#None #Photovoltaics #Solar Safety #AIKO ABC

Addressing the Rising Temperatures in Europe

Europe has been experiencing increasingly frequent and intense heatwaves, with record-breaking temperatures impacting both Southern and Central regions. This climatic shift poses significant challenges for energy infrastructures, particularly for the rapidly growing photovoltaic installations across the continent. As systems are tested by harsher climatic conditions, ensuring their safety has become crucial.

The Shift in Focus from Efficiency to Safety

For years, advancements in the photovoltaic sector have primarily focused on enhancing efficiency and reducing costs. However, as operational environments become more demanding due to extreme weather events, safety emerges as a critical factor in assessing module performance. With this backdrop, AIKO's All Back Contact (ABC) solar modules are gaining traction not only for their superior efficiency and aesthetic design but also for their exceptional safety features.

AIKO ABC modules have set themselves apart as the first photovoltaic modules globally to receive the TÜV Rheinland certification for "PV Module Anti-Ignition Hazard." Under rigorous testing conditions established by TÜV Rheinland, these modules have demonstrated hot spot temperatures over 35% lower than traditional modules. This exemplary performance highlights their ability to mitigate thermal risks associated with localized overheating.

Advanced Technology for Enhanced Safety

The ABC technology is specifically designed to maintain hot spot temperatures below 100 °C under relevant operating conditions, helping to alleviate excessive thermal stress and reduce potential fire hazards. Comparative shading tests have shown that AIKO ABC modules consistently record lower hot spot temperatures than conventional modules, regardless of single-cell or large-area shading conditions.

So, what sets the ABC modules apart in terms of thermal safety? The technology is able to effectively mitigate hot spots arising from partial shading, microcracks, or other internal defects, which can disrupt normal current flow within a photovoltaic module. When part of a cell becomes shaded, its current production capacity drops, potentially leading to inverse polarization that causes localized energy dissipation in the form of heat. Continuous localized heating may accelerate material degradation, and in severe cases, pose fire risks.

Innovative Design Promoting Safe Energy Flow

AIKO ABC modules feature innovative design elements that address these risks. One of the standout features is a bypass function that works at the cell level, akin to a bypass diode, which enhances current flow during partial shading. This architecture provides alternative paths for current flow around the affected area, preventing electrical stress and localized power dissipation from concentrating in one spot. As a result, this design significantly minimizes excessive temperature rise at hot spots, improving thermal safety during partial shading conditions.

Illustrative demonstrations, like those conducted at Intersolar Europe 2026, showcased side-by-side comparisons of ABC modules and traditional counterparts under identical lighting and shading scenarios. Observations clearly indicated the superior thermal management of AIKO ABC technology in managing partial shading.

Tackling Microcrack Risks with Copper Interconnection

Furthermore, AIKO's copper interconnection technology markedly reduces the risk of hot spots attributed to microcracks. Unlike traditional silver paste metallization, which incorporates glass frit, AIKO ABC utilizes pure copper grids integrated with the silicon wafer. This robust copper-based structure substantially enhances cell toughness and mechanical strength, improving resistance to microcracks and the associated risk of hot spot formation.

Fire Resistance as a Key Safety Feature

Fire safety for photovoltaic installations extends beyond internal module overheating prevention. Solar panels can also be exposed to external fire sources, necessitating fire resistance as a crucial aspect of module safety. During IEC fire resistance tests, where modules face a flame at 760 °C for 10 minutes, AIKO's double-glazed ABC modules achieved the highest fire resistance rating (Class A), compared to the Class C rating of traditional modules. This stark difference underscores the variance in flame resistance and fire propagation capabilities between the two technologies.

Building a Safer, More Resilient Solar Future

As Europe accelerates its transition to renewable energy, focusing solely on energy efficiency is no longer sufficient. Attributes such as thermal safety, fire resistance, and long-term reliability are becoming increasingly important in evaluating next-generation photovoltaic technologies.

In this evolving landscape, AIKO ABC technology represents a significant advancement in solar solutions, merging high performance with enhanced safety. This innovation plays a vital role in constructing a more resilient and sustainable energy future for the continent.