--- title: "Exiom EX545MB-144BF 545W Solar Panel - Specs & Review | ComparePV" description: "Exiom EX545MB-144BF 545W solar panel. Specs: 21.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/exiom-ex545mb-144bf" updated: 2026-09-11 --- # Exiom EX545MB-144BF Efficiency leader, heavy for its output 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Exiom - **Model:** EX545MB-144BF - **Series:** EX530-550M(B)-144(HC)(182)BF - **Rated power:** 545 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 545 W | 535 W | Strong - top 12% | | | Module efficiency | 21.10% | 20.90% | Strong - top 20% | 9,297 | | Power density | 210.9 | 209.0 | Typical | 9,399 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 32.5 kg | 28.4 kg | Weak - bottom 14% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.10% | 20.90% | Strong - top 20% | 9,297 | | Power density | 210.9 | 209.0 | Typical | 9,399 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 59.6 | 53.0 | Weak - bottom 14% | 12,213 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **21.10% module efficiency** - Top 20% of the PERC 500-550 W segment, against a median of 20.90%. ### Watch out for - **59.6 kg per kWp** - Bottom 14% of the PERC 500-550 W segment, against a median of 53.0. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 545 W - **Efficiency:** 21.10 % - **Voltage at Pmax (Vmp):** 41.92 V - **Current at Pmax (Imp):** 13.00 A - **Open-circuit voltage (Voc):** 50.04 V - **Short-circuit current (Isc):** 13.84 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.272 %/degC - **Temperature coefficient of Isc:** 0.026 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 2279 mm - **Width:** 1134 mm - **Weight:** 32.5 kg - **Area:** 2.58 m2 - **Power density:** 210.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.60 % - **Output after 30 years:** 436 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9297 of 14005 | | Power density | 9399 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 12213 of 14005 | | Warranty | 21 of 14005 | ## Pros - **21.3% Efficiency Matching Segment Leaders** - The top-bin variant achieves 21.3% module efficiency, directly matching the Goldi Solar GS10-B144-TF (21.3%) and S-Energy SL65-72BGJ (21.3%), and edging out the IBC Solar 182M Half Cell (21.28%). The series holds its own against comparable products from manufacturers with considerably stronger market presence. - **Ga-Doped PERC Eliminates LID and LeTID** - Gallium doping in place of conventional boron effectively eliminates both light-induced degradation (LID) and light and elevated temperature-induced degradation (LeTID). Research from PV Tech and LONGi confirms that boron-doped cells exhibit sustained degradation of ~1.3–2.3%, whereas gallium-doped cells stabilize with virtually no power loss — directly improving energy yield across the full 30-year operational lifetime. - **Bifacial Dual-Glass Construction** - The dual-glass bifacial design eliminates the rear-side EVA backsheet, improving mechanical robustness and upgrading the module's fire safety rating. Under adequate albedo conditions — such as light gravel or concrete surfaces — bifacial gain delivers a real-world 8–15% energy uplift over comparable monofacial modules with no significant increase in module cost. - **30-Year Power Output Warranty** - The manufacturer guarantees ≥80% of rated power output after 30 years — on par with the Goldi Solar GS10-B144-TF (30 years) and superior to the standard 25-year warranties common among a large share of PERC bifacial module manufacturers from the 2021–2023 period. - **Half-Cut 182 mm Cells — Low Resistive Losses** - The half-cut cell format (144 cells from M10 / 182 mm wafers) reduces per-cell current by ~50%, lowering I²R thermal losses and minimizing the impact of partial shading on the full string. The 182 mm wafer delivers high power density (530–550 Wp) while keeping mechanical frame stress within acceptable limits. ## Cons - **Series Discontinued (Since 2023)** - The EX530-550M(B)-144(HC)(182)BF line was manufactured from 2021 to 2023 and has been officially discontinued. This means no possibility of sourcing identical modules for system expansion, limited availability of after-sales technical support, and a real risk of no direct replacement in the event of physical damage — a particularly significant concern over a 25–30-year operational horizon. - **PERC Technology Being Superseded by TOPCon (2026)** - As of 2026, N-type TOPCon modules have become the market standard for new commercial and utility-scale installations, offering a lower temperature coefficient (~-0.30%/°C versus -0.353%/°C for this series), higher effective bifacial gain (~75–80% vs. ~65–70% for PERC bifacial), and a lower annual degradation rate (~0.4% vs. ~0.55%). For projects financed after 2024, PERC is considered a previous-generation technology. ## About this series The Exiom EX530-550M(B)-144(HC)(182)BF photovoltaic module series is an advanced solution based on **bifacial technology**, which enables active energy generation from both sides of the panel. The use of **half-cut cells and 182 mm silicon wafers** allows for a significant reduction in resistance losses and better performance under partial shading conditions. It is a product designed for professional solar farms and large commercial installations where the highest LCOE is a priority. Thanks to the use of **gallium-doped wafers**, these panels effectively eliminate the problem of LID degradation, guaranteeing parameter stability over many years of use. The distinguishing feature of the series compared to the competition is the optimal combination of high power density with exceptional mechanical resistance to snow and wind loads. This solves the problem of limited mounting area, allowing for more power from fewer modules. The use of **double tempered glass** not only increases the lifespan of the device, but also improves the fire safety of the entire structure. By choosing this series, investors receive technology that realistically shortens the return on investment time by maximizing yields from diffused reflected light. This series outperforms standard solutions in terms of efficiency in harsh environmental conditions. ## Notable figures - At 21.1% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - At 210.9 W/m² power density, roof space requirements are typical for \*\*PERC 500-550W\*\* panels - At -0.35%/°C, hot weather performance is typical for \*\*PERC 500-550W\*\* panels - Weight of 32.5 kg is 4.1 kg above \*\*PERC 500-550W\*\* median (28.4 kg) - verify structural support - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface ## Questions ### Is the Exiom EX530-550M(B)-144(HC)(182)BF series still available for purchase? The EX530-550M(B)-144(HC)(182)BF series has been discontinued by Exiom Solution S.A. No new units are being manufactured; however, individual modules may still be available in distributor warehouses. If you require a replacement with similar specifications, it is advisable to contact your distributor regarding Exiom's current lineup based on newer TOPCon or HJT technologies. ### What warranty is provided for the Exiom EX530-550M(B)-144(HC)(182)BF panels? The manufacturer provides a 25-year product warranty covering physical defects and workmanship, along with a 30-year linear power warranty. After 12 years, the module should retain at least 90% of its nominal power output, and after 30 years, a minimum of 80%. This is one of the longer power warranties available on the market, making it particularly advantageous for large commercial installations and utility-scale PV farms. ### Does bifacial technology in the Exiom EX530-550M(B)-144(HC)(182)BF genuinely increase energy yield? Yes. Bifacial technology allows the rear side of the module to collect light reflected from the ground surface, such as light-colored gravel, concrete, or snow. In practice, this yields an additional 5 to 15% of energy per year compared to a conventional monofacial panel. The best results are achieved in ground-mounted installations, where exposure to reflected irradiance is greatest. ### How do half-cut cells and the 182 mm format affect the performance of the Exiom EX530-550M panel under partial shading? Splitting cells in half reduces series resistance and limits power losses caused by hotspot effects during partial shading — for example, from dirt or leaves. The M10 wafer size of 182 mm represents an optimal format in terms of balancing cell efficiency with the mechanical integrity of the module at large surface areas, which becomes significant for panels exceeding 2.2 meters in length. ### Do the Exiom EX530-550M(B)-144(HC)(182)BF panels suffer from LID degradation after commissioning? No. The series uses gallium-doped cells instead of conventional boron-doped cells. Gallium doping effectively eliminates the LID (Light-Induced Degradation) effect — the power loss that occurs during the first weeks of operation. Conventional boron-doped panels can lose up to 1–3% of their nominal power output at the very start of their service life. Thanks to this technology, the performance of the Exiom EX530-550M series remains stable from day one. ### What types of installations is the Exiom EX530-550M(B)-144(HC)(182)BF series best suited for, and can it be used on a rooftop? The series was designed primarily for large ground-mounted PV farms and commercial installations, not for residential rooftop applications. The module weighs approximately 27.4 kg and measures 2279 × 1134 mm, which requires a robust mounting structure and professional handling equipment. On the pitched roof of a typical residential building, its size and weight can be problematic, making it a suboptimal choice for prosumer installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EX530-550MB-144HC182BF-4f14364f0fea.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.5 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.4 pp | | [Exiom EX345AGR-182](https://comparepv.com/panel/exiom-ex345agr-182) | 345 W | -200 W, lighter, -7.7 pp | | [Exiom EX350AGR-182](https://comparepv.com/panel/exiom-ex350agr-182) | 350 W | -195 W, lighter, -7.6 pp | | [Exiom EX355AGR-182](https://comparepv.com/panel/exiom-ex355agr-182) | 355 W | -190 W, lighter, -7.4 pp | | [Exiom EX360AGR-182](https://comparepv.com/panel/exiom-ex360agr-182) | 360 W | -185 W, lighter, -7.2 pp | | [Exiom EX365AGR-182](https://comparepv.com/panel/exiom-ex365agr-182) | 365 W | -180 W, lighter, -7.0 pp | | [Exiom EX530MB-144BF](https://comparepv.com/panel/exiom-ex530mb-144bf) | 530 W | -15 W, -0.6 pp | | [Exiom EX535MB-144BF](https://comparepv.com/panel/exiom-ex535mb-144bf) | 535 W | -10 W, -0.4 pp | | [Exiom EX540MB-144BF](https://comparepv.com/panel/exiom-ex540mb-144bf) | 540 W | -0.2 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +100 W, cooler, +3.9 pp | --- Source: https://comparepv.com/panel/exiom-ex545mb-144bf Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.