--- title: "Solar N Plus SP-N16/144H-585 585W Solar Panel - Specs & Review | ComparePV" description: "Solar N Plus SP-N16/144H-585 585W solar panel. Specs: 22.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-n-plus-sp-n16-144h-585" updated: 2026-09-11 --- # Solar N Plus SP-N16/144H-585 Efficiency leader, no clear weak spot 259 panels in the segment N-type 550-600 W ## Identity - **Manufacturer:** Solar N Plus - **Model:** SP-N16/144H-585 - **Series:** SP-N16/144H - **Rated power:** 585 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 550-600 W (259 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 22.70% | 22.45% | Strong - top 24% | 3,307 | | Power density | 226.5 | 224.5 | Typical | 3,500 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 28.5 kg | 29.5 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.70% | 22.45% | Strong - top 24% | 3,307 | | Power density | 226.5 | 224.5 | Typical | 3,500 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 48.7 | 52.3 | Typical | 2,431 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.70% module efficiency** - Top 24% of the N-type 550-600 W segment, against a median of 22.45%. - **Best for:** Utility-scale, commercial, hot-climate and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 22.70 % - **Voltage at Pmax (Vmp):** 45.35 V - **Current at Pmax (Imp):** 12.90 A - **Open-circuit voltage (Voc):** 52.80 V - **Short-circuit current (Isc):** 13.62 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:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 144 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 28.5 kg - **Area:** 2.58 m2 - **Power density:** 226.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 511 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3307 of 14005 | | Power density | 3500 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 2431 of 14005 | | Warranty | 21 of 14005 | ## About this series The Solar N Plus SP-N16/144H series is designed for high energy production from the same roof area - these are modules based on N-type TOPCon cells, which maintain their efficiency better in real operating conditions. A key advantage is **low sensitivity to high temperatures**, which ensures more stable operation in summer and in poorly ventilated areas. In practice, this means more predictable yields and easier planning of self-consumption. This series of modules also stands out due to **high resistance to LID and PID degradation**, which limits power losses over time and improves profitability throughout the product lifecycle. The use of half-cut and multi-busbar technology results in **better performance under partial shading** and reduced losses due to microcracks. SP-N16/144H is a good choice for PV farms, industrial facilities, and large commercial roofs, where **low long-term energy costs** and comparable reliability to top-tier N-type modules on the market are important. ## Notable figures - At 22.7% efficiency, this panel is on par with typical \*\*N-type 550-600W\*\* modules - Power density of 226.5 W/m² matches the \*\*N-type 550-600W\*\* median - At -0.29%/°C, hot weather performance is typical for \*\*N-type 550-600W\*\* panels - At 28.5 kg, weight matches the \*\*N-type 550-600W\*\* median - In the top 24% for efficiency among all N-type panels ## Questions ### What warranty does the Solar N Plus SP-N16/144H come with? The manufacturer provides a 15-year product warranty covering physical defects and material faults, plus a 30-year power output warranty. Over those 30 years the module is guaranteed to maintain at least the minimum efficiency stated in the datasheet. This coverage is standard for commercial-grade N-type modules and protects the investment throughout the typical service life of a PV system. ### How does TOPCon technology in the SP-N16/144H differ from standard PERC cells? TOPCon N-type cells feature an ultra-thin tunnel oxide passivation layer that significantly reduces charge-carrier recombination. The result is higher efficiency and stronger resistance to both LID (Light Induced Degradation) and PID (Potential Induced Degradation) compared to P-type PERC cells. In practice, this means a slower power decline over the full 30-year system life and a lower overall LCOE for the installation. ### Do SP-N16/144H modules perform well during hot summer days? Yes, this is one of the key advantages of the series. N-type TOPCon cells have a lower temperature coefficient than older PERC modules, meaning smaller power losses at elevated cell temperatures. Installations on heavily sun-exposed industrial rooftops or facilities with limited airflow maintain higher efficiency on hot days, resulting in more predictable annual energy yield and easier self-consumption planning. ### Do SP-N16/144H panels handle partial shading well — for example from a chimney or dormers? Yes. The half-cut cell layout with 144 cells combined with multi-busbar technology reduces the impact of partial shading on the entire string. Lower operating currents minimize resistive losses and hotspot risk. This is a significant advantage for rooftops where a chimney, neighboring building, or dormers may cast shadows across part of the array during the day. ### Is the SP-N16/144H a bifacial module — does it generate power from both sides? No, the SP-N16/144H is a monofacial module — energy is harvested from the front surface only. The manufacturer did not use a transparent backsheet or glass-glass construction, which simplifies installation and lowers overall BoS costs. The design is well suited for pitched and flat roofs with standard racking where albedo reflection from the surface would be minimal anyway. ### What type of projects is the Solar N Plus SP-N16/144H series best suited for? With a maximum output of 600 Wp per module, the SP-N16/144H targets utility-scale PV farms, industrial buildings, and large commercial rooftops. The high per-module wattage reduces the number of panels needed per megawatt of installed capacity, cutting BoS costs including racking, cabling, and labor. It is not a typical residential module intended for small rooftop prosumer systems. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/sp-n16-144h570-600w-2024v3-1-900cabee864e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.1 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -30 W, lighter, +1.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, cooler, +1.9 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, heavier, +1.7 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | -35 W, lighter, +1.7 pp | | [Solar N Plus SP-M10/144HG-540](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-540) | 540 W | -45 W, hotter, -1.8 pp | | [Solar N Plus SP-M10/144HG-545](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-545) | 545 W | -40 W, hotter, -1.6 pp | | [Solar N Plus SP-M10/144HG-550](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-550) | 550 W | -35 W, hotter, -1.4 pp | | [Solar N Plus SP-M10/144HG-555](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-555) | 555 W | Hotter, heavier, -1.2 pp | | [Solar N Plus SP-M10/144HG-560](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-560) | 560 W | Hotter, heavier, -1.0 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, cooler, +2.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, cooler, +2.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, cooler, +2.1 pp | --- Source: https://comparepv.com/panel/solar-n-plus-sp-n16-144h-585 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.