--- title: "Exiom EX555MB(144)182 555W Solar Panel - Specs & Review | ComparePV" description: "Exiom EX555MB(144)182 555W solar panel. Specs: 21.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/exiom-ex555mb-144-182" updated: 2026-09-11 --- # Exiom EX555MB(144)182 Light for its output, no clear weak spot 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Exiom - **Model:** EX555MB(144)182 - **Series:** EX540-560M(B)-144(HC)(182) - **Rated power:** 555 W - **Cell technology:** PERC ## 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 | Typical | 8,148 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 27.3 kg | 30.8 kg | Strong - top 16% | | | 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 | Typical | 8,148 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 49.2 | 52.7 | Strong - top 16% | 2,789 | | Performance warranty | 30 yrs | 27 yrs | Strong - top 25% | 21 | ### Strengths - **49.2 kg per kWp** - Top 16% of the PERC 550-600 W segment, against a median of 52.7. - **21.50% module efficiency** - Top 18% of the PERC 550-600 W segment, against a median of 21.29%. - **30 year performance warranty** - Top 25% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 555 W - **Efficiency:** 21.50 % - **Voltage at Pmax (Vmp):** 42.11 V - **Current at Pmax (Imp):** 13.18 A - **Open-circuit voltage (Voc):** 50.02 V - **Short-circuit current (Isc):** 14.07 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:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Weight:** 27.3 kg - **Area:** 2.58 m2 - **Power density:** 214.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7958 of 14005 | | Power density | 8148 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 2789 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-Year Linear Power Warranty** - The manufacturer guarantees module performance for 30 years, surpassing the market-standard 25-year linear power warranty applied by comparable competitors such as DAH Solar and Premier Energies in the 540–560 Wp segment. For commercial and industrial installations, this translates into genuinely longer investment protection and a more favorable LCOE calculation. - **European Manufacturer — Factory in Spain** - In late 2024, Exiom commissioned a 500 MW PV module manufacturing facility in Langreo, Asturias, in partnership with Iberdrola — the first large-scale PV panel factory in Spain. European origin is a critical differentiator in EU public tenders subject to the Carbon Border Adjustment Mechanism (CBAM) and in projects drawing on European support schemes that require a local supply chain. - **Half-Cut + MBB on M10 (182 mm) Wafers** - The combination of half-cut cells (144 HC), multi-busbar (MBB) interconnection technology, and the 182 mm wafer format minimizes internal resistive losses and the risk of microcracks, while achieving 540–560 Wp in a compact 144-cell layout. Compared with the G12 (210 mm) format, this eases logistics and installation on standard racking structures originally designed for older module formats. - **Peak Efficiency of 21.7% on Par with Segment Leaders** - The top variant in the series reaches 21.7% module efficiency, virtually identical to the DAH Solar DHM-T72X10/BF (21.72%) and Goldi Solar GS10-B144-GF (21.7%). On constrained roof areas — commercial and industrial rooftops — this delivers comparable energy yield per m² to the leading manufacturers in this power class. ## Cons - **No BNEF Tier-1 Status (Bankability)** - Exiom does not appear on the BloombergNEF Tier 1 bankable manufacturers list (as of Q1 2026). In practice, this complicates debt financing for large-scale installations through independent commercial banks and may be a disqualifying factor in EPC tenders or project-finance transactions where module bankability is a formal due-diligence requirement. - **P-Type PERC Technology Against N-Type Market Dominance** - The series is based on P-type PERC cells, while the market has been consolidating around N-type TOPCon since 2023–2024 (annual degradation ~0.40%/yr for TOPCon vs. ~0.55%/yr for PERC, with no LID effect in year one). Exiom itself already offers a newer TOPCon line — the EX565-585TC(B)-144(HC)(182) series — meaning this series is technologically superseded even within the manufacturer's own current portfolio. - **Monofacial While Peer Comparables Are Bifacial** - The series does not feature bifacial cells (is\_bifacial: false), whereas both key peer comparables — the DAH Solar DHM-T72X10/BF/FS and the Premier Energies 144 Half Cut PERC Bifacial Dual Glass — offer bifaciality with a potential additional energy yield of 5–20% from reflected irradiance. In ground-mounted commercial installations over high-albedo surfaces, the difference in annual energy yield is measurable and directly impacts project IRR. ## About this series The Exiom EX540-560M(B)-144(HC)(182) module series is a technologically advanced solution based on **M10-type monocrystalline cells**, which significantly increases solar energy conversion efficiency in challenging operating conditions. Thanks to the use of **Half-Cut design and Multi-Busbar (MBB) technology**, these panels effectively minimize internal losses and reduce the risk of micro-cracks, which directly translates into stable operation for decades. The use of larger 182 mm silicon wafers allows for high power output per unit, which is key to optimizing installation and support structure costs while maintaining high efficiency. These modules solve the problem of limited installation space, offering maximum yield from every square meter of roof or ground. Their **high resistance to the PID phenomenon** and excellent temperature parameters make this series stand out from the competition with stable energy production even on hot days. This product is primarily dedicated to demanding **commercial and industrial installations**, where a fast return on investment and the highest component reliability are essential. Exceptional mechanical resistance to snow and wind loads guarantees the safety of the entire system in variable weather conditions, typical for the Polish climate. ## Notable figures - At 21.5% efficiency, this panel is on par with typical \*\*PERC 550-600W\*\* modules - Power density of 214.8 W/m² matches the \*\*PERC 550-600W\*\* median - Temperature coefficient of -0.35%/°C matches the \*\*PERC 550-600W\*\* median - At 27.3 kg, this panel is 3.5 kg lighter than \*\*PERC 550-600W\*\* median (30.8 kg) - easier handling during installation - #7958 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What warranty is offered on the Exiom EX540-560M(B)-144(HC)(182) series panels? The Exiom EX540-560M(B)-144(HC)(182) series comes with a 25-year product warranty covering manufacturing defects and a 30-year linear power output warranty. This means the manufacturer guarantees a defined minimum power yield over three decades of operation — a specification that exceeds the market standard of typically 25 years. This is a compelling factor when calculating return on investment for commercial PV installations. ### Will the Exiom EX540-560M panels perform well on hot days and in the Polish climate? Yes. The monocrystalline PERC cell technology used in the EX540-560M(B)-144(HC)(182) series features a power temperature coefficient of approximately -0.35%/°C, resulting in minimal power losses during high-temperature conditions compared to older cell technologies. The half-cut cell design further reduces module operating temperature, while the high PID resistance ensures stable energy production both during summer heat and in the cooler, variable conditions typical of the Polish climate. ### What is half-cut and Multi-Busbar (MBB) technology in the Exiom EX560M panels, and does it actually matter? Half-cut technology involves splitting each cell in half, which halves the current flowing through each individual cell. Lower current means reduced resistive losses and a lower risk of microcracks during transport and long-term use. Multi-Busbar (MBB) adds more thin current-collecting conductors, shortening the electron path and improving resistance to degradation. In practice, these two technologies combine to deliver higher module efficiency and a longer operational lifespan for the entire installation. ### How much does the Exiom EX540-560M(B)-144(HC)(182) panel weigh, and is it suitable for a standard industrial rooftop? The module dimensions are approximately 2279 mm × 1134 mm and it weighs approximately 27–29 kg. These are typical specifications for the M10 format (182 mm wafer) 144-cell class. The vast majority of standard mounting structures used on industrial buildings and warehouses are designed to accommodate modules with these parameters. Nevertheless, it is always advisable to verify the roof load-bearing capacity and mounting system selection with a certified installer prior to commissioning. ### Is Exiom a reliable manufacturer, and where does the company come from? Exiom Solution is a Spanish photovoltaic module manufacturer headquartered in Asturias. The company is collaborating with Iberdrola on the construction of the first large-scale PV module factory in Spain. Modules in this series are manufactured in compliance with IEC standards and carry all certifications required for the European market. The manufacturer offers one of the longest warranty coverages in its segment — 30 years on power output — which reflects the company's confidence in the long-term durability of its products. ### What is the maximum power output of the Exiom EX540-560M panels, and what types of installations are they designed for? The EX540-560M(B)-144(HC)(182) series covers modules ranging from 540 Wp to 560 Wp peak power, with module efficiency reaching approximately 21%. The high per-unit power output makes this series primarily suited to commercial and industrial installations where maximizing energy yield from limited roof or ground area and achieving a rapid return on investment are the key priorities. The high wattage ratings also make these modules well-suited for utility-scale ground-mounted solar farm projects. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EX540-560MB-144HC182-8be2cb1ef22f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | -45 W, cooler, +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 | -50 W, cooler, +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 | | [Exiom EX345AGR-182](https://comparepv.com/panel/exiom-ex345agr-182) | 345 W | -210 W, -8.1 pp, -5 yr warranty | | [Exiom EX350AGR-182](https://comparepv.com/panel/exiom-ex350agr-182) | 350 W | -205 W, -8.0 pp, -5 yr warranty | | [Exiom EX355AGR-182](https://comparepv.com/panel/exiom-ex355agr-182) | 355 W | -200 W, -7.8 pp, -5 yr warranty | | [Exiom EX360AGR-182](https://comparepv.com/panel/exiom-ex360agr-182) | 360 W | -195 W, -7.6 pp, -5 yr warranty | | [Exiom EX365AGR-182](https://comparepv.com/panel/exiom-ex365agr-182) | 365 W | -190 W, -7.4 pp, -5 yr warranty | | [Exiom EX530MB-144BF](https://comparepv.com/panel/exiom-ex530mb-144bf) | 530 W | -25 W, heavier, -1.0 pp | | [Exiom EX535MB-144BF](https://comparepv.com/panel/exiom-ex535mb-144bf) | 535 W | -20 W, heavier, -0.8 pp | | [Exiom EX540MB-144BF](https://comparepv.com/panel/exiom-ex540mb-144bf) | 540 W | -15 W, heavier, -0.6 pp | | [Exiom EX545MB-144BF](https://comparepv.com/panel/exiom-ex545mb-144bf) | 545 W | -10 W, heavier, -0.4 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +95 W, cooler, +3.7 pp | --- Source: https://comparepv.com/panel/exiom-ex555mb-144-182 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.