--- title: "Phono Solar NS-585MH-144 Solar Panel: Specs & Datasheet | ComparePV" description: "Phono Solar NS-585MH-144 solar panel. Specs: 22.63% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/phono-solar-ns-585mh-144" image: "https://comparepv.com/og/panel/phono-solar-ns-585mh-144.png" updated: 2026-09-11 --- # Phono Solar NS-585MH-144 Light for its output, short guarantee 256 panels in the segment N-type 550-600 W ## Identity - **Manufacturer:** Phono Solar - **Model:** NS-585MH-144 - **Series:** Monocrystalline 144 (NS-xxxMH-144) - **Rated power:** 585 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 550-600 W (256 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 22.63% | 22.45% | Typical | 3,679 | | Power density | 226.4 | 224.5 | Typical | 3,689 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 26.0 kg | 30.2 kg | Strong - top 2% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 9% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.63% | 22.45% | Typical | 3,679 | | Power density | 226.4 | 224.5 | Typical | 3,689 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 44.4 | 52.5 | Strong - top 2% | 455 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 9% | 9,912 | ### Strengths - **44.4 kg per kWp** - Top 2% of the N-type 550-600 W segment, against a median of 52.5. Ranked 455th in the whole database. ### Watch out for - **25 year performance warranty** - Bottom 9% of the N-type 550-600 W segment, against a median of 30 yrs. Ranked 9,912th in the whole database. - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 22.63 % - **Voltage at Pmax (Vmp):** 42.98 V - **Current at Pmax (Imp):** 13.62 A - **Open-circuit voltage (Voc):** 51.40 V - **Short-circuit current (Isc):** 14.58 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 144 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.0 kg - **Area:** 2.58 m2 - **Power density:** 226.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3679 of 14129 | | Power density | 3689 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 455 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **N-type cells with lower LID degradation** - N-type cells replace the older PERC technology, delivering a lower light-induced degradation (LID) coefficient and better high-temperature performance, which translates into a higher real-world annual energy yield compared to comparable P-type modules. - **Tier-1 BNEF status since 2014** - Phono Solar has appeared on the Bloomberg NEF Tier-1 list continuously since 2014, confirming financial stability and real-world enforceability of long-term warranties - a key bankability criterion for investors and financing banks. - **Efficiency up to 22.63%, competitive in segment** - Peak efficiency of 22.63% is essentially on par with segment leaders (Hanersun Hitouch 5N 22.65%, Q-SUN Qrystal N8 22.65%) and clearly above Risen RSM144-9 (22.6%), despite the series being based on a platform sold since 2018. - **Half-cut design reduces electrical losses** - Splitting the 144 cells into halves reduces resistive losses and improves partial-shading behavior, while the refined electrical design delivers PID resistance and reduced hot-spot risk. - **Established market presence since 2018** - The series has been in continuous production since 2018 (8 years on the market, not discontinued), reflecting mature QA processes and a documented field-reliability track record in rooftop and ground-mount installations, unlike many newer N-type models without a long operating history. ## Cons - **25-year power warranty, shorter than peers** - The manufacturer offers a 25-year linear power warranty, while direct N-type competitors - Risen RSM144-9-560-585BNDG and Hanersun Hitouch 5N/6N - provide a 30-year linear warranty (87.4% power retention at year 30). This is a real gap when comparing total lifecycle cost of the installation. - **No bifacial variant available** - The series is monofacial only (is\_bifacial: false), whereas 2 of 3 direct peer comparables - Risen RSM144-9-560-585BNDG (dual glass) and Hanersun Hitouch 5N (~85% bifaciality) - offer a bifacial version, providing additional energy yield in ground-mount or high-albedo installations. - **Efficiency slightly below segment leader** - Peak efficiency of 22.63% is 0.02 percentage points lower than Hanersun Hitouch 5N and Q-SUN Qrystal N8 (22.65%). The gap is marginal but can matter for total installed capacity in large arrays with limited roof area. ## About this series The Phono Solar Monocrystalline 144 (NS-xxxMH-144) series are modules with a 144-cell layout in a half-cut version, designed for stable operation in real roof and ground conditions. The use of monocrystalline cells with PERC technology helps to better utilize solar radiation in conditions of weaker sunlight and higher temperatures, while the half-cut cell design reduces resistance losses and improves performance in partially shaded conditions. This translates to more energy from the same surface area, and a lower risk of yield loss when only part of the module is shaded. Another advantage is **PID resistance** and **reduced risk of hot spots** due to the refined electrical design. For use in demanding climates, **high mechanical strength** and a tight junction box are also beneficial. This is a reasonable choice for installers and investors who expect **consistent quality** and predictable performance in residential, commercial, and larger grid-tied systems. ## Notable figures - At 22.6% efficiency, this panel is on par with typical \*\*N-type 550-600W\*\* modules - Power density of 226.4 W/m² matches the \*\*N-type 550-600W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*N-type 550-600W\*\* median - 26.0 kg weight - 4.3 kg lighter than \*\*N-type 550-600W\*\* median (30.3 kg), reducing installation effort - #3679 for efficiency, #2220 for temperature performance out of 14129 panels ## Questions ### What is the maximum power output of the Phono Solar Monocrystalline 144 NS-xxxMH-144 series, and what systems is it designed for? The top variant in this series reaches 585 Wp. The 144 half-cut cell layout makes the modules a solid fit for residential rooftop installations, commercial flat and pitched roofs, and larger on-grid ground-mount systems. Strong low-irradiance performance is a practical advantage in regions with variable or overcast weather, where modules with poor weak-light response leave measurable annual yield on the table. ### What warranties are offered for Phono Solar NS-xxxMH-144 panels - product and power output? Phono Solar provides a 15-year product warranty covering material defects and workmanship, plus a 25-year linear power warranty guaranteeing a specified minimum output over the module's service life. This warranty structure is a meaningful input for LCOE calculations and gives investors a reliable baseline for long-term return-on-investment projections. ### How does the Phono Solar NS-xxxMH-144 series handle partial shading from chimneys, dormers, or antennas? The half-cut cell design splits the module into two independent electrical sub-circuits, so when shade covers only part of the panel, the overall power loss is significantly lower than in conventional full-cell modules. This is a real advantage on rooftops with chimneys, dormers, or nearby trees where moving shadows are common throughout the day and can otherwise cause disproportionate MPPT losses. ### What does N-type cell technology in the Phono Solar NS-xxxMH-144 series mean for real-world system performance? N-type cells have a lower susceptibility to light-induced degradation (LID) and a better temperature coefficient than conventional P-type cells. In practice, the panel retains more of its rated output across its entire service life, and power losses on hot summer days are kept lower. For system owners, this translates into a better LCOE and a faster payback compared with equivalent P-type modules. ### Are Phono Solar NS-xxxMH-144 modules resistant to PID and hot-spots? Yes. The series is built with PID (Potential Induced Degradation) resistance, which is critical in large string systems operating at high DC voltages. The half-cut cell configuration also reduces the risk of hot-spots - localized cell overheating that can permanently degrade output power and shorten module lifespan - thanks to lower current per cell half and improved electrical architecture. ### How do Phono Solar NS-xxxMH-144 modules hold up in harsh weather - frost, strong wind, and hail? The series is engineered for demanding climates. The anodized aluminum frame and rated junction box protect against moisture ingress and frost. Certification for this module class typically covers 5,400 Pa snow load, 2,400 Pa wind load, and 25 mm hail at 80 km/h - mechanical thresholds that provide adequate safety margins for most Central European installation sites, including high-altitude or coastal locations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ns-565-585mh-144-2279-1134-30black-b601d0dbe357.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +2.2 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -30 W, +2.0 pp, +5 yr warranty | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, +2.0 pp, +5 yr warranty | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | Heavier, +1.8 pp, +5 yr warranty | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Lighter, +1.8 pp, +5 yr warranty | | [Phono Solar PS535M8GF-24/TH](https://comparepv.com/panel/phono-solar-ps535m8gf-24-th) | 535 W | -50 W, heavier, -1.9 pp | | [Phono Solar PS540M8-24/TH](https://comparepv.com/panel/phono-solar-phono-solar-technology-co-ltd-ps540m8-24-th) | 540 W | -45 W, hotter, -1.7 pp | | [Phono Solar PS545M8-24/TH](https://comparepv.com/panel/phono-solar-phono-solar-technology-co-ltd-ps545m8-24-th) | 545 W | -40 W, hotter, -1.5 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, +2.6 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, +2.4 pp, +5 yr warranty | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, +2.2 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/phono-solar-ns-585mh-144 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.