GCL’s renewed SiRo module family blends advanced cell architecture with scene-specific engineering, delivering high-efficiency, high-reliability solar solutions designed to meet the evolving demands of global clean energy.

GCL, one of the most enduring forces in the photovoltaic industry, is entering a decisive new chapter. Grounded in decades of full value-chain experience, from polysilicon and wafers to cells, modules and integrated energy systems, this accumulated depth now underpins the evolution of its module strategy. Building on this foundation, the renewed SiRo brand emerges with an upgraded portfolio designed to meet rising expectations for reliability, efficiency and scenario-specific performance

At the heart of this brand evolution lies a renewed interpretation of SiRo: “Silicon as the Core, Marching Toward Zero.” It reflects GCL SI’s commitment to mastering silicon-based technologies while empowering its low-carbon mission through technological innovation. Designed for diverse deployment scenario—from distributed rooftops to utility-scale projects and challenging coastal or dust-prone environments—the refined SiRo family forms a coherent, performance-driven product system.

SiRo T Series (GCL TOPCon Module Series): Reliability Reinvented for Real-World Complexity

The upgraded SiRo T Series represents GCL’s strategic leap from general-purpose reliability to precise scenario-oriented engineering, offering customers modules designed to withstand real-world stress with stability, durability and high cost-performance. Across industrial rooftops, coastal environments and glare-sensitive areas, the T family is built to deliver dependable energy yield with reduced operational risk.

T – Anti-Dust Series: Stability for Low-Tilt Industrial Roofs

Dust accumulation has long undermined yields in low-tilt C&I installations. The Anti-Dust variant directly addresses this with:

• A frame redesigned without an A-side, eliminating dust-blocking edges.
• Precision encapsulation improvements, enhancing sealing integrity and long-term moisture protection.
• Reinforced mechanical load structures, ensuring stability under wind and snow stresses.

Together, these upgrades enable customers to cut cleaning cycles, lower O&M expenses and preserve stable energy output—making the Anti-Dust module an optimal “value-per-watt” option for C&I owners.

T – Marine Series: Built for Salt, Storms and the Sea

Coastal and offshore environments subject PV assets to some of the most aggressive conditions — including high salinity, constant moisture exposure and intense winds. The upgraded Marine series adopts a fortified structure designed for longevity:

• Thickened anti-corrosion frame coatings (5–10 μm).
• Dual-coating, double-glass anti-salt-spray glass achieving true zero water penetration.
• Dual-layer high-barrier POE offering PID resistance and enhanced UV durability.
• Four-layer waterproof junction box and upgraded diodes for safer thermal behaviour.
• Enhanced four-latch connectors with dual sealing rings, certified through 60-hour water-ingress-free testing.

These attributes substantially extend service life and reduce maintenance risks—critical for offshore hybrid platforms, coastal microgrids and remote island projects.

Across all variants, the T series embodies SiRo’s core value: stable, reliable, scenario-appropriate performance that reduces lifecycle costs and maximizes asset value.

SiRo B Series (GCL GPC Module Series): From Efficiency Excellence to Aesthetic Expression

The upgraded SiRo B Series signifies GCL’s evolution from purely high-efficiency modules toward aesthetic-driven, high-end distributed products. Built on the advanced GPC 2.0 architecture, the series now reaches cell efficiencies above 27.1% while maintaining excellent cost competitiveness through reduced non-silicon manufacturing inputs.

Key innovations include:

• Multilayer gradient dielectric films achieving ultra-low reflectivity (<0.8%).
• GCL’s proprietary high-purity FBR granular silicon, ensuring purity from the material source.
• Advanced tunnelling passivation contacts, reducing recombination losses for superior electrical performance.
• Non-destructive laser patterning, which minimizes thermal impacts and improves structural precision.

These upgrades reinforce the B series’ dual value proposition: top-tier conversion efficiency and refined architectural aesthetics. For homeowners, commercial developers and urban designers, it offers a module that does more than generate power—it elevates the visual quality of rooftops and building envelopes.

Embedded within the B series is also the broader SiRo advantage: full-chain manufacturing control, advanced materials engineering and scenario-oriented adaptability. Customers gain a solution that is efficient, visually cohesive and reliably traceable through GCL’s carbon-data platform.

A Future in Motion: The 2026 Arrival of the New SiRo P Series (GCL Perovskite Module Series)

Looking ahead, GCL SI is preparing to introduce an entirely upgraded SiRo P Series in 2026, extending the boundaries of tandem technology and system-level optimisation. Equipped with innovations such as SAM passivation, perovskite crystallisation control, textured deposition, ultrathin composite layers and advanced interface passivation, the upcoming P family is poised to redefine high-power modules for utility and C&I deployments.

These breakthroughs will enable the next-generation P modules to deliver significantly higher efficiency, enhanced temperature performance, and superior yield stability, even in extreme climates. More importantly, the 2026 P Series reflects GCL’s broader vision: accelerating the transition toward high-efficiency, low-carbon PV assets that support a resilient, intelligent and sustainable energy system.

A New Standard for the Solar Future

As the global energy transition accelerates, the renewed SiRo portfolio stands as a confident statement of where solar technology is heading—towards greater efficiency, stronger reliability, and deeper integration with architecture, geography and climate. With SiRo, GCL invites its customers and partners to step into a future where clean energy is not only abundant and economical, but also beautifully engineered and resilient by design.

Source: PV Magazine