--- title: "GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-605W - Solar Panel Comparison | ComparePV" description: "Compare GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-605W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-hy-nt10-72gdf-605w" updated: 2026-09-11 --- # GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-605W 605W 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 | [GL Solar HY-NT10/72GDF-590W](https://comparepv.com/panel/gl-solar-hy-nt10-72gdf-590w) | [GL Solar HY-NT10/72GDF-605W](https://comparepv.com/panel/gl-solar-hy-nt10-72gdf-605w) | | Manufacturer | GL Solar | GL Solar | | 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 | 590W | 605W | Difference | | --- | --- | --- | --- | | Module efficiency | 22.80 % | 23.40 % | +0.60 pp for 605W | | Power density | 228.4 Wp/m² | 234.2 Wp/m² | +5.8 Wp/m² for 605W | | Rated power | 590 Wp | 605 Wp | +15 W for 605W | ## Every compared parameter | Parameter | 590W | 605W | | --- | --- | --- | | 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 | 52.20 V | 52.75 V | | Voltage at max power | 44.15 V | 44.74 V | | Short-circuit current | 14.13 A | 14.31 A | | Current at max power | 13.37 A | 13.53 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2278x1134x30 mm | 2278x1134x30 mm | | Module area | 2.583 m² | 2.583 m² | | Weight | 32.1 kg | 32.1 kg | | Weight per kWp | 54.4 kg/kWp | 53.1 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 | 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 (-0.290 %/°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, 590W:** 19,796 kWh - **Cumulative output, 605W:** 20,299 kWh - **Gap:** 503 kWh ## Output when hot | Condition | Cell temperature | 590W | 605W | 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 | 590W | 605W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,714 | #882 | 14,005 | 605W leads by 1,832 places | | Power density | #2,598 | #863 | 14,005 | 605W leads by 1,735 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #8,715 | #6,815 | 14,005 | 605W leads by 1,900 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,167 | #2,085 | 14,005 | 605W leads by 1,082 places | ## Questions ### Which panel is better: GL Solar HY-NT10/72GDF-590W or GL Solar HY-NT10/72GDF-605W? According to our database: **GL Solar HY-NT10/72GDF-**605 W**** 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 GL Solar HY-NT10/72GDF-590W and GL Solar HY-NT10/72GDF-605W? **GL Solar HY-NT10/72GDF-**590 W**** has a module efficiency of **22.80%**, while **GL Solar HY-NT10/72GDF-**605 W**** is **23.40%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does GL Solar HY-NT10/72GDF-590W use vs GL Solar HY-NT10/72GDF-605W? **GL Solar HY-NT10/72GDF-**590 W**** uses **TOPCon** cells; **GL Solar HY-NT10/72GDF-**605 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 GL Solar HY-NT10/72GDF-590W and GL Solar HY-NT10/72GDF-605W? **GL Solar HY-NT10/72GDF-**590 W**** has a **30 years** power warranty; **GL Solar HY-NT10/72GDF-**605 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. ### Are GL Solar HY-NT10/72GDF-590W and GL Solar HY-NT10/72GDF-605W bifacial panels? Both **GL Solar HY-NT10/72GDF-**590 W**** and **GL Solar HY-NT10/72GDF-**605 W**** 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 - [GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-610W](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-hy-nt10-72gdf-610w) - 3 differences, the largest is module efficiency - [GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-600W](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-hy-nt10-72gdf-600w) - 3 differences, the largest is module efficiency - [GL Solar HY-NT10/72GDF-590W vs GL Solar HY-NT10/72GDF-595W](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-hy-nt10-72gdf-595w) - One difference: module efficiency - [GL Solar HY-NT10/72GDF-590W vs GL Solar 3SHBGH-C#-640](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-3shbgh-c-640) - 12 differences, the largest is rated power - [GL Solar HY-NT10/72GDF-590W vs GL Solar 3SHBGH-C#-635](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-3shbgh-c-635) - 14 differences, the largest is rated power - [GL Solar HY-NT10/72GDF-590W vs GL Solar 3SHBGH-C#-630](https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-3shbgh-c-630) - 14 differences, the largest is rated power --- Source: https://comparepv.com/compare/gl-solar-hy-nt10-72gdf-590w/gl-solar-hy-nt10-72gdf-605w 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.