--- title: "Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-445W - Solar Panel Comparison | ComparePV" description: "Compare Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-445W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445w" updated: 2026-09-11 --- # Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-445W 445W leads on the differences that matter The largest is module efficiency: 1.00 pp more efficient. 15 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Astronergy CHSM54N-HC-425W](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w) | [Astronergy CHSM54N-HC-445W](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445w) | | Manufacturer | Astronergy | Astronergy | | Power | 425 Wp | 445 Wp | | Efficiency | 21.80 % | 22.80 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 425W | 445W | Difference | | --- | --- | --- | --- | | Module efficiency | 21.80 % | 22.80 % | +1.00 pp for 445W | | Power density | 217.6 Wp/m² | 227.9 Wp/m² | +10.2 Wp/m² for 445W | | Rated power | 425 Wp | 445 Wp | +20 W for 445W | | Weight per kWp | 50.1 kg/kWp | 47.9 kg/kWp | -2.3 kg/kWp for 445W | ## Every compared parameter | Parameter | 425W | 445W | | --- | --- | --- | | Rated power | 425 Wp | 445 Wp | | Module efficiency | 21.80 % | 22.80 % | | Power density | 217.6 Wp/m² | 227.9 Wp/m² | | Open-circuit voltage | 38.20 V | 39.00 V | | Voltage at max power | 32.10 V | 32.77 V | | Short-circuit current | 13.98 A | 14.41 A | | Current at max power | 13.24 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 | 50.1 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 | TOPCon | | 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, 425W:** 14,260 kWh - **Cumulative output, 445W:** 14,931 kWh - **Gap:** 671 kWh ## Output when hot | Condition | Cell temperature | 425W | 445W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 425 W | 445 W | 100.0% of rated power | | Cool, bright day | 40 °C | 407 W | 426 W | 95.7% of rated power | | Typical summer roof | 55 °C | 388 W | 406 W | 91.3% of rated power | | Hot roof | 70 °C | 370 W | 387 W | 87.0% of rated power | ## Against the whole database | Measure | 425W | 445W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #7,022 | #2,714 | 14,005 | 445W leads by 4,308 places | | Power density | #7,172 | #2,790 | 14,005 | 445W leads by 4,382 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #3,619 | #1,948 | 14,005 | 445W leads by 1,671 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #9,874 | #8,168 | 14,005 | 445W leads by 1,706 places | ## Questions ### Which panel is better: Astronergy CHSM54N-HC-425W or Astronergy CHSM54N-HC-445W? According to our database: **Astronergy CHSM54N-HC-**445 W**** has higher module efficiency (**22.80%** vs **21.80%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Astronergy CHSM54N-HC-425W and Astronergy CHSM54N-HC-445W? **Astronergy CHSM54N-HC-**425 W**** has a module efficiency of **21.80%**, while **Astronergy CHSM54N-HC-**445 W**** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Astronergy CHSM54N-HC-425W use vs Astronergy CHSM54N-HC-445W? **Astronergy CHSM54N-HC-**425 W**** uses **TOPCon** cells; **Astronergy CHSM54N-HC-**445 W**** uses **TOPCon**. 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 CHSM54N-HC-425W and Astronergy CHSM54N-HC-445W? **Astronergy CHSM54N-HC-**425 W**** has a **30 years** power warranty; **Astronergy CHSM54N-HC-**445 W**** 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 CHSM54N-HC-425W vs Astronergy CHSM54N-HC-440W](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-440w) - 3 differences, the largest is module efficiency - [Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-435W](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-435w) - 3 differences, the largest is module efficiency - [Astronergy CHSM54N-HC-425W vs Astronergy CHSM54N-HC-430W](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-430w) - One difference: module efficiency - [Astronergy CHSM54N-HC-425W vs Astronergy CHSM66N(DG)/F-BH-735](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chsm66n-dg-f-bh-735) - 12 differences, the largest is module efficiency - [Astronergy CHSM54N-HC-425W vs Astronergy CHSM66N(DG)/F-BH-730](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730) - 12 differences, the largest is module efficiency - [Astronergy CHSM54N-HC-425W vs Astronergy CHSM66N(DG)/F-BH-725](https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-725) - 13 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-425w/astronergy-chint-new-energy-technology-co-ltd-chsm54n-hc-445w 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.