Dinto Solar Unveils 2026–2030 HJT Roadmap Targeting 32% Efficiency and 1,000 W-Class Modules

As the global photovoltaic industry accelerates its transition toward n-type technologies, Dinto Solar continues to deepen its long-term commitment to heterojunction (HJT) innovation. Guided by a disciplined, long-term R&D strategy, the company aligns technology evolution closely with market demand, continuously optimizing the balance between reliability, efficiency, and cost.

Today, Dinto Solar officially announced its 2026 HJT Technology Roadmap, outlining the company’s heterojunction development pathway for the 2026–2030 period. Designed as a forward-looking yet updatable framework, the roadmap provides a clear response to industry trends while establishing a solid technological foundation for sustained growth.

Advanced HJT Cell Technologies

At the cell level, the roadmap highlights several core innovations. High-efficiency TCO thin films based on low-resistance, high-transmittance materials are applied to enhance carrier transport while improving both optical and electrical performance.

Ultra-narrow gridline printing reduces finger widths to ≤15 μm, cutting shading losses by approximately 30% and increasing effective light absorption. In parallel, Dinto Solar is advancing C-HJT 2.0, a copper-based metallization technology for heterojunction solar cells. By replacing conventional silver-intensive designs with high-precision copper gridlines, C-HJT 2.0 reduces gridline resistivity by more than 60%, delivers an efficiency gain of around 1% at the cell level, and establishes a scalable pathway toward lower material cost and higher manufacturability.

Looking ahead, Dinto Solar continues to develop HJT–perovskite tandem cell architectures. By integrating a perovskite top subcell with an HJT bottom subcell, the tandem structure broadens the solar spectrum response to 300–1200 nm, advancing the theoretical efficiency limit beyond 40%.

High-Performance HJT Module Technologies

On the module side, Dinto Solar is advancing power density through structural innovation. Building on zero-busbar (0BB) technology, the company has developed a one-third cut (1/3-cut) cell architecture, also referred to in the industry as triple-cut cells, combined with a negative-spacing flexible interconnection design. This configuration maintains the standard module format of 2384 mm × 1303 mm while delivering a power increase of at least 4%.

Additional innovations—including flexible interconnections, full-screen module design, high-reflectivity triangular ribbons, and high-transmittance coated glass—further enhance both module efficiency and long-term reliability.

HJT Technology Evolution Pathway

According to the roadmap, Dinto Solar will achieve mass production of 1/3-cut HJT modules by 2026, with power output reaching ≥760 W and efficiency ≥24.47%, marking a key milestone in the scalable application of this technology.

By 2028, the integration of C-HJT 2.0 technology on the 1/3-cut platform is expected to push mass-produced module power beyond 800 W, with efficiency rising to approximately 25.75%, setting a new benchmark for delivered HJT module performance.

By 2030, through deep integration of heterojunction and perovskite tandem technologies, Dinto Solar targets mass-produced module power exceeding 1,000 W and conversion efficiency surpassing 32.20%, representing a step-change leap in both power output and efficiency.

A Roadmap Built for Long-Term Execution

More than a static plan, Dinto Solar’s 2026-2030 HJT Technology Roadmap represents a commitment to verifiable, scalable, and continuously upgradable innovation. By advancing heterojunction technology along a clearly defined path, Dinto Solar aims to deliver measurable value to the market and support the industry’s transition toward higher-efficiency, higher-quality photovoltaic solutions.