--- title: "Hanersun HN18-72H580W vs Hanersun HN18-72H585W - Solar Panel Comparison | ComparePV" description: "Compare Hanersun HN18-72H580W vs Hanersun HN18-72H585W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn18-72h585w" image: "https://comparepv.com/og/compare/panels/hanersun-hn18-72h580w/hanersun-hn18-72h585w.png" updated: 2026-09-11 --- # Hanersun HN18-72H580W vs Hanersun HN18-72H585W 72H585W leads on the differences that matter The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Hanersun HN18-72H580W](https://comparepv.com/panel/hanersun-hn18-72h580w) | [Hanersun HN18-72H585W](https://comparepv.com/panel/hanersun-hn18-72h585w) | | Manufacturer | Hanersun | Hanersun | | Power | 580 Wp | 585 Wp | | Efficiency | 22.45 % | 22.65 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 72H580W | 72H585W | Difference | | --- | --- | --- | --- | | Module efficiency | 22.45 % | 22.65 % | +0.20 pp for 72H585W | ## Every compared parameter | Parameter | 72H580W | 72H585W | | --- | --- | --- | | Rated power | 580 Wp | 585 Wp | | Module efficiency | 22.45 % | 22.65 % | | Power density | 224.5 Wp/m² | 226.5 Wp/m² | | Open-circuit voltage | 51.40 V | 51.60 V | | Voltage at max power | 43.20 V | 43.40 V | | Short-circuit current | 14.23 A | 14.29 A | | Current at max power | 13.43 A | 13.48 A | | Temperature coefficient | -0.310 %/°C | -0.310 %/°C | | Dimensions | 2278x1134x30 mm | 2278x1134x30 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 28.5 kg | 28.5 kg | | Weight per kWp | 49.1 kg/kWp | 48.7 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 25 yrs | 25 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 (-0.310 %/°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, 72H580W:** 19,460 kWh - **Cumulative output, 72H585W:** 19,628 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 72H580W | 72H585W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 580 W | 585 W | 100.0% of rated power | | Cool, bright day | 40 °C | 553 W | 558 W | 95.3% of rated power | | Typical summer roof | 55 °C | 526 W | 531 W | 90.7% of rated power | | Hot roof | 70 °C | 499 W | 503 W | 86.0% of rated power | ## Against the whole database | Measure | 72H580W | 72H585W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,680 | #3,579 | 14,129 | 72H585W leads by 1,101 places | | Power density | #4,607 | #3,557 | 14,129 | 72H585W leads by 1,050 places | | Heat behaviour | #8,069 | #8,069 | 14,129 | Tied - the same position in the database | | Weight | #2,773 | #2,436 | 14,129 | 72H585W leads by 337 places | | Warranty | #9,912 | #9,912 | 14,129 | Tied - the same position in the database | | Overall | #5,534 | #5,102 | 14,129 | 72H585W leads by 432 places | ## Questions ### Which panel is better: Hanersun HN18-72H580W or Hanersun HN18-72H585W? According to our database: **Hanersun HN18-72H**585 W**** has higher module efficiency (**22.65%** vs **22.45%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Hanersun HN18-72H580W and Hanersun HN18-72H585W? **Hanersun HN18-72H**580 W**** has a module efficiency of **22.45%**, while **Hanersun HN18-72H**585 W**** is **22.65%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Hanersun HN18-72H580W use vs Hanersun HN18-72H585W? **Hanersun HN18-72H**580 W**** uses **TOPCon** cells; **Hanersun HN18-72H**585 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 Hanersun HN18-72H580W and Hanersun HN18-72H585W? **Hanersun HN18-72H**580 W**** has a **25 years** power warranty; **Hanersun HN18-72H**585 W**** has a **25 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 - [Hanersun HN18-72H580W vs Hanersun HN18-72H575W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn18-72h575w) - The same specification on paper - [Hanersun HN18-72H580W vs Hanersun HN18-72H570W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn18-72h570w) - 3 differences, the largest is module efficiency - [Hanersun HN18-72H580W vs Hanersun HN18-72H565W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn18-72h565w) - 3 differences, the largest is module efficiency - [Hanersun HN18-72H580W vs Hanersun HN21N-66HT750W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn21n-66ht750w) - 14 differences, the largest is module efficiency - [Hanersun HN18-72H580W vs Hanersun HN21N-66HT745W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn21n-66ht745w) - 15 differences, the largest is module efficiency - [Hanersun HN18-72H580W vs Hanersun HN21N-66HT740W](https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn21n-66ht740w) - 15 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/hanersun-hn18-72h580w/hanersun-hn18-72h585w 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.