The photovoltaic industry has entered a new phase of maturity. Efficiency continues to improve. But the nature of progress is changing. The TaiyangNews Cell & Module Technology Trends 2026 report captures this shift. Performance gains are no longer driven by isolated breakthroughs. They now come from coordinated improvements across the value chain.
The report also provides an overview of upstream developments. Silicon manufacturing, wafering, and crystal growth are becoming more aligned with downstream requirements. Wafer thickness continues to decrease, material specifications are becoming tighter, and automation levels are increasing. At the same time, energy consumption and carbon footprint are emerging as critical factors in polysilicon production.
This edition highlights how the 3 mainstream cell architectures of TOPCon, heterojunction (HJT), and back-contact (BC) are evolving along their own paths. At the same time, the boundaries between them are becoming less distinct.
TOPCon remains the industry’s workhorse, offering a strong balance of performance and cost. But it is also moving into next-generation configurations. These include refined passivation, selective contact structures, and improved metallization. BC technology is gaining momentum, setting new performance benchmarks and moving closer to large-scale adoption. HJT continues to advance through targeted improvements in materials and process efficiency.
At the module level, design innovations are playing a larger role in performance gains. Multi-cut layouts – primarily adopted in TOPCon – are improving current handling. Gapless designs have become a common industry-wide approach to increase the active area. Zero-busbar (0BB) architectures, initially adopted in HJT, are now being adopted in BC designs. These approaches improve power output and energy yield. They also build on cell-level advances such as edge passivation and rear-side engineering.
The report also looks into innovations in the module bill of materials (BOM). Advances in encapsulation materials, glass, frames, sealing technologies, and electrical components are contributing to improvements in performance and reliability. Material selection is increasingly linked to cell architecture and module design. At the same time, application-specific requirements – ranging from building-integrated PV (BIPV) to lightweight and harsh-environment deployments – are further driving changes in module materials and designs.
