LONGi Exceeds 26% Efficiency on Solar Panel with HJT + IBC Cells

Why It Matters

Record‑breaking efficiencies shrink the cost gap between silicon and emerging technologies, accelerating the transition to cheaper, grid‑scale solar power. LONGi’s advances could reshape manufacturing standards and drive faster adoption of renewable energy worldwide.

Key Takeaways

• HIBC cell certified at 28.13% efficiency, world record for silicon
• Module efficiency reached 26.4%, highest for silicon panels
• iPET and LIC technologies boost passivation and crystallization
• Hybrid heterojunction design merges crystalline and amorphous silicon benefits
• Ultra‑high efficiency could lower solar LCOE and accelerate deployment

Pulse Analysis

Silicon has long been the workhorse of the photovoltaic industry, but its efficiency ceiling has hovered around 26% for commercial modules. LONGi’s recent certification of a 28.13% HIBC cell shatters that ceiling, demonstrating that silicon can still deliver performance gains previously thought exclusive to multi‑junction or perovskite devices. By integrating heterojunction concepts—pairing crystalline silicon wafers with thin amorphous silicon layers—LONGi leverages the high voltage of crystalline silicon and the superior surface passivation of amorphous silicon, creating a hybrid cell that maximizes charge collection while minimizing recombination.

The technical leap hinges on two process innovations. In‑situ Patterned Edge Passivation (iPET) applies a localized dielectric coating directly during wafer fabrication, dramatically reducing edge‑related carrier losses. Laser‑Induced Crystallization (LIC) fine‑tunes the micro‑structure of the silicon lattice, improving crystal quality without costly high‑temperature steps. Together, these advances streamline production, lower defect density, and enable thinner wafers, which translate into lighter, higher‑output modules. LONGi’s R&D pipeline suggests that scaling these methods could bring ultra‑high‑efficiency panels to market within the next few years, offering manufacturers a clear route to differentiate products.

From a market perspective, the 26.4% module efficiency narrows the levelized cost of electricity (LCOE) gap between silicon and emerging technologies such as perovskite‑silicon tandem cells. Utilities and large‑scale developers stand to benefit from fewer panels per megawatt, reduced balance‑of‑system costs, and simplified logistics. Moreover, the achievement reinforces investor confidence in silicon’s continued relevance, potentially redirecting capital away from riskier next‑generation materials. As policy frameworks worldwide tighten renewable targets, LONGi’s breakthrough provides a timely, cost‑effective solution that could accelerate solar deployment and help meet climate goals faster.