Warranty pick, heavy for its output
The Exiom EX440-455M(B)-144(HC)(166)BF panel series is an advanced solution based on Bifacial technology, which allows for energy generation not only from direct sunlight but also from reflected light falling on the rear side of the module. Thanks to the use of Half-Cut cells and a 144-cell design, these modules exhibit significantly lower resistance losses and higher resistance to the negative effects of partial shading, which directly translates into stable energy production in variable weather conditions. This solution is ideal for investors seeking maximum efficiency from a given area, especially in ground-mounted installations and on flat roofs with a high light reflection coefficient. The robust construction and tempered glass provide exceptional resistance to mechanical loads, protecting the system against extreme wind or accumulating snow. This series stands out from the competition with an excellent balance between innovative 166-millimeter cell technology and durability, making it an optimal choice for large-scale commercial projects and modern photovoltaic farms. Choosing these modules minimizes the risk of potential-induced degradation and guarantees long-term investment efficiency while maintaining rigorous quality standards.
Ranking
Signals from the data
Commercial and shaded-installations.
Weight-limited structures.
Top 17% of the PERC 400-450 W segment, against a median of 25 yrs.
Bottom 7% of the PERC 400-450 W segment, against a median of 53.0. Ranked 12,693rd in the whole database.
The manufacturer guarantees module performance for 30 years, compared to the industry-standard 25-year linear power warranty offered by most suppliers (JA Solar, Longi, Trina Solar). The extended linear warranty directly improves project financial models and reduces investment risk in LCOE calculations.
The bifacial construction harvests energy from reflected irradiance — in ground-mount systems with high-albedo surfaces (albedo >20%), bifacial gain typically reaches 5–25% additional annual yield compared to monofacial modules. The half-cut 144-cell technology further reduces resistive losses and improves tolerance to partial shading.
The series carries IEC 61730 and IEC 61215 certifications and has demonstrated resistance to salt mist, ammonia, PID, and sand/dust. This certification scope exceeds the market baseline and qualifies the modules for deployment in demanding locations such as coastal sites, agricultural environments, and desert regions.
Exiom Solution S.A., headquartered in Spain, is one of the few European module manufacturers competing in the global market. The geographic proximity shortens the supply chain for the Polish market, simplifies warranty and service logistics, and may fulfill regional-origin requirements in public tenders that include local content clauses.
The series reaches a maximum efficiency of 20.9%, while direct comparables — Sunlike Solar SKT420~455M10-108D6 and IBC Solar LS-TA2 — achieve 22.8%. On an identical 100 m² installation footprint, this translates to approximately 9% less energy generated. Only the Waaree ARKA SERIES (20.93%) remains at a comparable efficiency level.
In 2024, TOPCon accounted for over 66% of global module shipments by manufacturing capacity, while PERC's market share fell to approximately 35–40%. PERC cells exhibit a higher annual degradation rate (0.6–0.8%/yr vs. 0.4–0.5%/yr for TOPCon) and greater first-year LID losses (~2% vs. ~1%), resulting in lower total lifetime energy yield over a 30-year operating period despite the extended power warranty.
Manufacturer data indicates the absence of a current Bloomberg NEF bankable Tier-1 classification. This may complicate securing project finance for installations above 1 MWp, where lenders typically require modules from certified Tier-1 suppliers as a condition for non-recourse debt.
- At 20.5% efficiency, this panel is on par with typical PERC 400-450W modules
- At 204.7 W/m² power density, roof space requirements are typical for PERC 400-450W panels
- At -0.35%/°C, hot weather performance is typical for PERC 400-450W panels
- Weight of 27.5 kg is 5.5 kg above PERC 400-450W median (22.0 kg) - verify structural support
- Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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