--- title: "Waaree BiN-08-580 vs Waaree BiN-08-590 - Solar Panel Comparison | ComparePV" description: "Compare Waaree BiN-08-580 vs Waaree BiN-08-590 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-590" updated: 2026-09-11 --- # Waaree BiN-08-580 vs Waaree BiN-08-590 590 leads on the differences that matter The largest is module efficiency: 0.39 pp more efficient. 16 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Waaree BiN-08-580](https://comparepv.com/panel/waaree-bin-08-580) | [Waaree BiN-08-590](https://comparepv.com/panel/waaree-bin-08-590) | | Manufacturer | Waaree | Waaree | | Power | 580 Wp | 590 Wp | | Efficiency | 22.45 % | 22.84 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 580 | 590 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.45 % | 22.84 % | +0.39 pp for 590 | | Power density | 224.5 Wp/m² | 228.4 Wp/m² | +3.9 Wp/m² for 590 | | Rated power | 580 Wp | 590 Wp | +10 W for 590 | ## Every compared parameter | Parameter | 580 | 590 | | --- | --- | --- | | Rated power | 580 Wp | 590 Wp | | Module efficiency | 22.45 % | 22.84 % | | Power density | 224.5 Wp/m² | 228.4 Wp/m² | | Open-circuit voltage | 52.50 V | 52.90 V | | Voltage at max power | 44.01 V | 44.29 V | | Short-circuit current | 13.93 A | 14.05 A | | Current at max power | 13.18 A | 13.32 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 2278x1134x33 mm | 2278x1134x33 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 32.5 kg | 32.5 kg | | Weight per kWp | 56.0 kg/kWp | 55.1 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | N-type | N-type | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.300 %/°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, 580:** 19,460 kWh - **Cumulative output, 590:** 19,796 kWh - **Gap:** 336 kWh ## Output when hot | Condition | Cell temperature | 580 | 590 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 580 W | 590 W | 100.0% of rated power | | Cool, bright day | 40 °C | 554 W | 563 W | 95.5% of rated power | | Typical summer roof | 55 °C | 528 W | 537 W | 91.0% of rated power | | Hot roof | 70 °C | 502 W | 510 W | 86.5% of rated power | ## Against the whole database | Measure | 580 | 590 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,620 | #2,617 | 14,005 | 590 leads by 2,003 places | | Power density | #4,547 | #2,598 | 14,005 | 590 leads by 1,949 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #10,343 | #9,503 | 14,005 | 590 leads by 840 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #4,591 | #3,779 | 14,005 | 590 leads by 812 places | ## Questions ### Which panel is better: Waaree BiN-08-580 or Waaree BiN-08-590? According to our database: **Waaree BiN-08-590** has higher module efficiency (**22.84%** vs **22.45%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Waaree BiN-08-580 and Waaree BiN-08-590? **Waaree BiN-08-580** has a module efficiency of **22.45%**, while **Waaree BiN-08-590** is **22.84%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Waaree BiN-08-580 use vs Waaree BiN-08-590? **Waaree BiN-08-580** uses **N-type** cells; **Waaree BiN-08-590** 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 Waaree BiN-08-580 and Waaree BiN-08-590? **Waaree BiN-08-580** has a **30 years** power warranty; **Waaree BiN-08-590** 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. ### Are Waaree BiN-08-580 and Waaree BiN-08-590 bifacial panels? Both **Waaree BiN-08-580** and **Waaree BiN-08-590** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [Waaree BiN-08-580 vs Waaree BiN-08-600](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-600) - 3 differences, the largest is module efficiency - [Waaree BiN-08-580 vs Waaree BiN-08-595](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-595) - 3 differences, the largest is module efficiency - [Waaree BiN-08-580 vs Waaree BiN-08-585](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-585) - One difference: module efficiency - [Waaree BiN-08-580 vs Waaree BiN-08-575](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-575) - The same specification on paper - [Waaree BiN-08-580 vs Waaree BiN-08-570](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-570) - 3 differences, the largest is module efficiency - [Waaree BiN-08-580 vs Waaree BiN-08-565](https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-565) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/waaree-bin-08-580/waaree-bin-08-590 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.