Sonnex Energie is proud to unveil our next-generation TBC back contact solar panels, set for market release starting Q3 2025. Engineered for peak performance and long-term reliability, these new modules combine the strengths of TOPCon (Tunnel Oxide Passivated Contact) and IBC (Interdigitated Back Contact) cell technologies, achieving module efficiencies of up to 24%—among the highest in the industry today.
What is TBC?
TBC stands for Tunnel-Back Contact, an innovative cell design that fuses the advanced passivation of TOPCon with the aesthetic and performance benefits of back-contact structures. This hybrid approach eliminates front-side metal shading, enhances light absorption, and maximizes electrical performance.
Product Highlights
Residential Solutions: 480W / 485W
• Panel Size: ~2.0 m²
• Design: Sleek full-black appearance for seamless rooftop integration
• Efficiency: Up to 24%
• Ideal For: Premium rooftop installations, where high output per square meter and modern aesthetics are essential
C&I (Commercial & Industrial) Solutions: Up to 650W
• Panel Size: 2382 x 1134 mm
• Efficiency: Industry-leading power output with minimal system footprint
• Built For: Ground-mounted systems, commercial rooftops, and large-scale industrial arrays seeking top performance and reliability.
Why Choose Sonnex TBC Panels?
• Highest Efficiency Class: Combining TOPCon’s high carrier selectivity and IBC’s zero front shading, these modules reach up to 24% module efficiency, maximizing energy yield on all types of rooftops or ground systems.
• Extended Performance & Warranty: Backed by 30 years product and performance warranty, ensuring long-term stability and customer confidence.
• Optimized Aesthetics: Full black, uniform appearance with no front-side busbars—perfect for residential homes and visible commercial projects.
• German Quality, Global Standards: Designed and tested under Sonnex’s stringent quality control protocols, ensuring durability, performance consistency, and long-lasting value.
A Step Toward the Future of Solar
Sonnex TBC solar panels are a testament to our commitment to innovation, efficiency, and sustainable energy solutions. Whether you’re a homeowner seeking to maximize your rooftop space, or a commercial partner looking for high-yield modules for C&I installations, our new TBC series delivers superior results in every application.
Now available for pre-orders. Full launch begins in Q3 2025.
Stay ahead of the curve with Sonnex TBC—where technology meets performance.
