--- title: "Solar N Plus SP-N16/144HG-595 595W Solar Panel - Specs & Review | ComparePV" description: "Solar N Plus SP-N16/144HG-595 595W solar panel. Specs: 23.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-n-plus-sp-n16-144hg-595" updated: 2026-09-11 --- # Solar N Plus SP-N16/144HG-595 Space saver, no clear weak spot 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** Solar N Plus - **Model:** SP-N16/144HG-595 - **Series:** SP-N16/144HG - **Rated power:** 595 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 550-600 W (1018 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 595 W | 580 W | Strong - top 5% | | | Module efficiency | 23.00% | 22.44% | Strong - top 10% | 1,919 | | Power density | 230.3 | 224.4 | Strong - top 7% | 1,758 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 31.5 kg | 31.2 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.00% | 22.44% | Strong - top 10% | 1,919 | | Power density | 230.3 | 224.4 | Strong - top 7% | 1,758 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.9 | 53.8 | Typical | 6,657 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **230.3 watts per square metre** - Top 7% of the TOPCon 550-600 W segment, against a median of 224.4. Ranked 1,758th in the whole database. - **23.00% module efficiency** - Top 10% of the TOPCon 550-600 W segment, against a median of 22.44%. Ranked 1,919th in the whole database. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 595 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 45.75 V - **Current at Pmax (Imp):** 13.01 A - **Open-circuit voltage (Voc):** 53.20 V - **Short-circuit current (Isc):** 13.72 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:** TOPCon - **Cell count:** 144 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.5 kg - **Area:** 2.58 m2 - **Power density:** 230.3 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:** 520 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1919 of 14005 | | Power density | 1758 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 6657 of 14005 | | Warranty | 21 of 14005 | ## About this series The Solar N Plus SP-N16/144HG series has been designed to maximize energy yields under real-world conditions, even when the roof or ground does not provide ideal exposure. These are **bifacial** modules based on **N-type TOPCon** technology, which can effectively utilize reflected light from the ground, increasing energy production without requiring any expansion of the installation. The **dual-glass** construction improves resistance to moisture, temperature changes, and loads, which translates into more stable operation in demanding locations, such as PV farms, carport structures, or industrial halls. This series also features **low degradation** and excellent performance in hot weather - a better temperature coefficient means fewer losses on hot days when other modules experience a more significant drop in performance. SP-N16/144HG is the choice for investors who prioritize LCOE, want to minimize maintenance risks, and expect predictable production for many years. ## Notable figures - At 23.0% efficiency, this panel is 0.6pp above typical \*\*TOPCon 550-600W\*\* modules (median: 22.4%) - 230.3 W/m² power density - 5.9 W/m² more than \*\*TOPCon 550-600W\*\* median (224.4 W/m²), more power per roof area - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 550-600W\*\* panels - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - In the top 14% for efficiency among all TOPCon panels ## Questions ### What warranty does the Solar N Plus SP-N16/144HG come with? The SP-N16/144HG series carries a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means the manufacturer guarantees that the module will not fall below a defined performance threshold for three decades. It is one of the longer power warranty standards on the market, especially relevant when calculating LCOE for larger-scale installations. ### What does bifacial mean for the SP-N16/144HG and does it actually increase energy yield? Bifacial means the module generates power from both sides — not just the front, but also from light reflected off the ground (albedo). In the SP-N16/144HG, the combination of N-type TOPCon cells and dual-glass construction can deliver an additional 5–20% energy depending on ground surface and tilt angle. The highest gains come from highly reflective surfaces: white gravel, concrete, or snow. On a typical pitched roof the uplift is smaller, but still measurable. ### Do the Solar N Plus SP-N16/144HG panels perform well in hot weather and high temperatures? Yes. N-type TOPCon technology features a better temperature coefficient than older PERC cells. In practice, this means lower power losses on hot days — while standard modules degrade noticeably above 25°C, the SP-N16/144HG maintains more stable output. This matters especially for flat-roof installations on industrial buildings or ground-mount arrays, where modules are exposed to more intense heat buildup. ### What installations is the SP-N16/144HG series best suited for — rooftop or ground-mount? At up to 600 Wp, the SP-N16/144HG is a utility and commercial-class module designed primarily for solar farms, carports, and large-scale rooftop installations on industrial halls and warehouses. The dual-glass construction provides resistance to moisture and mechanical loads, which is critical in demanding locations. For residential rooftop prosumer systems, a smaller module from the same N-type TOPCon technology family would be a better fit. ### How does the low degradation of the SP-N16/144HG affect return on investment? N-type TOPCon cells have one of the lowest annual degradation rates on the market — typically below 0.40–0.45% per year, compared to 0.55–0.70% for standard PERC modules. Over a 30-year operational period, that difference compounds to several percentage points of total energy output, directly lowering LCOE. For investors evaluating a project over multiple decades, the SP-N16/144HG delivers more predictable and higher cumulative yield throughout the module's lifetime. ### Is Solar N Plus a Tier 1 manufacturer and how does that affect project financing? Solar N Plus is not currently listed as a Tier 1 manufacturer by major rating agencies such as BloombergNEF. This does not necessarily indicate lower module quality, but some lenders and insurers may require additional technical due diligence or credit enhancements for bankable projects. Before committing to a larger solar farm, it is advisable to confirm the manufacturer's acceptability with the financing institution or insurance provider. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/sp-n16-144hg570-600w-2024v3-0-8d9d65156daf.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +50 W, lighter, +2.0 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -35 W, lighter, +1.8 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +45 W, lighter, +1.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -40 W, lighter, +1.6 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +40 W, lighter, +1.6 pp | | [Solar N Plus SP-M10/144HG-540](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-540) | 540 W | -55 W, hotter, -2.1 pp | | [Solar N Plus SP-M10/144HG-545](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-545) | 545 W | -50 W, hotter, -1.9 pp | | [Solar N Plus SP-M10/144HG-550](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-550) | 550 W | -45 W, hotter, -1.7 pp | | [Solar N Plus SP-M10/144HG-555](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-555) | 555 W | -40 W, hotter, -1.5 pp | | [Solar N Plus SP-M10/144HG-560](https://comparepv.com/panel/solar-n-plus-sp-m10-144hg-560) | 560 W | -35 W, hotter, -1.3 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +55 W, lighter, +2.2 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +35 W, cooler, +1.4 pp | --- Source: https://comparepv.com/panel/solar-n-plus-sp-n16-144hg-595 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.