Helical Fusion

Helical Fusion is developing a helical-stellarator route to fusion electricity. Its Helix program separates the intermediate Helix HARUKA demonstration device from Helix KANATA, the planned first power-producing unit. The company targets practical power generation in the 2030s and defines success in terms of net electricity, continuous operation and maintainability. These are development objectives, not commercial capabilities already demonstrated by the company. Helical Fusion: coil manufacturing machine

The company’s published research program spans superconducting conductors and their joints, liquid-metal blankets, fuel injection, plasma heating and maintenance. Work with the National Institute for Fusion Science and universities connects the reactor concept to specific engineering tasks. In May 2026 it began joint gyrotron research with the University of Tsukuba for HARUKA, including design reviews for continuous-wave operation. For overseas readers, this explains why a reactor developer’s progress must be assessed across several subsystems rather than a single plasma metric. Helical Fusion: research and development

A dedicated coil-manufacturing machine developed with Sugino Machine was announced as completed in February 2026. Helical Fusion: coil manufacturing machine That is a manufacturing milestone; it does not establish an operating fusion plant. Fuji Electric joined the Helix program through a capital and business alliance announced on 8 October 2026. The partnership extends industrial involvement in the development of HARUKA and KANATA. Future schedules remain dependent on subsequent engineering and integrated testing. Fuji Electric and Helical Fusion: capital and business alliance, 8 October 2026

Phase 1 concerns magnet hardware at the National Institute for Fusion Science in Toki, Gifu, with coil-current testing targeted for 2027. Phase 2 would integrate plasma and major reactor technologies; it explicitly does not include power generation. The cited announcement does not disclose the location of Phase 2 or KANATA. Dates for tests and the company’s later electricity ambitions remain targets until results are reported. HARUKA phases and location