon** cells; **Astronergy CHSM54N-HC-445** uses **N-type**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on Astronergy ASTRO N5s CHSM54N-HC-440W and Astronergy CHSM54N-HC-445? **Astronergy ASTRO N5s CHSM54N-HC-**440 W**** has a **30 years** power warranty; **Astronergy CHSM54N-HC-445** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ## Related comparisons - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-445W](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445w) - One difference: module efficiency - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy ASTRO N5s CHSM54N-HC-445W](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-astro-n5s-chsm54n-hc-445w) - One difference: module efficiency - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-440](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-440) - One difference: cell technology - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-440W](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-440w) - The same specification on paper - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N(BL)-HC 440W](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-bl-hc-440w) - The same specification on paper - [Astronergy ASTRO N5s CHSM54N-HC-440W vs Astronergy CHSM54N-HC-435](https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-435) - 2 differences, the largest is cell technology --- Source: https://comparepv.com/compare/astronergy-astro-n5s-chsm54n-hc-440w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.