--- title: "Longi Solar LR5-72HGD-590M vs Tongwei TWMND-72HD590 - Solar Panel Comparison | ComparePV" description: "Compare Longi Solar LR5-72HGD-590M vs Tongwei TWMND-72HD590 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/longi-lr5-72hgd-590m/tw-solar-tongwei-twmnd-72hd590" image: "https://comparepv.com/og/compare/panels/longi-lr5-72hgd-590m/tw-solar-tongwei-twmnd-72hd590.png" updated: 2026-09-11 --- # Longi Solar LR5-72HGD-590M vs Tongwei TWMND-72HD590 One difference, none of them an advantage The largest is open-circuit voltage: 1.07 V apart. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Longi Solar LR5-72HGD-590M](https://comparepv.com/panel/longi-lr5-72hgd-590m) | [Tongwei TWMND-72HD590](https://comparepv.com/panel/tw-solar-tongwei-twmnd-72hd590) | | Manufacturer | Longi Solar | Tongwei | | Power | 590 Wp | 590 Wp | | Efficiency | 22.80 % | 22.80 % | | Technology | N-type | N-type | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | LR5-72HGD-590M | TWMND-72HD590 | Difference | | --- | --- | --- | --- | | Open-circuit voltage | 51.63 V | 52.70 V | 1.07 V apart | ## Every compared parameter | Parameter | LR5-72HGD-590M | TWMND-72HD590 | | --- | --- | --- | | Rated power | 590 Wp | 590 Wp | | Module efficiency | 22.80 % | 22.80 % | | Power density | 228.4 Wp/m² | 228.4 Wp/m² | | Open-circuit voltage | 51.63 V | 52.70 V | | Voltage at max power | 43.44 V | 44.27 V | | Short-circuit current | 14.38 A | 13.95 A | | Current at max power | 13.59 A | 13.33 A | | Temperature coefficient | -0.280 %/°C | -0.280 %/°C | | Dimensions | 2278x1134x30 mm | 2278x1134x30 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 31.8 kg | 31.5 kg | | Weight per kWp | 53.9 kg/kWp | 53.4 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 (-0.280 %/°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, LR5-72HGD-590M:** 19,796 kWh - **Cumulative output, TWMND-72HD590:** 19,796 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | LR5-72HGD-590M | TWMND-72HD590 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 590 W | 590 W | 100.0% of rated power | | Cool, bright day | 40 °C | 565 W | 565 W | 95.8% of rated power | | Typical summer roof | 55 °C | 540 W | 540 W | 91.6% of rated power | | Hot roof | 70 °C | 516 W | 516 W | 87.4% of rated power | ## Against the whole database | Measure | LR5-72HGD-590M | TWMND-72HD590 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,769 | #2,769 | 14,129 | Tied - the same position in the database | | Power density | #2,653 | #2,653 | 14,129 | Tied - the same position in the database | | Heat behaviour | #1,347 | #1,347 | 14,129 | Tied - the same position in the database | | Weight | #8,099 | #7,361 | 14,129 | TWMND-72HD590 leads by 738 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #3,852 | #3,836 | 14,129 | TWMND-72HD590 leads by 16 places | ## Questions ### Which panel is better: Longi Solar LR5-72HGD-590M or Tongwei TWMND-72HD590? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Longi Solar LR5-72HGD-590M and Tongwei TWMND-72HD590? **Longi Solar LR5-72HGD-590M** has a module efficiency of **22.80%**, while **Tongwei TWMND-72HD590** is **22.80%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Longi Solar LR5-72HGD-590M use vs Tongwei TWMND-72HD590? **Longi Solar LR5-72HGD-590M** uses **N-type** cells; **Tongwei TWMND-72HD590** 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 Longi Solar LR5-72HGD-590M and Tongwei TWMND-72HD590? **Longi Solar LR5-72HGD-590M** has a **30 years** power warranty; **Tongwei TWMND-72HD590** 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 Longi Solar LR5-72HGD-590M and Tongwei TWMND-72HD590 bifacial panels? Both **Longi Solar LR5-72HGD-590M** and **Tongwei TWMND-72HD590** 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 - [Longi Solar LR5-72HGD-590M vs Longi Solar LR7-72HVHF-670M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr7-72hvhf-670m) - 15 differences, the largest is module efficiency - [Longi Solar LR5-72HGD-590M vs Longi Solar LR8-66HYD-670M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr8-66hyd-670m) - 14 differences, the largest is module efficiency - [Longi Solar LR5-72HGD-590M vs Longi Solar LR7-72HVH-670M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr7-72hvh-670m) - 15 differences, the largest is module efficiency - [Longi Solar LR5-72HGD-590M vs Longi Solar LR7-72HVHF-665M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr7-72hvhf-665m) - 15 differences, the largest is module efficiency - [Longi Solar LR5-72HGD-590M vs Longi Solar LR7-72HVDF-665M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr7-72hvdf-665m) - 14 differences, the largest is module efficiency - [Longi Solar LR5-72HGD-590M vs Longi Solar LR7-72HVD-665M](https://comparepv.com/compare/longi-lr5-72hgd-590m/longi-lr7-72hvd-665m) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/longi-lr5-72hgd-590m/tw-solar-tongwei-twmnd-72hd590 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.