--- title: "Sunpro Power SPDG590-N132RX10 590W Solar Panel - Specs & Review | ComparePV" description: "Sunpro Power SPDG590-N132RX10 590W solar panel. Specs: 22.83% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunpro-spdg590-n132rx10" updated: 2026-09-11 --- # Sunpro Power SPDG590-N132RX10 Space saver, no clear weak spot 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** Sunpro Power - **Model:** SPDG590-N132RX10 - **Series:** 199R TOPCon BIFACIAL - **Rated power:** 590 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) | 590 W | 580 W | Strong - top 18% | | | Module efficiency | 22.83% | 22.44% | Strong - top 19% | 2,683 | | Power density | 228.4 | 224.4 | Strong - top 17% | 2,598 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 31.0 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 | 22.83% | 22.44% | Strong - top 19% | 2,683 | | Power density | 228.4 | 224.4 | Strong - top 17% | 2,598 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 52.5 | 53.8 | Typical | 6,152 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **228.4 watts per square metre** - Top 17% of the TOPCon 550-600 W segment, against a median of 224.4. - **22.83% module efficiency** - Top 19% of the TOPCon 550-600 W segment, against a median of 22.44%. - **Best for:** Utility-scale and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 590 W - **Efficiency:** 22.83 % - **Voltage at Pmax (Vmp):** 40.75 V - **Current at Pmax (Imp):** 14.48 A - **Open-circuit voltage (Voc):** 48.61 V - **Short-circuit current (Isc):** 15.31 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 15.00 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.0 kg - **Area:** 2.58 m2 - **Power density:** 228.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 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:** 516 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2683 of 14005 | | Power density | 2598 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 6152 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunpro 199R TOPCon BIFACIAL series is an advanced solution based on rectangular N-type cells that maximize module surface utilization. Thanks to the use of **bifacial dual glass** technology, these panels effectively generate additional energy from both sides, making them an ideal choice for ground-mounted installations and flat roofs with bright roofing. A key differentiator is the use of **TOPCon cells**, which guarantee higher conversion efficiency and excellent performance even in low light conditions, which is a priority in the Polish climate zone. These modules effectively eliminate light-induced degradation, offering users **minimal power loss** over several decades of operation. The robust dual-glass construction ensures extraordinary resistance to corrosive factors and extreme mechanical loads, significantly surpassing standard monofacial modules. This series was created for investors seeking **maximum power density** while reducing BOS system costs. What sets them apart from the competition is the unique cell format, which simplifies logistics and installation, making these panels the most cost-effective choice for professional photovoltaic farms and modern enterprises focusing on energy self-consumption. ## Notable figures - At 22.8% efficiency, this panel is on par with typical \*\*TOPCon 550-600W\*\* modules - At 228.4 W/m² power density, this panel generates 4.0 W/m² more per unit area than \*\*TOPCon 550-600W\*\* median (224.4 W/m²) - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 550-600W\*\* median - #2683 for efficiency, #6093 for temperature performance out of 14005 panels ## Questions ### How does the Sunpro 199R TOPCon BIFACIAL panel differ from standard monofacial modules? The 199R series uses bifacial dual glass technology, meaning the module generates power from both the front and rear sides. With proper installation, such as on a light-colored ground surface or flat roof, this results in a higher energy yield compared to standard monofacial panels of similar surface area. ### What is the maximum power output of the 199R TOPCon BIFACIAL series? Panels in this series reach up to 640 Wp of maximum power output. This is a high value for a single module, achieved through rectangular N-type TOPCon cells that make better use of the available surface area and deliver higher conversion efficiency. ### What warranty applies to the Sunpro 199R TOPCon BIFACIAL panels? The manufacturer offers a 25-year product warranty and a 30-year linear power output warranty. This means that over three decades of use, the panel maintains its guaranteed power level, with minimal degradation thanks to TOPCon technology reducing light-induced degradation. ### Are the 199R bifacial TOPCon panels suitable for a sloped roof installation? These panels are primarily designed for ground-mounted systems and flat roofs with light-colored surfaces, where the bifacial gain is best utilized. On a sloped roof with a dark surface, the rear side won't receive enough reflected light, so the benefit of bifacial technology will be limited. ### Do TOPCon panels perform well in low-irradiance climates like Poland's? Yes, N-type TOPCon cells offer better performance under low irradiance and lower temperatures compared to older PERC technology. This is a significant advantage in Poland's climate, where much of the year involves diffuse or weaker sunlight, yet the module still generates power efficiently. ### Who manufactures Sunpro Power panels, and are they a Tier 1 supplier? Sunpro Power is headquartered in China and classified as a Tier 1 manufacturer, indicating financial stability, large production capacity, and years of experience in the solar industry. Tier 1 status is an important criterion for project bankability and the long-term reliability of warranty claims. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/topcon-spdgxxx-n132rx10-575-590w-30mm-9bed03f53255.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +50 W, lighter, +2.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +1.8 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +45 W, lighter, +1.8 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +40 W, cooler, +1.6 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | -40 W, lighter, +1.6 pp | | [Sunpro Power SPDG575-N132RX10](https://comparepv.com/panel/sunpro-spdg575-n132rx10) | 575 W | -15 W, -0.6 pp | | [Sunpro Power SPDG580-N132RX10](https://comparepv.com/panel/sunpro-spdg580-n132rx10) | 580 W | -10 W, -0.4 pp | | [Sunpro Power SPDG585-N144M10](https://comparepv.com/panel/sunpro-spdg585-n144m10) | 585 W | Very close match | | [Sunpro Power SPDG595-N144M10](https://comparepv.com/panel/sunpro-spdg595-n144m10) | 595 W | Very close match | | [Sunpro Power SPDG600-N144M10](https://comparepv.com/panel/sunpro-spdg600-n144m10) | 600 W | +10 W, +0.4 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +60 W, lighter, +2.4 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +55 W, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/sunpro-spdg590-n132rx10 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.