--- title: "Sunket New Energy SKT555M10 555W Solar Panel - Specs & Review | ComparePV" description: "Sunket New Energy SKT555M10 555W solar panel. Specs: 21.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunket-new-energy-skt555m10" updated: 2026-09-11 --- # Sunket New Energy SKT555M10 Efficiency leader, no clear weak spot 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Sunket New Energy - **Model:** SKT555M10 - **Series:** SKT530~555M10 - **Rated power:** 555 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 555 W | 560 W | Typical | | | Module efficiency | 21.50% | 21.29% | Strong - top 18% | 7,958 | | Power density | 214.8 | 212.9 | Strong - top 20% | 8,034 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 30.5 kg | 30.8 kg | Typical | | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.50% | 21.29% | Strong - top 18% | 7,958 | | Power density | 214.8 | 212.9 | Strong - top 20% | 8,034 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 55.0 | 52.7 | Typical | 9,348 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **21.50% module efficiency** - Top 18% of the PERC 550-600 W segment, against a median of 21.29%. - **214.8 watts per square metre** - Top 20% of the PERC 550-600 W segment, against a median of 212.9. - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 555 W - **Efficiency:** 21.50 % - **Voltage at Pmax (Vmp):** 42.10 V - **Current at Pmax (Imp):** 13.19 A - **Open-circuit voltage (Voc):** 49.95 V - **Short-circuit current (Isc):** 14.05 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 30.5 kg - **Area:** 2.58 m2 - **Power density:** 214.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 471 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7958 of 14005 | | Power density | 8034 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 9348 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunket New Energy SKT530-555M10 panel series is an advanced solution based on **182 mm M10 cell technology**, designed to maximize yields from limited installation space. The use of a **Half-cut structure combined with Multi-busbar (MBB) architecture** allows for a significant reduction in resistive losses and improves module performance in partial shading conditions, which directly translates into stable energy production in Polish weather conditions. These panels effectively solve the problem of high investment costs by **optimizing the LCOE ratio**, offering high unit power that reduces expenses for mounting structures and cabling. This series is primarily dedicated to commercial investors and solar farm owners looking for uncompromising efficiency and long-term reliability. What sets the SKT530-555M10 apart from the competition is the excellent balance between innovative **monocrystalline PERC cell technology** and resistance to potential-induced degradation (PID), ensuring a long system lifespan. Thanks to precise manufacturing and a reinforced frame, these modules handle heavy mechanical loads exceptionally well, serving as a solid foundation for modern prosumer and industrial energy systems. ## Notable figures - Efficiency of 21.5% matches the \*\*PERC 550-600W\*\* median - At 214.8 W/m² power density, roof space requirements are typical for \*\*PERC 550-600W\*\* panels - Temperature coefficient of -0.35%/°C matches the \*\*PERC 550-600W\*\* median - #7958 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### Is the Sunket SKT530-555M10 panel series still available for purchase? The SKT530-555M10 series has been discontinued and is no longer actively distributed. Limited stock may still be available through select wholesalers or as surplus inventory, but availability of specific wattage variants cannot be guaranteed. Buyers should verify warranty enforcement conditions before purchasing discontinued stock and consider current Sunket New Energy series or comparable alternatives. ### What warranties come with the Sunket New Energy SKT530-555M10 panels? The manufacturer offered a 15-year product warranty covering defects in materials and workmanship, alongside a 30-year linear power output warranty. Over the entire service life, modules were guaranteed to retain a specified minimum percentage of rated power. Since the series is discontinued, buyers should confirm warranty claim procedures with the seller before purchase. ### Are the SKT530-555M10 panels bifacial and how much additional energy can I expect from the rear side? Yes, the SKT530-555M10 series features a bifacial design, allowing the rear side to generate electricity from reflected irradiance. Typical bifacial gain ranges from 5% to 15%, depending on ground albedo, tilt angle, and module elevation above the surface. Ground-mounted systems installed over light gravel or concrete surfaces deliver the highest rear-side yield. ### How do Half-cut cells and Multi-busbar architecture affect SKT530-555M10 performance under partial shading? Half-cut technology splits each cell, so shading on one part of the panel only affects the upper or lower half of the module's output rather than the entire string. The Multi-busbar (MBB) layout reduces resistive losses by shortening current paths across the cell surface. In real-world installations with chimneys, antennas, or nearby trees, this translates to noticeably lower shading losses compared to conventional full-cell modules. ### What type of installations are the 555 Wp Sunket SKT530-555M10 panels best suited for? The SKT530-555M10 series was designed primarily for utility-scale solar farms and large commercial rooftop systems. The high per-module power of up to 555 Wp reduces the total number of modules needed, cutting BoS costs for racking and cabling. For residential rooftop use, the module's physical size and weight should be verified against roof load capacity before installation. ### What are M10 PERC cells and why were they chosen for the SKT530-555M10 series? PERC (Passivated Emitter and Rear Cell) is a monocrystalline technology with a passivated rear surface that reduces carrier recombination and increases cell efficiency by roughly 0.5 to 1 percentage point over standard mono cells. The M10 format uses 182 mm wafers, fitting more active area into a standard module footprint. The result is a high-output module with a strong efficiency-to-cost ratio, which directly improves LCOE for commercial energy projects. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/7-3PERC-182mm-530-555W-144Cells-Double-Glass-Bifacial-Mono-1476bb6ca094.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.1 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +2.9 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | Cooler, lighter, +2.9 pp | | [Sunket New Energy SKT530M10](https://comparepv.com/panel/sunket-new-energy-skt530m10) | 530 W | -25 W, -1.0 pp | | [Sunket New Energy SKT535M10](https://comparepv.com/panel/sunket-new-energy-skt535m10) | 535 W | -20 W, -0.8 pp | | [Sunket New Energy SKT540M10](https://comparepv.com/panel/sunket-new-energy-skt540m10) | 540 W | -15 W, -0.6 pp | | [Sunket New Energy SKT545M10-144D4](https://comparepv.com/panel/sunket-new-energy-skt545m10-144d4) | 545 W | Cooler, heavier, -0.4 pp | | [Sunket New Energy SKT550M10-144D4](https://comparepv.com/panel/sunket-new-energy-skt550m10-144d4) | 550 W | Cooler, heavier, -0.2 pp | | [Sunket New Energy SKT560M10-144D4](https://comparepv.com/panel/sunket-new-energy-skt560m10-144d4) | 560 W | Cooler, heavier | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +90 W, cooler, +3.5 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +80 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/sunket-new-energy-skt555m10 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.