--- title: "Yingli YL585D-41f 1/2 / YL585D-41f 1500V 1/2 Solar Panel: Specs & Datasheet | ComparePV" description: "Yingli YL585D-41f 1/2 / YL585D-41f 1500V 1/2 solar panel. Specs: 20.70% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/yingli-yl585d-41f-1-2-yl585d-41f-1500v-1-2" image: "https://comparepv.com/og/panel/yingli-yl585d-41f-1-2-yl585d-41f-1500v-1-2.png" updated: 2026-09-11 --- # Yingli YL585D-41f 1/2 / YL585D-41f 1500V 1/2 Middle of its segment, needs the roof space 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Yingli - **Model:** YL585D-41f 1/2 / YL585D-41f 1500V 1/2 - **Series:** YLM 3.0 Plus 1 - **Rated power:** 585 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 560 W | Typical | | | Module efficiency | 20.70% | 21.29% | Weak - bottom 8% | 10,842 | | Power density | 206.7 | 212.9 | Weak - bottom 6% | 11,004 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,846 | | Weight (kg) | 31.0 kg | 30.8 kg | Typical | | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.70% | 21.29% | Weak - bottom 8% | 10,842 | | Power density | 206.7 | 212.9 | Weak - bottom 6% | 11,004 | | Temperature coefficient | -0.340 | -0.350 | Typical | 8,846 | | Weight per kWp | 53.0 | 52.7 | Typical | 6,755 | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,912 | ### Watch out for - **206.7 watts per square metre** - Bottom 6% of the PERC 550-600 W segment, against a median of 212.9. Ranked 11,004th in the whole database. - **20.70% module efficiency** - Bottom 8% of the PERC 550-600 W segment, against a median of 21.29%. Ranked 10,842nd in the whole database. - **25 year performance warranty** - Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 20.70 % - **Voltage at Pmax (Vmp):** 34.00 V - **Current at Pmax (Imp):** 17.21 A - **Open-circuit voltage (Voc):** 41.00 V - **Short-circuit current (Isc):** 18.26 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 31.0 kg - **Area:** 2.83 m2 - **Power density:** 206.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 480 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10842 of 14129 | | Power density | 11004 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 6755 of 14129 | | Warranty | 9912 of 14129 | ## About this series The Yingli YLM 3.0 Plus 1 series is designed for high energy production on limited mounting surfaces, making it ideal where every square meter of roof or field space counts. These modules utilize **p-type monocrystalline PERC solar cells**, and their refined interconnection architecture ensures stable performance even under partial shading and uneven irradiance, common in many Polish installations. A key feature is the **glass-glass construction**, which enhances environmental resistance and facilitates maintaining parameters over a long period - a real advantage in projects exposed to wind, humidity, and temperature fluctuations. The series targets **high reliability in challenging conditions** thanks to high-quality lamination materials and robust construction. The YLM 3.0 Plus 1 is a solid choice for commercial and utility-scale PV projects, where dependable power generation and long-term durability take precedence over catalog specifications. ## Notable figures - Module efficiency of 20.7% is 0.6pp below average for \*\*PERC 550-600W\*\* panels (median: 21.3%) - 206.7 W/m² power density is 6.2 W/m² below \*\*PERC 550-600W\*\* median (212.9 W/m²) - requires larger installation area - At -0.34%/°C, hot weather performance is typical for \*\*PERC 550-600W\*\* panels - Ranked #10842 out of 14129 panels for efficiency in the database ## Questions ### What is the maximum power output of the Yingli YLM 3.0 Plus 1 panel? The top variant of the YLM 3.0 Plus 1 series reaches up to 670 Wp, thanks to 132 large p-type monocrystalline PERC cells. This allows high energy yield from fewer modules, which meaningfully reduces installation time and mounting structure costs in commercial installations and utility-scale PV farms. ### How does the glass-glass construction of the YLM 3.0 Plus 1 differ from standard glass-backsheet panels? Unlike typical panels with a rear backsheet layer, the YLM 3.0 Plus 1 encapsulates its cells between two glass panes. This design better protects the cells from moisture, microcracks, and PID degradation, resulting in a slower power decline over time and greater resistance to harsh weather conditions such as strong wind or hail. ### What warranty comes with the Yingli YLM 3.0 Plus 1 panels? The manufacturer offers a 12-year product warranty along with a 30-year linear power output warranty. This means that after 30 years of operation, the panel should still retain the guaranteed minimum percentage of its initial output, a standard expectation for modern glass-glass modules from a tier 1 manufacturer. ### Is the YLM 3.0 Plus 1 suited for large-scale PV farms or more for residential roofs? This series is designed primarily for commercial installations and utility-scale PV farms, where predictable energy yield and long-term durability matter more than raw datasheet figures. Its large format and high unit power (up to 670 Wp) make it better suited to large mounting areas than to a typical single-family sloped roof. ### Are the YLM 3.0 Plus 1 panels bifacial, generating power from the rear side? No, the YLM 3.0 Plus 1 series uses standard monofacial PERC cell architecture. The glass-glass construction here is meant to boost durability and environmental resistance, not add rear-side power generation - this sets it apart from bifacial models in Yingli's lineup. ### Who manufactures the YLM 3.0 Plus 1 panels, and is it a reliable tier 1 supplier? The YLM 3.0 Plus 1 panels are made by Yingli, a Chinese manufacturer with decades of industry experience, classified as a tier 1 supplier. This reflects solid financial standing and proven manufacturing capacity, which matters when pursuing warranty claims over the multi-decade lifespan of a PV installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1753058813947-0d996e6aa81c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, cooler, +3.9 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | Cooler, +3.7 pp, +5 yr warranty | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +3.7 pp | | [Yingli YL580DF60f/2](https://comparepv.com/panel/yingli-yl580df60f-2) | 580 W | Heavier, +5 yr warranty | | [Yingli YL590DF60f/2](https://comparepv.com/panel/yingli-yl590df60f-2) | 590 W | Heavier, +5 yr warranty | | [Yingli YL595D-41f 1/2 / YL595D-41f 1500V 1/2](https://comparepv.com/panel/yingli-yl595d-41f-1-2-yl595d-41f-1500v-1-2) | 595 W | +10 W, +0.3 pp | | [Yingli YL600DF60f/2](https://comparepv.com/panel/yingli-yl600df60f-2) | 600 W | Heavier, +0.5 pp, +5 yr warranty | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | +95 W, +3.3 pp, +5 yr warranty | | [Gamko New Energy GKA210N120-675](https://comparepv.com/panel/gamko-new-energy-gka210n120-675) | 675 W | +90 W, +3.2 pp, +5 yr warranty | | [Q-SUN Solar QN-670HJT-01](https://comparepv.com/panel/q-sun-solar-qn-670hjt-01) | 670 W | +85 W, cooler, +3.0 pp | | [Gamko New Energy GKA210N120-670](https://comparepv.com/panel/gamko-new-energy-gka210n120-670) | 670 W | +85 W, +3.0 pp, +5 yr warranty | | [Q-SUN Solar QN-665HJT-01](https://comparepv.com/panel/q-sun-solar-qn-665hjt-01) | 665 W | +80 W, cooler, +2.8 pp | | [Gamko New Energy GKA210N120-665](https://comparepv.com/panel/gamko-new-energy-gka210n120-665) | 665 W | +80 W, +2.8 pp, +5 yr warranty | | [Sunpro Power SPDG660-N120M12](https://comparepv.com/panel/sunpro-spdg660-n120m12) | 660 W | +75 W, +2.6 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/yingli-yl585d-41f-1-2-yl585d-41f-1500v-1-2 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.