--- title: "Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-605 - Solar Panel Comparison | ComparePV" description: "Compare Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-605 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chsm72n-hc-605" updated: 2026-09-11 --- # Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-605 605 leads on the differences that matter The largest is module efficiency: 0.60 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Astronergy CHSM72N-HC-590](https://comparepv.com/panel/astronergy-chsm72n-hc-590) | [Astronergy CHSM72N-HC-605](https://comparepv.com/panel/astronergy-chsm72n-hc-605) | | Manufacturer | Astronergy | Astronergy | | Power | 590 Wp | 605 Wp | | Efficiency | 22.80 % | 23.40 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 590 | 605 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.80 % | 23.40 % | +0.60 pp for 605 | | Power density | 228.4 Wp/m² | 234.2 Wp/m² | +5.8 Wp/m² for 605 | | Rated power | 590 Wp | 605 Wp | +15 W for 605 | ## Every compared parameter | Parameter | 590 | 605 | | --- | --- | --- | | Rated power | 590 Wp | 605 Wp | | Module efficiency | 22.80 % | 23.40 % | | Power density | 228.4 Wp/m² | 234.2 Wp/m² | | Open-circuit voltage | 51.45 V | 51.90 V | | Voltage at max power | 42.88 V | 43.25 V | | Short-circuit current | 14.50 A | 14.79 A | | Current at max power | 13.76 A | 13.99 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2278x1134x35 mm | 2278x1134x35 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 26.9 kg | 26.9 kg | | Weight per kWp | 45.6 kg/kWp | 44.5 kg/kWp | | Product warranty | 12 yrs | 12 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 | 144 | 144 | | 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, 590:** 19,796 kWh - **Cumulative output, 605:** 20,299 kWh - **Gap:** 503 kWh ## Output when hot | Condition | Cell temperature | 590 | 605 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 590 W | 605 W | 100.0% of rated power | | Cool, bright day | 40 °C | 564 W | 579 W | 95.7% of rated power | | Typical summer roof | 55 °C | 539 W | 552 W | 91.3% of rated power | | Hot roof | 70 °C | 513 W | 526 W | 87.0% of rated power | ## Against the whole database | Measure | 590 | 605 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,714 | #882 | 14,005 | 605 leads by 1,832 places | | Power density | #2,598 | #863 | 14,005 | 605 leads by 1,735 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #774 | #461 | 14,005 | 605 leads by 313 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,643 | #2,446 | 14,005 | 605 leads by 1,197 places | ## Questions ### Which panel is better: Astronergy CHSM72N-HC-590 or Astronergy CHSM72N-HC-605? According to our database: **Astronergy CHSM72N-HC-605** has higher module efficiency (**23.40%** vs **22.80%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Astronergy CHSM72N-HC-590 and Astronergy CHSM72N-HC-605? **Astronergy CHSM72N-HC-590** has a module efficiency of **22.80%**, while **Astronergy CHSM72N-HC-605** is **23.40%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Astronergy CHSM72N-HC-590 use vs Astronergy CHSM72N-HC-605? **Astronergy CHSM72N-HC-590** uses **TOPCon** cells; **Astronergy CHSM72N-HC-605** 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 CHSM72N-HC-590 and Astronergy CHSM72N-HC-605? **Astronergy CHSM72N-HC-590** has a **30 years** power warranty; **Astronergy CHSM72N-HC-605** 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 CHSM72N-HC-590 vs Astronergy CHSM72N-HC-600](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chsm72n-hc-600) - 3 differences, the largest is module efficiency - [Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-595](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chsm72n-hc-595) - One difference: module efficiency - [Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-585](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chint-new-energy-technology-co-ltd-chsm72n-hc-585) - One difference: module efficiency - [Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-580](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chint-new-energy-technology-co-ltd-chsm72n-hc-580) - 3 differences, the largest is module efficiency - [Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-575](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chint-new-energy-technology-co-ltd-chsm72n-hc-575) - 3 differences, the largest is module efficiency - [Astronergy CHSM72N-HC-590 vs Astronergy CHSM72N-HC-570](https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chint-new-energy-technology-co-ltd-chsm72n-hc-570) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/astronergy-chsm72n-hc-590/astronergy-chsm72n-hc-605 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.