Helix HARUKA

Helix HARUKA is a high-magnetic-field helical stellarator being developed by Helical Fusion in Japan. It will deploy high-temperature superconductor (HTS) magnets together with a liquid-metal (LM) wall/blanket system in a power-plant-relevant configuration. The primary KPIs for HARUKA are successful system integration of the HTS magnet system and LM blankets into a single fusion machine, and demonstration of long-duration, steady-state plasma operation targeting continuous runs of more than 24 hours. Helix HARUKA is not designed to generate electricity; instead, it will serve as the integrated physics-and-engineering testbed that de-risks and validates the core technologies required for the Helix KANATA power plant.

Helical Fusion has been constructing Helix HARUKA with the aim of operating it around 2030 as a key milestone on its roadmap toward commercial stellarator fusion.